04212382 is referenced by 6 patents and cites 5 patents.

The device comprises a variable height metering door located over a conveyor used to remove material from a bunker. The door is pivotable, so that rogue material such as pit props may pass it, and is movable up and down relative to the conveyor, so that the depth of material on the conveyor is variable. The door may be moved by moving a frame on which it is mounted, for instance by use of hydraulic or pneumatic rams or a turnbuckle. The height of the door above the conveyor may be determined in response to signals received from sensors associated with the bunkering system.

Title
Bunkering system
Application Number
5/916750
Publication Number
4212382
Application Date
June 19, 1978
Publication Date
July 15, 1980
Inventor
Morgan J Williams
Melbourne
GB
Agent
Stevens Davis Miller & Mosher
Assignee
Coal
GB
IPC
B65G 43/08
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