Servicing projection equipment (1932)

Page scan 00046 from Servicing projection equipment

Record Details:

Title:
Servicing projection equipment
Date:
1932
Publisher:
New York : Mancall Publishing Corp.
Volume:
Servicing projection equipment
Leaf #:
00046
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:
August 15, 2024
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30 LAMP MECHANISM magnetic strength and balance these against the spring tension. To Adjust: Get the arc at its most perfect setting; then, with the controller motor feeding, set the spring, adjusting-screw, or knob until the motor just stops at that arc-length. Warning: Never use the motor of this controller on A. C, and when changing from D. G. to A. G., disconnect it. Do not break the seal on the box guarding the relay: with the seal unbroken the guarantee is valid; with the seal broken, the guarantee is voided. 7. Motiograph Mechanical Same Applies to Similar Types (a) — The motor in this device runs continuously at an even, constant speed. The carbon feed and the speed of the carbon feed are regulated by the amount of the circumference of one friction disc being in engagement, by friction, with the circumferences of the friction discs which drive it. It is turned by them, thus regulating the degree of the engagement of these discs which regulates the speed of the carbon feed. An adjustment is provided by which more or less surface can be brought into engagement. To keep the arc conditions at the best point, regulation must match the rate of carbon consumption.