GB1381629A - Jet-cutting machine - Google Patents

Jet-cutting machine

Info

Publication number
GB1381629A
GB1381629A GB3217572A GB3217572A GB1381629A GB 1381629 A GB1381629 A GB 1381629A GB 3217572 A GB3217572 A GB 3217572A GB 3217572 A GB3217572 A GB 3217572A GB 1381629 A GB1381629 A GB 1381629A
Authority
GB
United Kingdom
Prior art keywords
generator
tubes
cylinders
frame
ejector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3217572A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atlas Copco AB filed Critical Atlas Copco AB
Publication of GB1381629A publication Critical patent/GB1381629A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/60—Slitting by jets of water or other liquid

Abstract

1381629 Cutting by liquid jets ATLAS COPCO AB 10 July 1972 [8 July 1971] 32175/72 Headings B4B and B5L [Also in Division E1] A cutter, for rock, paper, plywood, plastics or asbestos, comprises a frame 12, to be fixed at least temporarily in position carrying a generator 22 for supplying fluid under pressure to a nozzle 30 to be emitted as a high velocity jet, the generator and nozzle being movable together relative to the frame 12. Two generators 22 are mounted on a head 20 which is reciprocated along slide beams 32 by hydraulic motor 46 which is reversed in response to limit valves 48. Each generator comprises a power piston 52 movable in a cylinder 24 and a coaxial ejector piston 54 of smaller area movable in a cylinder 56. The cylinders 24 are connected by conduits 58 to a valve 62 which connects them alternately to hydraulic fluid supply and drain conduits 64, 66 in response to means 86 detecting the motion of tubes 74 carried by the pistons, and the stroke is preferably synchronized with the motion of the head 20. The tubes 74 are supplied with water, which is fed through bores 70 and non-return valves 72 to ejector cylinders 56, and thence through tubes 28 to the nozzles 30. The position of the nozzles is adjustable by means of nuts 90. Alternatively, Figs. 5, 6 (not shown), a generator (128), which comprises a double acting power piston (136) connected to two ejector pistons (138), is carried on cylinders (122) reciprocated on guide rods (120) mounted on the frame.
GB3217572A 1971-07-08 1972-07-10 Jet-cutting machine Expired GB1381629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA714521A ZA714521B (en) 1971-07-08 1971-07-08 Rock-cutting machines rock-cutting machines

Publications (1)

Publication Number Publication Date
GB1381629A true GB1381629A (en) 1975-01-22

Family

ID=25563618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3217572A Expired GB1381629A (en) 1971-07-08 1972-07-10 Jet-cutting machine

Country Status (8)

Country Link
US (1) US3857516A (en)
JP (1) JPS54441B1 (en)
AU (1) AU471913B2 (en)
CA (1) CA971581A (en)
DE (1) DE2232993C2 (en)
FR (1) FR2144865B1 (en)
GB (1) GB1381629A (en)
ZA (1) ZA714521B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5180783U (en) * 1974-12-20 1976-06-26
JPS5180785U (en) * 1974-12-20 1976-06-26
JPS5180784U (en) * 1974-12-20 1976-06-26

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111490A (en) * 1975-09-05 1978-09-05 Liesveld Daniel J Method and apparatus for channel cutting of hard materials using high velocity fluid jets
US4074858A (en) * 1976-11-01 1978-02-21 Institute Of Gas Technology High pressure pulsed water jet apparatus and process
US4081200A (en) * 1976-12-10 1978-03-28 Flow Industries, Inc. Method and apparatus to remove structural concrete
US4176883A (en) * 1977-05-26 1979-12-04 Liesveld Daniel J Oscillating liquid jet system and method for cutting granite and the like
FR2458672A1 (en) * 1979-06-06 1981-01-02 Gewerk Eisenhuette Westfalia Hydraulic mining machine water supply system - has water and electricity supply rails along face conveyor for high pressure pump
CA1233638A (en) * 1984-04-16 1988-03-08 Ryszard J. Puchala Method and apparatus to remove concrete
US4854770A (en) * 1984-04-16 1989-08-08 Indescor Hydrodynamics Inc. Method and apparatus for removal of surface material
US4753549A (en) * 1986-08-29 1988-06-28 Nlb Corporation Method and apparatus for removing structural concrete
JPS63233730A (en) * 1987-03-20 1988-09-29 株式会社　丸山製作所 Frost damage preventing method and apparatus
US4793734A (en) * 1987-10-22 1988-12-27 Nlb Apparatus for removing structural concrete
GB2213513B (en) * 1987-12-10 1991-10-16 Coal Ind Improvements in or relating to mineral mining machines
DE69029943T2 (en) * 1989-07-21 1997-09-18 Australian Stone Tech METHOD AND DEVICE FOR CUTTING EROSIVE MATERIALS USING HIGH PRESSURE WATER
WO1994007001A1 (en) * 1992-09-18 1994-03-31 Ned Jet Cutting Systems Inc. Programmable oscillating liquid jet cutting system
US8814274B2 (en) * 2004-10-27 2014-08-26 Gerard J. MacNeil Machine and method for deconstructing a vertical wall
US8191972B2 (en) * 2004-10-27 2012-06-05 Mac & Mac Hydrodemolition Inc. Hydrodemolition machine for inclined surfaces
US8538697B2 (en) * 2009-06-22 2013-09-17 Mark C. Russell Core sample preparation, analysis, and virtual presentation
US8827373B2 (en) * 2010-02-03 2014-09-09 Mac & Mac Hydrodemolition Inc. Top-down hydro-demolition system with rigid support frame

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US531019A (en) * 1894-12-18 Coal-mining machine
US81760A (en) * 1868-09-01 Improved coal-miotg apparatus
US2501639A (en) * 1948-05-11 1950-03-21 Chiksan Co Zero-moment swivel nozzle
US3165361A (en) * 1960-05-05 1965-01-12 Coal Industry Patents Ltd Rotary pick mining machine
US3241772A (en) * 1963-10-25 1966-03-22 Elkhart Brass Mfg Co Water curtain nozzle
US3521820A (en) * 1967-01-31 1970-07-28 Exotech Hydraulic pulsed jet device
US3565191A (en) * 1969-05-27 1971-02-23 Ingersoll Rand Co Hydraulic jet drills
US3592387A (en) * 1969-12-24 1971-07-13 Ulysse J Pilotte Hydraulic-powered screw-driven paint sprayer
US3708121A (en) * 1971-04-19 1973-01-02 Exotech Apparatus for forming pulse jets of liquid
JPS5024737A (en) * 1973-06-27 1975-03-17

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5180783U (en) * 1974-12-20 1976-06-26
JPS5180785U (en) * 1974-12-20 1976-06-26
JPS5180784U (en) * 1974-12-20 1976-06-26

Also Published As

Publication number Publication date
DE2232993B1 (en) 1975-02-06
ZA714521B (en) 1972-09-27
JPS54441B1 (en) 1979-01-11
DE2232993C2 (en) 1975-09-11
FR2144865B1 (en) 1977-01-14
AU471913B2 (en) 1976-05-06
FR2144865A1 (en) 1973-02-16
AU4427472A (en) 1974-01-10
US3857516A (en) 1974-12-31
CA971581A (en) 1975-07-22
DE2232993A1 (en) 1973-01-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee