Incremental timer drive mechanism

Details Incremental timer drive mechanism Incremental timer drive mechanism

1987-06-01

1988-07-26

Scott, J. R.

Electricity: circuit makers and breakers

Retarded

Clock train

74125, 200 38R, H01H 708, F16H 2912

Patent

active

047602198

ABSTRACT:
An incremental drive mechanism for a switch operating timing cam is disclosed. The mechanism includes a camshaft having a radially extending cam and a cooperating slide which is adapted to reciprocate along a rectilinear path. The slide has first and second cam surfaces which are engaged during a major portion of a single revolution of the camshaft to reciprocate the slide in a positive manner. The slide has a cantilever spring arm which carries a pawl tooth at its end to engage successive teeth provided on the periphery of a switch operating cam drum or disc.

REFERENCES:
patent: 3738185 (1973-06-01), Wooley
patent: 4579014 (1986-04-01), Malone
patent: 4599499 (1986-07-01), Duve

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