Continuous miner with improved roof-to-floor anchoring canopy un

Details Continuous miner with improved roof-to-floor anchoring canopy un Continuous miner with improved roof-to-floor anchoring canopy un

1977-11-28

1980-10-07

Pate, III, William F.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Stepper-type advance-causing means

299 33, 299 64, 299 87, E21C 2922

Patent

active

042264766

ABSTRACT:
A continuous mining machine comprising a central longitudinally extending conveyor assembly, a pair of cutting and conveying mechanisms mounted on the forward end of the central conveyor assembly for movement between a normal operating position wherein the cutting and conveying mechanisms are in alignment and extend laterally outwardly with respect to the forward receiving end of the conveyor assembly and a transporting position wherein the cutting and conveying mechanisms are in parallel relation alongside the central portion of the conveyor assembly, the cutting and conveying mechanisms having vertically movable endless track assemblies operable to move the continuous mining machine when the cutting and conveying mechanisms are in the transporting position, and a pair of mine floor-to-roof anchoring canopy units for (1) advancing the continuous mining machine so that the cutting and conveying mechanisms are moved inwardly of the working face, (2) facilitating the installation of mine roof bolts at positions close to the working face while affording roof protection to the operators, and (3) effecting a 90.degree. turning movement of the continuous mining machine.

REFERENCES:
patent: 3445139 (1969-05-01), Von Hippel
patent: 3558194 (1971-01-01), Renzing
patent: 3663054 (1962-05-01), Dubois
patent: 3677603 (1972-07-01), Small
patent: 3939958 (1976-02-01), Pyles
patent: 4046424 (1977-09-01), Montgomery

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