Hook plough apparatus for longwall mining
AssigneeWorld Oil Mining Ltd.
InventorRobert W. Johns
Life of this patent
Estimating the term…
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.
Claims21
A hook plow apparatus for use in longwall mining in conjunction with a mining shield having rails therein running along the length of the shield, said apparatus comprising:
- a. a power transmission frame mounted for movement along said rails,
- b. a plow mounting body connected to said frame,
- c. upper and lower ranging plow blocks mounted on said plow mounting body,
- d. means for propelling said frame, said body, and said ranging plow blocks simultaneously along said rails,
- e. means for extending said mounting body and said ranging plow blocks toward the mine wall relative to said frame, and
- f. means for vertically extending said ranging plow blocks relative to said mounting body.
A mining apparatus for longwall mining comprising:
- a. a plurality of individually movable arch sections in side-by-side abutting relationship forming a tunnel like chamber having a bottom and a side wall and being open opposite said side wall toward the mining wall,
- b. rail means positioned on said bottom,
- c. a power transmission frame mounted for movement along said rails,
- d. a plow mounting body connected to said frame,
- e. upper and lower ranging plow blocks mounted on said plow mounting body,
- f. means for propelling said frame, said body, and said ranging plow blocks simultaneously along said rails,
- g. means for extending said mounting body and said ranging plow blocks toward the mine wall relative to said frame and said arch sections, and
- h. means for vertically extending said ranging plow blocks relative to said mounting body.
Dependencies are inferred from the claim text.