Apparatus for checking integrity of magnet valves in electro-pne

Details Apparatus for checking integrity of magnet valves in electro-pne Apparatus for checking integrity of magnet valves in electro-pne

1974-08-26

1976-02-10

Gill, James J.

Measuring and testing

Brake testing

G01L 528

Patent

active

039370747

ABSTRACT:
Integrity checking apparatus including an indicator lamp on each car of a transit train equipped with electropneumatically controlled brakes, said lamp being illuminated when the application magnet valve operates to effect a brake application and remaining illuminated until a stick circuit, which is closed by the brake application operation to keep said lamp illuminated, is interrupted by operation of the release magnet valve in releasing the brakes, thus providing a positive means of monitoring the integrity of both the application and release magnet valves during a terminal test of the brake system.

REFERENCES:
patent: 584463 (1897-06-01), Creelman

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