Mining or in situ disintegration of hard material – Processes
Patent
1983-12-06
1985-10-22
Novosad, Stephen J.
Mining or in situ disintegration of hard material
Processes
299 31, 299 33, 299 73, E21C 4100, E21C 4700
Patent
active
045484422
ABSTRACT:
A first mobile mining machine for cutting mining tunnels in hard rock, which includes a horizontally swinging wheel-like cutterhead assembly mounted on a crawler and base frame assembly. The cutterhead assembly consists of a transverse horizontal axis wheel-like drum on which are multiple peripherally mounted rolling cutter units.
A second mobile mining machine for cutting mining tunnels in hard rock, which includes a horizontally swinging and vertically ranging wheel-like cutterhead assembly mounted on a crawler and base frame assembly. The cutterhead assembly consists of a transverse horizontal axis wheel-like drum on which are multiple peripherally mounted rolling cutter units.
A method of cutting mining tunnels in hard rock which includes the steps of providing a wheel-like cutterhead assembly for cutting the hard rock, rotating the cutterhead assembly about its horizontal axis, plunging the rotating cutterhead forward into the hard rock, sweeping the rotating cutterhead assembly sideward in a first horizontal direction through the hard rock, plunging the rotating cutterhead forward into the hard rock, then sweeping the rotating cutterhead sideward in the other horizontal direction, and then repeating the last four steps.
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Kindsvater James P.
Moffat Robert B.
Sugden David B.
Waddell Bruce A.
Bui Thuy M.
Novosad Stephen J.
The Robbins Company
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