Servicing projection equipment (1932)

Record Details:

Title:
Servicing projection equipment
Date:
1932
Publisher:
New York : Mancall Publishing Corp.
Volume:
Servicing projection equipment
Leaf #:
00028
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
August 15, 2024
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12 FILM (During Projection) (f) — Too much projector tension causes an undue strain and pull on the film. Examine and adjust it. Look under Projector, Mechanical Troubles. (g) — A bent reel in the upper magazine binds, catches, and strains the film. Examine the reel and in the future use only perfect, true reels. (h) — The upper reel is crammed too full, therefore, the layers of film rub, bind, and catch. Never fill the reel up to the edge. 2. Film Runs Off Sprocket Damaging Film (a) — This may be caused by poor splices with the holes not correctly matched. In making splices, take care to see that the sprocket holes match and overlap on both sides of the splice. (b) — There may be some worn, hooked sprocket teeth in the projector, which should be examined and replaced, if necessary. Eeversing the sprocket on the shaft will not help this condition. (c) — A tight, uneven tension causes the film to climb the sprocket teeth. (d) — The idlers, perhaps, are improperly set. (e) — The intermittent sprocket shoe may be incorrectly set. (f) — The sprockets may not be lined up correctly.