F. H. Richardson's bluebook of projection (1942)

Page scan 000590 from F. H. Richardson's bluebook of projection

Record Details:

Title:
F. H. Richardson's bluebook of projection
Date:
1942
Publisher:
New York : Quigley Publishing Company, Inc.
Volume:
F. H. Richardson's bluebook of projection
Leaf #:
000590
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
Date Added:
May 02, 2025
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574 RICHARDSON'S BLUEBOOK OF PROJECTION that a faulty instrument can be compared in detail with one in good working order, is the best help any man could have or ask in tracing trouble through these devices. Care of Drive Transmission (20) The transmission system needs proper, specified lubrication, attention to the tension of its belts or chains — and watching. Watch for evidences of wear or strain that may cause a breakdown, such as worn-down sprocket teeth or a frayed belt. Watch particularly for evidences of vibration or other irregular action. Flutter and even wows are often difficult for the projectionist to hear in the monitor, above the noise of his projector. Wherever rubber is used, for coupling or damping (as in Figure 215, for example) watch the condition of that rubber. And be careful of the rubber in lubricating the equipment. Rubber is injured by oil. Details of the care required by any individual transmission system (lubrication, etc.) may be obtained from its manufacturer,* and should be followed exactly. * One tiny, overlooked flaw in the transmission can bring motor, transmission, sound gears and projector head to a sudden, jarring stop, and do a thousand dollars worth of damage. Therefore, give scrupulous obedience to manufacturer's instructions with respect to lubrication and care of your own transmission system, and — watch it.