| 摘要 |
A technique for mining coal or similar mineral employing existing auger holes or a specially drilled bore hole into the face of the coal, a guide anchor rod being inserted into the hole and having a pulley at its inner end, a first cable passing over the pulley pulls a coal recovery scoop into the hole, an additional cable is attached to the scoop and extends out of the hole to a winch which pulls the scoop and the coal out of the hole, and thereafter the first cable retracts the scoop into the hole to start another cycle of operation.
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