CS914282A2 - Hydraulicky valec, zejmena dulni vzpera s kombinovanou funkci - Google Patents

Hydraulicky valec, zejmena dulni vzpera s kombinovanou funkci

Info

Publication number
CS914282A2
CS914282A2 CS829142A CS914282A CS914282A2 CS 914282 A2 CS914282 A2 CS 914282A2 CS 829142 A CS829142 A CS 829142A CS 914282 A CS914282 A CS 914282A CS 914282 A2 CS914282 A2 CS 914282A2
Authority
CS
Czechoslovakia
Prior art keywords
vzpera
valec
kombinovanou
hydraulicky
funkci
Prior art date
Application number
CS829142A
Other languages
Czech (cs)
Other versions
CS241518B2 (en
Inventor
Tamas Ing Kovacs
Otto Ing Lukonits
Miklos Ing Petrassy
Osaba Ing 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
Publication of CS914282A2 publication Critical patent/CS914282A2/en
Publication of CS241518B2 publication Critical patent/CS241518B2/en

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)
CS829142A 1981-12-15 1982-12-14 Hydraulic cylinder especially mining raker with combined function CS241518B2 (en)

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 (2)

Publication Number Publication Date
CS914282A2 true CS914282A2 (en) 1985-08-15
CS241518B2 CS241518B2 (en) 1986-03-13

Family

ID=10965396

Family Applications (1)

Application Number Title Priority Date Filing Date
CS829142A CS241518B2 (en) 1981-12-15 1982-12-14 Hydraulic cylinder especially mining raker with combined function

Country Status (9)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3410269A1 (en) * 1984-03-21 1985-09-26 Ecker Maschinenbau GmbH, 6680 Neunkirchen Hydraulic pit prop
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
WO1999007980A1 (en) * 1997-08-12 1999-02-18 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 (en) * 1949-05-10 1958-04-10 Kronprinz Ag Hydraulic pit ram
US2753036A (en) * 1952-03-06 1956-07-03 Joy Mfg Co Mine roof support-equipped mining apparatus
NL251933A (en) * 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 (en) * 1966-12-16 1967-04-27 Kloeckner Werke Ag HYDRAULIC PIT STAMP.
FR2181525B1 (en) * 1972-04-27 1976-10-29 Gratzmuller Jean Louis
GB1436416A (en) * 1972-08-11 1976-05-19 Zaklady K Mechanizacyjne Przem Mine support
FR2300894A1 (en) * 1975-02-12 1976-09-10 Bennes Marrel Shock absorber for sledge mounted mine roof support - is membrane pressure accumulator housed inside piston of actuator strut
AT339237B (en) * 1975-09-09 1977-10-10 Voest Ag HYDRAULIC PIT STAMP

Also Published As

Publication number Publication date
DE3246481A1 (en) 1983-06-23
PL239587A1 (en) 1983-08-01
ZA829170B (en) 1983-10-26
FR2518163A1 (en) 1983-06-17
DE8235289U1 (en) 1986-06-05
AU9152682A (en) 1983-06-23
HU183739B (en) 1984-05-28
GB2111594B (en) 1986-02-05
GB2111594A (en) 1983-07-06
CS241518B2 (en) 1986-03-13
JPS58131401A (en) 1983-08-05

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