Mineral mining installation

Details Mineral mining installation Mineral mining installation

1979-07-05

1981-06-09

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Stepper-type advance-causing means

299 43, 299 33, 405293, E21C 2900

Patent

active

042721296

ABSTRACT:
A mining installation includes a mine roof support the base of which has a forward part on which is located an elevated track on which a mining machine can be supported for reciprocal movement. A conveyor is disposed beneath the cantilever track for the receipt of mined mineral, but does not bear any of the weight of the machine. The support element has utility supply conduits for use at any location along a mineral face. The installation can be used in thick seams working on the retreat principle and for seams of the order of 8 m can be provided with a rear section also having an elevated support track for supporting a machine capable of taking a substantial roof cut in the wake of the forward section.

REFERENCES:
patent: 3280570 (1966-10-01), Pollard
patent: 3471201 (1969-10-01), Small
patent: 3879088 (1975-04-01), Sodder et al.
patent: 4029361 (1977-06-01), Beckmann et al.
patent: 4065929 (1978-01-01), Simpson
patent: 4067618 (1978-01-01), Nakajima et al.
patent: 4072355 (1978-02-01), Pentith
patent: 4089181 (1978-05-01), Koppers
patent: 4155676 (1979-05-01), Friedrichs

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