Cutters and methods of cutting

Details Cutters and methods of cutting Cutters and methods of cutting

1973-09-26

1976-06-01

Purser, Ernest R.

Mining or in situ disintegration of hard material

Processes

Breaking down by direct contact with fluid

175422, 239104, E21C 2560

Patent

active

039604071

ABSTRACT:
The invention relates to methods of cutting spallable material such as rock using high pressure water jets. Two jets which preferably diverge cut slits in the material face. These slits are close together so that the material between them spalls out. The invention also provides apparatus for providing such jets.

REFERENCES:
patent: 3132852 (1964-05-01), Dolbear
patent: 3554602 (1971-01-01), Chaney
patent: 3746108 (1973-07-01), Hall

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