Pull chain attachment for rotary light switch

Details Pull chain attachment for rotary light switch Pull chain attachment for rotary light switch

1978-09-14

1980-12-23

Stearns, Richard R.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200331, H01H 1706

Patent

active

042412498

ABSTRACT:
The thumb wheel rotary shaft of an electric lamp socket switch is connected detachably to the first of a pair of rotary clutch members the second of which is connected to a pull chain for rotation in one direction against the resilient resistance of a spring. Releasable coupling between the clutch members operates to connect them together for simultaneous rotation when the second clutch member is rotated by the pull chain. The clutch members and inner portion of the length of pull chain are contained within a housing which is pivotable about the axis of the clutch members, and a pair of stop members on the housing are arranged to engage the second clutch member to establish the limits of its rotation between retracted and extended positions of the pull chain.

REFERENCES:
patent: 984053 (1911-02-01), Weber, Sr.
patent: 1264762 (1918-04-01), Biscayart et al.
patent: 1264763 (1918-04-01), Biscayart et al.
patent: 1289557 (1918-12-01), Searles
patent: 3643052 (1972-02-01), Marshall, Jr.

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