Mining unit of coal combines

Details Mining unit of coal combines Mining unit of coal combines

1979-02-12

1980-08-19

Purser, Ernest R.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Tooth mounted on helical head portion or head with helical...

299 89, E21C 2724, E21C 3520

Patent

active

042180953

ABSTRACT:
A mining unit for a coal combine comprising a cylinder having a cap plate d helically wound panels on the cylinder. The edges of the plate and the panels are provided with cutter holders. The perimeter of the panels project beyond the edge of the cylinder in the direction of the combine body forming a conical profile. The cylinder overlaps the body of the combine. An element mounting the unit on a drive shaft of the combine is situated inside the cylinder so as to be partly within the region of the cap plate.

REFERENCES:
patent: 3085795 (1963-04-01), Snipe et al.
patent: 3904246 (1975-09-01), Gandy et al.

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