F. H. Richardson's bluebook of projection (1935)

Record Details:

Title:
F. H. Richardson's bluebook of projection
Date:
1935
Publisher:
New York : Quigley Publishing Company, Inc.
Volume:
F. H. Richardson's bluebook of projection
Leaf #:
000199
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
{"Media History Digital Library","Jeff Joseph"}
Coordinator:
Media History Digital Library
Description:
Date Added:
March 21, 2024
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THE l-'ILM 181 scraped slightly to remove dirt and oil and to roughen the celluloid a little. Above all use good cement.* If it is kepi from contact with the air it will remain in good condition for a long time. (32) If cement is exposed to the air it will evaporate some of its content, absorb moisture quickly and make very weak, poor splicing material. (33) Film cement is not rubbed on. It is applied with a small brush. Do not pass the brush across the film Fig. 57. — Example of stiff, wide, splice going over sprocket. Observe how film is raised off face of sprocket ; the image on the screen passes through a series of convulsive movements. more than once. No satisfactory explanation has ever been forthcoming why more than one brush stroke of cement across the face of a film weakens the splice but long experience in projection rooms points to it. (34) To make a strong splice the cement should be laid on with one stroke of the brush — an application that requires skill and judgment that comes from practice. *Inflammable and slow-burning film cannot be spliced with the usual cement used for flammable stock. It requires a cement especially made for the purpose.