ZA829170B - Hydraulic cylinder, in particular prop, with a combined function - Google Patents

Hydraulic cylinder, in particular prop, with a combined function

Info

Publication number
ZA829170B
ZA829170B ZA829170A ZA829170A ZA829170B ZA 829170 B ZA829170 B ZA 829170B ZA 829170 A ZA829170 A ZA 829170A ZA 829170 A ZA829170 A ZA 829170A ZA 829170 B ZA829170 B ZA 829170B
Authority
ZA
South Africa
Prior art keywords
hydraulic cylinder
combined function
particular prop
prop
combined
Prior art date
Application number
ZA829170A
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
Publication of ZA829170B publication Critical patent/ZA829170B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
ZA829170A 1981-12-15 1982-12-14 Hydraulic cylinder, in particular prop, with a combined function ZA829170B (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 (1)

Publication Number Publication Date
ZA829170B true ZA829170B (en) 1983-10-26

Family

ID=10965396

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA829170A ZA829170B (en) 1981-12-15 1982-12-14 Hydraulic cylinder, in particular prop, with a combined function

Country Status (9)

Country Link
JP (1) JPS58131401A (en)
AU (1) AU9152682A (en)
CS (1) CS241518B2 (en)
DE (2) DE8235289U1 (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
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 (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
DE8235289U1 (en) 1986-06-05
DE3246481A1 (en) 1983-06-23
GB2111594A (en) 1983-07-06
PL239587A1 (en) 1983-08-01
JPS58131401A (en) 1983-08-05
FR2518163A1 (en) 1983-06-17
AU9152682A (en) 1983-06-23
GB2111594B (en) 1986-02-05
HU183739B (en) 1984-05-28
CS914282A2 (en) 1985-08-15
CS241518B2 (en) 1986-03-13

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