Vigilance safety control system

Details Vigilance safety control system Vigilance safety control system

B - Operations, Transporting

60

T

303/46

B60T 17/00 (2006.01) B60L 3/02 (2006.01) B60T 7/12 (2006.01) B60T 7/14 (2006.01)

Patent

CA 1213633

ABSTRACT OF THE DISCLOSURE A pneumatic vigilance monitoring system which requires an engineer of a moving train to cycle an acknowledging valve within a predetermined time after the sounding of a warning whistle. The system includes a pair of parallel control circuits each having a first choke and reservoir and a second reservoir and choke connected to the acknowledging valve. A double check valve connects the second reservoirs to the warn- ing whistle as well as to a piloted three-way valve which normally causes a brake application valve to release the brake and which causes the brake application to initiate a penalty brake application if the locomotive engineer fails to periodically cycle the acknowledging valve.

434435

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