Mining apparatus

Details Mining apparatus Mining apparatus

1979-08-31

1981-09-22

Purser, Ernest R.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

299 45, E21C 2724, E21C 3508

Patent

active

042906482

ABSTRACT:
The present invention is directed to a mining apparatus which includes a position detection device comprising at least one projector and receiver to measure position of the apparatus in a mine by receiving projected signals reflected off an edge of the mine.

REFERENCES:
patent: 3333893 (1967-08-01), Heimaster
patent: 3371964 (1968-03-01), Weber
patent: 3719394 (1973-03-01), Hartley
patent: 4072349 (1978-02-01), Hartley

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