AEROPLANE PATENTS
AEROPLANE PATENTS
BY
ROBERT M. NEILSON
M
WHITWORTH EXHIBITIONER, MEMBER OF THE INSTITUTION OF MECHANICAL
ENGINEERS
MEMBER OF THE INSTITUTION OF ENGINEERS AND
SHIPBUILDERS IN SCOTLAND
CONSULTING ENGINEER
CHARTERED PATENT AGENT
N\
OF THE
UNIVERSITY
OF
NEW YORK
D. VAN NOSTRAND COMPANY
23 MURRAY AND 27 WARREN STREETS
1910
TL f
PREFACE
THIS book is intended neither as a treatise on Patent Law nor
as a rival to the volumes of Abridgments of Specifications of
Patents published by the British Patent Office. Its purpose may
be expressed briefly as being to give useful hints and data relating
to patents, to inventors and manufacturers interested in heavier-
than-air flying machines.
From eleven years experience of patent agency work the author
believes that he is familiar with many of the questions which
occur to inventors and manufacturers, and he attempts to deal
with these questions in language as simple as possible.
The difficulty which manufacturers and users experience in
connection with a rapidly developing industry in ascertaining
what devices can be made or used without infringement of patents
is sought to be met by the section in which many of the important
flying machine patents are reviewed ; and it is hoped that this
section will also prove to be of considerable service to inventors.
R. M. N.
ATLANTIC CHAMBERS,
45, HOPE STREET,
GLASGOW.
September, 1910.
217056
CONTENTS
SECTION. PAGE
I. ADVICE TO INVENTORS 1
II. REVIEW OF BRITISH PATENTS 14
III. BRITISH PATENTS AND APPLICATIONS FOR PATENTS FROM 1860 TO
1910, ARRANGED IN ORDER OF APPLICATION .... 70
IV. BRITISH PATENTEES, ARRANGED ALPHABETICALLY . . .81
V. UNITED STATES PATENTS FROM 1896 TO 1909, ARRANGED IN
ORDER OF ISSUE 87
VI. UNITED STATES PATENTEES, ARRANGED ALPHABETICALLY. . 89
LIST OF ILLUSTRATIONS
FI - PAGE
1 and 2. PHILLIPS' PLANES 16
3. MAXIM'S ALTITUDE CONTROL 17
4. MAXIM'S WING TIP 18
5. MAXIM'S PROPELLER 19
6 and 7. PENNINGTON'S AUTOMATIC EUDDER CONTROL . . .20
8 and 9. LANCHESTER'S FLYING MACHINE 21
10. LANCHESTER'S PROPELLER 22
11. LANCHESTER'S SECTION OF WING 22
12. CHANUTE'S GLIDER. SIDE ELEVATION 23
13. CHANUTE'S GLIDER. PLAN 24
14. CHANUTE AND HERRING'S FLYING MACHINE . . . .25
15. 16 and 17. CHANUTE AND HERRING'S SECTIONS OF PLANES . . 26
18. CHANUTE AND HERRING'S SECTION OF STRUT . . . .26
19, 20 and 21. WRIGHT FLYING MACHINE, WITH WING- WARPING
AND EUDDER ACTION 28
22. HANSEN-ELLEHAMMER'S STABILISATION DEVICE . . . .29
23. HARPER'S ENGINE, WITH EOTATING CYLINDERS . . . .30
24. VALVE GEAR OF HARPER'S ENGINE 30
25. EOE'S STEERING DEVICE 31
26. EOE'S STEERING DEVICE . 32
27. MURRAY'S PROPELLER DRIVE 33
28. DAVIDSON'S FISH-TAIL 34
29. DAVIDSON'S MECHANISM FOR ACTUATING TAIL . . . .34
30. LANCHESTER'S FLYING MACHINE 35
31. LANCHESTER'S AEROPLANE GIRDER 35
32. LANCHESTER'S TANDEM PROPELLER DRIVE 36
33. HENNEBIQUE'S STABILISATION DEVICE 38
34. HENNEBIQUE'S PROPELLER DRIVE 38
35. STRAKA'S TANDEM PROPELLER DRIVE 38
36. ESNAULT-PELTERIE'S STEERING AND EQUILIBRIUM MECHANISM . 39
37. ESNAULT-PELTERIE'S FLYING MACHINE 40
38 and 39. ESNAULT - PELTERIE'S STEERING AND EQUILIBRIUM
MECHANISM 41
40, 41 and 42. ESNAULT-PELTERIE'S EUDDER 42
43. HEEREN'S STABILISATION DEVICE 43
44. BLERIOT'S EUDDER MECHANISM 43
45. ESNAULT-PELTERIE'S WING BEAM 44
46. ESNAULT-PELTERIE'S WING BEAM 45
A. p. b
x LIST OF ILLUSTEATIONS
FIG. PAGE
47. SHADBOLT'S EUDDER 45
48. BLERIOT'S STEERING MECHANISM 46
49. ESNAULT-PELTERIE'S AUTOMATIC WING- WARPING ARRANGEMENT 47
50. GARSED'S STABILISATION DEVICE 48
51. CLARKE'S PLYING MACHINE 49
52. HARE'S AEROPLANE . . . 49
53 and 54. MAXIM'S FLYING MACHINE 50
55. TRIBELHORN'S Box EUDDER 51
56. BLERIOT'S STEERING LEVERS 51
57. BLERIOT'S STEERING MECHANISM 52
58. J. M. WRIGHT'S PROPELLER DRIVE 53
59. WRIGHTS' FLYING MACHINE 55
60. WRIGHTS' VERTICAL RUDDERS 56
61. ESNAULT-PELTERIE'S SPRING BUFFER 57
62. BLERIOT'S WHEEL SUPPORT . . 58
63. EOE'S FLYING MACHINE 58
64. WRIGHTS' STABILISATION DEVICE .59
65. 66 and 67. ESNAULT-PELTERIE'S MOVABLE BLADE PROPELLER . 61
68. LANCHESTER'S STEERING DEVICE 62
69. LANCHESTER'S Box EUDDER .62
70 and 71. GNOME MOTOR .... . . .63
72. HERRING'S GYROSCOPICALLY-CONTROLLED PROPELLERS . . 64
73. WRIGHTS' CAMBERED EUDDER 65
74. SHORT'S CAMBERED EUDDER . . . . 67
75. SHORT'S CAMBERED PLANE OR EUDDER 68
76 and 77. GRACE'S CLAMPING DEVICE 69
f
UNIVERSITY
.
AEKOPLANE PATENTS
SECTION I
ADVICE TO INVENTORS
What can be Patented. A valid British patent can be
obtained only for what is new, useful and constitutes invention.
Novelty alone is not sufficient, nor yet novelty combined with
usefulness. The discovery of a new physical law, say, for
example, a new law relating to the deflection of stream lines in
moving air, could not be patented even although the discovery
might be, not only of academic interest, but also of practical
value. The invention, however, of a new form of aerofoil adapted
to take advantage of the new discovery might be good subject-
matter for a patent. Moreover, novelty and invention are not
sufficient without usefulness; and a patent may be upset for
absence of utility. A patent for a useless invention may be a
hindrance to industry, and can only be of profit to the patentee
through intentional or unintentional deception.
Novelty according to British law means . novelty within the
United Kingdom. Prior knowledge of the invention abroad,
even in a British Colony, is no bar to the obtaining of a valid
British patent ; so that a British aviator might invent and patent,
say, a new form of attachment of propeller blades which had
previously been invented by an American and employed on a
ftying machine publicly exhibited in America, but not described
in any printed publication in circulation, or in a public library,
in the United Kingdom prior to the Britisher's date of application
for the patent.
Moreover, an inventor is not debarred from obtaining a
valid patent for an invention by reason of the invention
having previously been invented by another party and tried
in secret within the United Kingdom. It frequently happens
that two persons independently invent the same invention.
Priority is then accorded to the first of the two who applies
A.P. B
2 AEEOPLANE PATENTS
for the patent, even although the other party was the first to
invent.*
What constitutes " Invention." It has been said that
invention is essential in order to obtain a valid patent. Whether
a certain change in design does or does not comprise invention
has been the subject of many a lawsuit, and the subject cannot
be treated exhaustively in the present volume. Only a single
piece of advice will be given which will be illustrated by an
example. Suppose that the improvement lies in a new construc-
tion of transverse rib for supporting the fabric of an aeroplane
wing. The inventor or designer should put to himself the
question : Is the improvement so natural and so obvious that an
intelligent workman engaged in the manufacture of aeroplane
wings and having a knowledge of all that has already been done
of a relevant nature would in nine cases out of ten think of it ?
If the answer to the question is in the affirmative, there is
probably no invention ; if in the negative, there probably is. In
many cases the inventor or improver will not be able to answer
the question with confidence, and in such cases he should consult
a patent agent who has sufficient knowledge of aeroplane con-
struction to be able to give a reliable opinion.
Patents and Designs. Certain novel and useful improve-
ments can be protected by registering the design. It is cheaper
to register a design than to obtain protection by means of a
patent ; and the question often arises as to which means should
be chosen to obtain protection. In debating this question it is
important to note that, in considering whether a new design is
sufficiently novel and distinctive to be registrable, and also in
considering whether a registered design is infringed by a some-
what similar design, the reason for adopting the design, and the
utility of the design, must be put in the background. Designs
should be compared by the eye alone. An engine builder might
conceive, say, a new design of a crank-shaft bearing which
possessed decided advantages but which might be of such a
nature that it could be imitated, and the same effect obtained, by
many other designs which, judged by the eye alone, were all
considerably different from the original. Registration of design
would in such a case afford little protection ; but, if the purpose
of the innovation were new, a patent could be obtained. It
* See, however, remarks on International Convention on p. 9.
ADVICE TO INVENTOKS 3
sometimes happens on the other hand that, even as regards a
part of a machine which is not exposed to public view and in
which appearance is no consideration, the virtue of a particular
configuration lies in the precise design adopted ; and in such a
case registration of design affords all the protection possible and
is easier and cheaper to obtain, and more quickly obtained, than
a patent.
The term of a patent is fourteen years. A design is registered
in the first instance for five years : an extension of term for
another five years can afterwards be obtained ; and, with the
Comptroller's consent, a second extension for five years more
may be obtained. The full term of registration for a design may
thus be fifteen years.
Who Can apply for a Patent ? A single applicant for a
British Patent must be the inventor. Where there are two or
more applicants, these must include the inventor or inventors ;
but one or more non-inventors may also be included. What really
amounts to an exception to this rule (although it may be argued in
legal language not to constitute an exception) lies in the fact
that, if an invention previously unknown in the United Kingdom
is communicated to a party in the United Kingdom from a party
abroad, the communicatee can apply for a patent. There is a
further exception to the rule in certain cases in which an applica-
tion for a British patent is made by a party or parties who have
previously applied for a patent abroad. This exception is of
little interest to the British inventor and need not be discussed.
Joint Patentees, As it is common for two or more persons
to combine to apply for a patent, the respective rights of the
two parties are of interest. It should be noted in the first place
that, if one of the applicants is the inventor and the other is not,
the law makes no distinction between the two : each has the same
rights as the other. Moreover, whether one or more of the
patentees are inventors, any one of them has, in the absence of an
agreement, the right to work the invention without the consent of
his colleague or colleagues ; but no one of them can grant a
licence without the consent of the others. In the case of the
death of one of the patentees, his interest in the patent devolves
on his personal representatives. Joint applicants for a patent
should, as a rule, have an agreement in writing, no matter how
intimate or friendly be their relationship to each other.
B2
4 AEROPLANE PATENTS
Employees and Patents. In the absence of an agreement
to the contrary, it is quite in order for an employee to apply for a
patent for his own invention, even if the subject-matter of the
invention is relevant to the work on which he is employed and
for which he is paid. It would be fraud, however, for an
employee to apply for a patent for an invention which originated
with his employer and which he had simply developed on his
employer's instructions. An employer is quite entitled to use
his employees to assist him in working out his ideas and in
improving them, and he can then, quite rightly, apply for a
patent in his own name alone. Moreover, an employer may ask
his employees to sign an agreement to the effect that they will
not apply for any patents without first obtaining his consent ;
and, without any specific statement on the subject, the terms on
which an employee is engaged or employed may render a particular
invention the property of his employer.
When an employee gives up his rights with regard to his own
invention to his employer, it is not allowable for the latter to
apply for a patent in his own name alone : the inventor must be
the applicant or a joint applicant. In all cases where an employer
wishes to have the patent rights of inventions of his employee,
a written and stamped agreement is desirable.
Steps to take to apply for a Patent. As soon as a
would-be patentee has decided on a patent, or when he is in
doubt as to whether or not to apply for a patent, he should consult
a patent agent ; and the writer would here put in a word of
warning against certain individuals and firms who are not, and do
not include among their principals, persons who are qualified to
call themselves patent agents but who in advertisements or
circulars term themselves " Patent Experts " or "Patent Bureau,"
or otherwise try to evade the law which forbids a man to repre-
sent that he is a patent agent unless he is on the official register
prepared in accordance with Act of Parliament.*
The application for the patent should be made before the
public is allowed to see the invention ; but the invention may be
worked in secret or shown or described in confidence to one or
* A copy of this register, containing the names and addresses of all patent
agents, can be obtained, either directly or through any bookseller, from
Messrs. Eyre and Spottiswoode, Limited, East Harding Street, London, E.C.
Price, Is. Postage, Id.
ADVICE TO INVENTORS 5
more individuals or firms before the date of application. It is
desirable to take all reasonable precautions to prevent the inven-
tion being known to the public before the date of application ; but
any disclosure through breach of faith will not be a bar to the
grant of a valid patent if the applicant lodges his application
without undue delay after hearing of the disclosure of the inven-
tion. The patent agent will give the applicant the necessary
information about Patent Office requirements with regard to an
application for patent.
Provisional Protection. An application for patent can be
lodged accompanied either by a provisional or by a complete
specification of the invention. When the former alternative is
chosen, a complete specification must be subsequently filed in
order to obtain a patent. The invention does not require to be
described in such detail in a provisional as in a complete
specification, and, with the former, drawings are not as a rule
required. Moreover, in a provisional specification the applicant's
claims do not require to be particularly formulated.
In the majority of cases it is the better course to file a pro-
visional specification in the first instance, because the trials of
the invention under service conditions often suggest small (and
occasionally large) improvements which can be incorporated in
the complete specification ; and it is usually not safe to put the
invention into service until a patent has been applied for. Suppose
for example, that the invention consists in a shock-absorbing or
shock-reducing device for use on alighting. The invention
may have been well thought out, and a model tried and found to
work satisfactorily, and the device may even have been fitted to
a flying machine and proved to act as intended during one or
two descents ; but it cannot be expected that the machine and
aviator will be intentionally exposed to risk of severe injury in
order to test the limit of its usefulness. If, however, pro-
visional protection is obtained, it may happen that a prolonged
experience or an accident may suggest valuable improvements.
Moreover, the filing of a provisional specification in the first
instance puts the applicant to less initial expense ; and, before
it is necessary to file a complete specification, he may, if not a
manufacturer himself, have come to an arrangement with a
manufacturer. Moreover, he may, during the interval, acquire
experience or knowledge which shows him that it will be
6 AEROPLANE PATENTS
advisable to abandon the application, or to frame his claims in
a way which he would not have done had he filed a complete
specification in the first instance. Six months or, on payment
of a late fee, seven months can elapse from the filing of a
provisional, to the filing of a complete, specification.
One complete specification can embody the subject-matter of
two or more provisional specifications which in the opinion of the
examiner are sufficiently allied to each other. In this case one
patent only is granted, a saving in fees thus being effected.
When a person files an application for a patent accompanied
by a provisional specification, he is said to apply for " provisional
protection"; and provisional protection dates from the date of
application.
Complete Specification in first instance. In many cases,
however, it is desirable to file a complete specification in the
first instance in order to get the full advantage of a patent at
as early a date as possible. An action for infringement cannot
be commenced until a patent has actually been granted, which is
not until the complete specification has been received, examined,
accepted and published by the Patent Office, and, although
retrospective damages may be obtained, this applies only to
the period subsequent to the publication of the complete
specification.
Search as to Novelty. The inventor is always more or
less in doubt as to the novelty of his invention, and the question
often arises as to whether he should have a search made through
the patent records with the object of reducing the uncertainty
to a minimum. An invention may, of course, be anticipated by
some publication not to be found in the patent records ; but a
thorough search made by a competent person familiar with the
official method of abridging the specifications and having the
necessary technical knowledge will, as a rule, leave only a small
chance that anything which would anticipate the invention exists
and has not been found.
As the British Patent Office makes a search, it is often best
for the inventor to save expense by applying for a patent
without previously making any search, and this is the course
which is usually adopted. When, however, it is proposed to
spend much money on the invention before the result of the
British Patent Office search is made known, it is generally to
ADVICE TO INVENTOKS 7
be recommended that a patent agent be instructed to make a
search. Of course a patent agent may, without making a search,
be able to inform the inventor of some prior patent which will
affect him, but he cannot be expected to be familiar with all that
is contained in the patent records. A search, if decided on,
should be done well.
What to Claim. An inventor must be largely influenced by
the advice of his patent agent on the matter of his patent
claims ; but a few words of advice may be useful. If too little
is claimed, the patent does not give adequate protection ; if too
much is claimed, the patent is invalid. It may be thought at
first that only reasonable care is required to avoid claiming too
much or too little, but this is not the case. The inventor must
remember that there are other persons who are as clever or let us
say almost as clever as himself, and that it is usually easier to
modify an invention than to originate it. A rival may, by a suitable
modification, avoid a claim and effect as good, or nearly as good, a
result ; and if, to guard against such an event, the claim is made
very wide, it may read so as to include some device other than the
inventor's but already known, which would render the patent
invalid.
The inventor, in consultation with his patent agent, must try
to decide as to what really constitutes the invention what, as
the Germans express it, is the new technical effect. A knowledge
by the patent agent of the principles of the subject to which
the invention relates is of the utmost use in enabling him to dis-
tinguish between essential and non-essential differences in design.
The inventor should inform his patent agent of all that he
knows has been previously done which will affect his patent.
Some inventors are inclined to hold back information which
might minimise their invention. Sometimes this is done inten-
tionally, and at other times unconsciously. It is a practice to be
avoided. In the belief that the applicant is entitled to broader
claims than he really is, the patent agent may insert claims which
may be objected to by the examiner and so cause unnecessary
trouble, or the examiner may pass the claims and the patent may
be invalid.
Moreover, the withholding of information may mislead the
patent agent as to the real gist of the invention, and cause the
whole specification to be drawn up according to a wrong scheme,
8 AEROPLANE PATENTS
which cannot be satisfactorily put right by amendment after the
specification has once reached the Patent Office.
It cannot be too much emphasised that, in order to obtain the
utmost protection for an important invention, it is necessary that
the patent agent should combine with a knowledge of patent law
and procedure, not only a mind's-eye view of the physical aspect of
the invention, but an appreciation of the characteristic idea which
is its distinguishing feature.
Opposition to Patent. After a complete specification has
been accepted, i.e., passed as in order by the Patent Office
examiner, it is published, and any interested party can oppose
the grant of a patent. Some firms directly, or through their
patent agents, watch for applications for patents which, if granted,
would adversely affect them. It involves much less expense to
oppose the grant of a patent than to afterwards bring an action
to have it revoked. The question of opposition cannot be dis-
cussed at length here, and it must suffice to say that two months
are allowed from the advertisement of acceptance of a complete
specification in the Official Journal in which to lodge opposition.
Duration of Patent. The normal term of a British patent
is fourteen years, but, in order to keep the patent in force for
this period, it is necessary to pay renewal fees commencing at the
end of the fourth year of the term. The applicant for a patent
does not incur any liability to pay these fees, but, if they are not
paid, the patent lapses. The term of the patent is reckoned from
the date of application in Great Britain except that, when an earlier
date is claimed in virtue of an earlier application in another
convention country,* the term is reckoned from this earlier date.
An extension of the term of a patent beyond fourteen years can
sometimes be obtained, if it can be proved that the patentee has
been inadequately remunerated, taking into account the nature
and merits of the invention. It is not worth while incurring the
expense of an application for extension of term unless a very good
case can be put forward, and it may here be mentioned that the
Court may be greatly concerned with the remuneration of the
original patentee and show little or no concern with the remunera-
tion of any individual or company who may have acquired or be
working the patent.
* The term " convention country " is explained on p. 9.
ADVICE TO INVENTOKS 9
Colonial and Foreign Patents : International Conven-
tion. Patents for inventions can be obtained in most civilised
countries ; and in certain countries where patents are not granted
protection can be obtained of a nature which is nearly equivalent
to that given by a patent. It would be impossible in this volume
to give even a summary of the laws in the various British posses-
sions and foreign countries ; but a few remarks may be made
about applying for patents abroad. A large number of the more
important foreign states, together with Great Britain and certain
British Colonies, are signatories to an International Convention,
and, by one of the clauses of the Convention, a British inventor
can file applications for patents in the other convention countries
any time within twelve months from the date of his application
in Great Britain, and can secure for these applications the benefit
of the British date. An inventor has, therefore, ten or eleven
months from the date of filing his application in Great Britain in
which to ascertain how his invention is likely to turn out in
service, and in which to obtain if necessary financial assistance or
to assign his rights, or grant, or arrange to grant, licences.
Moreover, a person who has filed an application for a patent
for any invention in a convention country other than Great
Britain, prior to his British application, can obtain for his British
patent the date of his application in this other country. Speak-
ing generally, the date of the first application in any convention
country can be obtained for all subsequent applications for the
same invention in other convention countries up to the twelve-
month limit.
It is not of course every invention which it is worth while to
patent abroad, even if the inventor has money to devote to this
purpose ; but in many cases it is advisable to apply for patents in
a greater or less number of colonial or foreign countries ; and it
is not always wise to delay till near the end of the twelve months
allowed by the International Convention. In Germany especially
it is advisable to file an application as soon as it is decided to
apply for a patent in that country ; and in the case of the United
States of America the pros and cons of early and late application
should be discussed for every invention.
German Gebrauchsmuster. In a case where a patent can-
not be obtained in Germany for a modification in design which,
although important and useful, would not be considered by the
10 AEEOPLANE PATENTS
German Patent Office as suitable subject-matter for a patent,
protection can be obtained by means of a " Gebrauchsmuster."
A Gebrauchsmuster, moreover, costs less than a patent. A new
section of frame member, or a new design for connecting
longitudinal with cross members, might be covered by a
Gebrauchsmuster, where a patent would almost certainly be
refused. In some cases it is advisable to lodge applications at
the same time both for a patent and a Gebrauchsmuster and only
rely on the latter if the former is refused.
Delaying Acceptance or Sealing of British Patent.
In the case of certain British possessions and certain foreign
countries the period during which an application for a patent can
be filed terminates a certain time after the date of sealing of the
British patent for the same invention ; and in the case of other
countries the publication of the British specification prior to the
application for a patent in these countries is a bar to the grant of
a patent. It is, therefore, in many cases advisable to delay the
publication of the British specification or the sealing of the
British patent. Publication, in the normal course of events,
follows immediately after the complete specification is passed by
the examiner as satisfactory ; and the patent is sealed, if
unopposed, after the opposition period has elapsed and the sealing
fee has been paid. Publication and sealing may, however, be
delayed if desired by the applicant; and it is frequently
expedient to effect delay. Each case must be considered
independently.
Patents for Supplementary Inventions. When an
invention is supplementary to that for which a previous patent
has been applied for or granted if it is, for example, an improve-
ment in, or modification of, the device or apparatus forming the
subject-matter of the prior patent the applicant may apply for a
" patent of addition " instead of for an ordinary patent. The
advantage of a patent of addition lies in the fact that no renewal
fees have to be paid to keep it in force except those that are
required to keep the primary patent in force. That is, the one
set of renewal fees serves both for the primary patent and the
patent of addition. The disadvantage of a patent of addition is
that it terminates with the primary patent instead of running
fourteen years. It rests with the Patent Office examiner to decide
what constitutes good subject-matter for a patent of addition ;
ADVICE TO INVENTORS 11
and the examiner's views in this respect may differ from the
applicant's.
If the examiner decides that the invention is not what he con-
siders good subject-matter for a patent of addition, and if this
constitutes his only objection, he will allow the application to be
amended, and an ordinary patent to be applied for, without loss
of date or of stamp fees.
There is no limit to the number of patents of addition which
can be dependent on the one primary or principal patent ; but a
patent of addition cannot be dependent on another patent of
addition.
Exploiting an Invention. When an inventor is not in a
position to directly make money from his invention by putting it
into practice himself, it is of course necessary to come to an
arrangement with a manufacturer. It is usually of advantage for
the inventor to approach the manufacturer directly if this is
possible ; but sometimes another party can better secure an inter-
view with the manufacturer or is in a position to negotiate better
terms. In this connection it may be well to advise the inventor
not to pay fees, except on the basis of commission, to any
individual or firm who offers to arrange terms with manufacturers
but whom he knows only through advertisement or circular. In
that case, if no real service is rendered, no expense is incurred.
In putting an invention before a party whom it is hoped will
take it up, it is desirable to have an example or model, if this will
help the explanation ; and the article exhibited should be as
nearly as possible the exact likeness of what will be adopted in
practice. A bad model lowers the apparent value of the inven-
tion in spite of explanation as to how it can be improved.
It is important to show the manufacturer what he will gain by
taking up the invention. It is not sufficient for the inventor to
show that his invention is on more scientific lines than what it is
intended to replace, or even to show that it will be better for the
user. The manufacturer naturally does not want to go to expense
unless he can recover his outlay and, moreover, he wants some
substantial gain to compensate him for the risk and trouble
which he subjects himself to.
Assignment of Patents. A patentee's rights can be
assigned or transferred to any party, who then in reality becomes
the patentee, except that the assignee's rights may be limited to
12 AEROPLANE PATENTS
a portion or district of the United Kingdom. A patentee may
assign his patent to several independent parties, in each case the
assignment being applicable to a different portion of the kingdom.
Assignment is performed by deed which is usually drawn up by a
solicitor. There are many points to be watched in drawing up
the deed of assignment which, however, cannot be discussed in
this volume ; the patent agent should as a rule be consulted.
Licences. A patentee may grant a licence to use, vend or
manufacture his invention ; and the said licence may be unlimited
geographically, or may be limited to a particular portion of the
United Kingdom. Moreover, it may give the licensee the
exclusive right to manufacture, use or sell the invention in
the United Kingdom or in a district; or other manufacturers
may also be licensed for the same territory. A licence is usually
granted in consideration of a royalty, and other conditions are
attached; an agreement is therefore involved, and this agreement
conferring the licence should be in writing and be stamped. A
licence, or more properly an agreement for a licence, may be
made for a prospective patent for an invention for which only
provisional protection has as yet been obtained.
Royalties- It is common practice for a manufacturer, who
holds a licence, to pay the patentee a certain sum of money for
each article made according to the invention, or to pay a certain
percentage of the list price of each article sold, or a certain
percentage of the actual receipts obtained from the sale of the
articles. Sometimes a clause in the licence agreement provides
that the annual total of royalties shall not be less than a certain
amount. Such a clause is necessary in the interests of the
licensor if the licence is exclusive and if it cannot be determined
at will by the licensor, as otherwise the licensee might pursue a
dog-in-the-manger policy which in many cases it would be in his
interest to pursue.
Working of Patented Inventions. It is not intended by
the Patent Law that a person shall take advantage of his patent
to prevent the public from benefiting by his invention. He is
expected to work his invention, or allow it to be worked by
others, if the public will benefit thereby ; and moreover it is
expected that the invention be worked in the United Kingdom.
The subject will be explained by examples.
ADVICE TO INVENTOKS 18
Suppose that a manufacturer has a slow-rotation (relatively
speaking) engine which is very suitable for the direct drive of
aerial propellers, and is in fact so advantageous for this purpose
that the manufacturer has practically a monopoly of the supply of
engines for direct driving, hut that he has to compete with high
speed engines and geared propellers supplied by other makers
which obtain a considerable sale. This manufacturer invents,
let us suppose, an improved system of gearing which is of no use
with his engine but would be of great use to his opponents ; and
he applies for and obtains a patent for this gearing. He would
like, no doubt, to prevent this invention being employed, but he
has not a right to refuse to work it and also refuse to grant
licences to others to work it. If he does so refuse, one of his
opponents may apply for, and obtain, a compulsory licence on
terms fixed by the Court, or the patent may even be revoked by
order of the Court.
Suppose now that the same manufacturer invents some improved
detail in connection with his own engine, and that this detail
requires special and expensive plant for its economical manu-
facture. The manufacturer may wish to make this detail in one
factory only, and it may be preferable for him to have this factory
in, say, France, and supply the British market by importation.
Unless, however, he manufactures in Great Britain within four
years from the date of his patent he is liable, if he is manufacturing
abroad, to have his British patent revoked. It does not follow
that revocation will in every case follow working abroad with
non-working in Great Britain ; but the question cannot be
discussed at length in this volume, and the warning given above
must suffice.
SECTION II
REVIEW OF BRITISH PATENTS
EVERY British patent relating to heavier-than-air flying
machines is not reviewed in this section. In the official abridg-
ments prepared at and published by the Patent Office an
abridgment is given of the specification of every British Patent
granted at least since 1855. Ten volumes of these abridgments
are devoted to aeronautics. To read through these volumes is,
however, tedious ; and, unless each abridgment is carefully read,
something of interest may be missed.
The official abridgments are, in general, very carefully prepared
and, as regards recently published volumes, fulfil their purpose
very well ; but the official abridger is always handicapped in so
far that he must be absolutely impartial ; and therefore the space
which he devotes to a particular specification may be out of
all relationship to its . interest or value. Moreover, he must
not express his opinion as to the bearing of one patent on
another.
The author's object has been to pick out only those patents
which are of outstanding interest or which disclose some
construction which, from its nature or its date ^of disclosure, is of
particular interest. Probably there have been errors of omission.
Moreover, the author's object has been to pick out the important
point or points in every specification reviewed, and to make these
as clear as possible without regard to the language of the specifi-
cation which is often laborious.
In cases where much the same device has been described in
several successive specifications of different inventors, the first, or
one prior to 1896, has been selected, with the idea of giving light
to the manufacturer on the question of infringement of a later
patent now in force.
Patents for flying machines which do not appear to be of a
practical design, or of a design which is at present in use or is
likely to be adopted in the future, but which contain some
proposal of interest, have, as a rule, been reviewed without an
EEVIEW OF BRITISH PATENTS 15
illustration ; but it does not follow that the absence of an illus-
tration necessarily puts the patent into this category.
In many cases the mechanism described and illustrated is not
of a nature which could be recommended for adoption in actual
service ; but the idea is suggestive, or the disclosure of a nature
to affect the obtaining of patents for contrivances having similar
objects in view.
The patentee's claims are usually not given. The claims in a
modern aeroplane patent should be studied with the assistance of
a patent agent. The claims in many cases appear to give the
patentee much broader protection than he is entitled to.
The date in the reviews given below which immediately follows
the number of each patent is the date of application. When,
previous to this date, a patent for the same invention has been
applied for by the same inventor or with his consent in one or
more other countries signatory to the International Convention,
the date of the first application in a convention country is given
in parenthesis. The term of the British patent counts from this
date. See Section I., p. 8.
5251 of Nov. 3, 1882. P. Jensen (G. Koch).
This patent relates to a dirigible balloon, and in the specification
it is stated that air, instead of water, may be employed as the
cooling agent for a gas engine employed to propel the vessel,
and that a pipe may be provided to convey the air from the
front of the machine to the cylinders and thence to the rear of the
machine. The pipe may be in the shape of an Archimedean screw
worked by the engine in order to assist the cooling effect.
4245 of Sept. 3, 1883. J. H. Johnson (E. J. Delaurier).
It is proposed by the inventor to employ the reaction of a
steam jet to propel an aerial machine, and he suggests pivoting the
discharge nozzle so as to allow for altering the angle of the jet.
13768 of Oct. 17, 1884, and 13311 of Aug. 6, 1891.
H. F. Phillips.
In the specifications of these two patents the idea of employ-
ing multi-planes with camber is set forth. The inventor had
apparently some idea of the best form and arrangement of planes
to give maximum supporting effort. He advocates a series of
planes arranged at a suitable distance apart so that the air may
act independently on each without disturbance by the others.
16 AEEOPLANE PATENTS
The planes are to be long relatively to their width and are
to be moved through the air in the direction of their width
or shorter dimension. The upper surface of each plane is to
be convex. The general design and arrangement of the planes
is, therefore, that adopted in present-day multi-plane flying
machines. Figs. 1 and 2 are fore-and-aft vertical sections of
two of the designs of plane proposed. Phillips' ideas as to the
advantage of camber were either not quite correct or else not
Fig. 1. Phillips' Planes.
Fig. 2. Phillips' Planes.
correctly expressed, but a careful perusal of the specifications tends
to bring one to the conclusion that his ideas were in the main sound.
10068 of Aiig. 25, 1885. T. Griffiths.
It is proposed to propel a balloon by the reaction of steam and
furnace gases ejected together through nozzles.
10359 of June 25, 1889. Hiram S. Maxim.
This patent covers the construction of a steam generator and
steam engine intended for use on flying machines. Both engine
and generator are very skilfully and ingeniously designed in
order to secure extreme lightness. As it appears unlikely
that steam engines will again be employed for aerial propul-
sion, and as a short abridgment of the specification would not
do justice to the invention with its many important details, no
description will be here given. Those interested had better
obtain the complete specification.
16883 of Oct. 25, 1889. Hiram S. Maxim.
When application was made for this patent Sir Hiram Maxim
was working hard with the object of evolving, what had not
up to that date been obtained, a practical heavier-than-air
flying machine. The specification includes a description of a
REVIEW OF BRITISH PATENTS
17
device intended for keeping constant the altitude at which the
flying machine travels.
In Fig. 3, A is a hollow lever which is oscillated in order to
drive, for example, the fuel pump of the motor. B is a ratchet
wheel which is fixed on a spindle C, and which is engaged by one
or other of the pawls D, E, carried by the lever F, which is
fulcrummed at G. The continuous oscillation of the lever A,
which occurs when the motor is running, causes the ratchet
wheel B to be intermittently rotated in one or the other direction,
according as the pawl D or the pawl E engages with the teeth of
Fig. 3. Maxim's Altitude Control.
the wheel ; and mechanism is provided whereby the length of
stroke of the fuel pump is lengthened or shortened by the
rotation of the wheel B in one or the other direction respectively.
The lever F is connected by means of the link H with the centre
of the circular corrugated top of the closed box J, of which the
centre of the opposite and similar end is anchored to a fixed part
of the machine. As the flying machine rises or falls in the air,
the change in the atmospheric pressure on the outside of the box
will produce a movement in the link H, and by this means one
or other or neither of the pawls D, E is put into engagement
with the teeth of the wheel B, so regulating the stroke of the
fuel pump. The speed of the machine is thus affected and, as
the rising effort is proportional to the speed, the altitude of the
A.P. C
18
AEKOPLANE PATENTS
machine is thus kept constant. Positive regulation can be
effected by means of the thumb nut K which controls the tension
of the spring L. Although this device has probably never been
employed, it may be of interest as affecting Letters Patents of
later date relating to automatic means for controlling the altitude
of aeroplanes.
Another device described in the same specification has
reference to the auxiliary planes N, N, Fig. 4, which are attached
to the sides (that is, the tips) of the main plane and which can be
adjusted by hand. Moreover, by means of the cords 0, 0, these
planes are rapidly and automatically pulled down whenever the
Fig. 4. Maxim's Wing Tip.
wheels of the machine touch the ground on alighting, thereby
diminishing the shock of landing.
Fig. 5 shows the construction of the blades of the propeller.
Each blade consists of spokes S, S, covered with suitable fabric
JT which does not extend to the propeller boss and inserted in
sockets T which are passed through a tubular boss E, provided
with flange P. It is proposed to stiffen the blades by means of
stay ropes or the like.
12349 of Aug. 7, 1890. T. Griffiths and
H. W. Beddoes.
The inventors propose to propel an aerial machine by the
reaction produced by the discharge of the products of combustion
of an explosive mixture (e.g., a combustible gas and air) com-
pressed by a pump before ignition.
KEVIEW OF BKITISH PATENTS 19
Fig. 5. Maxim's Propeller.
2557 of Feb. 6, 1893. H. T. Barnett and
30932 of Dec. 31, 1897. W. T. Carter.
Both inventors propose to arrange two propellers co-axially and
adjacent to each other, one behind the other, the forward pro-
peller being mounted on a hollow shaft through the interior
of which passes the shaft of the aft propeller. The two
shafts are rotated in opposite directions by direct connection
to the two elements of a rotary motor of which both parts rotate.
c2
20
AEKOPLANE PATENTS.
Fig. 6.
25050 of Dec. 31, 1895. E. J. Pennington.
Figs. 6 and 7 show the means proposed for actuating the
vertical and horizontal rudders employed to steer an aerial
vessel. A, Fig. 6, is the shaft of the vertical rudder, and B,
Fig. 7, is the beaded end of the horizontal rudder. Each
rudder is deflected by means of a toothed segment and worm,
the latter being actuated by
an electromotor C energised
by current from storage bat-
teries. The motor for the
vertical rudder is controlled
by a compass needle which,
by means of electric contacts,
causes the motor to rotate in
one or other direction so as
to keep the vessel on a steady
course. The motor of the
vertical rudder is similarly
controlled by means of the
index finger of a barometer
so as to maintain the vessel
at a pre-determined altitude.
3608 of Feb. 10, 1897.-
F. W. Lanchester.
Figs. 8 and 9 show in eleva-
tion and plan respectively a
flying machine described in
the specification of this
patent. A is the main sup-
porting surface which may
either be shaped at the tips
as shown at B, or may have
a " capping plane" C. Verti-
cal fins D, D, E, E, are pro-
vided for stabilisation pur-
poses ; and the fins E, E may
be used as rudders for
steering the machine in a
Figs. 6 and 7. Pennington' s Automatic
Eudder Control.
REVIEW OF BEITISH PATENTS
21
horizontal plane. F, F are the screw propellers which act also as
flywheels, and are formed, each as shown in Fig. 10, with a rim
Figs. 8 and 9. Lanchester's Flying Machine.
22
AEKOPLANE PATENTS
G stayed to a boss H, and with the blades J, J formed of fabric
or wood. In Fig. 11 are given sections of the main supporting
surface by planes at varying distances from the centre line of the
machine ; and it will be seen that the camber decreases towards
the wing tips. The tail
plane K, Fig. 8, may be
swivelled by the cords L
for vertical steering.
The inventor further
states (and this is impor-
tant as bearing on the
Wright wing-warping
patent, see p. 27 ) that
alteration in the
an
Fig. 10. Lanchester's Propeller.
angle of the two wings
relatively to one another
or parts of them will by
giving a list sideways to
the machine affect an
alteration in its course."
No means are, however, described for performing this action.
10620 of April 28, 1897. H. S. Maxim.
The machine described in the specification of this patent is of
a type which has not come into use, and therefore need not be
illustrated. No patent of Sir
Hiram Maxim's is, however,
without interest.
In the present case the in-
ventor describes a pendulum
stability device according to
which the tilting of the machine
controls the power of the engines
which drive the screw propel-
lers so that the machine is auto-
matically righted. Lifting and
Pig. 11. Lanchester's Section
of Wing.
driving screws are described in which the forward edge of each
blade is rigid while the rear edge is flexible, and controlled by
a spring which can yield if the propeller is subjected to undue
stress. It is stated that the tension of the springs controlling
the flexible edges of the blades may be increased or diminished
REVIEW OF BRITISH PATENTS
23
at the will of the aviator, " so that if, for instance, one side of
the machine have a tendency to lift before the other, it will then be
possible to increase the tension of the springs on one side and so
bring the machine to an even keel." The adjustment of the
angle of incidence of the blades which constitute supporting
planes for purposes of stability is important on account of
its bearing on the Wright wing-warping patent (p. 27), although
the machine described in this specification of Sir Hiram's is
very different from the Wright machine.
13372 of May 31, 1897.-0. Chanute.
The machine described in the specification of this patent is a
glider, and has no motive power. The patent is nevertheless of
Fig. 12. Chanute'e Glider. Side Elevation.
great interest on account of its early date. The glider is shown
in side elevation in Fig. 12, and in front elevation in Fig. 13. It
has two wings each built up of four superposed cambered
planes an auxiliary supporting surface N, and a tail. The
superposed planes forming each wing are rigidly connected
together by rods H, but each wing can swivel about the vertical
shaft K which supports it in such a manner that the angle of
incidence of all its planes is increased or diminished. The
aviator sits on the seat S with his feet on pedals on the ends of
the levers T. Cords attached to these levers are connected to
the wings, so that the aviator can at will swivel either or both
24
AEEOPLANE PATENTS
wings and alter the 'angle of incidence, and thus steer the
machine in a vertical or horizontal direction.
The vertical tail surface B, may be hand-actuated and used as
a horizontal rudder ; but the inventor states that in practice it is
found more useful as a tail, as the steering can be more easily
accomplished by pedal action on one or the other wing.
The provision of means whereby the angle of incidence of the
one wing can be altered relatively to the other is important on
Fig. 13. Chanute's Glider. Plan.
account of its bearing on the Wright wing-warping patent
(P. 27).
15221 of June 25, 1897. T. Moy (0. Chanute and
A, M. Herring).
The flying machine described in the specification of this
patent is shown in perspective in Fig. 14. There are two or
more supporting surfaces (three in the machine illustrated), and
two screw-propellers. One of the propellers A is at the front of
the machine, and is seen in full in the figure ; the other B is at
the rear, and is only partly visible. The propellers are driven by
independent engines C, C, and rotate in opposite directions.
A tail provided with vertical and horizontal surfaces D, E, and
with a runner F, is connected to the body of the machine by
means of a rod H and universal joint K, and can be deflected in
both a vertical and a horizontal plane by wind pressure or at the
EEVIEW OF BRITISH PATENTS
25
Fig. 14. Chanute and Herring's Flying Machine.
will of the aviator. Figs. 15, 16 and 17 are sections of proposed
forms of planes, and Fig. 18 a cross-section of the framework struts.
27212 of Dec. 11, 1903. L. Brennan.
25395 of Dec. 6, 1905, and 15796 of July 9, 1907.
F. R, Simms.
In the specifications of these patents are described devices for
maintaining the stability of flying machines by means of
gyroscopes. Brennan's device is not described with special
reference to flying machines, but, as there is no apparent reason
why it could not be applied to such machines, and as the device
26
AEROPLANE PATENTS
is that of a man who has carefully considered the problem of
gyroscopic stabilisation, it is of considerable importance to
aviators. Brennan proposes to employ two equal gyroscopes
mounted on parallel axes and geared so as to rotate with equal
and opposite angular velocities. The employment of twin
oppositely-rotating gyroscopes allows of the machine being turned,
say, in a horizontal plane
while automatically correct-
ing any tendency to tilt in a
vertical plane at right angles
to the line of motion. Means
are provided whereby the
precession of the gyroscopes
caused by the tilting of the
machine can be accelerated
by hand, or is automatically
accelerated by a pendulum,
so as to restore the balance
of the machine.
Simms' devices are de-
scribed with special reference
to airships and involve the
employment of a gyroscope
consisting of one, or of two, discs mounted on vertical axes. In
the earlier specification it is proposed to change by hand the
plane of rotation of the gyroscope ; and in the later speci-
fication the inventor proposes to automatically increase the
speed of rotation of the gyroscope should any tilting of the
machine take place, acceleration in speed
being brought about by means of a pen-
dulum acting on the throttle valve of the
engine which drives the gyroscope.
4901 of Feb. 27, 1904.
Fig. 18.-Chanute and ft Adams.
Herring's Section of
Strut. The propeller shaft is driven through a
Hooke's coupling and bevel pinions. The
propeller is turned in the required direction for rising, falling or
steering, by means of ropes or otherwise. The propeller blades
are of sheet metal stiffened and stayed. The propeller thrust is
taken by a ball bearing.
Figs. 15, 16 and 17. Chamite and
Herring's Sections of Planes.
EEVIEW OF BEITISH PATENTS 27
6732 of March 19, 1904. 0. and W. Wright.
This is the famous wing-warping patent. The application for
patent was filed in Great Britain, on March 19, 1904, but the
date claimed for the British patent, under the terms of the
International Convention, is that of the date of filing of the
application for the corresponding patent in the United States of
America. This date is March 23, 1903, although and it is
interesting to note this fact the patent was not granted in
America till May 22, 1906.
Keferring to the British patent the objects of the invention are
said to be " first, to provide a structure combining lightness,
strength, convenience of construction, and the least possible edge
resistance ; second, to provide means for maintaining or restoring
the equilibrium of the apparatus ; and third, to provide efficient
means of guiding the machine in both vertical and horizontal
directions." Three figures are given which are here reproduced,
Fig. 19 is a perspective view of the machine, Fig. 20 is a side
elevation, and Fig. 21 is a plan.
The supporting planes A, B are so constructed and connected
together by the standards C that they can yield to a twisting
action, both planes working together. Keferring to Fig. 19 in
which the machine is viewed from the front, and referring par-
ticularly to the ends of the planes seen to the left in this figure,
it will be obvious that, if a tension is put on the rope D while at
the same time the rope E is slackened, the forward corner of
the lower plane, and the aft corner of the upper plane, will be
drawn together. The angles of incidence of both planes will
therefore be increased at this end. The twisting or warping
action is performed by means of a movement to the right or left
given to the cradle H to which are attached the wing-warping
ropes ; and these ropes are so arranged that, when the planes
have their angles increased at one end, the angles at the other
end are reduced. Each plane is twisted into the form of a two-
bladed propeller. Moreover, the rudder K is so connected with
the wing-warping ropes that it is always deflected to the side at
which the angle of incidence is least.
When the machine in flight tilts so as to, say, rise at the right
and fall at the left, the aviator moves the cradle so as to reduce
the angle of incidence at the right and increase this angle at the
left. This action will tend to right the machine, but, as the
resistance to motion will be greatest where the angle of incidence
28
AEEOPLANE PATENTS
is greatest, the machine will tend to rotate about a vertical axis.
Such a rotation is, however, prevented by the rudder which, by the
same movement of the cradle, is deflected to the right and keeps
the machine square to the line of motion.
Pig. 19.
Fig. 20.
K
Figs. 19, 20 and 21. Wright Flying Machine, with Wing- Warping and
Eudder Action.
KEVIEW OF BKITISH PATENTS 29
The inventors state that, although at the date of applying for
the patent, they prefer to use ropes for twisting the planes, they
do not restrict themselves to any particular method of imparting
this twist to a structure formed in the manner specified in their
specification. They state, moreover : " We do not confine our-
selves to the particular construction and attachment of the rear
rudder hereinbefore described, nor to this particular construction
of surfaces or wings, but may employ this combination in the use
of any movable vertical rear rudder operated in conjunction with
any wings capable of being presented to the wind at respectively
differing angles at their opposite tips for the purpose of restoring
the lateral balance of a flying machine and guiding the machine
to right or left."
Fourteen claims are made of which the most important, in the
author's opinion, are the 3rd, 6th and 7th which are as follows :
3. In a flying machine, the combination of one or more supporting
surfaces or wings with a device for imparting a twist to the said surfaces
or wings for the purpose stated.
6. In a flying machine, the combination of wings having their right and
left tips capable of being adjusted so as to be presented to the wind at
respectively differing angles, with a vertical adjustable rear rudder operating
in conjunction therewith in the manner and for the purpose specified.
7. In a flying machine having wings capable of being twisted by actuat-
ing ropes, the combination therewith of a movable vertical rear rudder
having tiller cords attached to said actuating ropes, substantially as
described.
The corresponding U.S. patent contains eighteen claims aggre-
gating about 1800 words
not an unusually great ver-
bage for an American patent.
The drawings are somewhat
clearer than the British, and
contain two additional figures
which illustrate the pivotal
connection of the planes with
,, , , , . , Fig. 22. Hansen-Ellehammer s
the standards which connect Stabilisation Device,
them together.
7377 of March 27, 1906. J. C. Hansen-Ellehammer.
Keferring to Fig. 22, A is the supporting surface of a flying
machine to which is pivoted at B a rod C supporting a pendulum
weight D. The rod C is connected, by means of a link E, with
30
AEROPLANE PATENTS
R
Fig. 23. Harper's Engine, with Eotating Cylinders.
the lever G, which operates the horizontal rudder H, which is
pivoted at J, to the bracket K. The length of the link E, or its
point of connection to the rod C, may
be adjusted.
16626 of July 23, 1906.
W. Harper.
The internal combustion engine cylin-
ders A 1 , A 2 , A 3 , A 4 , Fig. 23, are rigidly
connected to the crank case and (by
struts S) to a ring R, the whole struc-
ture being adapted to rotate and to act
as a flywheel. Moreover, the blades
V, V, stretching from the ring E to the
crank case, act as propeller blades, the
Fig. 24. Valve Gear of necessity of providing a separate pro-
Harper's Engine. peller being thus obviated. The pistons
REVIEW OF BRITISH PATENTS
31
of the engines A 1 and A 4 drive on to one crank pin, and those of
the engines A 2 and A 3 on to another crank pin, at 180 degrees
from the first. Fig. 24 shows the exhaust valve mechanism. J
is a stationary pinion which gears with four planet pinions which
carry cams H 1 , H 2 , H 3 , H*, which respectively actuate the
exhaust valves of the four cylinders.
Lubricating oil is contained in a chamber formed in one with
the crank case and is fed to the cylinder by centrifugal force.
26099 of Nov. 19, 1906.-A. V. Roe.
The inventor proposes to steer a flying machine in a horizontal
plane without the employment of a vertical rudder by the deflec-
Fig. 25. Roe's Steering Device.
tion of an auxiliary plane situated in front of the main supporting
surfaces. Fig. 25 is a plan of the machine. G is the upper
32 AEROPLANE PATENTS
main plane, and there is a lower main plane parallel to it. H is
the auxiliary plane, and M is the screw propeller at the rear of the
machine. N is the aviator's seat, and D the wheel by which he
steers the machine, by acting on the plane II by means of the
cords A, B.
Fig. 26 shows the plane H in side elevation with the means for
supporting and deflecting it. It is pivoted at C, C to the frame
bars J (see both figures), which also carry brackets F, F in
which the aft end of the plane is guided. The steering wheel
spindle is pivoted at E, so that, if the wheel is pressed bodily
down, the ropes B are tensioned while the ropes A are slackened,
and the aft end of the plane H is raised, thus causing the path of
the machine to deflect downwards. Raising the steering wheel
produces an opposite effect, while turning the wheel in one or the
Fig. '26. Eoe's Steering Device.
other direction twists the plane, depressing the aft end at the one
side and raising the aft end at the other, and so deflecting the
path of the machine in a horizontal plane. The movements given
to the steering wheel are in the same direction as the movements
desired to be given to the machine, thus reducing to a minimum
the chance of the aviator giving the wrong movement.
29308 of Dec. 22, 1906. W. E. Murray.
It is proposed to drive an aerial machine by means of propellers,
which, as shown in Fig. 27, are driven by the engine through
the agency of bevel pinions and the shafts P, P 1 . The latter rotate
within tubes Q. Q 1 , which carry at their ends bracket bearings
V, V 1 for the propeller shafts. These tubes Q, Q 1 can be rotated
by means of worms which are actuated by the hand wheel Z, and
which engage with the worm wheels W,W* attached to the tubes
QjQ 1 , so that the planes of rotation of the propellers can be altered
at will.
REVIEW OF BRITISH PATENTS
33
1960 of Jan. 25, 1907. G. L. 0. Davidson.
In the specification of this patent is described mechanism for
automatically affecting stabilisation by means of a moving weight.
A.P. D
34
AEKOPLANE PATENTS
The tail of the machine is actuated by engines controlled by the
moving weight, but the disposition of the latter and its mode of
acting on the engines are not described. The only item of
Fig. 28. Davidson's Fish-Tail.
interest in the specification, in the author's opinion, is the pro-
posal to make the tail somewhat like that of a fish or as shown
diagrammatically in Fig. 28, the arrow indicating the direction of
Fig. 29. Davidson's Mechanism for Actuating Tail.
motion of the machine. The fins or wings A, A are movable
about the lines B, B as axes, and one can be tilted up, while the
other is tilted down, for stabilisation purposes. The mechanism
proposed for effecting this tilting action is shown in Fig. 29.
REVIEW OF BRITISH PATENTS
35
9413 and 9413A of April 23, 1907.-F. W. Lanchester.
Fig. 30 shows the flying machine in side elevation, partly in
section. The supporting surface A is a structural part of the
Fig. 30. Lanchester's Flying Machine.
frame of the machine which in the main consists of a triangular
lattice girder of which a detail is shown in Fig. 81. B is the
Fig. 31. Lanchester's Aeroplane Girder.
D2
36
AEEOPLANE PATENTS
engine, and P 1 , P 2 the propellers. The propellers are of opposite
hand, and, as shown in Fig. 32, are fixed respectively on shafts P 3
and P 4 which are keyed to, or form part of, the planet elements M 1
i
.SP
KEVIEW OF BKITISH PATENTS 37
and M 2 of the two trains of epicyclic gear contained within the
casing L 1 , L 2 , which is bolted on to the extremity of the crank
chamber O. One of the " sun " elements M 3 is coupled direct to
the motor shaft, and the other "sun" M 4 is mounted revolvubly
in bearings M 5 and M 6 , and carries a brake drum M 7 acted on by a
brake, shown as a band brake M 8 . The ring element of the two
trains of gear M 9 is common to both and is mounted in bearings
in the casing M 10 , M 11 , and is quite unrestrained as regards
rotation except by its engagement with the planet pinions of the
two trains.
When the " sun " element M 4 is free to rotate, there is no
driving effort exerted on either propeller, and the planet elements
can both stand still while both " suns " rotate in one direction,
and the common ring element rotates in the opposite direction.
When the " sun " M 4 is brought to rest by means of the brake
M 7 , M 8 , the planet elements are constrained to revolve ; but the
relative rate of rotation depends on the relative retarding
torque.
17366 of July 29, 1907. J. A. Colquhoun.
According to this invention, when the machine becomes tilted,
a pendulum, owing to its inertia, makes contact with one or two of
four insulated plates which are electrically connected respectively
to the driving mechanisms of four propellers, e so that the tilting
of the machine causes less power to be transmitted to one or two
of the propellers. The propellers rotate about verbal axes and
are so disposed that the reduction in speed of rotation of any one
propeller, or any two adjacent propellers, will tend to right the
machine.
26000 of Nov. 23, 1907. F. Hennebique.
The boss B of the tractor screw A, Fig. 33, is connected to the
driving shaft E by means of a universal joint which maybe of the
type which is drawn to a larger scale in Fig. 34. The balls C, C,
which transfer the torque from the shaft to the boss, are located
in spheroidal recesses cut half in the spherical end of the shaft
arid half in the enclosing surface of the boss. The weight D,
suspended from the boss, serves to maintain the propeller in a
vertical plane in spite of fore-and-aft tilting of the flying
machine.
38
AEEOPLANE PATENTS
27408 of Dec. 11, 1907. J. Straka.
The drawing here given, Fig. 35, is not a reproduction of that
shown in the patent specification, but is a diagrammatic represen-
tation of the proposed propeller drive. The propellers are
arranged at the rear of the airship.
The shaft A has a bearing in the
bracket B, which is rigid with the
frame of the machine. This shaft
carries a bevel pinion C, which gears
with the pinion D, which rides loose
Fig. 33. Hennebique's
Stabilisation Device.
Fig. 34. Hennebique's
Propeller Drive.
Fig. 35.--Straka's Tandem Propeller
Drive.
REVIEW OF BRITISH PATENTS 39
on the spindle E, and gears with the pinion H, which is keyed
on the propeller shaft.
The latter carries both propellers M, N, which rotate in the
same direction, the aft propeller N having the greater pitch. The
propeller shaft has a bearing in the bracket K, which can pivot
about the spindle E, so that the angle of the propeller shaft can
be altered in a horizontal plane to steer the machine.
28034 of Dec. 19, 1907. (Dec. 19, 1906.) R. Esnault-
Pelterie.
In this specification is described the combined steering and
equilibrium mechanism illustrated diagrammatically in Fig. 36.
f
Fig. 36. Esnault-Pelterie's Steering and Equilibrium Mechanism.
There are two pairs of supporting planes of which the forward
pair is represented by c, c, and the aft pair by /,/. 22 is the
stability, and 23 the steering, handle. When 22 is raised, the
planes c, c are tilted up (i.e., up at the forward edge so as to
increase the angle of incidence) through the agency of the levers
10, the link 11, shaft 12, lever 13, and axle d ; and at the same
time the planes /, f are tilted down through the agency of the
shaft 20, bell-crank lever 19, 15, rod 16, links 17, 17, levers
18, 18, and axles e > e. The result is, therefore, to raise the machine
40
AEROPLANE PATENTS
at the head and lower it at the tail. An opposite movement
given to the handle 22 produces an opposite effect, while a move-
ment to the right or left has no effect on the forward planes, but,
as regards the rear planes, by acting on the rod 20 and thus
rotating the lever 19, 15, about the axis of 15, it gives opposite
tilts to the two rear planes and therefore tends to rotate the
machine about an axis parallel to the direction of travel.
An upward movement given to the handle 23 tilts both pairs of
^--r-.V
t --H-J I ~ "* -
YVf n '-x--- r
r H-t-lf----4--
Ta||Hptf:
r_ t -4 ^- -f i t, -^ J-
( > IE \ A
-c'
Fig. 37. Esnault-Pelterie's Flying Machine.
planes downwards, and a downward movement tilts both planes
upwards, while a right or left hand movement given to this
handle has no effect on the planes (owing to the end of the
lever 26 working in a slot in the shaft 20), but actuates the
rudder (not shown) by means of the cord 27. The handle 23
can therefore be used for steering the machine both vertically and
horizontally.
The device is ingenious, but has the defect that, whereas the
handle 22 is raised to raise the head of the machine, the handle 23
has to be lowered to raise the machine an arrangement apt to
prove confusing.
REVIEW OF BRITISH PATENTS
41
221 of Jan. 3, 1908. (Jan. 19, 1907.) R. Esnault-
Pelterie.
In this specification is described and claimed another steering
and equilibrium arrangement. In Fig. 37, which is a plan of
the flying machine, the main wings A, A' are rigidly connected
to the frame of the machine, and are adapted to be warped for
transverse stabilisation. The warping action is accomplished by
means of the stays F, F', G, G', which extend downwards from
the front and rear of the wing tips to the lower part of the
body of the machine, where they are connected to the end of a
Figs. 38 and 39. Esnault-Pelterie's Steering and Equilibrium
Mechanism.
rod D (see also Fig. 38), pivoted at E. It will be evident that,
by swivelling the rod D in a horizontal plane about the point E
in a counter-clockwise direction, tension will be put on the
stays F and G', and the one wing tip will be bent down at the
front while the other is bent down at the rear.
H, H are blades forming a horizontal rudder at the rear of
the machine ; and similar blades, of which one, J, is seen in
Fig. 37, constitute a vertical rudder. The blades are attached
to a ring as shown in Fig. 39, which ring is rigidly attached to
a stud K, which is pivoted at its free end to a support by a
universal joint.
Fig. 38 shows the mechanism by which the wings are warped
and the rudder actuated. When the aviator's lever L, pivoted at
M, is moved in the plane which contains the link N, this link,
42
AEEOPLANE PATENTS
which is pivoted at O (Figs. 38 and 39) to the rudder ring,
deflects the horizontal rudder. A movement of the lever L in
a vertical plane, at right angles to the link N, swivels the rod D
about the point E, and so warps the wings. The vertical rudder
is operated by a separate lever P, which actuates the link Q,
pivoted to the rudder ring at R. This arrangement differs from
the Wright device in this respect, that the vertical rudder is not
actuated by the same movement as is employed to warp the
wings.
1258 of Jan. 18, 1908. (Jan. 22, 1907.)-
R. Esnault-Pelterie.
In this specification is described a further steering and stabilisa-
tion arrangement. Mechanism is described and illustrated whereby
Fig. 41.
7
...... .^v
Fig. 40.
Fig. 42.
Figs. 40, 41 and 42. Esnault-Pelterie's Eudder.
wing-warping and rudder control is effected. The chief difference
between the arrangement described in this specification and that
described in 221, 1908, is that, in place of the combined vertical and
horizontal rudder described in the latter, a single horizontal rudder
with a single surface is employed. This rudder is illustrated dia-
grammatically in Figs. 40, 41 and 42, which are plan, side elevation
and end elevation respectively. (The diagrams are the author's,
not the patentee's.) A lever corresponding to L, in Fig. 38, is
employed as before to warp the wings by one motion and to deflect
EEVIEW OF BRITISH PATENTS
43
the rudder by another motion ; but in the present case the rudder
swings about the axis X Y into a position such as that shown by
dotted lines in Figs. 40 and 41. A lever corresponding to P in
Fig. 38 is also employed, and this lever tilts the rudder into a
position such as that shown by chain lines in Figs. 40 and 42.
The rudder need not be a flat surface, but may be cambered. A
tractor screw is employed for propulsion.
Fig. 43. Heeren's Stabilisation Device.
Fig. 44. Bleriot's Eudder Mechanism.
1683 of Jan. 24, 1908. 0. Heeren.
The wings b, b, Fig. 43, are hinged at c, so that, moving
together, they can occupy an inclined position such as that
44
AEROPLANE PATENTS
indicated by dotted lines. The auxiliary supporting surfaces e, e'
occupy the gap between the wings and are independently hinged
at a ; they are linked, as shown, to the collar g
which can slide on the rod h, which supports
the car or weight i. When the wings become
tilted to the position shown by dotted lines, the
surface e r is pressed down by the wing b f to the
position shown, and, by virtue of the links and
collar, it carries the surface e into a similar
position.
The inventor's idea is that by this means
there is a diminished pressure or supporting
power on the left side of the machine, which
will therefore tend to right itself, and, more-
over, that the inclination of the surface e to
the other supporting surfaces will tend to
prevent the machine sliding down to the right.
It is not, however, clear to the author that the
device will act as effectively as the inventor
believes.
) (
g
2588 of Feb. 5, 1908. (Feb. 9, 1907.)
L. Bleriot.
A Cardan controlling system C, which is
illustrated diagrammatically in Fig. 44, is em-
ployed to actuate a horizontal rudder A and a
vertical rudder B. A practical mechanism for
putting the device into practice is also described
and illustrated, but the claims are not confined
to this mechanism.
5471 of March 11, 1908.-G. Kerwat.
A stabilisation device is described in the
specification of this patent, which is of a some-
what similar nature to that described in 17366,
1907. In the present case, however, it is pro-
posed that mercury, or other suitable liquid
adapted to flow to one or other end of a horizontal tube, shall
take the place of the pendulum.
EEVIEW OF BEITISH PATENTS
45
8643 of April 18, 1908. (May 4, 1907.)-R. Esnault-
Pelterie.
A construction of transverse beam for the wings of flying
machines is described and claimed. The beam is built up of
lengths of wood A, Fig. 45, cut away as shown
for lightness, and connected to each other by
continuous metal plates P. Spaces are left
between the ends of the lengths of wood for
the cross-pieces B. It is stated that at places
" where the curvature changes " lengths C of
steel or aluminium, as shown in Figs. 45 and
46, may be substituted for the wood.
g 46. Esnault-
Pelterie's Wing
Beam.
8842 of April 23, 1908. L. P. Shadbolt.
The vertical rudder A, Fig. 47, of a flying machine consists of
canvas or other flexible material stretched between an upper
Fig. 47. Shadbolt' s Eudder.
arm B and a lower arm C, which are stayed by cords G, H. The
lower arm can be swivelled by means of a tiller D and post E
46 AEROPLANE PATENTS
(or by means of ropes), but the upper arm is not positively
controlled, but is pivoted to the fixed bracket F, through which
the post E passes freely. Consequently, when the tiller is
actuated, the lower portion of the rudder is deflected more than
the upper portion, and the rudder assumes a helical form. The
object of the arrangement is to prevent the momentary drop of
the aeroplane at the instant of changing its course in a horizontal
plane.
9069 of Feb. 5, 1908. (April 26, 1907.)-L. Bleriot.
The two rudders or half-tails A and B (Fig. 48) are pivoted
about the same horizontal spindle C, which is situated at right
angles to the line of travel of an aeroplane. The rudders, when
Fig. 48. Bleriot's Steering Mechanism.
in their central or normal positions, are in the same plane,
and either rudder can, by means of the handle D, be deflected
either up or down or be maintained stationary. A careful
study of the diagram will be necessary to appreciate the move-
ments, and explanation in addition to this will be superfluous.
10528 of May 14, 1908. (May 22, 1907.) R. Esnault-
Pelterie.
The object of this invention is to provide a system of surfaces
in an aeroplane arranged in a manner to allow of rapid and
automatic deformation, so as to compensate for wind influences
tending to disturb the stability or course of the machine. The
main supporting surface A, Fig. 49, is stayed by the two sets of
ropes, of which the set B, B 1 extends from the forward edge of the
plane to the bottom of the rod C, and prevents any movement
EEVIEW OF BKITISH PATENTS
47
of the front of the plane relatively to the body of the machine.
The remaining rope D extends from two points on the rear edge
of the plane and passes over a pulley E, so that the wings can
be automatically warped by inequalities in wind pressure.
The tail plane T, which is pivoted about the horizontal
axis M N, can rise or fall automatically, the movement being
controlled by a spring. Moreover, the tail can be automatically
o
Fig. 49. Esnault-Pelterie's Automatic Wing-Warping Arrangement.
warped by a side wind, one rear corner rising while the other
is depressed.
11905 of June 1, 1908. (June 13, 1907.) P. Skousfes.
Propulsion is proposed to be effected by the reaction
caused by the discharge of gases obtained by the explosion of
producer gas with air. The gas is made in a gas producer and is
thereafter compressed. The air is also compressed, and the
explosion takes place in a plurality of exploding chambers. It
is proposed to regulate the discharge of the combustion gases so
as to effect steering as well as propulsion.
48
AEEOPLANE PATENTS
12013 of June 3, 1908. J. L. Garsed.
The disc 4, Fig. 50, pivotally mounted in the frame of a flying
machine, is connected to the supporting or directing surfaces or
rudders, so that the steering or stability of the machine can be con-
trolled by rotation of the disc
in one or the other direction.
The connecting rod 7 is re-
ciprocated by any motive
power, and oscillates the lever
6 which is pivoted at 3 and
carries the pawls 5, 5. These
pawls are normally kept out
of action by a shield 8, which
is mounted on a lever 9,
which carries a pendulum
weight 11. On the machine
becoming tilted, one or other
of the pawls comes into action
so as to perform a righting
action. Positive control can
be effected by the handle 10,
on the lever 9, but such
positive control is limited by
the pin 13, making contact
with one or other of the pro-
jections 14, 14, which would
force the operating pawl out
of action.
15924 of July 27, 1908.
T. W. K. Clarke.
Eeferring to Fig. 51, a is
the forward supporting and
steering surface, and b is the
rearward main supporting surface of a flying machine. The
surface a is capable of being swivelled in a vertical plane about
the axis/" 1 , by means of the steering shaft/, and steering wheel/ 2 .
The surface a may also, if desired, be arranged to be swivelled
in a horizontal plane about the axis a 1 . Moreover, by rotating
the wheel/ 2 , the wheel g can be made to act on the cords g l , so as to
tilt the plane a, raising one wing tip and depressing the other.
Fig. 50. Garsed' s Stabilisation Device.
REVIEW OF BRITISH PATENTS
49
The forward edge of the rear plane abuts against the stop h.
The rearward portion of this plane is held down by means of the
bridle h 1 , which extends from the front to near the rear edge of
the plane and is provided with a resilient tie h*. k, not described,
is presumably a skid, one being provided at each side of the
Fig. 51. Clarke's Flying Machine.
plane b. The arrangement allows either wing tip to yield should
it strike the ground on the descent of the machine, c is the
frame of the machine, d is the motor, and e a propeller.
17150 of Aug. 14, 1908. J. Weiss.
In an aeroplane according to this invention the curvature of
longitudinal section of the supporting plane is greatest at the
centre and decreases towards the sides. Moreover, the rigidity
of the plane decreases from the front outwards and rearwards.
19805 of April 21, 1908 E. H. Hare.
The aeroplane A, Fig. 52, is provided with hinged corners B,
which can be operated by levers so as to steer the machine or
/c
' i\
Fig. 52. Hare's Aeroplane.
control its altitude. The main supporting surface is, moreover,
composed of slats C, the distance D between the slats being equal
A. P.
50
AEKOPLANE PATENTS
to the width of a slat. A suitable width for a slat is said to be
6 inches. The machine is propelled by a rear propeller, driven
by a motor mounted on a framework which is not shown.
20038 of Sept. 23, 1908. H. S. Maxim.
In a flying machine, of which Fig. 53 is a vertical section and
Fig. 54 a partial plan, the steering handle b is pivoted at m so that
(Fig. 53.)
D
(Fig. 54.)
nu
'J
3 1 -
if
ff
t
Figs. 53 and 54. Maxim's Flying Machine.
it can be moved either in a vertical or in a horizontal plane. When
moved vertically it actuates the forward horizontal rudder H by
means of the wires h and, when moved horizontally, it operates
the rear vertical rudder J by means of the wires j.
A shock-absorbing device comprises wheels a, levers a 1 which
are preferably flat (for spring), and rods a 2 which can be
driven into compressed air cylinders a 3 . India-rubber bulbs are
provided which cover small apertures at the tops of the cylinders,
which bulbs will burst under a pressure of about 300 pounds per
square inch and allow the air to escape, thus cushioning the
landing of the machine.
EEVIEW OF BKITISH PATENTS
51
E is the engine and D the propeller, and means are described
whereby the pitch of the propeller blades can be readily adjusted.
Fig. 55. Tribelhorn's Box Kudder.
The engine jacket water is cooled by passing it through tubes d l
provided with blades d 2 adapted to act as auxiliary supporting
surfaces.
20785 of Oct. 2, 1908. (Oct. 4, 1907.) L. Bteriot.
This invention relates to means for starting aeroplanes from a
standing position by directing a cur-
rent of air against the wings or planes
by means of the propellers. The
inventor hopes by this means to
obviate the necessity of providing
wheels and to allow of the alighting
devices being simplified. The posi-
tions in which the propellers require
to be placed do not, however, appear
to be very desirable ones.
21092 of Oct. 6, 1908.
A. Tribelhorn.
The box rudder A, Fig. 55, can be
employed for both vertical and hori-
zontal steering. The rudder is
mounted on the horizontal spindle B, Fi g- 56. Bleriot's Steering
which can be rotated by the cords
C, D. The spindle B is mounted in a crosshead carried by
the vertical spindle E, which can be rotated by the cord H, which
passes over the pulley K.
A
52
AEKOPLANE PATENTS
21497 of Feb. 5, 1908. (Oct. 15, 1907.) L. Bleriot.
In the device
j
described in the specification of Bleriot's
previous patent, 9069 of 1908, the four
arms attached to the handle D are said
to be equally spaced, that is, to be
arranged at 90 to each other. In the
present patent the device is claimed of
allowing the four arms to be adjusted
relatively to each other as, for example,
by constructing them in pairs of oppo-
site arms, /, h, and e,g (Fig. 56), and
making them rotatable about the pin x.
From a study of Fig. 48, of patent 9069
of 1908, it will be seen that, the relative
^ g leverage being thus affected, the relative
| sensitiveness of the several movements
- an be controlled. For example, when
the arms are placed as shown in full
lines in Fig. 56, a given angular move-
ment about the (imaginary) axis A B
would give a greater movement to the
steering ropes than the same angular
movement about the axis CD. It
would, therefore, be possible to get, for
example, greater sensitiveness as
regards similar, than as regards diver-
gent, movements of the two rudders,
and it would appear from the description
that this is what Bleriot was aiming at.
The claim, however, refers to the
object of the device as being " to
permit the modification of the relative
sensitiveness of the two rudders," an
expression which, if construed literally,
means a very different thing.
The arrangement illustrated in Fig.
57 is also claimed in this patent. By
carefully examining the mechanism
and connections shown in this figure it
KEVIEW OF BEITISH PATENTS
53
will be seen that, by raising the actuating handle D, the rear
planes A, B, as well as the forward planes C, C, will be tilted
down (i.e., down at the front), and a downward movement of the
handle will have an opposite effect. A movement of the handle
54 AEKOPLANE PATENTS
to the right or left will have no effect on the forward planes but
will tilt one rear plane down and the other up, and at the same
time actuate the vertical rudder.
22258 of Oct. 20, 1908. J, M. Wright.
The propeller A, Fig. 58, is driven by a shaft B to which it is
connected by a universal joint. A similar propeller is provided
on the end of the shaft C, and the two shafts are driven by means
of toothed wheels D by the motor E. A handle F, connected to
a four-armed spider G, is employed to deflect the propeller in any
desired direction by means of four cords H. A similar arrange-
ment is provided for deflecting the other propeller.
23595 of Nov. 4, 1908. W. Friese-Greene.
This invention consists in providing as propelling machinery
a main motor which may be, for example, a petrol engine, a
dynamo adapted to work as a motor, and storage batteries.
During normal running the petrol engine drives the propellers,
and any surplus power is employed in generating current by
means of the dynamo, which current is stored in the storage
cells. Should the petrol engine fail, the dynamo, working as
a motor, obtains current from the storage batteries and drives
the propellers. In the drawings the dynamo is shown as direct
coupled to the engine, and the propellers are driven by chains.
24076 of Nov. 10, 1908. (Nov. 18, 1907.) W. and 0.
Wright.
This invention relates to modifications of, or improvements
in, the wing-warping and rudder devices described in the
Wrights' prior patent, namely, 6732 of 1904. Keferringto Fig. 59,
the cords A at the front of the machine are fixed at their ends, so
that the front edges of the two planes are rigidly braced together
and are incapable of any movement relatively to each other. The
rear edges only of the planes are moved, and this is accomplished
by means of cords B, C and D, E which are connected respec-
tively to the upper and lower ends of the two outer standards
which at each end connect together the rear edges of the planes.
The two centre standards at the rear of the machine are immov-
ably braced together and are also rigidly braced to the two front
standards, so that the whole of the central portion of the machine
REVIEW OF BRITISH PATENTS
55
and the whole of the front face of the machine together form a
rigid structure. In addition to a rear vertical rudder M, a front
a
60
vertical rudder N may also be employed, and the two rudders
may be connected together so as to be actuated by the one
56
AEKOPLANE PATENTS
mechanism. A vertical stationary vane J is, or may be, also
employed to assist the vertical rudder or rudders. H is a
horizontal front rudder.
Claims are made for the means of warping the wings applicable
to the new construction, but, in the author's opinion, the most
important claims in the specification are the 1st and 2nd, which
are as follows :
1. In a flying machine, the combination with a single or multiple aero-
plane having lateral portions capable of being adjusted while in flight to
different angles of incidence on the right and left sides of the machine, of a
vertical adjustable front rudder and a vertical adjustable rear rudder.
2. In a flying machine, the combination with a single or multiple aero-
plane having lateral portions capable of being adjusted while in flight to
different angles of incidence, of a vertical adjustable rudder and a fixed
vertical vane co-operating therewith to form a turning couple.
24077 of Nov. 10, 1908. (Nov. 18, 1907.)-W. and 0.
Wright.
In order to compensate for the unequal resistance to advance
of the two sides of a flying machine, when the angle of incidence
at the two sides is different, vertical vanes or rudders A, A are
arranged one at each wing tip as shown in Fig. 60, which is a
Fig. 60. Wrights' Vertical Eudders.
plan of a bi-plane machine with the top plane removed. The
vanes or rudders A are actuated by cords B which pass over
pulleys C and can be tensioned by means of a lever which
actuates the drum D. A corresponding and adjacent lever
arranged to actuate a co-axial drum E is employed to operate
the cords which control the warping of the wings.
The specification contains the following noteworthy para-
graph :
The lateral rudders may likewise be replaced by surfaces movable about
axes normal to the line of flight, kept normally flattened down upon the
planes of support and raised on the side of the machine which is presented
at the smaller angle of incidence when a modification is made in the angles
REVIEW OF BRITISH PATENTS
57
of incidence of the wings ; for the same purpose there might likewise be
employed longitudinal vertical surfaces arranged for example along the small
sides of the aeroplanes, drawn at pleasure and brought forward by a return
square on the extreme vertical rods connecting the horizontal superposed
planes.
28026 of Dec. 23, 1908. (Dec. 26,
1907.) R. Esnault-Pelterie.
The invention herein described and
claimed consists in a hydro-pneumatic
spring buffer intended to reduce the
shock of landing of an aeroplane.
The plunger 1, Fig. 61, is attached to
the wheel of the machine, and is
adapted to work within the cylinder 6
which contains oil 19 up to the level
indicated. The cylinder is provided
with diaphragms 9 and 12. The
former contains a single opening 17
which can be very nearly closed by a
disc 10 mounted on a spindle 18 which
is guided in the upper diaphragm and
is normally pressed down by a spring
until the stop 11 makes contact with
the boss of the diaphragm 12. A key
2 attached to the plunger 1 works in
a double slot 8 formed in the
cylinder. The shock of landing gives
the plunger 1 a relative upward move-
ment which compresses the spring 4
which is situated between the collars
3 arid 5 carried respectively by the
key and by the cylinder. The oil at
first escapes rapidly through the hole
17 in the lower diaphragm and the
Fig. 6L Esnault-Pelterie's
* Spring Buffer.
hole 13 in the upper diaphragm, but the disc 10 is immediately
forced upwards so as to nearly close the hole 17 and thus restrict
the area of outflow. The shock of landing is thus cushioned,
and the accumulated energy in great part absorbed. The upper
space in the cylinder 16 is filled with air which also serves as a
cushion. This air cushion is of use when the machine is running
on its wheels before taking flight.
58
AEROPLANE PATENTS
463 of Jan. 7, 1909. (Jan. 15, 1908.)-
L. Bteriot.
The support a, Fig. 62, for the wheel of a flying machine is
rigidly connected to the frame b of
the machine so that it can be
employed for other purposes than
the support of the wheel. The
wheel d is placed to the rear of the
rod a and is carried by rods /and h
which are pivotally connected to
collars g and i carried by the rod
so that the wheel can have an
angular horizontal movement rela-
tive to the frame of the machine,
and will act like a castor in always
tending to place its plane in the line
of motion of the vehicle. Moreover,
the collar i can slide upwards on
the rod a, being held down only
by a spring j, so that the shock
of landing is reduced.
750 of Jan. 12, 1909.
A. V. Roe.
A flying machine, shown in side
Fig. 62. Bleriot's Wheel
Support.
elevation in Fig. 63, is described in which three superimposed
Fig. 63. Eoe's Flying Machine.
main planes A, B, C (two, or more than three, might however
be employed) are connected together by a rigid front frame and
EEVIEW OF BKITISH PATENTS
59
a flexible rear plane. The system of bracing which is employed
is interesting, but cannot be described in this abridgment.
The steering rod D carrying the steering wheel E is pivoted
at F so that, when the wheel is raised or lowered, the rear edges
of all the planes are raised or lowered and, when the wheel is
rotated one way or the other, the planes are raised at one side and
lowered at the other, while the vertical rudder H is at the same
time actuated by cords K.
2913 of Feb. 6, 1909. (Feb. 10, 1908.)-W. and 0.
Wright.
This invention consists principally in a device for automatically
maintaining the equilibrium of a flying machine. The horizontal
Fig. 64. Wrights' Stabilisation Device.
60 AEKOPLANE PATENTS
vane A, Fig. 64, is supported in a framework which can be
adjusted so that the vane makes such an angle with the main
supporting surfaces as it is desired that this surface should main-
tain with the relative wind. If the relative wind at any time
strikes the main planes at an angle of incidence greater than the
angle between these planes and the vane A it will strike the latter
vane on the underside and force it upwards. The vane will thus,
by means of the link B and lever C, actuate a valve D which con-
trols the admission of compressed air to a cylinder E. This cylinder
actuates the drum F which operates the horizontal rudder H.
The action of the vane A is therefore to right the machine.
A device is also described whereby, if the machine tilts laterally,
a pendulum actuates a valve which controls the admission of
compressed air to an engine which operates cords so as to warp
the wings and deflect a vertical rudder.
The devices are described in great detail together with positive
control arrangements.
8118 of April 5, 1909, and 11021 of May 10, 1909.
J. W. Dunne.
The specifications of these patents are of interest, but cannot be
satisfactorily abridged in the space here available.
The inventor proposes, with the object of obtaining automatic
stability and freedom from oscillation, to construct the supporting
planes as one or two pairs of rearwardly projecting rigid wings,
a line joining the tips of any pair of wings passing behind the
centre of gravity of the machine. (The machine in plan is like a
broad arrow.) The angle of incidence of each wing decreases
from the body of the machine to the wing tip.
10098 of April 28, 1909. (May 22, 1908.)-
R. Esnault-Pelterie.
This invention relates to air propellers, the blades of which are
pivoted to the boss in such a manner that automatic adjustment
can take place. Figs. 65 and 66 are exact reproductions of the
drawings. The description and explanation given in the
specification with reference to these figures are not as full as they
might with advantage have been, and it would not be safe to
attempt an abridgment. Fig. 66 is said to be a section on
the line XX, of Fig. 65, and v is said to represent the direction
EEVIEW OF BRITISH PATENTS
61
(Fig. 67.)
Fig. 65. Esnault-Pelterie's Movable Blade Propeller.
of flow of the air encountered by the sectional element of the
blade under consideration. The first claim of the patent is
important : it reads as follows :
A helical propeller whereof the blades, which are mounted on arms
adapted in known manner to rotate on their axes, are made with a concave
62
AEROPLANE PATENTS
surface and a convex surface such that the blades are automatically and
correctly turned into the position suitable for the speed of travel,
substantially as described.
Fig. 67 shows a modified connection for the propeller arm, a
spherical socket being employed so that not only can the arm
turn on its axis, but it can, as indicated by the dotted lines,
assume different inclinations.
10422 of May 3, 1909, F. W. Lanchester.
In the flying machine, shown in Fig. 68, A, A are the main
Fig. 68. Lanchester's Steering Device.
Fig. 69. Lanchester's Box Eudder.
supporting planes and B is the propeller. The box rudder C is
of multicellular form and may be constructed, as shown in end
elevation in Fig. 69, to consist of six cells, 1, 2, 3, 4, 5, 6. The
EEVIEW OF BRITISH PATENTS
63
(Fig. 70.
rotary motion given to the air by the propeller acts to a certain
extent on the surfaces forming the rudder, and so helps to neutralise
the re-active torque of the propeller which tends to turn the
flying machine about an axis parallel to the axis of rotation of the
propeller. The angular
position of the rudder C
can be altered by hand
by means of the spindle
D, worm K, and toothed
segment L. E is a for-
ward rudder pivotally
supported at its forward
edge and free to take up
any angular position in a
vertical plane unless con-
trolled by the handle H.
12036 of May 21,
1909. '
(July 6, 1908.)-
Soc. des Moteurs
Gnome.
This patent relates to
explosion motors of the
type in which the cylin-
ders rotate about a fixed
axle or crank shaft. Figs.
70 and 71 are reproduced
from the specification.
The claims are as fol-
lows :
1. An explosion motor
with radial cylinders rotating
round a fixed axle in which
the explosive mixture is in-
troduced into the casing by
the hollow shaft, and is ad-
mitted into the explosion
chamber by an admission
valve mounted on the piston,
characterised by the exhaust
valve of each cylinder being
Figs. 70 and 71. Gnome Motor.
64
AEROPLANE PATENTS
arranged on the bottom of said cylinder so as to allow the burnt gases
to escape radially from the interior to the exterior, their evacuation being
assisted by centrifugal force, substantially as described.
2. Motor as in Claim 1, wherein the admission valves mounted on the
pistons are automatic and balanced so as to be able to open under the effect
of the suction produced in the explosion chambers by the evacuation of the
burnt gases, thus producing an automatic clearance of these gases.
3. The improved rotary motor, substantially as herein described and
illustrated in the annexed drawing.
In Fig. 70 the admission valve is shown at A. It is balanced
by two weights which are controlled by a spring so that it is
uninfluenced by the centrifugal force caused by the rotation of
the cylinder. The spring is adjusted to be of sufficient strength
to allow the valve to open when, during the suction stroke of the
engine, the pressure on the side of the valve adjacent to the
crank shaft is greater than the pressure on the other side of the
valve. The exhaust valve is controlled by a cam B, which is
caused to rotate at the speed requisite to open the exhaust valve
of each cylinder once in every two revolutions. One cam serves
to actuate the valves of all the cylinders, levers C and I) being
provided for each cylinder. The levers are balanced so as to be
unaffected by centrifugal force as regards their action on the valve.
12256 of May 24, 1909. A. M. Herring.
A and B, Fig. 72, represent the two main supporting
B
Fig. 72. Herring's Gyroscopically- Controlled Propellers.
surfaces of a flying machine, and C diagrammatically represents
the motor which drives the shafts D, E. H, H are the propellers
EEVIEW OF BRITISH PATENTS
65
which are rotated in opposite directions. The propeller shafts
K, K are so supported and so driven from the motor shafts that
they can swing in horizontal planes but are prevented from
swinging in vertical planes. When the machine in flight tilts
up or down, considered longitudinally, the propeller shafts, due
to gyroscopic action, will either swing towards each other or
away from each other. In either case, by means of the cords
M, M, lever N, and T-shaped lever P, they will actuate the cord
Q, which is arranged to control the inclination of fore and aft
rudders or auxiliary supporting surfaces, so as to effect the
righting of the machine.
Other devices involving the employment of independent gyro-
scopes are also described in connection with the fore-and-aft and
transverse stability of flying machines.
16068 of July 9, 1909. (July 15, 1908.)-W. and
0. Wright.
A flying machine double rudder, shown in Fig. 73, consists of
-<2
-c
-^ff"
Fig. 73. Wrights' Cambered Eudder.
A.P.
66 AEROPLANE PATENTS
two planes A, A, pivoted at B, B to the frame C of the machine.
A pulley D, also pivoted to the frame, is adapted to be actuated
by a rope E, and is rigidly connected by means of its shaft to
levers H of which one only is seen. The levers are connected by
links K, K to the ends of the rudder surfaces. The ratio of the
two arms of the levers is not the same as the ratio of the two
portions of the rudder surfaces, so that the rudder surfaces,
besides being swivelled with the lever, are bent into the curved
forms indicated by the dotted lines, that is, the rudder surfaces
are cambered, the concave side being presented to the relative
wind. The longitudinal bars of the rudders may, if desired, be
formed in two portions pivotally connected at B, and the links
K may also be made in two portions pivotally jointed at the
points where they are connected to the end of the levers. The
device may be applied to other than horizontal rudders.
23166 of Oct. 11, 1909. H. L. Short, A, E. Short,
and K. 0. Short.
This invention also relates to means for altering the angle
of a rudder and at the same time flexing or cambering it so that
it will receive the air pressure on its concave side. The desired
camber is obtained by proportioning the ribs of the rudder.
The frame 10, Fig. 74, carries the uprights 3, 7. The ribs 5
of the double rudder are made of diminishing thickness towards
the forward end at which they are connected to a transverse
member 1 hinged at 2 to the uprights 3. The ribs 5, at an
intermediate portion of their length, are fastened to transverse
members 4 which are anchored by links 8 to brackets 14 which
are rigidly connected to the uprights 7. The shaft 16, supported
in bearings carried by the frame 10, is operated by the crank 19
and the connecting rod 20, and actuates levers 17 which, by
means of links 18 and rods 15, give the desired movement to the
rudders. The dotted lines give the curve of the rudders when
the rear ends are deflected upwards. It will be noted that the
deflecting force is applied to the rudders at one (the rear) edge
only.
EEVIEW OF BEITISH PATENTS
67
Fig. 74. Shorts' Cambered Rudder.
2611 of Feb. 2, 1910. H. L. Short, A. E, Short, and
H. 0. Short.
This patent, granted to the same parties as the last reviewed,
relates to another device for giving camber to a rudder, but the
device in the present instance is said to be also suitable for the
main supporting surfaces. Referring to Fig. 75, a fabric 4 is
F2
68
AEROPLANE PATENTS
directly connected, say at its forward edge, to a frame 1, 2, 3, 3,
while the rear edge of the fabric is connected to the frame by a
device comprising the use of a spring or springs. Different
spring arrangements are described. In the device shown in the
figure, spiral springs 6 are interposed between the frame and a
Fig. 75. Shorts' Cambered Plane or Eudder.
bar 5 to which the fabric is attached. Laths or other flexible
members 7 may be placed in longitudinal pockets provided in the
fabric, and these laths are preferably constructed, as shown at 5
in Fig. 74, with the forward end of less depth or thickness, and
therefore more flexibility, than the rear end.
4515 of Feb. 23, 1910. P. R. Grace.
This invention relates to a device for tensioning the flexible or
wire ties employed in the construction of aeroplanes, etc. As
shown in Figs. 76 and 77, the device consists of two annular
plates 6, 6, held together by four screws 7. The wires 4, 5 at
their point of crossing pass between the two plates and are
secured in tension by tightening the screws 7. If one of the
OF
REVIEW OF BRITISH PATENTS
69
wires should become slack from any cause, the clamping device is
loosened and moved a small distance along the other wire (which
is still in proper tension), so altering the point of crossing and
bringing the slack wire to the requisite degree of tension as shown
by the dotted lines in Fig. 76. The screws are then tightened
(Fig. 77.)
Figs. 76 and 77. Grace's Clamping Device.
to again secure the wires together. If, however, both wires
should become slack, the device is loosened and moved down
vertically until the wires again have the proper tension: the
screws are then tightened.
14760 of June 18, 1910. (July 1, 1909.) Societe
Antoinette.
This relates to a device for procuring a helicoidal deformation
of the wings by means of ropes which pass over upper and lower
pulleys and are attached to the front or rear edges of the wings,
the two wings being warped in opposite directions.
SECTION III
BRITISH PATENTS RELATING TO HEAVIER-THAN-AIR FLYING MACHINES
FROM THE BEGINNING OF 1860 TO THE END OF 1908
ALSO APPLICATIONS FOR PATENTS FROM JANUARY 1, 1909, TO
JUNE 30, 1910
ACCORDING to the classification adopted by the British Patent
Office nearly all the patents enumerated below are included in the
class entitled " Aeronautics." This class, however, includes many
inventions which are not of interest in connection with heavier-
than-air machines, and which have consequently been excluded
by the author from the lists given below. Patents for balloons
and the like have, as a rule, been omitted ; but, where a
propeller, rudder, or other device, is described or claimed which
was considered by the author as of interest to inventors or
manufacturers of heavier-than-air machines, the patent has been
included. The Patent Office classification, although of great use
for the purpose for which it is intended, could not be, and has
not been, relied upon for the present purpose, but an independent
selection has been made.
As the specifications of a large number of applications for
patents dated as of 1909 have not yet been published, this year,
along with the first eight months of 1910, has been treated dif-
ferently from the previous years. It has been impossible to make a
selection of the patents applied for during this period of twenty
months, and all the applications considered by the Patent Office to
be comprised in the class "aeronautics" have been included, with
an additional few which were considered relevant. Some of these
applications may not be of interest in connection with heavier-
than-air machines, and others may be subsequently abandoned
and no patent granted.
In many cases inventions are communicated from a party
abroad to a party (usually a patent agent) resident in this
country. In such cases the name of the communicatee is placed
first, and the name of the communicator is printed immediately
afterwards within parentheses.
HEAVIEE-THAN-AIB FLYING MACHINES 71
I860.
561 Smythies, J. K.
1598 Stevens, C. (Rabbat, C. F.).
1861.
1929 Ponton d'Amecourt,G.L.M.,
Viscount de.
2420 Phillips, J. S.
1862.
None.
1863.
None.
1864.
2030 Brooman, E. A. (Couturier,
C. E. F.).
2464 Fontaine-Moreau, P. A.,
Comte de (Nesmond, P. C.).
1865.
None.
1866.
1143 Butler, J. W.
1571 Wenham, F. H.
2489 Boulton, M. P. W.
3262 Boyman, R. B.
1867.
473 Kaufmann, J. M.
696 Boulton, M. P. W.
1392 Smyth, W.
1525 Kaufmann, J. M.
1982 Craddock, T.
2115 Butler, J. W., and Edwards,
E.
2229 Nelson, J. E.
2504 Smythies, J. K.
1868.
392 Boulton, M. P. W.
412 Masey, P. E.
568 Hullett, J.
1005 Boulton, M. P. W., and
Imray, J.
1178 Spencer, C. G.
1988 Boulton, M. P. W.
2680 Hunter, J. M.
1869.
1124 Abel, C. D. (Jombart, E.).
1769 Michel, M.
2827 Noble, W. H. (Marriott, F.).
1870.
440 Villeneuve, A. H. de.
1469 Harte, R.
2040 Ross, W. M.
1871.
728 Osselin, A. F.
3067 Wilson, G.
3238 Moy, T., and Shil, R. E.
1872.
411 Brown, D. S.
821 Soul, M. A. (Haenlein, P.).
1873.
2346 Brown, D. S.
2396 Gedge, W. E. (Freville, E.).
3194 Wirth, F. (Beins, H.).
3309 Fleury, A.
1874.
81 Vogt, H. C. de.
265 Monckton, E. H. C.
777 Ridley, J. D.
2808 Moy, T.
1875.
140 Cave, J. 0. C.
574 Boulton, M. P. W.
4151 Smythies, J. K.
1876.
None.
1877.
3974 Brannon, P.
1878.
3346 Brewer, E. G. (Bastien, J. B. ).
1879.
2376 Brearey, F. W.
1880.
4871 Stevenson, R.
72
AEEOPLANE PATENTS
1881.
430 Capel, T. J., and la Pauze,
A. de.
3561 Kerkhove, A. H. van de, and
Snyers, T.
1882.
34 Smythies, J. K.
1229 Lake, A. W. (Hyatt, T.).
4585 Maughan, B. W., and Waddy,
S. D.
5251 Jensen, P. (Koch, G-.).
1883.
1 552 Maughan, B. W. , and Waddy,
S. D.
2264 Sjostrom, P.
4245 Johnson, J. H. (Delaurier,
E. J.).
1884.
7 Smythies, J. K.
2339 Quartermain, W.
2589 Cornelius, W.
5942 Kosztovits, O. I.
12503 Smart, G. E.
13768 Phillips, H. F.
14038 Armour, J.
1885.
5118 Henderson, A. 0. (Bontems,
B.).
9193 Owen, E. G.
10068 Griffiths, T.
1886.
1830 Waelde, J.
7015 Eedfern, G. T. (Foster, J. S.).
1887.
None.
1888.
9725 Middleton, H.
1889.
3360 Craig, J.
5199 Millet, F. T.
10359 Maxim, H. S.
14737 Otto, E. C. F., and E. C. F.
16883 Maxim, H. S.
13311
1890.
Griffiths, T., and Beddoes,
H. W.
Moore, K. F%
20435 Phillips, H. F.
1891.
13311 Phillips, H. F.
19228 Maxim, H. S.
20032 Hutchinson, W. N.
21885 Middleton, H.
1892.
634 Walker, J. C.
3872 Quentin, A. A. H., and
Guattari, A., and C.
9106 Crease, J. F.
15977 Battey, S. B.
1893.
1064 Stark, T. A., and Ortlepp
J. C.
9775 Middleton, H.
10852 Maxim, H. S.
16269 Thompson, W. P. (Koch, G.).
17859 Decazes, Vicomte.
1894.
3128 Mills, F. E., and Deming,
H. A.
7919 Hofmann, J.
9347 Booth, H. S.
10034 Haddan, H. J. (Piquet & Co.).
10819 Golby, F. W. (Oetling, C.).
11941 Hofmann, J.
13996 Thompson, W. P. (Palacios,
E. de, and Goetjes, W.).
15128 Lautenschlager, P. E.
19264 May, E. E.
22597 Birnbaum, E. J. W. P.
23564 Borgfeldt, N. H.
1895.
6 Moore, E. F.
4125 Macdonald, T.
5938 Barbe, P. E. S.
7271 Los Olivos, E. C. de.
9390 Eoeper, C. H. O.
10239 Marshall, J.
22011 Hofmann, J.
25050 Pennington, E. J.
HEAVIEE-THAN-AIR FLYING MACHINES
73
1896.
3657 Eoots, J.
9108 Waelde, J., and Abelspies,
J. F. 0.
9144 Pilcher, P. S.
12469 Davidson, G. L. 0.
17119 Pennington, E. J.
25716 Simms, F. E.
1897.
2351 White, J. D.
3608 Lanchester, F. W.
5739 Molesworth-Hepworth,E.N.
6320 Simms, F. E.
7012 Diesel, E.
9734 Marshall, J.
9864 Beenen, B. E.
10620 Maxim, EL S.
13372 Chanute, O.
14334 Dufferin, H. J.
15221 Moy, T. (Chanute, 0., and
Herring, A. M.).
15987 Adams, A.
18663 Krauss, E.
18935 Hardacre, G.
26391 Wolf, Carl, Baron von.
30932 Carter, W. T.
1898.
10968 Le Eond, L. J. J. B.
1899.
3637 Blunt, A. H. P.
7442 Bowyer-Smyth, D. M.
8019 Blunt, A. H. P.
17611 Brown, B.
17913 Baumann, A.
17977 Walker, W. G.
20739 Armitage, 0.
21329 Placet, P. E.
1900.
12514 Kalisch, E.
13241 Groombridge, C., and South,
W. A.
17367 Gathmann, L.
17371 Lehmann, E.
18287 Vergara, A.
19199 Filippi, A. P., and Macler, C.
1900 continued.
19424 Tarbe, J.
20115 Blunt, A. H. P.
20368 Simms, F. E.
1901.
346 Blunt, A. H. P.
883 Flynn, P. J.
1066 Nicholl, G.
2389 Briincker, E.
3691 Leger, M.
8320 Tarczal, V., Eoheim, E., and
Simko, J.
15960 Porak, W.
16100 Griffiths, W. J.
16856 Moy, T.
18862 Tuckfield, C.
19995 Swingle, E. L.
1902.
8681 Haas, T.
9251 Murray, T. B., and Fulton,
F.O.
9706 Blunt, A. H. P.
10267 Fraser, J.
11616 Lipkowski, J. de.
11982 Seiberi, J.
13499 Krakow, A. K E. A.
14145 Le Eond, L. J. J. B.
15110 Bausset, A. de.
15403 Nemethy, E.
16698 Sampson, D.
21680 Middleton, H.
23161 Manker, C. A.
24587 Mott, S. D.
25723 Groombridge, C., and South,
W. A.
27027 Cochrane, W.
1903.
878 Lebaudy, P., and P.
1943 Graham, C. K
2688 Baumann, A.
2826 Wellner, G.
7179 Winsch, J., and Lazarowicz,
J.,
7763 Haylock, D., and E. A.
11719 Eoux, E.
12149 Booth, H. S.
74
AEKOPLANE PATENTS
1903 continued.
15748
Maxim, Sir H. S.
18768
Bourcart, M.
19347
Green, W. A.
20169
Bratschie, A.
20702
Stewart, J.
23380
Long, L.
24701
Howell, T. J.
25378
Barclay, J.
25444
Blunt, A. H. P.
26821
Powell, B. F. S. Baden-
27212
Brennan, L.
1904.
1446
Avery, A. H.
1543
Hawkins, E. C.
1763
Macleod, M. C.
1778
Hutchinson, F. W. H.
1788
McMullen, G.
3120
Maxim, Sir H. S.
3307
Voj&cek, L.
3336
Visoly, S. H. de.
3929
Crawford, E. L.
4901
Adams, H.
5787
Hiickel, H.
6732
Wright, 0., and W.'
8418
Hoernes, H.
9506
Parker, T.
13502
Delprat, A.
13747
Benston, E.
14327
Winegarden, A. van,
Crawford, G. M.
14367
Mutti, A.
15798
Thompson, W. P.
21477
Marinakis, A.
23833
Jones, J. M.
24807
Knapper, G.
26891
Preidel, W.
28264
Westlake, A. J.
and
1905.
3186 Morgan, F. S.
3214 Mumford, E. E.
3456 Bennett, J. F., Mastin, J.,
and Platts, W.
3990 Dufaus, A., and H.
7603 Forlanini, E.
7802 ' Shanks, J., and Taylor, A. G.
9767 Becht, L. A.
190 5 continued.
11748 Blunt, A. H. P.
15613 Booth, H. S.
15698 Mumford, E. E.
16838 Wondra, F.
17935 Lanchester, F. W.
25395 Simms, F. E.
1906.
620 Gambin, A.
1436 Middleton, H. M.
1747 Montgolfier, P. de.
2803 Eenner, E., M., L., and A.
4204 Fauber, W. H.
6443 Powell, B. F. S. Baden-.
6502 Eebikoff, W.
7377 Ellehammer, J. C. Hansen.
8316 Gilbert, W. V.
8868 Turnbull, W. E.
9804 Brandl, A.
10757 Boult, A. J. (Maul, A.).
11699 Dippel, C.
13959 Lentz, H., and Bellens, C.
14003 Gibon, T.
16626 Harper, W.
18581 Armitage, C.
19259 Cornu, J., and P.
19488 Hardie, A.
20952 Garsed, J. L.
21514 Homola, J.
26099 Eoe, A. V.
26414 Taaffe, E.
26764 Vaniman, M.
27312 Thompson, W. P.
27817 Deixler, J.
28710 Clarke, T. W. K
29061 Wynne, W. E.
29308 Murray, W. E.
1907.
16 Kay, M.
1004 Wallace, G.
1391 Wallin, B. H.
1831 Eder, J.
1960 Davidson, G. L. 0.
2084 Burgess, W. E.
2353 Lucas, E.
2479 Dalton, P.
4033 Tasker, E. E.
HEAVIER-THAN-AIK FLYING MACHINES
75
1907 continued.
4043 Laitte, L. B. de.
4245 Porter, J. E.
4659 Hewitt, S. E.
4835 Hammond, E. V.
6946 Bliven, A. P.
7059 Nial, M.
7156 Eoots, J. D.
7491 Hutchinson, F. W. H.
7887 Hutchinson, F. W. H.
7894 Thomas, F. W.
8435 Saward, J.
8966 McCurd, W. A.
9119 Eeden, U. von.
9413 Lanchester, F. W.
9413a Lanchester, F. W.
9594 Garsed, J. L.
9691 Powell, B. F. S. Baden-.
10004 Bode, E.
10961 Schiilke, J.
11188 Buch, M.
11590 Hardie, A.
12848 Peugot, A., and Huber, T.
(trading as Soc. A. Peugot ;
T. Huber & Co.), and
Lostalot, H. de.
13905 Zizke, E.
15438 Buckwalter, 0. L.
15457 Wallin, B. H.
15590 Porter, J. E.
15796 Simms, P. E.
15890 Addis, F. H.
16484 Lindkvist, E. E.
17156 Forlanini, E.
17366 Colquhoun, J. A.
17725 Webb, H. B.
18158 Frossard, J.
18559 Gathmann, L.
19822 Pomianowski, E. A.
21290 Clarke, T. W. K
21923 Chappell, C. A.
22273 Davies, C. J.
23307 Day, S. A.
23459 Eaggett, J. J.
23553 Watson, P. A.
24247 Scott, B. D., and W. E.
25295 Taaffe, E.
25518 Antoni, G., and U.
26000 Hennebique, F.
1907 continued.
26069 Bedell, B. H.
26884 Bjelovucic, M. S.
27221 Fadda, A. S., Lorenzo, J. di,
and Aeroplane Co.
27408 Straka, J.
27552 Cloud, J. W.
27805 Connolly, B.
28034 Pelterie, E. Esnault-.
28590 Capone, F.
1908.
84 Neyen, E.
221 Pelterie, E. Esnault-.
1035 Garsed, J. L.
1258 Pelterie, E. Esnault-.
1307 Winderlich, A.
1445 Fronz, F.
1593 Ferrero, M.
1683 Heeren, O.
2216 Larkin, G. P., and Bowden's
Patents Syndicate, E. M.
2493 Wilson, E. F.
2588 Bleriot, L.
2651 Thompson, W. P.
2808 Dunne, J. W., and Hunting-
ton, A. K.
4519 Edwards, A. H.
4788 Motorluftschiff-Studienges.
4842 Bernd, E. von.
5220 Lester, E. J., and Best, W. G.
5310 Chantraine, J.
5312 Beach, S. Y., and White-
head, G.
5471 Kerwat, G.
5949 Mutti, A., and Mond, E. L.
5977 Cervelli, J., Molinari, J., and
Bernasconi, J.
7129 Capone, F.
7205 Kay, M.
7370 Saward, J.
7632 Mielcarek, W. S.
8118 Solon, M. P., and Tellwright,
W.
8591 Warswick, A.
8627 Hart, G. W.
8628 Demoulin, A.
8643 Pelterie, E. Esnault-.
8842 Shadbolt, L. P.
76
AEKOPLANE PATENTS
1908 continued.
9069 Bleriot, L. 21498
9898 Brown, 0. K. B. 21618
9970 Humbert, V. 21656
10528 Pelterie, E. Esnault-. 21668
11155 Piffhard, H. H. 21754
11763 Fairweather, W. (Lake, S.). 21952
11905 Skouses, P. 22209
11948 Wisniewski, Y. 22238
12013 Garsed, J. L. 22258
13315 McLean, K. 22384
13809 Lorenzen, C. 22809
14327 Deixler, J. 22943
15924 Clarke, T. W. K. 23104
16030 Campa, P. 23129
16153 Wood, F. 23208
16300 Tzimbalist, I. O. 23316
16606 Greene, W. Friese-, and 23347
Friese-Greene Patents. 23595
16941 Lindkvist, E. E. 23618
17014 Gaunt, J. 23798
17131 Bartelt, F. L. 24076
17150 Weiss, J. 24077
17370 Montjustin, E. d'Equevilley-. 24148
17855 Schroeder, F. W. 24344
17877 Dufwa, F. W. 24441
18877 Kober, M. 24617
19677 Fredrikson, A. J. 24682
19805 Hare, E. H. 24928
19825 Klupathy, E., and Berger, C. 25315
19982 Fraser, J. E. 26617
20038 Maxim, Sir H. S. 26827
20433 Silverston, A. E. 26924
20694 Dontre, A. F. J. 27771
20785 Bleriot, L. 27812
20822 Schmid, E., and Bauer, H. 28015
20916 Humphreys, J. E. 28026
21074 Humphreys, J. E. 28027
21092 Tribelhorn, A. 28028
21261 Porter, J. E. 28119
21363 Evans, W. E. 28273
21445 Degn, P. F. 28321
21497 Bleriot, L. 28558
1908 continued.
Penkala, E., and E.
Danovan, J.
Thayer, E.
Howard, W. F.
Grosclaude, D. A. L.
Britain, W.
Mark, W.
Humphreys, J. E.
Wright, J. M.
Baron, F. E., and M.
Perks, E.
Geest, K. L. W.
Garsed, J. L.
Hammant, W.
Taylor, F. W. T.
Garsed, J. L.
Holle, A. A.
Greene, W. Friese-.
Schiitz, S.
Mercer, I. E.
Wright, W., and O.
Wright, W., and O.
Degn, P. F.
Fauber, W. H.
Cloud, J. W.
Peache, G. A.
Garsed, J. L.
Tacquin, A.
Thompson, W. P.
Beilharz, G.
Forbes, Sir C. S.
Sturgess, G., and C.
Babillot, G.
Smith, G. P. B.
Steinhaus, E. E.
Pelterie, E. Esnault-.
Pelterie, E. Esnault-.
Pelterie, E. Esnault-.
Phillips, A.
Forbes, Sir C. S.
Fawcett, J.
Boult, A. J.
HEAVIEK-THAN-AIK FLYING MACHINES
77
1909.
47
2932
6154
8602
10468
12269
14638
16623
101
3144
6310
8687
10479
12305
14645
16677
123
3202
6366
bS28
10495
12369
14666
16707
205
3412
6378
8849
10540
12446
14668
16747
217
3455
6414
8866
10761
12536
14682
16785
307
3503
6500
9006
10764
12556
14685
16786
463
3535
6568
9060
10869
12670
14921
16829
600
3616
6598
9068
10875
12728
14922
16868
704
3645
6647
9074
10990
12775
14927
16971
750
3697
6648
9181
11021
12814
14958
17053
753
3728
6745
9235
11069
12846
14990
17131
755
3837
6869
9239
11090
12856
15013
17173
771
3908
6966
9295
11100
12907
15022
17291
863
3932
6989
9303
11141
12925
15109
17295
962
3962
7057
9321
11153
13054
15110
17307
1051
3965
7061
9388
11197
13108
15195
17310
1303
4006
7084
9500
11279
13133
15233
17343
1351
4097
7105
9512
11299
13270
15271
17456
1402
4217
7209
9519
11367
13293
15291
17552
1497
4348
7237
9525
11395
13319
15402
17569
1514
4473
7349
9608
11448
13417
15415
17613
1528
4525
7395
9609
11498
13418
15422
17668
1556
4607
7501
9610
11501
13477
15510
17678
1632
4624
7503
9611
11504
13608
15542
17811
1639
4642
7524
9616
11523
13618
15564
17857
1640
4803
7548
9635
11534
13651
15577
17986
1656
4812
7666
9687
11536
13670
15587
17993
1709
4945
7667
9805
11638
13706
15637
18008
1803
4954
7774
9843
11814
13726
15675
18033
1909
5133
7792
9846
11819
13774
15677
18040
1999
5221
7987
9857
11934
13791
15801
18041
2111
5391
7998
9983
11960
13818
15831
18055
2131
5550
8011
9989
11961
13853
15885
18068
2165
5628
8086
9990
11962
13965
15940
18095
2166
5649
8118
10006
11963
14031
15951
18096
2304
5662
8179
10098
12003
14077
15963
18097
2397
5699
8192
10131
12036
14188
16010
18116
2446
5716
8282
10142
12042
14355
16011
18138
2467
5720
8285
10154
12044
14373
16045
18174
2540
5910
8350
10193
12080
14414
16068
18204
2572
5915
8363
10245
12081
14434
16077
18205
2575
6017
8407
10299
12163
14437
16085
18212
2593
6021
8432
10304
12172
14438
16107
18234
2606
6038
8441
10306
12186
14476
16274
18237
2741
6072
8462
10347
12231
14494
16303
18303
2744
6092
8463
10359
12256
14519
16367
18318
2913
6119
8501
10422
12263
14520
16430
18327
2926
6125
8531
10467
12268
14583
16494
18344
78
AEEOPLANE PATENTS
1909 continued.
18374
19627
20520
22162
23309
24685
26165
28092
18375
19641
20530
22167
23362
24722
26185
28109
18884
19666
20555
22176
23386
24728
26321
28123
18459
19700
20575
22203
23454
24732
26329
28134
18486
19731
20577
22206
23492
24774
26390
28149
18525
19760
20594
22251
23498
24791
26394
28168
18546
19765
20609
22264
23589
24808
26441
28195
18620
19807
20630
22265
23626
24830
26488
28198
18634
19808
20675
22268
23656
24888
26549
28203
18639
19810
20723
22286
23666
24902
26567
28236
18651
19822
20753
22295
23713
24985
26568
28243
18688
19823
20846
22304
23740
25017
26599
28253
18710
19824
20854
22350
23754
25116
26601
28316
18722
19830
20877
22379
23757
25163
26626
28382
18751
19874
20887
22386
23776
25168
26637
28403
18766
19896
20897
22439
23779
25183
26638
28461
18767
19934
20925
22447
23843
25295
26674
28464
18768
19952
20954
22470
23844
25319
26703
28503
18777
19976
20962
22475
23845
25320
26710
28517
18796
19977
21040
22477 .
23915
25327
26716
28568
18829
19988
21045
22521
23931
25394
26916
28576
18892
20024
21052
22528
23967
25406
27082
28602
18899
20078
21059
22547
24038
25453
27140
28626
18909
20082
21132
22576
24088
25480
27183
28831
18972
20108
21189
22684
24089
25508
27271
28837
18976
20145
21200
22706
24090
25535
27298
28852
18982
20164
21210
22727
24104
25555
27316
28920
19005
20173
21220
22737
24107
25575
27375
28962
19006
20180
21360
22814
24162
25603
27476
28979
19046
20208
21373
22821
24221
25619
27490
28995
19163
20232
21384
22829
24315
25632
27535
28999
19198
20249
21413
22836
24339
25662
27545
29012
19208
20250
21465
22852
24381
25663
27672
29024
19216
20256
21485
22860
24385
25669
27673
29036
19240
20267
21486
22883
24386
25726
27690
29037
19265
20268
21724
22985
24399
25744
27760
29066
19266
20283
21732
23003
24410
25754
27779
29067
19303
20295
21785
23015
24424
25780
27804
29150
19315
20296
21813
23020
24427
25787
27838
29195
19327
20349
21903
23143
24433
25805
27851
29268
19345
20350
21922
23145
24484
25849
27856
29338
19405
20351
21927
23152
24499
25864
27892
29372
19415
20357
21956
23153
24519
25873
27903
29440
19473
20422
22012
23158
24535
25968
27974
29443
19493
20448
22021
23159
24570
26059
27988
29478
19540
20463
22042
23166
24606
26074
28009
29481
19548
20477
22069
23186
24655
26097
28034
29492
19619
20491
22124
23270
24658
26138
28040
29513
HEAVIEB-THAN-AIB FLYING MACHINES
1909 continued.
79
29724
29855
30105
30194
30414
30521
30588
29792
29856
30143
30282
30454
30533
30595
29793
29996
3U183
30344
30490
30573
30604
29834
30083
1910 (eight months only].
27
1924
3566
5676
6959
8663
10924
12182
171
1972
3678
5703
6971
8750
10947
12195
193
2065
3728
5726
7020
8778
10952
12208
210
2095
3732
5737
7023
8808
10986
12228
217
2118
3766
5836
7037
8822
10993
12239
223
2142
3861
5843
7053
8901
11009
12306
236
2203
4029
5857
7067
9016
11039
12374
237
2231
4042
5908
7101
9047
11040
12502
356
2241
4048
6004
7130
9163
11101
12514
386
2247
4095
6029
7131
9306
11193
12516
473
2280
4229
6037
7145
9329
11205
12519
515
2294
4297
6048
7244
9485
11319
12578
600
2302
4344
6050
7265
9495
11328
12698
630
2450
4377
6051
7289
9503
11332
12746
635
2479
4433
6074
7333
9544
11334
12769
712
2481
4510
6098
7349
9666
11348
12819
716
2555
4515
6100
7372
9709
11355
12833
762
2611
4516
6131
7381
9800
11396
12866
785
2612
4560
6150
7409
9950
11398
12892
885
2613
4663
6174
7443
10059
11420
12905
935
2614
4674
6180
7508
10064
11467
12934
996
2615
4708
6187
7530
10184
11504
12957
1017
2626
4764
6217
7582
10235
11654
12965
1114
2631
4779
6264
7668
10253
11666
13005
1125
2664
4791
6287
7678
10364
11701
13013
1258
2751
4822
6314
7680
10376
11754
13044
1297
2800
4891
6316
7780
10415
11757
13068
1318
2827
4965
6323
7814
10424
11779
13119
1344
3014
5164
6359
7950
10453
11786
13202
1388
3045
5218
6360
8013
10457
11793
13240
1429
3079
5327
6388
8066
10575
11808
13290
1443
3303
5403
6401
8083
10699
11828
13298
1545
3305
5439
6416
8092
10702
11847
13324
1624
3374
5473
6605
8204
10713
11882
13331
1640
3432
5499
6642
8212
10787
11894
13375
1694
3438
5564
6647
8290
10816
11984
13376
1873
3458
5573
6657
8569
10877
12039
13434
1887
3506
5629
6689
8606
10896
12092
13441
1922
3533
5646
6775
8619
10902
12164
13484
80
AEKOPLANE PATENTS
1910 continued.
13486
14560
15231
16705
17460
18064
19013
19616
13573
14610
15278
16773
17510
18104
19017
19700
13587
14649
15308
16790
17527
18117
19029
19718
13607
14653
15502
16802
17552
18158
19086
19759
13658
14654
15566
16886
17591
18207
19180
19779
13710
14656
15576
16888
17634
18283
19204
19798
13955
14673
15602
16946
17638
18284
19221
19852
13980
14688
15633
16970
17653
18478
19261
19857
14073
14724
15761
16976
17668
18481
19318
19906
14114
14727
15779
16982
17672
18482
19321
19925
14178
14760
15849
17036
17720
18604
19349
19946
14204
14846
15918
17062
17735
18661
19370
20070
14205
14868
16130
17135
17776
18675
19388
20080
14207
14979
16138
17145
17844
18683
19426
20105
14248
15045
16276
17185
17969
18701
19427
20125
14351
15048
16405
17186
18020
18839
19430
20145
14402
15049
16463
17264
18023
18863
19440
20184
14413
15064
16464
17286
18055
18881
19526
20285
14455
15115
16581
17362
18056
18994
19550
20312
14460
SECTION IV
ALPHABETICAL LIST OF BRITISH PATENTEES,
18601908
PATENTS enumerated in Section III. (1860 1908) alone are
considered. It is impossible to make a complete list of 1909
patentees at the time of writing.
The number and year of each patent are given after the name.
The year, as well as the number, is required to identify a British
Patent.
Abel, C. D.
Abelspies, J. F. C. .
Adams, A. .
Adams, H.
Addis, F. H. .
Aeroplane Co. .
Antoni, G., andU. .
Armitage, C.
Armour, J.
Avery, A. H.
Babillot, G.
Baden-Powell, B. F. S.
Barbe, P. E. S.
Barclay, J.
Baron, F. E., and M.
Bartelt, F. L. .
Bastion, J. B. .
Battey, S. B.
Bauer, H.
Baumann, A.
Bausset, A. de .
Beach, S. Y. .
Becht, L. A.
Bedell, B. H. .
Beenen, B. E. .
Beilharz, G.
A.P.
1124/69 Beins, H. .
9108/96 Bellens, C.
15987/97 Bennett, J.
4901/04 Benston, E.
15890/07 Berger, C.
27221/07 Bernasconi, J. .
25518/07 Bernd, E. von .
20739/99 Best, W. G.
18581/06 Birnbaum, E. J. W. P.
14038/84 Bjelovucic, M. S.
1446/04 Bleriot, L.
27771/08
,,
.
26821/03
,,
.
6443/06
Bliven, A. P.
.
9691/07
Blunt, A. H.
P.
5938/95
ft
.
25378/03
.
22384/08
.
17131/08
,,
.
3346/78
,,
.
15977/92
,,
.
20822/08
Bode, E. .
.
17913/99
Bontems, B.
.
2688/03
Booth, H. S.
.
15110/02
w
.
5312/08
-j
.
9767/05
Borgfeldt, N.
H.
26069/07
Boult, A. J.
.
9864/97
M
.
26617/08
Boulton, M. P. W.
. 3194/73
. 13959/06
. 3456/05
. 13747/04
. 19825/08
. 5977/08
. 4842/08
. 5220/08
. 22597/94
. 26884/07
. 2588/08
. 9069/08
. 20785/08
. 21497/08
. 6946/07
. 3637/99
. 8019/99
. 20115/00
. 346/01
. 9706/02
. 25444/03
. 11748/05
. 10004/07
. 5118/85
. 9346/94
. 12149/03
. 15613/05
. 23564/94
. 10757/06
. 28558/08
. 2489/66
82
AEKOPLANE
PATENTS
Boulton, M. P. W.
. 696/67
Cornu, J., and P.
19259/06
. 392/68
Couturier, C. E. F. .
2030/64
9 J
. 1005/68
Craddock, T. .
1982/67
V
. 1988/68
Craig, J
3360/89
M
. 574/75
Crawford, G. M.
14327/04
Bourcart, M.
. 18768/03
Crawford, E. L.
3929/04
Bowdens Patents
Syndi-
Crease, J. F. .
9106/92
cate, E. M. .
. 2216/08
Bowyer-Smyth, D.
Boyman, E. B. .
M. . 7442/99
. 3262/66
Dalton, P. ...
Davidson, G. L. 0. .
2479/07
12469/96
Brandl, A.
. 9804/06
1960/07
Brannon, P.
. 3974/77
Davies, C. J.
22273/07
Bratschie, A.
. 20169/03
Day, S. A. ...
23307/07
Brearey, F. W.
. 2376/79
Decazes, Yicomte
17859/93
Brennan, L.
. 27212/03
Degn, P. F.
21445/08
Brewer, E. G. .
. 3346/78
,, .
24148/08
Britain, W.
. 21952/08
Deixler, J.
27817/06
Brooman, E. A.
. 2030/64
,, . . .
14327/08
Brown, B.
. 17611/99
Delaurier, E. J.
4245/83
Brown, C. E. B.
. 9898/08
Delprat, A. ...
13502/04
Brown, D. S. .
. 411/72
Deming, H. A. .
3128/94
. 2346/73
Demoulin, A.
8628/08
Briincker, E.
. 2389/01
Diesel, E
7012/97
Buch, M. .
. 11188/07
Dippel, C
11699/06
Buckwalter, C. L.
. 15438/07
Donovan, J.
21618/08
Burgess, W. E.
. 2084/07
Dontre, A. F. J.
20694/08
Butler, J. W. .
. 1143/66
Dufaux, A., and H. .
3990/05
. 2115/67
Dufferin, H. J. .
14334/97
Dufwa, F. W. .
17877/08
Campa, P.
. 16030/08
Dunne, J. W. .
2808/08
Capel, T. J.
. 430/81
Eder, J
1831/07
Capone, F.
. 28590/07
Edwards, A. H.
4519/08
. 7129/08
Edwards, E.
2115/67
Carter, W. T. .
. 30932/97
Ellehammer, J. C. Hansen-
7377/06
Cave, J. O'C. .
140/75
Esnault-Pelterie, E. .
28034/07
Cervelli, J.
. 5977/08
221/08
Chantraine, J. .
. 5310/08
1258/08
Chanute, 0.
. 13372/97
8643/08
,,
. 15221/97
10528/08
Chappell, C. A.
. 21923/07
28026/08
Clarke, T. W. K.
. 28710/06
[
28027/08
,,
. 21290/07
j > * *
28028/08
,,
. 15924/08
Evans, W. E. .
21363/08
Cloud, J. W. .
. 27552/07
. 24441/08
Fadda, A. S.
27221/07
Cochrane, W. .
. 27027/02
Fairweather, W.
11763/08
Colquhoun, J. A.
. 17366/07
Fauber, W. H. .
4204/06
Connolly, B.
. 27805/07
,, .
24344/08
Cornelius, W. .
. 2589/84
Fawcett, J.
28321/08
ALPHABETICAL LIST OF BEITISH PATENTEES 83
Ferrero, M.
Filippi, A. P. .
Fleury, A. .
Flynn, P. J.
Fontaine -Moreau, P.
Comte de
Forbes, Sir C. S.
Forlanini, E.
Foster', J. S. .
Fraser, J. .
Fraser, J. E. .
Fredrikson, A. J.
Freville, E.
Friese-Greene Patents
Fronz, F. .
Frossard, J.
Fulton, F. 0. .
Gambin, A.
Garsed, J. L. .
A.,
Gathmann, L. .
Gaunt, J. .
Gedge,W. E. .
Geest, K. L. W.
Gibon, T. .
Gilbert, W. V. .
Goetjes, W.
Golby, F. W. .
Graham, C. K .
Green, W. A. .
Greene, W. Friese-
Griffiths/T.
Griffiths, W. J.
Groombridge, C.
H
Grosclaude, D. A. L.
Guattari, A., and C.
Haas, T. .
1593/08
Haddan, H. J. .
10034/94
19199/00
Haenlein, P. ...
821/72
3309/73
Hammant, W. .
23129/08
883/01
Hammond, E. V.
4835/07
Hansen-Ellehammer, J. C.
7377/06
2464/64
Hardacre, G.
18935/97
26827/08
Hardie, A. ...
19488/06
28273/08
11590/07
7603/05
Hare, E. H. .
19805/08
17156/07
Harper, W.
16626/06
7015/86
Hart, G. W. .
8627/08
10267/02
Harte, E
1469/70
19982/08
Hawkins, E. C.
1543/04
19677/08
Haylock, D., and E. A. .
7783/03
2396/73
Heeren, 0. ...
1683/08
16606/08
Henderson, A. C.
5118/85
1445/08
Hennebique, F.
26000/07
18158/07
Hepworth, E. N. Moles-
9251/02
worth- .
5739/97
620/06
20952/06
9594/07
1035/08
12013/08
23104/08
23316/08
24682/08
17367/00
18559/07
17014/08
2396/73
22943/08
14003/06
8316/06
13996/94
10819/94
1943/03
19347/03
16606/08
23595/08
10068/85
12349/90
16100/01
Herring, A. M. .
Hewitt, S. E. .
Hoernes, H.
Hofmann, J.
> . . .
Holle'A. A.
Homola, J.
Howard, W. F. .
HoweU, T. J. .
Huber, T
Hiickel, H.
Hullett, J.
Humbert, V. .
Humphreys, J. E.
Hunter, J. M.
Huntington, A. K. .
Hutchinson, F. W. H.
Hutchinson, W. N. .
Hyatt, T
15221/97
4659/07
8418/04
7919/94
11941/94
22011/95
23347/08
21514/06
21668/08
24701/03
12848/07
5787/04
568/68
9970/08
20916/08
21074/08
22238/08
2680/08
2808/08
1778/04
7491/07
7887/07
20032/91
1229/82
13241/00
Imray, J
1005/68
25723/02
21754/08
3872/92
Jensen, P. .
Johnson, J. H. .
Jombart, E.
5251/82
4245/83
1124/69
8681/02
Jones, J. M.
23833/04
a
2
84
AEKOPLANE PATENTS
Kalisch, E.
. 12514/00 McMullen, G. .
1788/04
Kaufmann, J. M.
. 473/67 Manker, C. A. .
23161/02
. 1525/67 Marinakis, A. .
21477/04
Kay, M. .
16/07 Mark, W
22209/08
,, ...
. 7205/08 Marriott, F.
2827/69
Kerkhove, A. H. van de
. 3561/81 Marshall, J.
10239/95
Kerwat, G.
. 5471/08 ...
9734/97
Klupathy, E. .
. 19825/08 Masey, P. E. .
412/68
Knapper, G.
. 24807/04 Mastin, J. ...
3456/05
Kober, M. .
. 18877/08 Maughan, B. W.
4585/82
Koch, G. .
. 5251/82
1552/83
16269/93 Maul, A
10757/06
Kosztovits, O. I.
. 5942/84 Maxim, H. S. .
10359/89
Krakow, A. K. E. A.
. 13499/02 ,, ...
16883/89
Krauss, E.
. 18663/97 ,, ...
19228/91
,, ...
10852/93
Laitte, L. B. de
. 4043/07 ...
10620/97
Lake, A. W. .
. 1229/82 ...
15748/03
Lake, S. .
. 11763/08 ...
3120/04
Lanchester, F. W. .
. 3608/97 ...
20038/08
. 17935/05 May, E. E.
19264/94
>
. 9413/07 Mercer, I. E. .
23798/08
j .
. 9413a/07 Michel, M.
1769/69
La Pauze, A. de
. 430/81 Middleton, H. .
9725/88
Larkin, G. F. .
. ,2216/08 ...
21885/91
Lautenschlager, P. E.
. 15128/94 ...
9775/93
Lazarowicz, J. .
. 7179/03 ...
21680/02
Lebaudy, P., and P. .
. 878/03 ...
1436/06
Learer, M. .
. 3691/01 Mielcarek, W. S.
7632/08
O "
Lehmann, E.
. 17371/00 Millet, F. T. .
5199/89
Lentz, H. .
. 13959/06 Mills, F. E.
3128/94
Le Eond, L. J. J. B. .
. 10968/98 Mockton, E. H. C.
9fin/74
. 14145/02 Moles worth-Hepworth,E.N. 5739/97
Lester, E. J.
. 5220/08 Molinari, J.
5977/08
Lindkvist, E. E.
. 16484/07 Mond, E. L. .
5949/08
. 16941/08 Montgolfier, P. de .
1747/06
Lipkowski, J. de
. 11616/02 Montjustin, E. d'Eque-
Long, L. .
. 23380/03 v iiley ....
17370/08
Lorenzen, 0.
. 13809/08 Moore, E. F. .
13311/90
Lorenzo, J. di .
. 27221/07 , f ...
6/95
Los Olivos, E. 0. de .
. 7271/95 Morgan, F. S. .
3186/05
Lostalot, H. de .
. 12848/07 Motorluftschiff-Studienges
4788/08
Lucas, E. .
. 2353/07 Mott, S. D.
24587/02
Moy, T
3238/71
McOurd, W. A. .
. 8966/07 ....
2808/74
Macdonald, T. .
. 4125/95 ....
15221/97
McLean, E.
. 13315/08 ....
16856/01
Macleod, M. C. .
. 1763/04 Mumford, E. E.
3214/05
Macler, C. .
. 19199/00
15698/05
ALPHABETICAL LIST OF BRITISH PATENTEES 85
Murray, T. B. .
9251/02
Porter, J. E. .
4245/07
Murray, W. E. .
29308/06
,, .
15590/07
Mutti, A
14367/04
...
21261/08
,, ....
5949/08
Powell, B. F. S. Baden- .
26821/03
i>
6443/06
Nelson, J. E. .
2229/67
i>
9691/07
Nmethy, E.
15403/02
Preidel, W.
26891/04
Nesmond, P. C.
2464/64
Neyen, E. ...
84/08
Quartermain, W. . ,
2339/84
Nial, M
7059/07
Quentin, A. A. H.
3872/92
Nicholl, G.
1066/01
Noble, W. H. .
2827/69
Eabbat, C. F. .
1598/60
Eaggett, J. J. .
23459/07
Oetling, 0. ...
10819/94
Eebikoff, W. .
6502/06
Ortlepp, J. C. .
1064/93
Eeden, U. von .
9119/07
Osselin, A. F. .
728/71
Eedfern, G. F. .
7015/86
Otto, E.G. F., and E.G. F.
14737/89
Eenner, E., M., L., and A.
2803/06
Owen, E. G. .
9193/85
Eidley, J. D. .
777/74
Eoe, A. V.
26099/06
Palacios, E. de. .
13996/94
Eoeper, C. H. 0.
9390/95
Parker, T.
9506/04
Eoheim, E.
8320/01
Peache, G. A. .
24617/08
Eoots, J
3657/96
Pelterie, E. Esnault-
28034/07
J. D.
7156/07
.
221/08
Eoss, W.M. .
2040/70
.
1258/08
Eoux, E
11719/03
.
8643/08
.
10528/08
Sampson, D.
16698/02
.
28026/08
Saward, J.
8435/07
.
28027/08
.
7370/08
.
28028/08
Schmid, E.
20822/08
Penkala, E and E. .
21498/08
Schroeder, F. W.
17855/08
Pennington, E. J.
25050/95
Schiilke, J.
10961/07
17119/96
Schiitz, S
23618/08
Perks, E
22809/08
Scott, B. D., and W. E. .
24247/07
Peugot, A. ...
12848/07
Seiberi, J
11982/02
Phillips, A. ...
28119/08
Shadbolt, L. P. .
8842/08
Phillips, H. F. .
13768/84
Shanks, J.
7802/05
,, . .
20435/90
Shil, E. E.
3238/71
,, .
13311/91
Silverston, A. E.
20433/08
Phillips, J. S. .
2420/61
Simko, J
8320/01
Piffhard, H. H. .
11155/08
Simms, F. E. .
25716/96
Piguet & Co.
10034/94
> ...
6320/97
Pilcher, P. S. .
9144/96
> . . .
20368/00
Placet, P. E. .
21329/99
,, ...
25395/05
Platts, W
3456/05
,, ...
15796/07
Pomianowski, E. A. .
19822/07
Sjostrom, P. ...
2264/83
Ponton d'Amecourt, G. L.
Skouses, P. ...
11905/08
M., Viscount de
1929/61
Smart, G. E. .
12503/84
Porak, W
15960/01
Smith, G. P. B. . .
27812/08
86
AEROPLANE PATENTS
Smyth, D. M. Bowyer- .
7442/99
Tzimbalist, I. 0.
.
W.
1392/67
Smythies, J. K.
561/60
Vaniman, M.
.
*
2504/67
Vergara, A.
.
99
4151/75
Villeneuve, A. H. de
99
34/82
Visoly, S. H. de
.
7/84
Vogt, H. C. de .
.
Snyers, T
3561/81
Yojacek, L.
.
Soc. A. Peugot, T. Huber &
Co
12848/07
Waddy, S. D. .
Solon, M. F. .
8118/08
.
Soul, M. A.
821/72
Waelde, J.
.
South, W. A. .
13241/00
.
,,
25723/02
Walker, J. C. ,
.
Spencer, C. G. .
1178/68
Walker, W. G. .
.
Stark, T. A.
1064/93
Wallace, G.
.
Steinhaus, E. E.
28015/08
Wallin, B. H. .
.
Stevens, C.
1598/60
.
Stevenson, E. .
4871/80
Watson, P. A. .
.
Stewart, J.
20702/03
Webb, H. B. .
.
Strata, J
27408/07
Weiss, J. .
.
Sturgess, G-., and 0. .
26924/08
Wellner, G.
.
Swingle, E. L. .
19995/01
Wenham, F. H.
.
Westlake, A. J.
.
Taaffe, E. .
26414/06
White, J. D.
,, .
25295/07
Whitehead, G. .
Tacquin, A. ...
24928/08
Wilson, E. F. .
i
Tarbe, J, .
19424/00
Wilson, G.
t
Tarczal, C.
8320/01
Winegarden, A. van
.
Tasker, E. E. .
4033/07
Winsch, J.
.
Taylor, A. G. .
7802/05
Wirth,F. .
,
F.W. T.
23208/08
Wisniewski, V. .
.
Tellwright, W. .
8118/08
Wolf, Carl, Baron vo
11
Thayer, E.
21656/08
Wondra, F.
.
Thomass, F. W.
7894/07
Wood, F. .
.
Thompson, W. P.
16269/93
Worswick, A. .
.
.
13996/94
Wright, J. M. .
.
15798/04
Wright, W., andO.
.
.
27312/06
ii
.
.
2651/08
.
.
25315/08
Wunderlich, A.
.
Tribelhorn, A. .
21092/08
Wynne, W. E. .
.
Tuckfield, C. .
18862/01
Turnbull, W. E.
8868/06
Zizka, E. .
.
SECTION V
PATENTS GRANTED IN THE U.S.A. RELATING TO FLYING MACHINES FROM
THE BEGINNING OF 1896 TO THE END OF 1909
THE date following the number of the patent is that on which the
patent was issued.
;May 15/06
May 22/06
; July 24/06
:July 31/06
;0ct. 30/06
:Dec. 18/06
;Jan. 15/07
:Feb. 5/07
:Feb. 12/07
:Feb. 19/07
Mar. 12/07
Apr. 9/07
:Apr. 16/07
:Apr. 30/07
: Apr. 30/07
:Apr. 30/07
:Apr. 30/07
June 4/07
:June :4/07
M. V. Coutinho .
556,621 :Mar. 17/96
L. P. Mouillard .
582,757: May 18/97
J. D. Graybill
592, 704: Oct. 26/97
T. Leibbrand
600,878 : Mar. 22/98
F. A. Jone .
605,579 : June 14/98
J. T. Rice .
606,942 : July 5/98
T. J. Brown .
610,843 : Sept. 13/98
S. Otis .
64 1,793: Jan. 23/00
G. T. Woglom
648, 544: May 1/00
L. E. Roze .
648,634: May 1/00
S. Cairncross
653, 615: July 10/00
J. H. Dillon-Greg.
666,266: Jan. 22/01
E. M. Farr .
678, 114: July 9/01
W. J. Bell .
693,943 : Feb. 25/02
S. J. Conyne
698,634: Apr. 29/02
J. T. Rice .
704,375 : July 8/02
I. Lancaster .
706,832: Aug. 12/02
T. Gibon
7 10,266: Sept. 30/02
O. A. Kaehler
727,377 : May 5/03
G. D. Shultz
729,800: June 2/03
T. Gibon
730, 107 :June 2/03
I. I. Morris .
737,947 : Sept. 1/03
C. E. van Deventer
741,568 : Oct. 13/03
A. G. Bell .
757,012: Apr. 12/04
C. F. Morrison
761, 053: May 24/04
S. M. Craig .
766,021 :July 26/04
H. de Walden and
H. Knudsen
769,034: Aug. 30/04
G. W. Thompson .
769,721 : Sept. 13/04
A. G. Bell .
770,626 : Sept. 20/04
A. P. Criswell
785,717: Mar. 28/05
I. Lancaster .
785,740 : Mar. 28/05
G. McMullen
792,154: June 13/05
A. H. Friedel
804,593 : Nov. 14/05
A. L. Platt .
813,519: Feb. 27/06
B. O'Kane .
O. and W. Wright
J. Hofmann .
J. B. Kramer
0. Chanute .
G. M. West .
G. G. Schroeder .
W. Morgan .
A. McCarthy .
H. M. Bellows .
A. and H. Dufaux
A. Brandl .
A. P. Bliven .
B. F. Mickley
M. Nial .
B. Connolly .
T. Orgren .
1. Gruber .
R. Lewitz
A.G.BellandH.P.
McNeil .
L. D. Merrich
W. Phillips .
F. E. Felts .
J. H. Wilson
W. H. Cook .
F. M. Mahan
E. M. La Penotiere
D. L. Moorhead .
A. O'Brate
J. U. de Uherkocz
J. W. Eoshon
820,938
821,393
827,017
827,157
834,658
838,673
841,581
843,476
844,172
844,771
846,830
849,971
850,616
851,683
: 851,895
852,221
852,292
855,945
856,073
856,838
856,895
856,910
857,166:
859,274 :
860,447
861,133
861,740
865,419
866,672
866,673
867,525
868,038
868,039
868,488 :
: June 11/07
:June 11/07
: June 11/07
: June 18/07
: July 9/07
:July 16/07
: July 23/07
: July 30/07
: Sept. 10/07
: Sept. 24/07
: Sept. 24/07
:0ct. 1/07
:Oct. 15/07
:0ct. 15/07
:0ct. 15/07
88
AEROPLANE PATENTS
J. D. Pursell
. 869,019 : Oct. 22/07
M. G. Adams
B. Connolly .
. 870,936: Nov. 12/07
C. J. Lake .
L. Gathmann
. 871,926: Nov. 26/07
E. G. Dressier
F. B. Ashley
. 872,778: Dec. 3/07
W. S. Eomme
G. Halliday .
. 873,542: Dec. 10/07
A. P. Filippi .
F. Wondra .
. 876,125: Jan. 7/08
C. E. Culver .
G. H. Benedict ,
, 879,848: Feb. 25/08
J. Means
W. Halle
, 881, 184: Mar. 10/08
i>
E. E. Warner
, 88 1,836: Mar. 10/08
G. Whitehead
, 881,837: Mar. 10/08
E. L. Drake .
, 882,189: Mar. 17/08
P. F. Degn .
T. J. Whalem
, 882,435: Mar. 17/08
J. J. Eekar .
E. E. Ernst .
882,457 : Mar. 17/08
G. W. Thompson .
H. J. Cragun
883,090 : Mar. 24/08
J. Potts
W. Pars
883,565: Mar. 31/08
A. Beriozze .
M. Vaniman .
884,432: Apr. 14/08
W. A. McCurd .
B. Guthrie .
886,122: Apr. 28/08
J. H. Eogers
M. B, Sellers
886,159: Apr. 28/08
J. H. Wilson
C. J. A. Fiesse
887,931: May 19/08
H. A. Orme .
F. I. Judson .
888,618: May 26/08
L. J. Brown .
F. E. Sweeny
889,062 : May 26/08
P. V. Wadleigh .
D. D. Beatty
889,502 : June 2/08
M. B. Sellers
O. K. Chance
890,215: June 9/08
J. Seiler
S. von Wiszcewsky
890,483: June 9/08
L. Euppin
E. E. Mumford .
892,380 : June 30/08
A. A. Zalondek
C. A. Moore and
C. E. Bannihr
E. Barrow .
892,606 : July 7/08
W. Sinclair .
E. J. Pennington .
893,647: July 21/08
S. H. Gilson .
E. E. Warner
893,887 : July 21/08
P. F. Degn .
A. Y. Wilson
897,504 : Sept. 1/08
D. C. Dorman
W. Gordon .
897,738 : Sept. 1/08
W. E. Turnbull .
D. L. Wolf .
898,081 : Sept. 8/08
A. E. Malasomma
E. E. Steinhaus .
899,350 : Sept. 22/08
W. H. Martin
A. H. Friedel
900,844: Oct. 13/08
J. Means
H. B. Schiller
901, 486: Oct. 20/08
A. W. Eeinoehl .
J. and P. Cornu .
902, 859: Nov. 3/08
C. W. Cheney
J. B. Macduff
905,547 : Dec. 1/08
J. S. Letts .
T. H. Gignilliat .
906,406 : Dec. 8/08
A. E. Mueller
H. S. Booth .
907,120: Dec. 22/08
D. S. Foster .
907,310: Dec. 22/08
S. W. Applegate . !
G. A. Metcalf
908,734 : Jan. 5/09
A. H. Friedel . !
O. and W. Wright
908,929 : Jan. 5/09
J. Suter . . {
J. Bernard .
910,488 : Jan. 26/09
L. Felker . . {
H. Bea .
910,773: Jan. 26/09
S. S. Williams . i
W. D. Valentine .
911,784: Feb. 9/09
J. Means . . i
C. J. Lake .
913,517 : Feb. 23/09
A. W. H. War-
H. Mueller .
914,969 : Mar. 9/09
shawsky . .
M. Strzelecki
916,626 : Mar. 30/09
. 917, 513: Apr. 6/09
. 918,336: Apr. 13/09
. 919,834 : Apr. 27/09
. 920,085 : Apr. 27/09
. 920,554: May 4/09
922,264: May 18/09
922,7 10: May 25/09
922,711: May 25/09
922,712: May 25/09
922,713: May 25/09
922, 756: May 25/09
922,952: May 25/09
922,972: May 25/09
923,075 : May 25/09
923,936: June 8/09
924,813 : June 15/09
924,833 : June 15/09
926,159: June 29/09
926,593 : June 29/09
926,804 : July 6/09
926,913: July 6/09
927,289 : July 6/09
927,605 : July 13/09
927,815: July 13/09
929,362: July 27/09
93 1,026: Aug. 17/09
931,966: Aug. 24/09
933,548 : Sept. 7/09
934,394 : Sept. 14/09
934,717: Sept. 21/09
934,771 : Sept. 21/09
935,039 : Sept. 28/09
935,384 : Sept. 28/09
935,766 : Oct. 5/09
935,862 : Oct. 5/09
936,303: Oct. 12/09
937,250: Oct. 19/09
937,381: Oct. 19/09
937, 587: Oct. 19/09
939,651: Nov. 9/09
940,866 : Nov. 23/09
941, 896: Nov. 30/09
942,629 : Dec. 7/09
942, 691: Dec. 7/09
943, 120: Dec. 14/09
944,301 : Dec. 28/09
SECTION VI
ALPHABETICAL LIST OF U.S. PATENTEES,
18961909
THE numeral following the name is the number of the patent.
An American patent can be identified by the number alone.
Adams, M. G. .
Applegate, S. W.
Ashley, F. B. .
Bannihr, C. E. .
Barrow, E.
Bea, H. .
Beatty, D. D. .
Bell, A. G.
Bell, W. J.
Bellows, H. M. .
Benedict, G. H.
Beriozze, A.
Bernard, J.
Bliven, A. P. .
Booth, H. S. .
Brandl, A.
Brown, L. J.
Brown, T. J.
Cairncross, S.
Chance, O. K. .
Chanute, 0.
Cheney, C. W. .
Connolly, B.
Conyne, S. J.
Cook, W. H. .
Cornu, J., and P.
Coutinho, M. V.
Cragun, H. J. .
Craig, S. M.
917,513
939,651
872,778
653,615
890,215
834,658
936,303
852,221
870,936
698,634
860,447
902,859
556,621
883,090
766,021
Criswell, A. P.
Culver, C. E.
Degn, P. E.
931,026
892,606
Deventer, C. E. Van
910,773
Dillon-Greg, J. H.
889,502
Dorman, D. C. .
757,012
Drake, E. L. .
770,626
Dressier, E. G. .
856,838
Dufaux, A., and H.
693,943
844,771
Ernst, E. E.
879,848
923,936
910,488
850,616
Farr, E. M.
Felker, L. .
907,120
Felts, F. E.
~RS'p D T A
907,310
J? l"olS", \J, U xx
849,971
Filippi, A. P. .
926,804
610,843
Foster, D. S. .
Friedel, A. H. .
Gathmann, L. .
Gibon, T. .
Gignilliat, T. H.
Gilson, S. H. .
Gordon, W.
Graybill, J. D. .
Greg, J. H. Dillon-
Gruber, I.
Guthrie, B.
785,717
922,264
922,756
934,394
741,568
666,266
934,717
882,189
919,834
846,830
882,457
678,114
942,629
857,166
887,931
920,554
937,587
804,593
900,844
940,866
871,926
710,266
730,107
906,406
933,548
897,738
592,704
666,266
855,945
886,122
LOAN PERIOD 1
4"
DEPARTMENT
lbr arv 642-3403
3
LIBRARY USE
Th.s book is due before closing time on the last date stamped below
DUE AS STAMPED BELOW
FORM NO. DD 6A, 12m, 6'76 UNIVERSITY OF CALIFORNIA, BERKELEY
BERKELEY, CA 94720
LD 21-100m-7,'39(402s)
VC |94(R
THE UNIVERSITY OF CAUFORNIA LIBRARY