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

Page scan 000430 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 #:
000430
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
Something wrong or inaccurate about this page? Let us Know!

Thanks for helping us continually improve the quality of the Lantern search engine for all of our users! We have millions of scanned pages, so user reports are incredibly helpful for us to identify places where we can improve and update the metadata.

Please describe the issue below, and click "Submit" to send your comments to our team! If you'd prefer, you can also send us an email to mhdl@commarts.wisc.edu with your comments.




We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.

Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.

April, 1931] THE TALKING FILM 423 film by means of a smooth roller} to which it is caused to adhere by means of pressure pads. This smooth roller is keyed to the shaft of a larger flywheel which provides steady movement. Fig. 11 shows a Gaumont recorder of the Peterson-Poulsen type. In this machine, the film is the driving agent and turns the flywheel FIG. 12. Special recorder developed for maintaining constant tension on the film band and to counteract other defects usual in recorders. which is quite free and is employed merely because of its inertia. In some other machines, on the contrary, the smooth cylinder carries the film forward. But here some difficulty is encountered. The standard conditions for synchronizing sound film require that a length of film equivalent to 24 frames pass every second, or what amounts to the same thing, a length including 96 perforations. But these 96 perforations represent an indefinite length, for the pitch of the film