Device for supplying fluid to a tool for breaking hard material

Details Device for supplying fluid to a tool for breaking hard material Device for supplying fluid to a tool for breaking hard material

1983-02-25

1984-12-18

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Cleansing fluid passage

299 86, 299 12, E21C 3522

Patent

active

044887590

ABSTRACT:
The invention relates to a device for supplying fluid to a tool (10) for breaking hard material, which is rotatably carried in a holder (11). Means are provided for supplying fluid to a nozzle (24) when the tool (10) is displaced axially rearwards during operation, said nozzle being located in connection with the tool (10). For purposes of facilitating rotation of the tool (10) about the longitudinal axis (29) thereof, the device is designed such that a torque is produced acting on the tool, and the tool seat (13,14) in the holder (11) is flushed when the tool (10) is displaced axially rearwards.

REFERENCES:
patent: 4333687 (1982-06-01), Barnstorf

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