Electricity: circuit makers and breakers – Contact moved by sudden release of stored energy
Patent
1992-04-28
1993-12-28
Luebke, Renee S.
Electricity: circuit makers and breakers
Contact moved by sudden release of stored energy,
200305, H01H 504
Patent
active
052742067
ABSTRACT:
A spring charging mechanism for electrical circuit breakers and transfer switches of the type in which a spring is charged by rotation of a shaft. The charging mechanism has a charging shaft with two independently operating ratchet mechanisms coupled thereto. One ratchet mechanism may be driven by hand while the other may be separately motor-driven or held stationary by a bracket. The ratchet mechanism which is not in operation acts as a locking device which prevents rotation of the charging shaft in the discharge direction while allowing rotation in the charging direction. The charging mechanism is adaptable for either hand or motor-driven operation or both. It also features an inexpensive and easily-installed flexible, resilient, insulating sleeve which insulates the charging mechanism from the operator, and a key arrangement for coupling a handle to a ratchet mechanism which distributes stress within the handle and protects the handle fastening screws from destructive shear stresses.
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Luebke Renee S.
Moran M. J.
Westinghouse Electric Corp.
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