Method for cutting minerals and cutting machine

Details Method for cutting minerals and cutting machine Method for cutting minerals and cutting machine

1976-09-01

1978-09-05

Purser, Ernest R.

Mining or in situ disintegration of hard material

Processes

299 75, E21C 2724

Patent

active

041114884

ABSTRACT:
In a method and apparatus for cutting minerals utilizing a cutting tool provided with cutting teeth, the tool rotates about an axis approximately parallel to the winning face and is moved at a feeding rate essentially in axial direction. Several grooves spaced from each other are carved in sequence, and in dependence on the mineral properties the feeding rate is increased with respect to the rotatory velocity when a brittle mineral is to be cut, while the feeding rate is diminished with a tough mineral.

REFERENCES:
patent: 1797024 (1931-03-01), Degenhardt et al.
patent: 2136921 (1938-11-01), Joy
patent: 3302974 (1967-02-01), Hlinsky
patent: 3353871 (1967-11-01), Arentzen

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