Mining or in situ disintegration of hard material – Hard material disintegrating machines – Cutter shiftable horizontally
Patent
1991-05-28
1993-03-09
Bagnell, David J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Cutter shiftable horizontally
299 31, E21C 2926, E21C 3108
Patent
active
051921162
ABSTRACT:
A gantry-type mobile mining machine includes a cutterwheel having an axis of rotation substantially parallel to the tunnel work face and carried by a boom assembly pivotally movable about an axis also substantially parallel to the tunnel work face and to the cutterwheel axis of rotation. A rotation assembly supports the boom assembly and cutterwheel and causes rotation of the cutterwheel and the boom assembly about an axis substantially perpendicular to the tunnel work face and to the cutterwheel axis of rotation, so that radial motion of the cutterwheel is possible in any desired direction generally parallel to the tunnel work face. A traverse assembly supported on a frame causes traverse movement of the cutterwheel, boom assembly and rotation assembly on the frame. Thrust cylinders thrust forward as a unit the cutterwheel, boom assembly and rotation assembly relative to the frame. A holding assembly secures the frame in the tunnel during thrusting by the thrust cylinders. A transport assembly supports and moves the frame of the machine during repositioning and tramming of the machine relative to the work face.
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"World Tunnelling", issue of Jun., 1991, p. N52, in part showing a Gantry (Portal) Miner, in an advertisement of Advanced Excavation & Cutting Technologies, a Division of Alpine Equipment Corporation, P.O. Box 767, State College, Pa. 16804.
Dahmen Neil J.
Turner John
Bagnell David J.
The Robbins Company
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