Mining or in situ disintegration of hard material – Hard material disintegrating machines – Rotary cutter head with advance direction coincident or...
Patent
1983-07-25
1985-04-30
Novosad, Stephen J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Rotary cutter head with advance direction coincident or...
299 31, 15161, E21C 2724
Patent
active
045140120
ABSTRACT:
An excavatory machine for use in coal and other mining, has a pair of rotary cutters for simultaneous presentation to the work. The cutters are mounted on the ends of a medially fulcrumed lever which can be swung about its fulcrum so to increase the work ambit of the combined cutters. The fulcrum has means for raising and lowering it and holding it at selected elevation so to suit the height of the seam being worked. The cutter assembly is mounted on a saddle which is laterally slidable and drivable from side-to-side of a base slidable along the excavation floor in the direction the work is required to follow. This base is furnished with means enabling it to be nudged along in the said direction so to force the cutters into the work.
The base is provided with conveyor means to take away excavated matter and also with mechanism by which the path followed by the base may be up-or down-trended.
REFERENCES:
patent: 3827754 (1974-08-01), Gilley
patent: 4027918 (1977-06-01), Hujimuri et al.
DelSignore Mark J.
Maintel Pty. Limited
Novosad Stephen J.
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