Electricity: circuit makers and breakers – Retarded – Clock train
Patent
1975-11-24
1976-09-28
Scott, James R.
Electricity: circuit makers and breakers
Retarded
Clock train
58 19R, 58 20, 58 22, 200 35A, 200 38R, H01H 4304
Patent
active
RE0289850
ABSTRACT:
An alarm clock timer mechanism having a pair of coaxially mounted gear driven cam members with one of the cam members being axially movable to actuate an alarm or other form of control mechanism at a preset alarm time. One of the cam members is provided with a resiliently mounted cam follower which moves axially toward the other cam member at the alarm time. The resilient mounting allows the follower to ride smoothly on a lower surface of the other cam after the alarm time, thus precluding any high torque resetting loads on a timing motor. A manually operable reset mechanism is provided for axially moving the cam members away from each other to move the control mechanism to its off position and to simultaneously reset the resiliently mounted cam follower on an upper surface of the other cam.
REFERENCES:
patent: 2325812 (1943-08-01), Thompson
patent: 2505573 (1950-04-01), Prophet
patent: 2768332 (1956-10-01), Protzmann et al.
patent: 3407402 (1968-10-01), Morrison et al.
patent: 3432625 (1969-03-01), Polonsky et al.
patent: 3475899 (1969-11-01), Boyles
patent: 3721087 (1973-03-01), Boyles et al.
Boyles Robert L.
Polonsky Samuel
Cullen John F.
General Electric Company
Platt Leonard J.
Powers George R.
Scott James R.
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