Motion picture handbook; a guide for managers and operators of motion picture theatres ([c1916])

Record Details:

Title:
Motion picture handbook; a guide for managers and operators of motion picture theatres
Date:
[c1916]
Publisher:
New York City, The Moving Picture World
Volume:
Motion picture handbook; a guide for managers and operators of motion picture theatres
Leaf #:
000376
Language:
English
Collection:
Books
Format:
Books
Contributor:
University of California Libraries
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
Date Added:
July 19, 2022
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FOR MANAGERS AND OPERATORS 357 The three wires entering the opposite side are the primary lines. The wires directly under the word "Common" must always be connected to one side of the line switch. One of the other two wires should be connected to the other side of the line switch, but which one is to be so connected will depend upon the line voltage. This is all made clear in Fig. 168, so that no mistake can possibly be made. The end of the wire not in use must be carefully wrapped with insulating tape and left dead. To Line Through Machine Switch Common TOO 110 CONNECTION FOR 105 VOLTS Of? LESS Fig. A To Line Through Machine Switch Common WO 110 CONNECTION FOR 108-1 10 OR 120 VOLTS Fig. B * II To Line ~~| c Common 200 220 Fig. C ^--^xv> To Line Common 200 220 Fig. D Plate 3, Figure 169. For further information see the wiring diagram in Fig. 169, which gives all necessary information with; regard to both the 110 volt and 220 volt transformer connections. Range of Adjustments. — In Plates 1 and 2 you see a handle or crank on top of the transformer. This handle operates adjusting plugs which vary with the current at the arc. Cast into the cover on top of the transformer case, Plate 2, are