Mining or in situ disintegration of hard material – Hard material disintegrating machines – Rotary cutter head with advance direction coincident or...
Patent
1977-10-04
1979-03-13
Purser, Ernest R.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Rotary cutter head with advance direction coincident or...
175 91, 299 71, 299 80, E21C 2724
Patent
active
041439198
ABSTRACT:
A mining machine comprises two cutting units each including a rotatable cutting head having cutting faces directed forwardly and rearwardly with respect to the direction of movement of the machine, and an elongated housing incorporating a drive mechanism for the cutting head extending along the axis of rotation of the cutting head, the cutting units being mounted side-by-side with the cutting heads adjacent each other, each housing being movable about a vertical axis towards the end of the housing remote from the cutting head and about a transverse horizontal axis between the vertical axis and the cutting head, means for moving the cutting units about the said axes, the housings of the two cutting units being mounted on a common horizontal slideway, and the slideway defining the transfer horizontal axis about which the cutting units may be pivoted.
REFERENCES:
patent: 2862700 (1958-12-01), Gonski
patent: 2868526 (1959-01-01), Jamison et al.
patent: 3245723 (1966-04-01), Gonski
patent: 3771611 (1973-11-01), Omura et al.
Atlow Mining Development Consultants Limited
Purser Ernest R.
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