Richardson's handbook of projection (1927)

Record Details:

Title:
Richardson's handbook of projection
Date:
1927
Publisher:
New York : Chalmers Publishing Company
Volume:
Richardson's handbook of projection
Leaf #:
000250
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 01, 2024
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698 HANDBOOK OF PROJECTION FOR angle you will get the face of the leather ground off on a slant and it will then not fit the disc wheel squarely. INSTRUCTION NO. 2.— New friction material may be ordered from the Nicholas Power Company, Incorporated, at any time. The old material may be removed by loosening the set screw in the hub R-16, P-14, and in set collar R-21, P-14, and in R-24, P-14. Having done this, R-25, P-14, may be pulled out to the right, thus releasing the friction wheel. You can then take out the old friction material by removing the screws in the face of R-16, P-14. The process of reassembling is the reversal of the process of dis-assembling, but Figure 249. Power's Adjustable Shutter Bracket. these parts run on high speed, therefore, be sure and set up all the screws tight. INSTRUCTION NO. 3— CAUT ION.— Never leave the controlling lever down when the projector is standing still; always pull the lever clear up so as to disengage friction wheel R-15, P-14, from driving disc R-13, P-14. Failure to attend to this matter will probably result in flat spots on the friction material. In nine cases out of ten where flat spots develop it is caused through failure to heed this warning.