Emergency portion for brake control valve

Details Emergency portion for brake control valve Emergency portion for brake control valve

B - Operations, Transporting

60

T

303/46

B60T 15/30 (2006.01) B60T 15/24 (2006.01)

Patent

CA 1081287

EMERGENCY PORTION FOR BRAKE CONTROL VALVE ABSTRACT OF THE DISCLOSURE An upgraded railway freight car brake control valve device comprises a novel emergency valve portion that embodies therein a minimum number of simple and inexpensive poppet valves, one of which is a double seated valve, that replace yet perform the same functions heretofore performed by more expensive slide type valves which slide valves, and the flat seats upon which they slide as they are shifted from one posi- tion to another, in their manufacture require a considerable amount of accurate machining thus increasing the cost of the valve device or which they arc an important part.

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