Power transmission apparatus with built-in phase control

Details Power transmission apparatus with built-in phase control Power transmission apparatus with built-in phase control

1997-10-30

2000-10-24

Gray, David M.

Photography

With film drive

Film transport cocks shutter

396411, 74437, 74457, G03B 1742

Patent

active

06137962&

ABSTRACT:
A power transmission apparatus adapted for an apparatus such as a camera or the like includes a first toothed wheel having teeth at least one predetermined tooth of which differs in tooth thickness from at least one different tooth of the teeth, a second toothed wheel which meshes with the first toothed wheel, the second toothed wheel having tooth spaces at least one predetermined tooth space of which meshes with the at least one predetermined tooth of the first toothed wheel and differs in space interval from at least one different tooth space of the tooth spaces, a determination device which determines a rotating position of the first toothed wheel, and an operating device which performs a predetermined operation according to a rotating position of the second toothed wheel.

REFERENCES:
patent: 2399925 (1946-05-01), Hewlett, Jr.
patent: 3218966 (1965-11-01), Petit

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