Mine roof support

Details Mine roof support Mine roof support

1980-07-02

1982-01-05

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

405291, E21D 1544

Patent

active

043091318

ABSTRACT:
A mine roof support has a base, a supporting prop extending upwardly from the base, an elongated roof-supporting element having one portion supported by the supporting prop and another portion telescopable relative to the one portion toward a mine face and having a free end formed as a housing with a width corresponding to the width of the one portion, and a thrust prop arranged to support the free end section of the telescopable portion of the roof-supporting element and having a roof-side end section which is forcedly displaceable in the housing in direction of elongation of a mine and pivotable in a substantially vertical plane about an axle arranged in the housing.

REFERENCES:
patent: 3143862 (1964-08-01), Cowlishaw
patent: 3812681 (1974-05-01), Allen

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