Movie Camera Film-Advance Mechanism
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video simulation file.
Software copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved.
Info
A segment of the coupler curve is close to a straight-line segment for film advancement. The tip of the coupler (called film hook) is inserted into the perforation of the film at an angle of approximately 90° to pull the film for advancing one frame. the hook leaves the film strip also at an angle of approximately 90°.
Source
This Working Model file is adapted from Figure 3-18 on p.117 in Design of Machinery, 3rd ed. by Norton, R.L., McGraw-Hill, 2004, also from a figure on p.119 in Mechanisms & Mechanical Devices Sourcebook, by Chironis, N.P., McGraw-Hill, 1991.
Credits
This Working Model file was first developed by Fan (Michael) Mo.