Apparatus for controlling operation of a railcar discharge gate

Railway rolling stock – Special car bodies – Dumping

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7052823, 7053101, 7053112, B16D 724

Patent

active

RE0359254

ABSTRACT:
An apparatus for controlling operation of a railcar discharge gate assembly including a frame defining a discharge opening with a gate slidably arranged on the frame for movement along a predetermined path of travel between open and closed positions. The apparatus of the present invention includes an operating shaft rotatably supported on the frame for selectively moving the gate between open and closed positions in response to rotation of the shaft. A lock assembly is carried on the frame and is operably coupled to the operating shaft. The lock assembly includes a displacable stop member which, when the gate is closed, extends into the path of travel of the gate to prevent movement of the gate relative to the frame, and which moves in timed relation relative to movement of the gate such that upon rotation of the operating shaft to move the gate to an open position the stop member is automatically removed from the path of travel of the gate prior to movement of the gate toward an open position.

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"Specification for New Gravity Outlet Gates on Covered Hopper Cars, S-233-92 ( AAR S-233-92), " Association of American American Railroads, Mechanical Division, Manual of Standards and Recommended Practices, pp. C11-C13.4 (Sep. 1, 1992).
Miner AutoLOK Discharge Gate displayed at RSA show, Sep. 1992.
Miner AutoLok Discharge Gate Brochure MEM 1038-992-1M, dated Sep. 1992.

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