Railroad hopper car discharge gate valve

Details Railroad hopper car discharge gate valve Railroad hopper car discharge gate valve

1992-05-11

1993-02-16

Le, Mark T.

Railway rolling stock

Special car bodies

Dumping

406131, B65G 5340

Patent

active

051861100

ABSTRACT:
A discharge gate for a railroad hopper car has slope sheets terminating in longitudinally extending spaced lips. A through is secured to the slope sheets beneath the lips and a rotatable valve shaft controls the flow of material from the interior of the gate above the slope sheets to the discharge trough. The valve shaft has axially spaced and axially extending recessed areas and an intermediate full diameter portion between recesses. A spacer extends circumferentially about the shaft intermediate portion and radially outwardly therefrom. The spacer is in contact with the slope sheet lips and locates the shaft out of contact therewith.

REFERENCES:
patent: 3797891 (1974-03-01), Fritz
patent: 4411560 (1983-10-01), McComb
patent: 4972764 (1990-11-01), Ohya et al.
patent: 4975000 (1990-12-01), Fritz et al.
patent: 5087132 (1992-02-01), Tanaka et al.

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