Mining apparatus

Details Mining apparatus Mining apparatus

1975-09-08

1977-08-30

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Stepper-type advance-causing means

61450, 299 33, 299 43, E21D 15502

Patent

active

040450872

ABSTRACT:
Mining apparatus for longwall mining comprising a mineral winning machine which traverses a mineral face, a row of self-advanceable roof supports parallel to the face, and a conveyor also parallel to the face for removing cut mineral, the supports having platforms which support the conveyor, the hydraulic props of the supports being positioned between the mineral face and the conveyor. The winning machine thereby can cut substantially across its whole depth, the props being adjacent the face to be cut. Ramps are provided on the supports and the conveyor to scoop out mineral onto the platforms and then on the conveyor, during advance of the supports and the conveyor.

REFERENCES:
patent: 3355213 (1967-11-01), Seddon
patent: 3445139 (1969-05-01), Von Hippel
patent: 3739586 (1973-06-01), Wehner
patent: 3779023 (1973-12-01), Koppers
patent: 3891275 (1975-06-01), Spies
patent: 3902325 (1975-09-01), Sigoh

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