Richardson's handbook of projection (1927)

Record Details:

Title:
Richardson's handbook of projection
Date:
1927
Publisher:
New York : Chalmers Publishing Company
Volume:
Richardson's handbook of projection
Leaf #:
000280
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:
July 18, 2024
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726 HANDBOOK OF PROJECTION FOR door should first be lifted off, as per Instruction No. 1. The springs should be bent without removing, but be very sure you bend both sides alike. INSTRUCTION NO. 38.— The Simplex folks supply, on order, an undersize aperture to be used where it is necessary to eliminate keystone effect by filing. This aperture is about 1/32 of an inch less in size than the regular aperture opening. INSTRUCTION NO. 39.— TO REMOVE APERTURE PLATE. — To remove aperture plate follow instruction 30, since film tracks must be taken out, then remove projection Figure 262. lens tube by loosening clamp screw (S-145-A, P. 2, and pulling the lens out. Next, using a proper screw-driver, take out the two small screws which hold the aperture plate in place. They are not seen until the film track shoes have been removed. In replacing aperture, or putting a new one in place, be sure and set the screws up tight, else the plate may be held loosely and scratch the film. INSTRUCTION NO. 4a.— INTERMITTENT MOVEMENT. —In Fig. 262 the intermittent is shown with a part of the