Handbook of projection for theatre managers and motion picture projectionists ([1922])

Record Details:

Title:
Handbook of projection for theatre managers and motion picture projectionists
Date:
[1922]
Publisher:
New York, Chalmers
Volume:
Handbook of projection for theatre managers and motion picture projectionists
Leaf #:
000755
Language:
English
Collection:
Books
Format:
Books
Contributor:
Gerstein - University of Toronto
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
14
Date Added:
July 19, 2022
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720 HANDBOOK OF PROJECTION FOR remove the eight screws SF-60, P. 3, in face of tracks. This releases tracks. INSTRUCTION NO. 16.— TO REMOVE APERTURE PLATE. Follow Instruction No. 15. Removal of film tracks also releases aperture plate, which is located by pin CS-140, P. 3. INSTRUCTION NO. 17.— TO REMOVE PROJECTION LENS BARREL, consisting of CS-139, CS-144 and CS-146, P. 5, remove two screws, CS-141, P. 6. Remove track support SF-57, P. 2, by taking out two screws, SF-61, P. 6, which will release all parts of lens tube, including focusing screw. INSTRUCTION NO. 18.— TO FOCUS PICTURE ON SCREEN use focusing screw winged thumb nut CS-135, P. 5, which protrudes from right hand side of mechanism casing near its front edge. INSTRUCTION NO. 19.— PLACING LENS IN BARREL. At bottom of front end of lens barrel is a clamp screw, CS-148, P. 2, by means of which lens tubes are clamped in lens barrel To insert lens tube loosen this screw and back it off. A sleeve, collar or adapter will be supplied by manufacturer, upon application, to reduce diameter of lens barrel to fit any desired diameter lens tube. Get collar to fit, insert collar and tube. Strike arc, raise fire shutter and project white light (without film) to screen. Move focusing screw CS-135, P. 5, until lens tube is in center of its travel. Shove lens tube in and out until you get edges of light sharply focused on screen, whereupon tighten clamp screw CS-148, P. 5, tight, and the job is done. The picture may then be sharpened on screen by focusing screw when projection is started. INSTRUCTION NO. 20.— TO REMOVE GRIPPING DISC UNIT SC-100, shown as SC-5, SC-6, P. 3 and 4, remove screw CS-28, P. 3, which engages cam slot in the collar. You may then withdraw the unit. INSTRUCTION NO. 21.— TO DISASSEMBLE GRIPPING DISC UNIT SC-100, shown as SC-5 and SC-6, P. 3 and 4, follow Instruction No. 20, then drive out taper pin SC-9, P. 3, in hub of disc SC-5, P. 3. This releases both discs and they may be pulled from shaft. INSTRUCTION NO. 22.— TO RELEASE GRIPPING DISC SPRING SC-11, P. 6, follow Instruction No. 20, after which drive taper pin from pinion on end of shaft. Pull pinion off, which releases spring.