BE584049A - Improvements made to extendable hydraulic supports. - Google Patents

Improvements made to extendable hydraulic supports.

Info

Publication number
BE584049A
BE584049A BE584049A BE584049A BE584049A BE 584049 A BE584049 A BE 584049A BE 584049 A BE584049 A BE 584049A BE 584049 A BE584049 A BE 584049A BE 584049 A BE584049 A BE 584049A
Authority
BE
Belgium
Prior art keywords
improvements made
hydraulic supports
extendable hydraulic
extendable
supports
Prior art date
Application number
BE584049A
Other languages
French (fr)
Inventor
Bernard Tebb
Clarence Herbert Perry
Original Assignee
Mastabar Mining Equip Co Ltd
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 Mastabar Mining Equip Co Ltd filed Critical Mastabar Mining Equip Co Ltd
Publication of BE584049A publication Critical patent/BE584049A/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)
  • Actuator (AREA)
  • Forklifts And Lifting Vehicles (AREA)
BE584049A 1958-10-29 1959-10-27 Improvements made to extendable hydraulic supports. BE584049A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34603/58A GB862033A (en) 1958-10-29 1958-10-29 Improvements in or relating to extensible hydraulic supports

Publications (1)

Publication Number Publication Date
BE584049A true BE584049A (en) 1960-02-15

Family

ID=10367701

Family Applications (1)

Application Number Title Priority Date Filing Date
BE584049A BE584049A (en) 1958-10-29 1959-10-27 Improvements made to extendable hydraulic supports.

Country Status (4)

Country Link
US (1) US2985418A (en)
BE (1) BE584049A (en)
FR (1) FR1237069A (en)
GB (1) GB862033A (en)

Families Citing this family (2)

* 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
US4142449A (en) * 1976-02-03 1979-03-06 Thyssen Industrie Ag Hydraulic mine prop

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US371919A (en) * 1887-10-25 belden
US1886621A (en) * 1928-05-09 1932-11-08 William L Bagwill Cracking still and process
US2477533A (en) * 1946-10-19 1949-07-26 William A Whiting Pipe joint
BE486663A (en) * 1948-01-12
US2693223A (en) * 1952-02-21 1954-11-02 Goodrich Co B F Method of making flexible hollow connections

Also Published As

Publication number Publication date
FR1237069A (en) 1960-07-22
GB862033A (en) 1961-03-01
US2985418A (en) 1961-05-23

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