Anti-rotation device for power switch assembly

Details Anti-rotation device for power switch assembly Anti-rotation device for power switch assembly

1974-11-21

1976-05-18

Schaefer, Robert K.

Electricity: circuit makers and breakers

High-potential type

Rotating and pivoted

403157, H01H 3100

Patent

active

039580890

ABSTRACT:
The disclosed device eliminates the undesired rotational movement of an installed in-line power switch of the type having a ribbed insulator through which an insulator rod is extended into metallic end fittings. The end fittings carry the electrodes or contacts of a blade switch assembly and at least one of the end fittings is adapted for pivotal mounting to the clevis member end of a strain link. The end fitting at the pivotal mounting is provided with integral projecting tongues which project away from the pivot axis and engage a surface of the clevis thereby to reduce the relative rotation between the end fitting and the clevis member about the pivotal mounting. In one embodiment the tongue includes an inclined surface adapted to wedgingly engage a corresponding inclined surface of the clevis member in a complementary relationship therewith.

REFERENCES:
patent: 1820721 (1931-08-01), Withrow
patent: 3300599 (1967-01-01), Lankford
patent: 3813504 (1974-05-01), Anderson

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