Railway track switch heating arrangement

Details Railway track switch heating arrangement Railway track switch heating arrangement

1975-06-09

1976-08-17

Reger, Duane A.

Railway switches and signals

Switches

Snow protected

317246, 337300, E01B 724

Patent

active

039749932

ABSTRACT:
A railway track switch is provided with an arrangement for preventing the accumulation on the track switch of snow such as could cause blockage of a moving part of the track switch or other malfunction. The arrangement includes a controllable track switch heating unit operative when activated for heating at least a part of the track switch, and a capacitive snow-detecting unit arranged in proximity to the track switch. The snow-detecting unit detects accumulated snow or ice, and the operation of the track switch heating unit is automatically controlled in dependence upon such detection.

REFERENCES:
patent: 3312820 (1967-04-01), Watkins
patent: 3882381 (1975-05-01), Gregory

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