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

Page scan 00049 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 #:
00049
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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46 FORREST July reaction, the excess solution is washed off the track area and the film is returned to the wash tank from which it was taken. This entire treatment requires about 75 seconds. After its return to the wash tank, the film continues on through the rest of the process in the usual way. Although this process of treating the track requires care, it is a straightforward procedure and is not untidy or odorous. The solution contains sodium sulfide; however, the amount of solution required is small, only about 10 cubic centimeters or 1/s ounce is required for 100 feet of film. Therefore, the handling of the solution Fig. 7 presents no problem or hazards in the processing laboratory if ordinary precautions are taken. The unit is compact and portable on casters (Fig. 8) and when used, it is moved alongside the developing machine and remains there through the run. Even for developing machines continuously processing sound film, the portable construction is desirable. This type of construction makes it possible to move the unit out of the way to give free access to the processing machine for maintenance and cleaning. The unit itself does not propel the film. This is accomplished