Disconnecting switch having improved switch-blade hinging struct

Electricity: circuit makers and breakers – High-potential type – Rotating and pivoted

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308 21, 403 57, H01H 3100

Patent

active

043396364

ABSTRACT:
An improved disconnecting switch is provided having an improved hinging structure which provides the traditional movements of a vertical break disconnect switch-blade in a simple and unique way. The switch-blade rotates about its longitudinal axis on a blade plug which is supported by a hinge pin that passes at a right angle through slots provided in the blade and a hole in the blade plug. The slots define the amount of rotation and prevent the switch-blade from sliding along the longitudinal axis. The structure also allows the switch-blade to pivot open on the axis of the hinge pin. The switch-blade contact on the hinge end of the switch may be used as the supporting member for the hinge pin.

REFERENCES:
patent: 2328283 (1943-08-01), Koppitz et al.
patent: 3186736 (1965-06-01), Warshawsky
patent: 3259704 (1966-07-01), Turgeon
patent: 3500006 (1970-03-01), Kuhn
patent: 3566056 (1971-02-01), Joseph
patent: 3875355 (1975-04-01), Frink et al.

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