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

Page scan 000654 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 #:
000654
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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1949 AIR COOLING OF FILM 651 blower would have been a more satisfactory and less expensive source of low-pressure air. A number of nozzles of different design were tested for cooling efficiency; some of these are shown in Fig. 6. These nozzles range from 0.007 to 0.14 square inch in area and were found to operate best with a 1 1 Fig. 6 — Selected nozzle types for air cooling. These nozzles are shown to indicate the variety of shapes tested, and to suggest further designs that may prove best adapted to certain equipment. free-air velocity at the nozzles from 250 to 500 feet per second. It should be pointed out that the choice of a suitable nozzle is a compromise among cooling efficiency, ease of mounting and direction, method of construction, space available, and freedom from interference with the normal projector performance. The nozzles used in this test were chosen for their ease of installation in the Simplex E-7 projector. We