Mining methods as such and combined with equipment

Details Mining methods as such and combined with equipment Mining methods as such and combined with equipment

1973-12-03

1976-08-17

Purser, Ernest R.

Mining or in situ disintegration of hard material

With separation of materials

299 18, 299 19, E21D 103, E21F 1300, E21C 4106, E21C 4700

Patent

active

039750531

ABSTRACT:
This invention comprises two improved mining methods as such and combined with mining equipments for the mining and rock industries. The first, called the screw-mining-method, comprises benches which rotate around a turning-point area in a downwardly sloping screw shaped path. The benches are positioned radially to the turning-point area which contains a shaft or other transportation means between two points located at different altitudes. The second, called a method with horizontal-radial-rotating benches, operates similarly to the first method except that the benches rotate solely in a horizontal plane rather than in a downwardly sloping path. The method and equipments are adapted for use with material such as rock, ore, coal and any other commercially useful, as well as mineral materials excavated from the earth's crust.

REFERENCES:
patent: 861852 (1903-07-01), Hill
patent: 906765 (1908-12-01), Anderson
patent: 1980634 (1934-11-01), Philips
patent: 3098641 (1963-07-01), Baldwin
patent: 3349848 (1967-10-01), Burgh
patent: 3385068 (1968-05-01), Armentrout
patent: 3586379 (1971-06-01), Lambly
patent: 3692364 (1972-09-01), Henriksson et al.
patent: 3790214 (1974-02-01), Kilroy
"Portable Crusher for Open Pit and Quarry Operations," B. J. Kochanowsky, Mining Engineering, Dec. 1960, pp. 299-318.

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