H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/329
H01H 35/10 (2006.01) H02P 1/42 (2006.01) H01H 1/28 (2006.01) H01H 19/62 (2006.01) H01H 21/60 (2006.01)
Patent
CA 1287859
Abstract of the Disclosure A single phase induction motor starting and automatic reversing switch has two pairs of springy vertically spaced apart switch blades supported in opposed cantilever fashion on an insulating base. Each pair consists of an upper blade and a lower blade. A nominally stationary contact is mounted in spaced relation above each upper blade and below each lower blade. Opposite ends of the motor starting winding are connected in common between the upper and lower stationary contacts. A shaft of insulating material with a lever at one end operates the switch. The shaft extends between the vertically spaced apart blade pairs and has axially displaced oppositely radially extending arms, one between one pair of blades and the other between the other set of blades. Turning the operator shaft in a first direction causes one arm to press a blade against one upper stationary contact and the other arm to press a blade against one lower contact. Turning the shaft in a second direction causes the other blades in each pair to contact stationary contacts to change the current flow direction through the starting winding. A centrifugal force responsive device on the motor shaft actuates the switch operator.
530535
Borden Ladner Gervais Llp
Emerson Electric Co.
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