Hydraulically applied railway type freight car parking brake...

Details Hydraulically applied railway type freight car parking brake... Hydraulically applied railway type freight car parking brake...

B - Operations, Transporting

60

T

B60T 13/10 (2006.01) B60T 13/58 (2006.01) B60T 17/16 (2006.01) B61H 13/00 (2006.01)

Patent

CA 2288427

A hydraulically applied railway type freight car parking brake system includes a source of hydraulic pressure disposed on the freight car for supplying a predetermined fluid pressure sufficient to actuate and maintain the parking brake system in a brake application position. A force transmitting cylinder is disposed on a truck portion of the freight car in fluid communication with the source of hydraulic pressure for exerting a predetermined force on at least one brake beam carrying a pair of brake shoes. The brake shoes are brought into and maintained in frictional engagement with a portion of a respective surface of a tread portion of a pair of wheels during an application of the parking brake. A pump may be used to apply hydraulic pressure from the source to the cylinder.

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