Slippery wheel detector

Details Slippery wheel detector Slippery wheel detector

1975-07-16

1976-11-23

Kunin, Stephen G.

Railway switches and signals

Cab signal or train control

Speed-control systems

73 8, 73 9, 104 26A, B61L 1302, B61K 704

Patent

active

039932702

ABSTRACT:
This invention relates to a method and apparatus for determining whether or not a freight car in a classification yard can be adequately retarded, prior to it being moved to make up a freight train, by measuring whether the wheels of the freight car are too slippery for the car to be properly retarded to a safe speed while being moved toward the freight train.

REFERENCES:
patent: 3033018 (1962-05-01), Haggadone
patent: 3237007 (1966-02-01), Crawford
patent: 3317164 (1967-05-01), Marcheron
patent: 3609350 (1971-09-01), Wilson et al.

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