Means providing intermittent motion to a cam means of a...

Details Means providing intermittent motion to a cam means of a... Means providing intermittent motion to a cam means of a...

H - Electricity

01

H

306/271

H01H 43/10 (2006.01)

Patent

CA 1142981

MEANS PROVIDING INTERMITTENT MOTION TO A CAM MEANS OF A TIMING MECHANISM ABSTRACT OF THE DISCLOSURE A timing mechanism wherein a cam is rotated by a motor drive means and wherein electrical switch means open and close in response to the cam. An intermittent drive couples the motor drive to the cam. A rotatable member is driven by the motor drive and has a pair of drive portions eccentric to the rota- tional axis of the rotatable member. A pair of drive pawls, one each carried by one of the eccentrics, both of the drive pawls engaging the cam to alternately drive the cam in a step-by-step manner. Both of the pawls also alternately preclude reverse directional rotation of the cam.

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