Instruction of disabled men in motion picture projection, an elementary text book (1919)

Page scan 00079 from Instruction of disabled men in motion picture projection, an elementary text book

Record Details:

Title:
Instruction of disabled men in motion picture projection, an elementary text book
Date:
1919
Publisher:
New York, The Red cross institute for crippled and disabled men
Volume:
Instruction of disabled men in motion picture projection, an elementary text book
Leaf #:
00079
Language:
English
Subjects:
Motion picture projection, People with disabilities -- Rehabilitation
Collection:
Books
Format:
Books
Contributor:
University of California Libraries
Sponsor:
MSN
Coordinator:
Media History Digital Library
Date Added:
July 19, 2022
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64 MOTION PICTURE PROJECTION FILM The film used for motion picture work is similar to that used in ordinary photographic work, only it gen- erally comes to the operator in lengths of approximately 1,000 feet. The size of each picture on the film is 11-16 by 15-16. The margin of the film is perforated (four holes to the picture). These holes engage on the teeth of the sprockets. Never lose sight of the fact that the film is highly inflammable and should at all times be kept in fire- proof boxes. Great care should be taken when thread- ing the machine with the film, to see that it does not come in contact with the hot lamp house. All film should be examined before showing. While this is no part of an operator's duties, it will work to his ad- vantage in the long run. Under no conditions let your film run on to the floor of the booth. Should the take-up refuse to act or should the film break, stop the machine and fix it. There are a number of ways of cleaning film, a number of machines being on the market for this pur- pose, but we hold that the cleaning of film should be done in the film exchange and not by the operator; an operator is paid for projecting the pictures and should be able to give his undivided attention to this. Operators when using first run film will find that the emulsion will come off film and adhere to the tension bars and film runners in gate of machine. A very, very