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 #:
000266
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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712 HANDBOOK OF PROJECTION FOR Turn this nut, which is a part of the bushing, one way or the other until excess circumferential play of sprocket is eliminated. When through, tighten the holding screws in the hub and the job is done, but be very careful as to the latter, as the screws have a tendency to clamp the star against the cam, in which case the adjustment made must be slacked off just a little bit. Be sure this does not happen. You can test it by trying the flywheel very gently. If it refuses to turn, or turns hard, then loosen the screws and slack off on the adjustment just a little. CAUTION. — Do not get the movement too tight. There should be no lost motion in the sprocket, but at the same time the flywheel should turn freely. Before making adjustment, if the projector has been standing still for some time first run it a little to get the parts thoroughly covered with oil. INSTRUCTION NO. 5— REMOVING AND REPLACING INTERMITTENT SPROCKET.— We do not advise you to 142-G S-222-G 115-G L*!07-G Plate 3, Figure 257.