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

Page scan 000479 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 #:
000479
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.

466 G. R. CRANE AND H. A. MANLEY Vol 46, No. 6 industry can be accommodated, by a simple change of chain sprockets. The film drive unit as seen in Fig. 3 is a complete assembly that is readily removable from the film compartment. For converting to a 16-mm film recorder a similar unit completely assembled and tested may be installed in its place in the machine. The 2 film sprockets differ in tooth design from the standard film sprockets that are in use today. Their design is discussed elsewhere in the JOURNAL.1 These 2 film sprockets are driven from the main drive shaft through right FIG. 1. The RA-1231 film recording machine, showing front doors open. angle helical gears, the pinion gear being steel and the large gear being nonmetallic to reduce mechanical noise. In this same drive unit is located an adjustable multiple disk clutch for the film magazine take-up drive. The take-up from this clutch to the film magazine is accomplished through a small F-belt. Using a F-belt working through the multiple disk clutch assures a relatively smooth take-up. For those who prefer the permanent arm pin drivetype magazine take-up in place of the F-belt drive the machine has been so designed »that it may be added as an accessory. Mounted on the front of the film drive unit plate, between the 2 idler rollers and extending down and around to the right-hand film sprocket, is the antibuckle trigger mechanism. This trigger operates a motor "dis