Hook plough apparatus for longwall mining

Details Hook plough apparatus for longwall mining Hook plough apparatus for longwall mining

1975-10-31

1977-03-22

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

With mine roof-supporting means

299 11, 299 34, 299 80, E21C 2735, E21D 1502

Patent

active

040133206

ABSTRACT:
A hook plow apparatus for use in longwall mining and particularly adapted for use in conjunction with a fixed arch shield mining system having rails mounted along the length of the shield. The apparatus includes a power transmission frame mounted for movement along the rails, a plow mounting body connected to the frame, upper and lower vertically extendable ranging plow blocks mounted on the plow mounting body and having plow blades thereon, means for propelling the frame, the mounting body and the ranging plow blocks along the rails, and means for extending the mounting body and the ranging plow blocks vertically and laterally toward the mine wall relative to the to the power transmission frame.

REFERENCES:
patent: 3310346 (1967-03-01), Heyer
patent: 3361479 (1968-01-01), Lobbe
patent: 3861749 (1975-01-01), Georg

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