Coal mining drum with adjustable linier edge cutters

Details Coal mining drum with adjustable linier edge cutters Coal mining drum with adjustable linier edge cutters

1979-07-13

1981-07-14

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...

175382, 175394, E21C 3518

Patent

active

042782961

ABSTRACT:
A coal winning machine with a mechanical tool has a tool body provided with one or more projecting flanges helically surrounding the axis of rotation of the tool body. Cutting tools are provided, each having a linear cutting edge, and these are removably mounted on the flange or flanges in such a manner that they can assume at least two alternative positions in each of which the cutting edge of the respective tool defines a different cutting angle.

REFERENCES:
patent: 1019251 (1912-03-01), Hess
patent: 3085795 (1963-04-01), Snipe et al.
patent: 3295232 (1967-01-01), Oglesby et al.
patent: 3343883 (1967-09-01), Whittaker

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