Emergency portion for a brake control valve

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

B - Operations, Transporting

60

T

303/36

B60T 15/42 (2006.01) B60T 15/18 (2006.01)

Patent

CA 1081285

EMERGENCY PORTION FOR A 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 plurality of simple and inexpensive poppet valves and a spool-type valve which valves 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 position to another, in their manufacture require a considerable amount of accurate machining thus increasing the cost of the brake control valve device of which they are an important part.

290820

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