Electricity: circuit makers and breakers – Retarded – Clock train
Patent
1982-09-30
1984-07-31
Goldberg, E. A.
Electricity: circuit makers and breakers
Retarded
Clock train
200 38B, H01H 4310
Patent
active
044632258
ABSTRACT:
The electric motor drives high and low speed drive pinions through reduction gearing. A low torque capacity clutch is located in the reduction gear train to the low speed pinion to permit the user to turn the manual shift to position the timer. The various program cams are driven by a drive member carried by an arbor on which the cams are mounted. The cams are independently spaced relative to the arbor and housing so any may be omitted as desired. The pulsing cam is mounted on the arbor and driven by the high speed pinion. The switch blades are essentially straight, the only forming being at the contact end where contact position or pressure will not be affected.
REFERENCES:
patent: 1533677 (1925-04-01), Warren
patent: 4103119 (1978-07-01), Homan et al.
Kothe Erich
Obermann George
Redfield William H.
Bell Edward L.
Davis David L.
Ginsburg Morris
Goldberg E. A.
Smith Robert E.
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