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 #:
00085
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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MANAGERS AND PROJECTIONISTS 535 WIRING AND CONNECTING— The following is the recommendation of the manufacturer as to wire sizes for different length of circuit. istance generator Size Wire, ! 3 & S Gauge to Projectors 75 Amps 100 Amps. 1 to 100 3 1 110 2 1 120 2 1 130 1 0 140 1 0 150 1 0 160 1 00 170 0 00 180 0 00 190 0 000 200 0 000 210 00 000 220 00 000 230 00 000 240 00 0000 250 00 0000 260 000 0000 270 000 0000 280 000 0000 290 000 0000 300 000 0000 Full directions for wiring will come with each new set. If you purchase a used set, wiring directions may be had from the Westinghouse Electric & Mfg. Co., East Pittsburgh, for the asking. Just send them an exact copy of everything found on the name plate of the machine, being very sure to write your name and address very clearly. To operate series arcs first close all switches in operating circuits, start the motor generator and let it come up to full speed. As soon as it is running normally, with all switches, etc., in normal position for running, OPEN THE SHORT CIRCUITING SWITCH OF THE LAMP YOU WILL BE USING, and as soon as the voltmeter shows about 100 volts, strike the arc you propose to use in the usual way by bringing the carbons together and separating them immediately, adjusting the arc to normal length. When starting the equipment it is best to have all the switches closed so as to operate the generator on a closed circuit, because the generator volt