Five gear isolating mechanism for bypass isolation switches
AssigneeWestinghouse Electric Corp.
InventorsGeorge A. Smith, Thomas K. Fogle
Life of this patent
Estimating the term…
Abstract
A mechanism for bypass isolation switches of the type comprised of at least three circuit interruption devices each having a handle has at least three switch gears, one positioned over each circuit interruption device and having either a drive gear or a spacer gear therebetween. A cam having a mouth which engages the handle of the circuit interruption device is eccentrically mounted on each switch gear. A stop is provided on at least one gear to permit the gears to rotate only 180.degree.. Since the drive, spacer and switch gears are interconnected, the cams must move or not move simultaneously. As a result, the at least three circuit interruption devices are operated simultaneously.
Claims11
A mechanism for bypass isolation switches of the type having at least three adjacent circuit interruption devices each circuit interruption device having a handle which can be in one of an ON position, an OFF position and a RESET position comprising:
- a) a housing;
- b) at least three switch gears mounted on the housing such that there is one switch gear for each circuit interruption device;
- c) at least one spacer gear mounted on the housing and engaging two of the at least three switch gears;
- d) a drive gear mounted on the housing and being sized and positioned to drive the switch gears;
- e) at least three cams each cam eccentrically connected to a switch gear such that there is one cam adjacent to each switch gear, each cam having a mouth sized and positioned to receive a handle of a circuit interruption device;
- f) drive means connected to the drive gear;
- and
- g) lock means attached to the housing and having a stop member positioned to extend to a position adjacent one cam and when so positioned prevent the cam from moving from one of an OFF position to an ON position and an ON position to an OFF position.
Dependencies are inferred from the claim text.