BE658329A - - Google Patents

Info

Publication number
BE658329A
BE658329A BE658329DA BE658329A BE 658329 A BE658329 A BE 658329A BE 658329D A BE658329D A BE 658329DA BE 658329 A BE658329 A BE 658329A
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.)
Filing date
Publication date
Application filed filed Critical
Publication of BE658329A publication Critical patent/BE658329A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with advancing shifting devices connected therewith
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
BE658329D 1964-01-18 1965-01-15 BE658329A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2315/64A GB1086532A (en) 1964-01-18 1964-01-18 Improvements in and relating to hydraulic mine roof supports

Publications (1)

Publication Number Publication Date
BE658329A true BE658329A (fr) 1965-04-30

Family

ID=9737396

Family Applications (1)

Application Number Title Priority Date Filing Date
BE658329D BE658329A (fr) 1964-01-18 1965-01-15

Country Status (4)

Country Link
US (1) US3302529A (fr)
BE (1) BE658329A (fr)
FR (1) FR1421056A (fr)
GB (1) GB1086532A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2329428A (en) * 1997-09-20 1999-03-24 Joy Mining Machinery Limited Improvements in and relating to a hydraulic control system
CN105240039A (zh) * 2015-10-29 2016-01-13 中国矿业大学 浮摇式液压支架

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1223621A (en) * 1916-07-24 1917-04-24 Charles F Scherenzel Lifting-jack.
US1850879A (en) * 1930-04-25 1932-03-22 Nathan C Hunt Valve and coupling
US3106378A (en) * 1960-12-27 1963-10-08 Stile Craft Mfg Inc Quick connect, valved coupling
BE634933A (fr) * 1962-07-31

Also Published As

Publication number Publication date
GB1086532A (en) 1967-10-11
FR1421056A (fr) 1965-12-10
US3302529A (en) 1967-02-07

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