Contour miner

Details Contour miner Contour miner

1979-05-24

1981-04-07

Pate, III, William F.

Mining or in situ disintegration of hard material

Processes

Stabilizing underground structure

299 18, 299 17, 299 31, 299 33, 299 52, 405288, E21C 506, E21C 2506, E21D 1502

Patent

active

042601959

ABSTRACT:
A contour miner has walker means carrying an external deck outside the formation being mined having power supply and control means for movement along the periphery of a coal seam with a reciprocating carriage having a rotary cutter for removing the coal from a work face extending inwardly below the overburden perpendicular to the seam periphery; a conveyor extends adjacent the work face and conveys the removed coal out beyond the external deck; an internal roof support-walker assembly is positioned inwardly of the formation and has hydraulic cylinder actuated movable roof supports and ground pads and hydraulic cylinders for walking forward toward the work face with dragline means moving prefabricated roof supports behind the support-walker assembly as it is moved toward the work face.

REFERENCES:
patent: 3169796 (1965-02-01), Long et al.
patent: 3677603 (1972-07-01), Small
patent: 3834762 (1974-09-01), Kakajima
patent: 4017122 (1977-04-01), Simpson
patent: 4099786 (1978-07-01), Kakajima
patent: 4183586 (1980-01-01), Owen

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