Motion picture projection : an elementary text book (1928)

Record Details:

Title:
Motion picture projection : an elementary text book
Date:
1928
Publisher:
New York : Technical Book Company
Volume:
Motion picture projection : an elementary text book
Leaf #:
000861
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Niles Essanay Silent Film Museum
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
September 21, 2023
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MOTION PICTURE PROJECTION 855 applies to the negative carbon clamping screw. If this is done, these important screws will never ' 'freeze" in and break off when you try to tighten them. When the lamp is assembled at our factory every screw in the burner gets a coating of graphite. If you have occasion to remove any screw on the burner, put graphite on the threads when you replace it. Caution : In using graphite on the lamp be careful not to get any of it on any of the insulating plates, washers or bushings. Graphite is a conductor of electricity and would be apt to cause short circuits. Do not use too much lubrication — just enough to keep moving parts running smoth and easily without squeaking. Do not test for squeaks in the lamp with a positive carbon in the holder, for with proper contact and spring tension on the upper contact, you will find that the carbon squeaks as it rotates in the head. Lubrication of Control Unit : Gear Case — See that the worm gear case on the back of the control unit is properly lubricated. Use motor grease or light cup grease. Do not put graphite in gear case. The case is filled through the plug No. 110 on blue print. Motor Cups — Fill with regular motor cup grease, not vaseline, every two months. Do not pour lubricating oil on motor bearings as it will run down and damage motor windings.