Railways – Switches – For toothed rail
Patent
1988-06-27
1990-11-20
Kashnikow, Andres
Railways
Switches
For toothed rail
246258, 246415R, 246419, 246431, 246448, E01B 2506
Patent
active
049709658
ABSTRACT:
A rotary switch is provided for a people mover guideway having a predetermined tire path, guidebeam and electric rail configuration. The rotary switch routes a transit car from one entry guideway path to at least either of the two exit guideway paths or vice versa. A movable elongated structural switch frame member has guidebeam, electric rail and tire path structure on one side compatibly with the guideway configuration to provide car routing to one of the two exit paths in one of two switch positions; the movable switch frame further has guidebeam, electric rail and tire path structure on another side compatibly with the guideway configuration to provide car routing to the other of the two exit paths in the second switch position. Switching is achieved by rotating a movable part of the switch 180.degree. degrees about its longitudinal axis. A first fixed frame supports a drive shaft which in turn supports a first end of the movable switch frame. A second fixed frame supports a second shaft which in turn supports the second end of the movable switch frame. The movable frame is locked in either of its two positions by a first pair of lock pins for one end of the movable switch frame and a second pair of lock pins for the other end of the movable switch frame. Each of the lock pins extends through an associated opening in the associated fixed frame and the associated end of the movable switch frame and is supported by spherical bearings relative to the fived and movable frames. Hydraulic actuators insert and withdraw the lock pins into and out of movable frame locking position when the movable switch frame is located in either of its two rotational positions.
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"C45 Vehicle System Development Program", APTA Conference, Jun. 5-8, 1988, Westinghouse Transportation Systems and Support Division.
Anderson Robert J.
Burg Thomas J.
Cooper William K.
AEG Westinghouse Transportation Systems, Inc.
Kashnikow Andres
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