Sliding stabilizer

Details Sliding stabilizer Sliding stabilizer

1995-07-07

1997-05-06

Graysay, Tamara L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

405294, 405299, E21D 1514, E21D 2300

Patent

active

056264410

ABSTRACT:
A sliding stabilizer is a machine for supporting the roof in the working zone of a mine. A sliding stabilizer operates in tandem with a mining roof support machine. A sliding stabilizer is capable of supporting the mine roof independently of the roof support machine. A sliding stabilizer has a peak roof covering, a flexible sheet that extends toward the roof covering of a support machine, and a rotating retractable leg. The retractable leg rotates from the mineral seam to inside the roof covering of a support machine. The retractable leg propels the peak into the working zone of the shearer. A sliding stabilizer supports a previously insupportable roof.

REFERENCES:
patent: 4309130 (1982-01-01), Bemmerl
patent: 4309131 (1982-01-01), Bollmann
Thomas M. Barczak, History and Future of Longwall Mining in the U.S., 1992 Bureau of Mines IC9316, p. 10, Fig. 16.
Donbass 5--no references cited--personal inspection 1983.

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