Servicing projection equipment (1932)

Record Details:

Title:
Servicing projection equipment
Date:
1932
Publisher:
New York : Mancall Publishing Corp.
Volume:
Servicing projection equipment
Leaf #:
000133
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:
March 28, 2024
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LIGHT CONDITIONS 117 18. Light Streaky With Incandescent Lamp Projection (a) — The lamp may have a sagging, warped filament. Keplace the old lamp and discard it if the new lamp corrects this condition. Otherwise, inspect the lenses to see whether there is any dirt, oil, or grease upon them. 19. Shadow Appears Near Top, Bottom, or Side of Screen (a) — If a faint shadow is evident it is probably due to an incorrect adjustment of the gate on the projector. This trouble should be tested on a clear screen (no film running), and while the shadow is visible, lift the gate. If the shadow disappears, readjust the gate and center it. 20. Unsteady Picture (a) — There may be dirt on the sprocket of the intermittent. This should be examined and cleaned. (b) — This trouble may be due to vibration, either of the projector or of the floor. (c) — It can also be caused by worn, loose, or vibrating parts in the intermittent or in the aperture assembly.