Coal mining auger

Details Coal mining auger Coal mining auger

1977-03-18

1979-06-26

Purser, Ernest R.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Adjustable head

299 86, 175106, 175272, 175319, 299 87, E21C 2506

Patent

active

041591496

ABSTRACT:
A coal-mining auger having (a) a hollow, tubular auger head with a spiral or helical coal conveyor mounted therein in concentric relation to the axis of rotation of said auger head, (b) a plurality of coal-cutting bits mounted on said auger head, said bits being orbitally movable with the auger head in circular paths concentric with said axis of rotation, said bits being also concurrently rotatable about their individual axes, and (c) coal-cutting bits which are radially adjustable relative to said axes of rotation. The individually rotatable bits are driven by planetary gear trains which are driven by the main auger shaft.

REFERENCES:
patent: RE27470 (1963-11-01), Alliman
patent: 514111 (1894-02-01), Abraham
patent: 1532243 (1925-04-01), Hebsacker
patent: 2797065 (1957-06-01), Houston
patent: 2919121 (1959-12-01), Ruth
patent: 3032128 (1962-05-01), Walton
patent: 3322466 (1967-05-01), Mennekes
patent: 3642325 (1972-02-01), Mulvaney
patent: 3856357 (1974-12-01), Wharton

Affiliated with

Also associated with

Rating

Coal mining auger does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coal mining auger, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coal mining auger will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1557155