Journal of the Society of Motion Picture Engineers (1930-1949)

Record Details:

Title:
Journal of the Society of Motion Picture Engineers
Date:
1930-1949
Publisher:
New York, N.Y. : The Society
Volume:
Journal of the Society of Motion Picture Engineers
Leaf #:
000428
Language:
English
Collection:
Technical Journals
Format:
Periodicals
Contributor:
Prelinger Library
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
The Journal of the Society of Motion Picture Engineers (SMPE)Êdocuments the technological progress of the film industry, highlighting technical developments in production and exhibition. Of special interest are articles about special effects, theater practices, lighting, and the introduction of the 16mm format. Initially titled "Transactions of the Journal of the Society of Motion Picture Engineers."Digitized by the Prelinger Library and the Library of Congress Motion Picture, Broadcasting and Recorded Sound Division.
Date Added:
July 19, 2022
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Nov., 1933] NEW DEVELOPMENTS IN GENERATORS 417 plants have made it possible to operate the sets reasonably close to the sound recording equipment. The development of high-power equipment for use on large night locations presented a more difficult problem than the designing of suitable booster equipment, because the greater power involved necessitated heavy equipment and engines of large displacement; yet, for convenience in such operations, portability must be maintained. Fig. 3 illustrates the latest development in the larger portable gasoline generators. The plant is capable of delivering a current of FIG. 4. Interior view, 160-kw., gas-electric generator set. 1400 amperes at 125 volts intermittently, and is capable of delivering 1000 amperes continuously. To deliver this power a gasoline motor of 270 hp. is used. The unit shown is equipped with a Hall-Scott model 168 Invader Engine having six cylinders of 5V2-inch bore by 7-inch stroke, operating with a compression of 100 pounds. Operating on standard gasoline it delivers 270 hp. at 2100 rpm., and 248 hp. at 1800 rpm. Although probably other motors might have been used, this one was