College and Research Libraries By M O R T I M E R T A U B E The Planning and Preparation of the Technical Information Pilot and Its Cumulative Index Dr. Taube is chief, Science and Tech- nology Project, Library of Congress. * s P A R T of its w o r k f o r the Office of , / J L N a v a l Research, the Science and T e c h - n o l o g y P r o j e c t of the L i b r a r y of Congress abstracts research reports submitted by g o v - ernment contractors, and issues these ab- stracts on catalog cards and in a loose-leaf bulletin. Neither the bulletin nor the cards is available f o r general distribution, but the method used in their preparation may readily be adapted and used by other scien- tific information agencies. In planning the preparation of the Tech- nical Information Pilot, and its cumulative index (hereafter referred to as T I P and T I P I n d e x ) , the Science and T e c h n o l o g y P r o j e c t of the L i b r a r y of Congress was able to build upon the successful experience of t w o other L i b r a r y of Congress publications, namely, the Cumulative Catalog of Library of Congress Printed Cards, and the Monthly Checklist of State Publications. A n account of the preparation of the Cumu- lative Catalog is contained in a paper by C . D . G u l l of the staff of the Science and T e c h n o l o g y P r o j e c t , w h i c h was read at the fall meeting of the A m e r i c a n Chemical Society, Sept. 16, 1947. L o a n copies of this paper are available f r o m the project and w i l l be until the paper is published. E x c e p t f o r administrative reports in the files of the L i b r a r y of Congress, n o account exists of the method of preparation used f o r the Monthly Checklist of State Publications. F o r these publications, copy f o r pages is produced by m o u n t i n g printed or typed cards. T h e Cumulative Catalog makes use of a 3 " x 5 " L i b r a r y of Congress catalog card f r o m w h i c h the leading has been re- m o v e d in printing so that the finished pages w i l l not have the white spaces w h i c h char- acterize ordinary L i b r a r y of Congress printed cards. O n the other hand, the Monthly Checklist is prepared f r o m 4 " x 6 " typed cards. Experiments w i t h various typed surfaces have shown that an attrac- tive t w o - c o l u m n page can be prepared by typing in a 4 " x 5 " area, leaving one inch of the card f o r taping on the right margin. I B M proportional spacing typewriters are used and provide a text surface of u n i f o r m blackness w h i c h is ideal f o r reproduction by photo-offset. T h e preparation of T I P and its index posed several problems not faced in the preparation of either of the publications re- ferred to above. T h e Cumulative Catalog could be planned on the basis of an existing supply of 3 " x 5 " printed catalog cards. T h e Monthly Checklist, being n o n c u m u l a - tive, needed only one typed card f o r each m o n t h l y issue and the library unit pre- paring the Monthly Checklist had no need f o r 3 " x 5 " cards. O n the other hand, the Science and T e c h n o l o g y P r o j e c t needed multiple cards in order to prepare the c u m u - 202 COLLEGE AND RESEARCH LIBRARIES lative index and a dictionary catalog of the material in its possession; and it needed subject headings on the cards in order to be able to file the cards properly and to cumulate them satisfactorily f o r the quar- terly indexes. H e n c e , it was necessary to design a basic typed card w h i c h could be used : ( i ) f o r the production of an abstract bulletin, ( 2 ) f o r the production of cumula- tive indexes, and ( 3 ) f o r the production of 3 " x 5 " catalog cards to be used within the project and f o r distribution to other libraries which might desire to integrate catalog cards produced by the Science and T e c h n o l o g y P r o j e c t with their o w n cata- logs. It was further necessary to design the cards so that the subject headings w o u l d appear on the individual cards but not on the pages. In designing this card, w e began w i t h the demonstrated adequacy of a 4 " x 5 " typed surface f o r producing an attractive and legible t w o - c o l u m n page. Experiments in- dicated that this 4 " x 5 " area was adequate in most instances f o r a f u l l catalog entry and a complete abstract, but if subject head- ings are placed in this space, the space available f o r the abstract is cut seriously enough to require a large percentage of t w o - card entries. T h e answer to this problem was discovered by recognizing that the area of the card which was overlapped and taped R U29 Esso Labs., Standard Oil Development 1. Combustion Co; FUNDAMENTAL STUDIES OF COMBUSTION. (Spark Russel, B. B., 3rd and H. L. Thwaites. Rept. lor ignition) June 7-Aug. 6, 1947. 10 p. incl. diagrs. Unclassified. (N6orl-109, Rept. No. 28) Reproducibility of the Ignition system output was studied using lsobutane-alr mixtures. Successful Ignition was obtained at 28 mm. Hg absolute pressure with a 3.5% volume lsobutane-alr mixture. V U30 Federal Telephone It Radio Corp. BROAD1 BAND ANTENNA SYSTEM BIBLIOGRAPHY. SEC- TIONS 1-7. Brown, Carl R., George F. Robinson, and Sanford Hersh field, n. d. 1 vol. Unclassified (W36-039-SC-32111) The sections comprising this bibliography are, Section I Appendix; 2, alphabetical Index to the war reports which are in section 3; 3, unclassified »•* reports presented by type of equipment or r- 4, antenna books; 5, alphabetical Index * articles which are In section 6; 6. presented by type of equlpmep* antenna patents. p U26 Analysis Div., Air Matet GERMAN PROPELLERS. Kadel, E. A Iv, 73 p. incl. Ulus. Unclassified (Sut No. F-SU-1145-ND) 1. Broad-band antennas _ Bibliography P U26 (Card 2) Installed only on Jumo engines. The propeller is very bulky and heavy; the hub shell alone weighs twice as much as a VDM hub for the same application. The Argus propeller Is ingeniously designed but gives the Impression of being too involved for the results obtained. The mechanical type has the advantage of full feathering and constant speed Incorporated In one unit. The type with hydraullcally operated control Introduces the troubles of an oil operated system. 1. Propellers (Aerial) — Germany The general mechanical features are given three following German aircraft propellers, (Verelnigte Deutsche Metallwerke), Junkers, Argus. The VDM propeller is versatile, well k and well constructed. The rate of pitch change one degree per second is inadequate for a propel, on a high performing airplane. Service requlrem» are easily met. The VDM spinner and the locating plate are made of metal sheeting, the plate being attached to the hub by bolts screwed Into holes drilled In the hub itself. Junkers variable-pitch propellers are hydraullcally operated and were (Continued on card 2) v .rfFLEX AND -xxige, Sherwood H. j l e d (Pro). TED no. j c high altitude spark plug adapters ^achable leads were conducted to -conformance and suitability for Naval a i r - service use. The results obtained Indicate that * adapters and leads are not suitable for naval aircraft use, being unsatisfactory in the following respects: installation.and maintenance, durability, high potential, and airtlghtness. 1. Spark plugs — Adapters Figure I JULY, 1948 203 in producing the page could be utilized f o r the subject headings in preparing the card. T h u s , the basic card measuring 4 " deep and 6 f " w i d e w a s designed. O f the w i d t h , was reserved f o r the margin, 4 § " f o r the catalog entry and abstract, and i f " f o r sub- ject headings and other tracings. Perhaps the clearest picture of the vari- ous problems and their solutions can be given by an actual account of the steps necessary to produce both the 3 " x 5 " cards and the finished p a g e : 1. Entry, abstract, and subject headings are typed on a 4 " x 6 § " card (shown as the overlaid card in Fig. 1 ) . 2. Six 4 " x 6 § " cards are mounted on a cardboard without overlapping, and reduced photographically 25 per cent. 3. A multilith plate is prepared from the reduced negative and the plate is then run off on card stock to produce six 3 " x 5 " cards per sheet (the sheet is shown as background in Fig. 1 ) . 4. T h e sheets are cut and the individual 3 " x 5 " cards are ready for distribution. 5. T h e original typed cards are removed from their mounting and remounted. In this remounting the subject headings are over- lapped like shingles and the cards are closed up so that all unnecessary white spaces are eliminated. A f t e r the cards are mounted in this manner, a heading, date, and page num- ber are added. In preparing this page, the adjustable lining device invented by the G o v - ernment Printing Office and described in M r . Gull's paper is used (illustrated in Fig. 2 ) . 6. T h e cards mounted in page form are reduced by 35 per cent and a multilith plate is prepared from which pages of the abstract bulletin are run off (a finished page is shown in Fig. 3 ) . 7. Every three months a cumulative index to the abstract bulletin is prepared by mount- ing the 3 " x 5" cards and overlapping both the subject headings and abstracts. Every entry is given under all the subject headings which appeared on the original card (as shown in Fig. 4 ) . A l t h o u g h the initial purpose in placing the subject headings at the side was to Figure 2 solve a make-up problem, the card, w h e n designed, exhibited certain advantages over the ordinary catalog card w h i c h places the subject headings at the bottom of the card. In the first place, the subject headings on the card designed f o r T I P stand out boldly and prominently. Second, the position on the side of the card makes it possible to file the cards under the various subject head- ings by checking them or circling the n u m - bers, thus eliminating an extra typing operation. T h e r e is sufficient r o o m f o r adding tracings f o r secondary entries, such as personal authors, editors, etc. Finally, something should be said concern- ing the symbol w h i c h appears at the begin- ning of each entry prepared f o r T I P , e.g., 204 COLLEGE AND RESEARCH LIBRARIES TECHNICAL INFORMATION PILOT January 12, 1948 one or several balloons; use of eight brake parachutes, use of single large parachute suspended above gon- dola by all balloons, use of eight standard parachutes suspended by two balloons each, and use of eight standard parachutes each syspended by ten balloons. The last method is suggested as offering the greatest margin of safety because all balloons are attached to the apex of the parachutes. R U28 Aeronautical Engine Lab., Naval Air Experimental Station, Phila. TESTS OF TITEFLEX HIGH ALTITUDE SPARK PLUG ADAPTERS AND UNIMOLD DETACHABLE LEADS. Dodge, Sherwood H. Aug. 7, 1947, 9p. illus. Unclassified (Proj, TED no. NAM-04531) Tests of the Titeflex high altitude spark plug adapters and unimold detachable leads were conducted to determine conformance and suitability for Naval air- craft service use. The results obtained indicate that the adapters and leads are not suitable for naval aircraft use, being unsatisfactory in the following respects: installation and maintenance, durability, high potential, and airtightness. R U29 Esso Labs., Standard Oil Development Co. FUNDAMENTAL STUDIES OF COMBUSTION. Russel, B. B., 3rd and H. L. Thwaites. Rept. for June 7-Aug. 6, 1947. 10 p. incl. diagrs. Unclassified. (N6ori-109, Rept. No. 28) Reproducibility of the ignition system output was studied using isobutane-air mixtures. Successful ignition was obtained at 28 mm. Hg absolute pressure with a 3.5% volume isobutane-air mixture. V U30 Federal Telephone fc Radio Corp. BROAD BAND ANTENNA SYSTEM BIBLIOGRAPHY. SEC- TIONS 1 - 7 . Brown, Carl R., George F. Robinson, and Sanford Her sh field, n. d. 1 vol. Unclassified (W36-039-SC-321I1) The sections comprising this bibliography are, Section (Appendix; 2, alphabetical index to the war reports which are in section 3; 3, unclassified war reports presented by type of equipment or subject; 4, antenna books; 5, alphabetical index to the antenna articles which are in section 6; 6, antenna articles presented by type of equipment or subject; 7, antenna patents. ZZ U31 Engineering Div., Air Materiel Command. ORGANIZATION AND DIRECTORY CHARTS. Sept. 15, 1947, 1 vol. Unclassified. ZZ U32 Naval Research Lab. LIBRARY BULLETIN NO. 291. June 13, 1947, 1 vol. Unclassified. Abstracts of periodicals. Z Z U33 Technical Intelligence Branch, Engineer . Research & Development Labs., Fort Belvoir. DOCU- MENT ACCESSION LIST VOL. 1, NO. 13. Nov. 14, 1947, 25 p. Unclassified. Figure J R U 2 9 . T h e first letter, R , indicates the m a j o r subject classification of the report, such as Geophysics, P o w e r , o r C o m m u n i c a - tion. T h e s e over-all categories are identical with the classification of research projects n o w being developed f o r the Office of N a v a l Research by the Science and T e c h n o l o g y P r o j e c t . T h e remaining letter and number, U 2 9 , serve to establish the identity of the report uniquely. JULY, 1948 205 TECHNICAL INFORMATION PILOT CUMULATIVE INDEX A C R Y L I C R E S I N S E U l l Aeronautical Materials l a b . , Naval A i r Experimental Station, Phila. ACRYLIC PLASTIC SHEET-METHODS FOR MAINTENANCE AND R E - PAIR-SPECIFICATION AN-C-154, COMPOUND, POLISHING (FOR ACRYLIC PLASTIC) - PROPOSED AMEND. - J TO ANA SPEC. Cassola, C. A. and Leonard J. Meisel. Jan. 28, 1947, 6 p. dlagrs. tables Unclassified ( R e p t No. AML-NAM 25623) ALUMINUM A L L O Y S B U8 Aeronautical Materials Lab., Naval A i r experimental Station, Phila. INVESTIGATION OF METALLURGICAL AND MECHANICAL PROPERTIES OF R303 ALUMINUM ALLOY. Dougherty, C. M. June 20, 1947, 1 vol. (variously paged) ill us. tables. Unclassified ( Rept. No. AML NAM 25287, Part IV) A N E R O I D CHAMBERS X U9 Battelle Memorial Inst. IMPROVEMENT IN CAPSULES FOR SENSITIVE ALTIMETERS. Progress Rept. No. 14, June 6-July 6, 1947. 400- 448 p. incl. ill us. Unclassified (W36-039-sc- • 32069) B R O A D - B A N D A N T E N N A S — B I B L I O G R A P H Y V U30 Federal Telephone L Radio Corp. BROAD BAND ANTENNA SYSTEM BIBLIOGRAPHY. SEC- TIONS 1 - 7 . Brown, Carl R . , George F. Robinson, and Sanford Hershfield, n. d. 1 vol. Unclassified (W36-039-sc-32111) CATHODE R A Y T U B E S G U17 Cornell U. RADAR DISPLAY RESEARCH. Reinnagel, R. E., M. G. Foster, and K. D. Swartzel. Monthly P r o g r e s s Rept. No. 10. June 27, 1947, 3 p. Unclassified (W28-099-ac-214, Rept. No. 434 P - 1 0 ) C O M B U S T I O N ( S P A R K I G N I T I O N ) R U29 Esso Labs., Standard Oil Development Co. FUNDAMENTAL STUDIES OF COMBUSTION. Russel, B. B., 3rd and H. L. Thwaites. Rept. f o r June 7-Aug. 6, 1947. 10 p. incl. diagrs. Unclassified. C O M P R E S S I B L E PLOW F U13 National Advisory Committee f o r A e r o - nautics. A THEORY OF UNSTAGGERED AIRFOIL CASCADES IN COMPRESSIBLE FLOW. Spurr, R o b - ert A . and H. Julian Allen. Research memo. Sept. 2, 1947, 42 p. incl. diagrs. Unclassified (Rept. R M - No. A7E29) C O P P E R A L L O Y S 2 U9 Battelle Memorial Inst. IMPROVEMENT IN CAPSULES FOR SENSITIVE ALTIMETERS. Progress Rept. No. 14, June 6-July 6, 1947. 400- 449 p. incl. Ill us. Unclassified (W36-039-sc- 32069) D B U T E R O N S C U3 Argonne National Lab. THE MAGNETIC MOMENTS OF THE NEUTRON AND THE DEUTERON. Arnold, W. R. and A. Roberts. Nov. 25, 1946, 17 p. incl. diagrs. Unclassified (Document MDDC 449) T o be abstracted by the Office of Technical Services of the Department of C o m m e r c e in its Bibliography of Scientific and Industrial Reports. E L E C T R O N TUBE S O C K E T S o U16 Cinch Mfg. Corp. DEVELOPMENT OF AN HERMETICALLY SEALED ELECTRON TUBE SOCKET. Del Camp, S. June 2, 1947, 14 p. incl. diagrs. Unclassified (W33-038-ac-15260, Rept. No. 3) I N S U L A T I O N ( E L E C T R I C A L ) E U12 Johns Hopkins U. THE EFFECT OF MOIS- TURE AND FUNGUS ON THE ELECTRICAL AND MECHANICAL PROPERTIES OF PLASTIC INSULAT- ING MATERIALS. Mar. - Apr. 1947, 2 p. Unclassified (W28-099-ac-70) Periodic status report. M A S S S P E C T R O S C O P E S C U6 Atomic Energy Commission. MASS 8PECTROSCOPE FOR RAPID ANALYSE IN LOW MASS RANGE. Siri, William. Jan. 18, 1947 ( d e c l a s s i - fied Mar. 7, 1947), 3 p. Unclassified W7405-Eng-48; OEM-CMR-196 (Document no. MDDC-789) T o be abstract by the Office of Technical Services of the Department of Commerce in its Bibliography ot Scientific and Industrial Reports. Figure 4 206 COLLEGE AND RESEARCH LIBRARIES