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Handbook of projection for theatre managers and motion picture projectionists ([1922])

Page scan 000672 from Handbook of projection for theatre managers and motion picture projectionists

Record Details:

Title:
Handbook of projection for theatre managers and motion picture projectionists
Date:
[1922]
Publisher:
New York, Chalmers
Volume:
Handbook of projection for theatre managers and motion picture projectionists
Leaf #:
000672
Language:
English
Collection:
Books
Format:
Books
Contributor:
Gerstein - University of Toronto
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
14
Date Added:
July 19, 2022
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MANAGERS AND PROJECTIONISTS 637 (95, P-l, are the tension springs and the tension spring equalizer. Should it at any time be necessary to remove either of these, take out flat-head screws just above and below the cross-bar joining tension shoe tracks 694, P-2. This will release cooling plate 696, P-l, and expose the parts. In replacing, be sure that the little flat spring which acts on gate latch 693, P-l, rests against the latch and not on top of it. INSTRUCTION NO. 14— REMOVING COOLING PLATE. — (See instruction No. 13.) Plate 4, Figure 238. INSTRUCTION NO. 15— ADJUSTING TENSION.— The pressure of the tension shoes is governed by screw 732A, P-l. Setting this screw inward increases the tension and conversely loosening the screw decreases it. THE TENSION SPRINGS SHOULD BE KEPT SET EXACTLY RIGHT. SEE GENERAL INSTRUCTION NO. 9. INSTRUCTION NO. 16— APERTURE PLATE.— Aperture plate 687, P-2, may be taken off by removing screws 735 (four of them) and pulling the plate away. In replacing the aperture plate, proceed as follows : Put the plate in place