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 #:
000288
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:
July 18, 2024
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734 HANDBOOK OF PROJECTION FOR imum of, say, 40 and a maximum of 140 feet per minute may be had. > Examining plates 7, 8 and 9, which are respectively side, top and sectional views of the device, you may readily understand the operating principle, the idea being to cause mechanism driving discs X-16, P.7, to be grasped and driven by friction discs X-7 and D-118-X, P-9, and to provide means by which the projectionist may, by a conveniently located speed adjusting knob, (S-438-M, P.8), either thrust disc X-16 further between the driving discs, in which case it will be driven XAbtltSC iH/ir mm protects mbchbnish FH.R *ytfll Plate 9, Figure 267. Bearing carnage whole assemblage, Dis<c D-118, revolves inside it, and main belt wheel X-ll outside it. Interior friction disc X-ll Exterior friction disc and shaft. Main belt wheel. Locking washer. more slowly, or withdraw it further out so that it will be driven more rapidly. All this is readily understood from an examination of the various plates.