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

Page scan 000561 from Journal of the Society of Motion Picture Engineers

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 #:
000561
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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Fig. 1. Internal mechanism, stop-motion motor, and automatic take-up device. or motion of the register pins. They are mounted directly to the movement base plate. The register pins are in horizontal alignment. One register pin is "fullfitting" hi the film perforation; the other is "full-fitting" vertically and undersize horizontally, thus compensating for shrinkage of the film without sacrificing accuracy of registration. So accurate are the movements that a single strip of film may be exposed a multitude of times and yet maintain perfect registration. This exact duplication of registration is assured regardless of the direction of film travel. To eliminate the possibility of film damage, no pressure is applied to the film during the pull-down cycle. After the film is located on the register pins, and just before the shutter opens, a CLAW PINS PRESSURE PLATE MOVEMENT BASE PLATE-1 Fig. 2. Intermittent film movement. 552 May 1951 Journal of the SMPTE Vol. 56