| 摘要 |
A system for operating the hopper doors of a railroad car as the car is in motion. The system includes an actuating device which is mounted on the surface adjacent the railroad tracks, and a mechanism mounted on the railcar which is contacted by the actuating device as the railcar rolls past the device. A first lever of the mechanism contacts an arm of the actuating device to open the hopper doors, while a second lever contacts the arm to close the hopper doors. The operation is accomplished without the use of powered cylinders or valves. The system can be used with railcars having either transverse hopper doors or longitudinal hopper doors.
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