HU183739B - Hydraulic cylinder of combination operation particularly prop - Google Patents

Hydraulic cylinder of combination operation particularly prop Download PDF

Info

Publication number
HU183739B
HU183739B HU813767A HU376781A HU183739B HU 183739 B HU183739 B HU 183739B HU 813767 A HU813767 A HU 813767A HU 376781 A HU376781 A HU 376781A HU 183739 B HU183739 B HU 183739B
Authority
HU
Hungary
Prior art keywords
hydraulic cylinder
cylinder according
hydraulic
gas
piston
Prior art date
Application number
HU813767A
Other languages
English (en)
Hungarian (hu)
Inventor
Tamas Kovacs
Otto Lukonits
Miklos Petrassy
Csaba Pinter
Original Assignee
Tatabanyai Szenbanyak
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 Tatabanyai Szenbanyak filed Critical Tatabanyai Szenbanyak
Priority to HU813767A priority Critical patent/HU183739B/hu
Priority to FR8220860A priority patent/FR2518163A1/fr
Priority to GB08235619A priority patent/GB2111594B/en
Priority to ZA829170A priority patent/ZA829170B/xx
Priority to CS829142A priority patent/CS241518B2/cs
Priority to AU91526/82A priority patent/AU9152682A/en
Priority to DE19823246481 priority patent/DE3246481A1/de
Priority to JP57220014A priority patent/JPS58131401A/ja
Priority to PL23958782A priority patent/PL239587A1/xx
Priority to DE8235289U priority patent/DE8235289U1/de
Publication of HU183739B publication Critical patent/HU183739B/hu

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)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Prostheses (AREA)
HU813767A 1981-12-15 1981-12-15 Hydraulic cylinder of combination operation particularly prop HU183739B (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
HU813767A HU183739B (en) 1981-12-15 1981-12-15 Hydraulic cylinder of combination operation particularly prop
FR8220860A FR2518163A1 (fr) 1981-12-15 1982-12-13 Cylindre hydraulique, notamment etancon de mine a fonction combinee
GB08235619A GB2111594B (en) 1981-12-15 1982-12-14 Hydraulic cylinder, in particular prop, with a combined function
ZA829170A ZA829170B (en) 1981-12-15 1982-12-14 Hydraulic cylinder, in particular prop, with a combined function
CS829142A CS241518B2 (en) 1981-12-15 1982-12-14 Hydraulic cylinder especially mining raker with combined function
AU91526/82A AU9152682A (en) 1981-12-15 1982-12-14 Excessive pressure relief in mine prop
DE19823246481 DE3246481A1 (de) 1981-12-15 1982-12-15 Hydraulischer zylinder, insbesondere grubenstempel, mit kombinierter funktion
JP57220014A JPS58131401A (ja) 1981-12-15 1982-12-15 流体圧作動シリンダ装置
PL23958782A PL239587A1 (en) 1981-12-15 1982-12-15 Hydraulic cylinder in particular that used as a mine prop
DE8235289U DE8235289U1 (de) 1981-12-15 1982-12-15 Hydraulischer Zylinder, insbesondere Grubenstempel, mit kombinierter Funktion

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
HU183739B true HU183739B (en) 1984-05-28

Family

ID=10965396

Family Applications (1)

Application Number Title Priority Date Filing Date
HU813767A HU183739B (en) 1981-12-15 1981-12-15 Hydraulic cylinder of combination operation particularly 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
AU2789895A (en) * 1994-06-13 1996-01-05 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
FR2518163A1 (fr) 1983-06-17
DE3246481A1 (de) 1983-06-23
DE8235289U1 (de) 1986-06-05
GB2111594B (en) 1986-02-05
AU9152682A (en) 1983-06-23
CS914282A2 (en) 1985-08-15
GB2111594A (en) 1983-07-06
JPS58131401A (ja) 1983-08-05
ZA829170B (en) 1983-10-26
PL239587A1 (en) 1983-08-01
CS241518B2 (en) 1986-03-13

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Legal Events

Date Code Title Description
HU90 Patent valid on 900628
HMM4 Cancellation of final prot. due to non-payment of fee