Railway track circuits

Details Railway track circuits Railway track circuits

1994-03-29

1995-11-28

Le, Mark T.

Railway switches and signals

Train-position indication

Miniature model

246 28R, 246 34R, B61L 2500

Patent

active

054700345

ABSTRACT:
This invention relates to railway track circuits. An active track circuit termination unit (4) is connected to the rails and, via a transmitter unit (4a), transmits signals into the rails to terminate track circuits (A,B). The transmitter unit also transmit data signals, for example track circuit signals, into the track circuits.

REFERENCES:
patent: 3359416 (1967-12-01), Wilcox
patent: 3450874 (1969-06-01), Whitten
patent: 3829682 (1974-08-01), Geiger
patent: 4145018 (1979-03-01), Poggio et al.
patent: 4641803 (1987-02-01), Brown et al.

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