Longwall mineral winning machine with adjustable cutting jet

Details Longwall mineral winning machine with adjustable cutting jet Longwall mineral winning machine with adjustable cutting jet

1981-01-27

1983-03-08

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Sidewall-working

299 17, 299 81, E21C 2560, E21C 2568

Patent

active

043759041

ABSTRACT:
A shearer-type mineral winning machine has rotatable cutting drums supported by swinging arms at the ends of its main body. High-pressure water emission nozzles are supported by adjustable carriers in positions generally adjacent the drums to effect preliminary cuts in a mineral face just in advance of the cutting drums.

REFERENCES:
patent: 3337269 (1967-08-01), Mennekes et al.
patent: 4181363 (1980-01-01), Goris et al.
patent: 4239290 (1980-12-01), Goris et al.
patent: 4265487 (1981-05-01), Barker

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