Mining or in situ disintegration of hard material – Hard material disintegrating machines – Rotary cutter head with advance direction coincident or...
Patent
1991-06-25
1993-06-22
Bagnell, David J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Rotary cutter head with advance direction coincident or...
299 73, 299 75, F21C 2506, F21C 2552
Patent
active
052211223
ABSTRACT:
A mining machine having a frame undercarriage having forward and rearward ends provided with a traction assembly for driving the frame undercarriage towards a seam face to be mined. A cutting assembly is provided which includes a plurality of rotatable outer elements each having a substantially horizontal rotation axis disposed perpendicularly to the seam face and an assembly for swinging the cutting assembly up and down with respect to the seam face about a horizontal swing axis parallel to the seam face. The swinging assembly is pivotally mounted on the forward end of the carriage to input pivotal movement of the cutting assembly about a vertical pivot axis.
REFERENCES:
patent: 2920879 (1960-01-01), Driehaus
patent: 4596424 (1986-06-01), Wilcox, Jr. et al.
patent: 4848844 (1989-07-01), Weiss
Bagnell David J.
Mraz Project Consulting Services, Inc.
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