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TM 28-410 Projectionist's Manual: Army Motion Picture Service, 1945

TM 28-410 Projectionist's Manual: Army Motion Picture Service, 1945-08-31 CONTENTS SECTION I. GENERAL. Introduction Fire and noise safeguards Electrical circuits Starting projector Operating test Tension, magazine shafts Waste carbons Conservation of copper II. LUBRICATION. General Effect on sound units Care in oiling Seepage of oil Excessive lubrication Motor bearings Arc generator set Arc lamphouse Arc control motor Quantities, projection and sound head Simplex E-7 projector mechanism Super simplex projector mechanism Holmes projectors Devry projectors Sound heads Rectifier arc supplies Rewinds III. CLEANING. General Gears, projection and sound head Film path Film trap units Sprockets Pad rollers Automatic fire shutter Magazine rollers Film guide, sound Optical system, sound Projection lens Ports, projection and observation Reflectors Condensing lenses, lamphouse Lamphouse, arc Relay, automatic arc feed Motor, automatic arc feed Commutator, generator sets Rectifier type arc supplies Screen IV. HANDLING OF FILM. General Film handling Inspection of film Film splicing Film inspection report form (AMPS Form #186) Equipment design relative to fire hazard Threading projector and sound

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