Disconnecting switch having improved switch-blade hinging structure
AssigneeCleaveland/Price Enterprises, Inc.
InventorsCharles M. Cleaveland, Peter M. Kowalik
Life of this patent
Estimating the term…
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.
Claims8
A disconnecting switch structure comprising a pair of spaced stationary first and second switch contact assemblies (13, 17), means defining an elongated pivotal conducting switch-blade (15) having a first end stationarily hinged adjacent the first spaced stationary switch contact assembly (17) for pivotal motion thereabout and having its other free end available for swinging pivotal motion into and out of contacting engagement with the second spaced stationary switch contact assembly (13), said first end of the pivotal switch-blade (15) having a slotted hole (52) provided therein, including a switch blade-plug (60) having a hole (61) provided therein, inserted within the hinging end of the disconnecting switch-blade (15), means defining a hinge pin (65) located adjacent the first switch contact assembly (17) and passing through both the slotted hole (52) of the switch-blade and also through the hole (61) of said inserted switch blade-plug (60), operating means for causing pivotal swinging motion of the elongated switch-blade (15) about said hinge means (17), whereby during the initial opening motion of the disconnecting switch there first occurs rotative motion of the switch-blade (15) about the longitudinal "X" axis, with the switch-blade rotatively sliding upon the blade plug (60) and with the switch-blade being axially retained along the longitudinal "X" axis by the sides of the slotted holes (52) in the switch-blade bearing against the hinge pin (65), and during the final opening motion of the disconnecting switch the switch-blade (15), transverse blade-plug (60) and hinge pin (65) pivot on the transverse "Y" axis causing the outer free end of the disconnecting switch-blade (15) to separate from the second switch contact assembly (13) thereby providing an open-circuit, visible disconnecting gap therebetween.
Dependencies are inferred from the claim text.