Mine self-advancing roof support and method of relocating a mine

Details Mine self-advancing roof support and method of relocating a mine Mine self-advancing roof support and method of relocating a mine

1984-09-21

1987-07-14

Leppink, James A.

Mining or in situ disintegration of hard material

Processes

Stabilizing underground structure

299 33, 405302, E21D 1544, E21D 2300

Patent

active

046798560

ABSTRACT:
A self-advancing roof support for the face roof support in underground mining operations, having a plurality of supporting frames with self-advancing mechanisms acting perpendicular to the breast of the working, which mechanisms advance the supporting frames in the direction of the breast of the working. In order to facilitate the relocation of a winning face equipped with such a self-advancing roof support, these supporting frames have a plurality of self-advancing gears acting parallel to the breast of the working, to successively shift the supporting frames in the lateral direction parallel to the breast of the working, so as to produce a cut or road for the installation of a new winning face at a head side of the face equipment and to advance the self-advancing roof support sideways into the road together with the complete face equipment while maintaining the formation.

REFERENCES:
patent: 2935310 (1960-05-01), Davies
patent: 3198087 (1965-09-01), Potts et al.
patent: 3631681 (1972-01-01), Taylor et al.
patent: 3855808 (1974-12-01), Alacchi
patent: 4007966 (1977-02-01), Wenneborg
patent: 4227833 (1980-10-01), Plester et al.
patent: 4391469 (1983-07-01), Arsuaga
patent: 4402634 (1983-09-01), Merten et al.
patent: 4432673 (1984-02-01), Buckmaster
Trade Journal "Gluckauf" 117, 1981, No. 24, pp. 1587-1590.
Trade Journal "Gluckauf" 116, 1980, No. 11, pp. 539-545.
Trade Journal "Gluckauf" 114, 1978, No. 10, pp. 430-434.

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