Cab signal apparatus and method

Details Cab signal apparatus and method Cab signal apparatus and method

1993-12-10

1995-10-17

Teska, Kevin J.

Boots, shoes, and leggings

364436, 246 4, 246 34CT, 246167R, 246122R, B61L 118, B61L 2320, B61L 2918

Patent

active

054596637

ABSTRACT:
An apparatus and method for supplying cab signal to a rail vehicle on a section of track composed of sequentially adjacent railway track circuit blocks. Respective receivers of each track circuit block are monitored for the presence of a vehicle within that block. The cab signal apparatus is controlled to transmit a signal to a block when the output from the respective receiver in that block indicates a different condition from the adjacent receiver of an adjacent block. Output voltages from adjacent receivers are compared to enable transmission of a cab signal. Comparison of adjacent receiver outputs is accomplished through use of a diode bridge.

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