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 #:
000143
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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140 THOMPSON August used drops into place at the end of the retracting stroke. Thus the slides are gravity-fed from the hopper on the left to the slide track, are positioned by the plunger, and finally are pushed by the next mm Fig. 3 — Exposed view of slide changer. Fig. 4 — Slide changer with cover. slide into a receiving hopper. The unit shown uses a 3000-revolutionper-minute motor, has a 16-to-l reduction system, and completes a slide-change cycle in about 0.4 second. The motor picks up speed rapidly, and since the beginning of the cycle is chosen well ahead of the forward stroke of the plunger, it is operating at full speed during