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 CIHM/ICMH 
 
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 Series. 
 
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 C 
 
 I 
 
Technical and Bibliographic Notes/Notes techniques et bibliograph 
 
 iques 
 
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 the usual method of filming, are checked baiow. 
 
 D 
 
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 Le ti 
 
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Ti2e"0ptimate 
 Power Hammer. 
 
 Patented in the United States, Canada and Endand. 
 
 WM. ti. IvAW, 
 
 INVENTOR. 
 
 MANUFACTUKED HY 
 
 THE CENTRAL BRIDGE AND ENGINEERING COMPANY (LTD). 
 PETERBOROUGH, ONTARIO, 
 
 CANADA. 
 
 ! 
 
ii 
 
 Optimates 
 
 JJ 
 
 This invention is the result of thirty-five years ex- 
 perience, close observation and special study into the principal 
 defects in the forging of metals by the different kinds of hammers 
 in use, both on this continent and in Europe, whether operated by 
 steam, air or otherwise. 
 
 In the introduction of this Hammer it is intended 
 to overcome the principal defects in previous inventions of Power 
 Hammers and produce a machine that, whilst under the control 
 of one man, will g e blows of varying force, without any change 
 in the number of blows given. Also give the full length of 
 stroke, when required, for any thickness of metal the Hammer 
 will admit, all the operations being under easy control by one 
 person. Besides ; the normal position of the ram over the anvil 
 when at rest, can be set any height required, enabling the 
 workman to place the metal on the anvil before setting the 
 Hammer in motion. 
 
 
 I 
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I 
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 1 he plan generally adopted in previous inventions of 
 Power Hammers— driven by belts to give motion to the ram- 
 has been to have, either a tightening pulley acting on the driving 
 belt, or a friction clutch, to be thrown in or out of contact, both 
 systems generally operated by the foot of the workman, though 
 treadle attachments connected to the tightner or friction clutch. 
 
 In the hrst case the workman presses the tightner 
 against the belt, which sets the Hammer in motion. The tighter 
 he presses the belt to the pulley, the greater the number of 
 revolutions are made (until the maximum number is reached) and 
 the heaviest blows given off. Light blows are obtained by 
 allowing the belt to slip on the pulley, more or less, at the same 
 time decreasing the number of blows, which are also given very 
 irregular and uncertain in force. Therefore the heaviest blows 
 are given when the hammer is running ut its maximum velocity 
 and light blows when running slow, a result contrary to general 
 principles in the forging of metals. 
 
 The clutch operation produces similar results to the 
 belt. Besides; in these same Hammers the velocity of the ram 
 in its upward and downward motion is nearly equal. 
 
 With the "Optimates" Hammer the velocity 
 
 of the ram in its downward stroke is considerably accelerated 
 thereby giving a much sharper and heavier blow, resulting in a 
 nearer approach to the action of a blow stricken by a blacks'lnith's 
 
hammer than has ever before been accomplished with a " Power 
 
 Hammer." 
 
 These *'Optimates" Power Hammers have 
 
 several novel advantages over the Steam Hammer in the fonnno- 
 of springs, files, hay forks, spades, shovels, axes, and die work ; also 
 in light stamping, planishing silver and copper, flattening, rivet- 
 ting, welding, tilting steel and general blacksmith work. They 
 do not require any cosdy boilers or extra attendant to run them. 
 They can be run by belt or rope from the line shaft. At the 
 same time the first cost is much less. 
 
 Another instance of great importance is the follow- 
 ing ; In the case of a steam hammer having a stroke of say 
 twelve (12) inches, if the operator wishes to forge a piece of 
 metal three (3) inches thick, the fall of the ram would be but nine 
 (9) inches unto the metal, giving a much lighter blow than would 
 have resulted under the full fall of (12) twelve inches. 
 
 With an '' Optimates " Hammer, having a fall 
 
 of twelve inches, the ram can be made to give the full length of 
 stroke during all operations, or the fall of the ram or the force 
 of the blow can be changed at the wull of the operator". The 
 blows can be varied in force between several thousand pounds 
 and i. few ounces and a greater number of blows obtained in 
 the same period of time than can be got from a Steam Hammer. 
 
1 he Hammer can also be set to give any desired 
 force of blow continuously. 
 
 All the changes to be made, for the different thick- 
 ness of metal, length of stroke and force of the blow can 
 be made almost instantaneous whilst the hammer is in motion 
 and without the operator leaving the anvil. 
 
 1 he riammer can be operated to give any length 
 of stroke desired between " Full " stroke and " Zero " or it can 
 be made give full length of stroke for any thickness of metal 
 to be operated upon, from " tin foil " up to the full thickness 
 the hammer is designed to receive or forge. 
 
 It at any time it is found necessary to use dies 
 deeper than those in ordinary use, the ram would require 
 rising, perhaps, several inches. This can be met by unscrew- 
 ing the lower nut below the cushion and screwing up the top 
 nut above the cushion until the proper height is reached. Both 
 nuts are again screwed up until the necessary amount of elasticity 
 in the cushion is obtained. 
 
 1 he riammers are strongly built, compact and of neat 
 design, the different parts being made from the most suitable 
 materials for the work they have to do, All the wearing surfaces 
 are large. In fact the whole of the machines are designed 
 for wear and heavy work and are warranted to give better 
 results than any other "Power Hammer" in the market. 
 
Five Standard Sizes will be kept in stock, the 
 
 weights of the rams being 6ott)., 8ott>., lootb., i2ott)., and i5ott). 
 
 Heavier or Lighter sizes will be made as required, 
 from lolb. to looolb. weight of ram. 
 
 The i5olb. Hammer is the most suitable for 
 
 general blacksmith work and would be a profitable tool in any 
 shop having two or more forges. 
 
 These Hammers are not merely useful for ^he 
 roughing out of work but any piece of work however fine and 
 delicate, can be finished under the hammer with greater accuracy 
 and less time than it can be done by any other means. 
 
•)•) 
 
 
\Jc^\ . --i /, cz^ . ^ 
 
 - -, ^E. »_ 
 
 THE REVIEW PRIN'ING AND PUBLISHING COMPANY, LTD. 
 
 i'ETEHUOKOLGH, UNT. 
 
 — — • .?,— »