GB954660A - Hydraulic pit prop - Google Patents

Hydraulic pit prop

Info

Publication number
GB954660A
GB954660A GB2267460A GB2267460A GB954660A GB 954660 A GB954660 A GB 954660A GB 2267460 A GB2267460 A GB 2267460A GB 2267460 A GB2267460 A GB 2267460A GB 954660 A GB954660 A GB 954660A
Authority
GB
United Kingdom
Prior art keywords
valve
duct
inlet
prop
hydraulic pit
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
GB2267460A
Other languages
English (en)
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of GB954660A publication Critical patent/GB954660A/en
Expired 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)
  • Safety Valves (AREA)
  • Fluid-Damping Devices (AREA)
GB2267460A 1959-07-03 1960-06-28 Hydraulic pit prop Expired GB954660A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1959G0027435 DE1241390B (de) 1959-07-03 1959-07-03 Hydraulischer Grubenstempel

Publications (1)

Publication Number Publication Date
GB954660A true GB954660A (en) 1964-04-08

Family

ID=7123209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2267460A Expired GB954660A (en) 1959-07-03 1960-06-28 Hydraulic pit prop

Country Status (4)

Country Link
BE (1) BE592567A (en, 2012)
DE (1) DE1241390B (en, 2012)
GB (1) GB954660A (en, 2012)
NL (1) NL251933A (en, 2012)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT339237B (de) * 1975-09-09 1977-10-10 Voest Ag Hydraulischer grubenstempel
HU183739B (en) * 1981-12-15 1984-05-28 Tatabanyai Szenbanyak Hydraulic cylinder of combination operation particularly prop

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE899483C (de) * 1953-11-05 Eisenwerk Wanheim G.M.B.H., Duisburg-Wanheim Eiserner Grubenstempel
DE849682C (de) * 1950-10-05 1952-09-18 August Hoch Aus Zylinder und Kolben bestehende Ausbauvorrichtung mit federnder OElbremse
DE928945C (de) * 1951-06-09 1955-06-16 Eisenwerk Wanheim G M B H Verstellbarer hydraulischer Grubenstempel
DE1000315B (de) * 1956-03-23 1957-01-10 Hermann Schwarz K G Mehrteiliges hydraulisches Stuetzelement fuer den Grubenausbau
BE563275A (en, 2012) * 1956-12-27

Also Published As

Publication number Publication date
DE1241390B (de) 1967-06-01
NL251933A (en, 2012)
BE592567A (fr) 1960-10-02

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