BE684146A - - Google Patents

Info

Publication number
BE684146A
BE684146A BE684146DA BE684146A BE 684146 A BE684146 A BE 684146A BE 684146D A BE684146D A BE 684146DA BE 684146 A BE684146 A BE 684146A
Authority
BE
Belgium
Prior art keywords
forestay
guide sleeve
sleeve
frame according
guide
Prior art date
Application number
Other languages
English (en)
French (fr)
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 BE684146A publication Critical patent/BE684146A/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting devices
    • 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
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/517—Extension elements
    • 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
    • E21D15/50—Component parts or details of props
    • E21D15/52—Extensible units located above or below standard props
    • E21D15/526—Extensible units located above or below standard props for step-by-step extension of the prop
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/049—Connecting devices between the head or foot of a prop and the cap or base of the roof support

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)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Catching Or Destruction (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
BE684146D 1965-07-16 1966-07-14 BE684146A (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1965K0051733 DE1923414U (de) 1965-07-16 1965-07-16 Hydraulische grubenausbaurahmen.

Publications (1)

Publication Number Publication Date
BE684146A true BE684146A (OSRAM) 1966-12-16

Family

ID=7226103

Family Applications (1)

Application Number Title Priority Date Filing Date
BE684146D BE684146A (OSRAM) 1965-07-16 1966-07-14

Country Status (3)

Country Link
BE (1) BE684146A (OSRAM)
DE (1) DE1923414U (OSRAM)
NL (1) NL6609824A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114353720B (zh) * 2022-03-21 2022-06-17 太原向明智控科技有限公司 一种基于拉线位移传感器的液压支架采高测量装置及方法

Also Published As

Publication number Publication date
DE1923414U (de) 1965-09-16
NL6609824A (OSRAM) 1967-01-17

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