AU9152682A - Excessive pressure relief in mine prop - Google Patents

Excessive pressure relief in mine prop

Info

Publication number
AU9152682A
AU9152682A AU91526/82A AU9152682A AU9152682A AU 9152682 A AU9152682 A AU 9152682A AU 91526/82 A AU91526/82 A AU 91526/82A AU 9152682 A AU9152682 A AU 9152682A AU 9152682 A AU9152682 A AU 9152682A
Authority
AU
Australia
Prior art keywords
pressure relief
excessive pressure
mine prop
prop
mine
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.)
Abandoned
Application number
AU91526/82A
Other languages
English (en)
Inventor
Tamas Kovacs
Otto Lukonits
Miklos Petrassy
Csaba Pinter
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of AU9152682A publication Critical patent/AU9152682A/en
Abandoned legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Fluid-Damping Devices (AREA)
  • Actuator (AREA)
  • Prostheses (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
AU91526/82A 1981-12-15 1982-12-14 Excessive pressure relief in mine prop Abandoned AU9152682A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU813767A HU183739B (en) 1981-12-15 1981-12-15 Hydraulic cylinder of combination operation particularly prop
HU376781 1981-12-15

Publications (1)

Publication Number Publication Date
AU9152682A true AU9152682A (en) 1983-06-23

Family

ID=10965396

Family Applications (1)

Application Number Title Priority Date Filing Date
AU91526/82A Abandoned AU9152682A (en) 1981-12-15 1982-12-14 Excessive pressure relief in mine prop

Country Status (9)

Country Link
JP (1) JPS58131401A (cs)
AU (1) AU9152682A (cs)
CS (1) CS241518B2 (cs)
DE (2) DE3246481A1 (cs)
FR (1) FR2518163A1 (cs)
GB (1) GB2111594B (cs)
HU (1) HU183739B (cs)
PL (1) PL239587A1 (cs)
ZA (1) ZA829170B (cs)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3410269A1 (de) * 1984-03-21 1985-09-26 Ecker Maschinenbau GmbH, 6680 Neunkirchen Hydraulischer grubenstempel
PL254324A1 (en) * 1985-07-01 1987-03-09 Katowickie Gwarectwo Weglowe K Roof support for use in crumpable beds
WO1995034743A1 (en) * 1994-06-13 1995-12-21 Contitech Luftfedersysteme Gmbh Mine prop
AU9043298A (en) * 1997-08-12 1999-03-01 Chengeta, Cuthbert A pre-stressing device for a mine prop

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968782C (de) * 1949-05-10 1958-04-10 Kronprinz Ag Hydraulischer Grubenstempel
US2753036A (en) * 1952-03-06 1956-07-03 Joy Mfg Co Mine roof support-equipped mining apparatus
NL251933A (cs) * 1959-07-03
US3191506A (en) * 1962-03-19 1965-06-29 Ledeen Inc Hydropneumatic prop
US3410549A (en) * 1966-07-05 1968-11-12 Edward G. Cheak Vehicle suspension
DE1959109U (de) * 1966-12-16 1967-04-27 Kloeckner Werke Ag Hydraulischer grubenstempel.
FR2181525B1 (cs) * 1972-04-27 1976-10-29 Gratzmuller Jean Louis
GB1436416A (en) * 1972-08-11 1976-05-19 Zaklady K Mechanizacyjne Przem Mine support
FR2300894A1 (fr) * 1975-02-12 1976-09-10 Bennes Marrel Dispo
AT339237B (de) * 1975-09-09 1977-10-10 Voest Ag Hydraulischer grubenstempel

Also Published As

Publication number Publication date
ZA829170B (en) 1983-10-26
DE3246481A1 (de) 1983-06-23
DE8235289U1 (de) 1986-06-05
FR2518163A1 (fr) 1983-06-17
CS241518B2 (en) 1986-03-13
GB2111594A (en) 1983-07-06
PL239587A1 (en) 1983-08-01
CS914282A2 (en) 1985-08-15
GB2111594B (en) 1986-02-05
JPS58131401A (ja) 1983-08-05
HU183739B (en) 1984-05-28

Similar Documents

Publication Publication Date Title
AU570649B2 (en) Pressure relief device
DE3067734D1 (en) Improvements in high pressure hydraulic systems
AU535461B2 (en) Pressure relief value
DE3171004D1 (en) Improvements in high pressure hydraulic systems
GB8529401D0 (en) Pressure relief valve
GB2095371B (en) Pressure relief device
AU550031B2 (en) Pressure relief device
GB8600441D0 (en) Pressure relief systems
GB2081340B (en) Deformable mine prop
AU558555B2 (en) Mine prop relief valve
AU9152682A (en) Excessive pressure relief in mine prop
GB2163487B (en) Pressure relief valve
GB2017869B (en) Relief valves and mine props incorporating the same
EP0038638A3 (en) Improvements in high pressure hydraulic systems
AU586899B2 (en) Low baclkine pressure chain
AU7967882A (en) Mine support prop
ZA828996B (en) Hydraulic prop
AU560110B2 (en) Pressure relief device
GB2123528B (en) Pressure relief plugs
IE820120L (en) Pressure relief apparatus
GB2099958B (en) Pressure relief valves
AU1629883A (en) Puncture pressure relief
AU561615B2 (en) Hydraulic prop with extension
GB2160951B (en) Pressure relief valve
AU8618282A (en) Starch extraction