Shortwall mining machine

Details Shortwall mining machine Shortwall mining machine

1978-02-21

1980-04-08

Pate, III, William F.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Stepper-type advance-causing means

299 18, 299 33, 299 34, 299 43, E21D 1506

Patent

active

041969340

ABSTRACT:
The invention provides a shortwall mining machine comprising an assembly, which preferably is articulated and has a protective canopy. The assembly is arranged parallel to a shortwall mineral face, and a cutter is hauled along a guide on the assembly to cut the face. As the face is cut the assembly is moved towards the face by use of rams connected between the assembly and stay units located in roadways adjacent the face. The cutter may be a scraper bucket or a plough, and is hauled across the face by either one motor in one of the roadways, or by two motors, one located in each roadway. The cutter may be steered by use of jacks on the assembly located in the roadways.

REFERENCES:
patent: 1710801 (1929-04-01), Morgan
patent: 3640580 (1972-02-01), White
patent: 3960408 (1976-06-01), Johns
patent: 4065184 (1977-12-01), Tipper

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