Apparatus for cutting erosive materials using high pressure water device

摘要

PCT No. PCT/AU90/00270 Sec. 371 Date Mar. 23, 1992 Sec. 102(e) Date Mar. 23, 1992 PCT Filed Jun. 26, 1990 PCT Pub. No. WO91/01432 PCT Pub. Date Feb. 7, 1991.Apparatus for cutting erosive materials such as stone and the like includes a high-velocity, high-pressure water lance which can be raised and lowered as necessary. The lower end of the water lance carries a cutting head in the form of a nozzle assembly able to be rotated about the longitudinal axis of the water lance. The water lance is mounted upon a carriage which can be propelled in directions at right angles to each other and the water lance may be supported by a vertically-disposed truss, which itself may be relocatable about the longitudinal axis of the lance.