Motion picture projection; an elementary text-book (1921)

Record Details:

Title:
Motion picture projection; an elementary text-book
Date:
1921
Publisher:
New York, Theatre Supply Co.
Volume:
Motion picture projection; an elementary text-book
Leaf #:
00098
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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MOTION PICTURE PROJECTION 97 AN IDEAL PROJECTION ROOM "The largest theatre in the world," the New York Capitol, has a projection room in keeping with the rest of its luxurious appointments. The projection room proper is 41 feet long and 19 feet deep and as will be seen by the accompanying photographs, it is furnished with everything necessary for perfect projection. Four of the latest Type S Simplex machines are responsible for the projection, each machine is equipped with an automatic arc control and a metal cabinet for receiving hot carbon stubs. There is also a special spotlight and a Simplex Stereopticon, the spotlight is fitted with an 8-inch iris diaphragm so constructed and arranged that any sized spot can be immediately obtained, it is also fitted with a curtain dissolve which allows the operator to gradually flood or dim the stage for special lighting effects, and dispenses with the troublesome masks. Current supply is D. C. through 50-125 multiple unit rheostats. The rheostats are placed in a special room adjoining the projection room, the rheostat controls being on the front wall near each projector within easy reach of the operator. Each machine draws 125 amperes at an approximate pressure of 68 volts.