Rotary cutter heads for mineral mining machines

Details Rotary cutter heads for mineral mining machines Rotary cutter heads for mineral mining machines

1983-10-07

1986-02-04

Leppink, James A.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Cleansing fluid passage

299 42, E21C 3522, E21F 100, E21B 1060

Patent

active

045681287

ABSTRACT:
A rotary cutter head for a mining machine is provided with a plurality of cutter tools mounted on an annular end component which defines the end of the cutter head remote from the mining machine. Ventilating means are provided comprising air flow guide passages having air flow inducing spray means, the air flow inlets to the guide passages being in an exposed zone in which the action of cut mineral and/or of the newly exposed working face tends to scour the inlets preventing the build up of damp, fine mineral particles and thereby tending to prevent blockage of the inlets.

REFERENCES:
patent: 3843199 (1974-10-01), Nash et al.
patent: 3904246 (1975-09-01), Gandy et al.
patent: 3954302 (1976-05-01), Browning
patent: 4411475 (1983-10-01), Best et al.
patent: 4428619 (1984-01-01), Eagles et al.
patent: 4465318 (1984-08-01), Lewis et al.
patent: 4501449 (1985-02-01), Eagles
patent: 4516807 (1985-05-01), Eagles
patent: 4521058 (1985-06-01), Eagles et al.

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