Railroad signal system

Details Railroad signal system Railroad signal system

1988-01-20

1993-01-12

Oberley, Alvin E.

Railway switches and signals

Electric automatic highway signals, mine doors, and gates

Car-actuated controller

246246, 246292, 2464731, A47G 2900

Patent

active

051783495

ABSTRACT:
An improved railroad signal system is described in which a train is allowed to approach a block even if a red light is activated for the block. A white numbered light is activated indicating the maximum permissible speed of the train. The system includes a home clearing relay and a station timing relay which are activated by two separate circuits thereby eliminating a wire loop.

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