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

Page scan 000670 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 #:
000670
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 635 with film it would indicate aperture plate out of true. Gently drive its top one way or the other, as is required, to square it with the film. The first thing to do, however, before making this test is to be certain your intermittent sprocket shaft is in exact alignment with camshaft. INSTRUCTION NO. 10— TENSION* OF UPPER IDLER ROLLER.— Upper sprocket idler roller 609, P-2, is held to the sprocket by a flat spring, 615. Should this spring at any time become too weak, it may be strengthened by removing the idler roller bracket (see instruction No. 7) and bending the top of the spring outward until the desired tension is obtained. INSTRUCTION NO. 11— REMOVING THE GATE.— The entire gate, including cooling plate 696, P-l, automatic fire shutter flap 697, P-l, and hinge 690, P-l, may be removed Plate 2, Figure 236.