BE558677A - - Google Patents

Info

Publication number
BE558677A
BE558677A BE558677DA BE558677A BE 558677 A BE558677 A BE 558677A BE 558677D A BE558677D A BE 558677DA BE 558677 A BE558677 A BE 558677A
Authority
BE
Belgium
Application number
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.)
Publication of BE558677A publication Critical patent/BE558677A/xx

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25Constructional features
    • B66F3/42Constructional features with self-contained pumps, e.g. actuated by hand
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14Telescopic props
    • E21D15/44Hydraulic, pneumatic, or hydraulic-pneumatic props

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Reciprocating Pumps (AREA)
  • Actuator (AREA)
  • Safety Valves (AREA)
BE558677D 1956-06-29 BE558677A (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2013456A GB838790A (en) 1956-06-29 1956-06-29 Improvements in or relating to telescopic hydraulic props

Publications (1)

Publication Number Publication Date
BE558677A true BE558677A (OSRAM)

Family

ID=10140922

Family Applications (1)

Application Number Title Priority Date Filing Date
BE558677D BE558677A (OSRAM) 1956-06-29

Country Status (4)

Country Link
BE (1) BE558677A (OSRAM)
DE (1) DE1125864B (OSRAM)
FR (1) FR1177614A (OSRAM)
GB (1) GB838790A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133720A (en) * 1962-03-27 1964-05-19 Commercial Shearing Yieldable pit posts

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1016105A (fr) * 1950-04-07 1952-11-03 Pilier extensible à commande hydraulique, utilisable comme étançon de mine susceptible de supporter de fortes pressions
DE919525C (de) * 1951-05-01 1954-10-25 Gullick Ltd Hydraulischer Grubenstempel
DE934342C (de) * 1954-06-27 1955-10-20 Gutehoffnungshuette Sterkrade Mehrteiliger hydraulischer Grubenstempel

Also Published As

Publication number Publication date
DE1125864B (de) 1962-03-22
FR1177614A (fr) 1959-04-28
GB838790A (en) 1960-06-22

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