Coal planer

Details Coal planer Coal planer

1976-03-24

1977-05-24

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Cutter attached to endless chain or cable

E21C 2735

Patent

active

040251179

ABSTRACT:
A coal planer for use in an underground mine gallery comprises a central unit, a pair of loading heads arranged spaced from and to opposite sides of the central unit and a pair of intermediate units respectively located between the central unit and the loading heads and linked to the latter and the central unit. Each of the intermediate units is provided with a plurality of planing knives arranged vertically spaced from each other for cutting coal from the mine face during reciprocation of the coal planer in a direction parallel to the mine face, and with a bottom knife adapted to cut into the sole of the mine gallery.

REFERENCES:
patent: 3445138 (1969-05-01), Lobbe et al.

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