Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Cleansing fluid passage
Patent
1993-09-14
1995-01-03
Novosad, Stephen J.
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Cleansing fluid passage
175424, 239600, 239DIG8, B05B 1506, E21C 3522
Patent
active
053780485
ABSTRACT:
A water spray nozzle (1) for location in a receiving bore (2) of a pick box (3) of a rotary cutting head (4) of a mining machine, comprising an elongate and generally cylindrical body member (5) having at one end an entry nose (6) and at the other end an enlarged extraction head (7), in use, intended to remain outside the receiving bore (2). A radial, water inlet orifice (8) intermediate the ends of the body member (5) leading to a water receiving chamber (25). A water sealing ring (9) located in a retaining groove (10) in the body member (5) between the water inlet orifice (8) and the nose (6) . A water discharge orifice (11) is in communication with the chamber (25). A reduced diameter formation (12) on the body member (5) has a resilient, nozzle-retaining ring (13) of material and/or dimensions such that it is compressible and/or deformable, into a nozzle retaining mode, without additional retaining means. The invention also includes a combination of nozzle (1) and pick box (3) , and also a mineral cutting head (4) provided with such pick boxes.
REFERENCES:
patent: 5007684 (1991-04-01), Parrott
patent: 5195805 (1993-03-01), Claphan
patent: 5234258 (1993-08-01), Komotzki
Minnovation Limited
Novosad Stephen J.
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