Richardson's handbook of projection (1930)

Record Details:

Title:
Richardson's handbook of projection
Date:
1930
Publisher:
New York : Chalmers Publishing Company
Volume:
Richardson's handbook of projection
Leaf #:
000266
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
March 28, 2024
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1190 HANDBOOK OF PROJECTION FOR The tungsten contact points, 14, Fig. 432, are set by means of adjustment screw 17, Fig. 432, so that they are separated about the thickness of the film when the film is in the box and the gate is closed. So long as the film is whole and intact, this distance will be maintained and the mechanism will continue to function. However, 37 38 39 40 4, 42 Figure 434. if a splice passes (stopping for splices which are normal may or may not be arranged for) this distance is altered and the contact between tungsten points 14, Fig. 432, is closed, which automatically causes all the before described processes to be set into action in reverse, and the machine is stopped. Or if there be a fault, such as, for example, a split sprocket hole, or a loose splice edge,