Cutting head for drift advancing machines

Details Cutting head for drift advancing machines Cutting head for drift advancing machines

1983-08-25

1986-02-04

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Cleansing fluid passage

299 79, E21B 1060, E21L 708, E21F 502

Patent

active

045681279

ABSTRACT:
The cutting head (1) has passages (14, 16; 22) extending through the cutting head in axial direction thereof and being connected with the axial water supply bore (8) by radial bores (9). Radial bores leading to the outlet nozzles open into the passages (14, 16; 22) extending through the cutting head in axial direction thereof. The passages (14, 16; 22) extending through the cutting head in axial direction thereof can be closed at at least one side by means of detachable closure members (15), so that these passages (14, 16; 22) extending through the cutting head in axial direction thereof can, after having removed the closure members, be cleaned by means of a cleaning-rod.

REFERENCES:
patent: 3563324 (1971-02-01), Lauber
patent: 4289357 (1981-09-01), Hintermann et al.

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