Oscillating liquid jet system and method for cutting granite and

Details Oscillating liquid jet system and method for cutting granite and Oscillating liquid jet system and method for cutting granite and

1977-05-26

1979-12-04

Pate, III, William

Mining or in situ disintegration of hard material

Processes

Breaking down by direct contact with fluid

239101, 239380, 299 15, E21C 2560, E21C 4112

Patent

active

041768833

ABSTRACT:
A method and apparatus for cutting rock materials has been devised in which a series of jets are produced by a nozzle assembly, the nozzle assembly being constructed and arranged to advance along the surface of the rock material and to form a channel or line of cut of predetermined width and depth therein. As the nozzle assembly makes each pass along the intended line of cut, the assembly is oscillated in a direction transversely of its path of travel along the intended line of cut in order to better erode the material, form a clearly defined channel with a minimum of interference which may otherwise result from spalling or collection of liquid in the channel. Alternate forms of systems are disclosed which are capable of cutting at different selected angles ranging between vertical and horizontal lines of cut; and alternating forms of oscillating means are disclosed which may consist either of utilization of a revolving cam within a channel formed in the nozzle assembly or high intensity pulse jets which alternately deliver pulses of water under high intensity against opposite sides of the nozzle assembly.

REFERENCES:
patent: 2758653 (1956-08-01), Desbrow
patent: 3756106 (1973-09-01), Chadwick
patent: 3857516 (1974-12-01), Taylor et al.
patent: 3960407 (1976-06-01), Noren

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