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FOUR-BAR OPERATING CLAW MECHANISM OF A MOTION PICTURE CAMERA |
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Description
When crank 1 of four-bar linkage ABCD rotates about fixed axis A, the tips of claws a, mounted on connecting rod 2, describe a connecting-rod curve. At one of the portions of this curve, claws a engage perforations of the film which they move. At another portion of the connecting-rod curve, claws a are withdrawn from the perforations. |
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