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 #:
000401
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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382 MOTION PICTURE HANDBOOK FORT WAYNE A. C. TO D. C. AND D. C. TO D. C. COMPENSARCS . General Description.— Both A. C. to D. C. and D. C. to D. C. compensarcs are what are commonly styled "motor generator sets," that is to say, two machines coupled together, one being a motor and the other a generator. In the A. C. to D. C. compensarcs the motor and generator are mounted on a common base, as shown in Plate No. 1. Fig. 181. The motor and generator frames of the D. C. to D. C. compensarcs are, however, coupled together by a common flange, as shown in Plate No. 2, Fig. 181, so that no base is necessary. All Fort Wayne compensarcs are shipped completely assembled, and require only proper installation, filling of the bearings with oil and proper electrical connection to the supply and lamp circuits (See General Instruction No. 2, Page 369) before putting into service. Plate 1. Plate 2. Figure 181. The A. C. to D. C. compensarc consists -of a standard induction motor, either single, two or three phase, the same being directly connected to a special D. C. generator. The armature shafts of the set are joined by couplings, and there are but three bearings, two on the motor and one on the generator. The generator end of this set is wound specially for use with projection arc lamps, and the winding is such that no steadying resistance is necessary between the arc and generator. While the 115 and 220 volt D. C. compensarcs are commonly referred to as "motor generator sets," rightly speaking they are not, since electrical connections are different from the true motor generator set. The machine is in effect a