BE574154A - Improvements to hydraulic mine props - Google Patents

Improvements to hydraulic mine props

Info

Publication number
BE574154A
BE574154A BE574154A BE574154A BE574154A BE 574154 A BE574154 A BE 574154A BE 574154 A BE574154 A BE 574154A BE 574154 A BE574154 A BE 574154A BE 574154 A BE574154 A BE 574154A
Authority
BE
Belgium
Prior art keywords
mine props
hydraulic mine
hydraulic
props
mine
Prior art date
Application number
BE574154A
Other languages
French (fr)
Original Assignee
Dobson Ltd W E & F
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 Dobson Ltd W E & F filed Critical Dobson Ltd W E & F
Publication of BE574154A publication Critical patent/BE574154A/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
    • E21D15/60—Devices for withdrawing props or chocks
    • 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)
  • Reciprocating Pumps (AREA)
  • Ink Jet (AREA)
BE574154A 1958-10-25 1958-12-23 Improvements to hydraulic mine props BE574154A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3422258A GB903091A (en) 1958-10-25 1958-10-25 Improvements in or relating to hydraulic pit props

Publications (1)

Publication Number Publication Date
BE574154A true BE574154A (en) 1959-04-16

Family

ID=10362920

Family Applications (1)

Application Number Title Priority Date Filing Date
BE574154A BE574154A (en) 1958-10-25 1958-12-23 Improvements to hydraulic mine props

Country Status (3)

Country Link
BE (1) BE574154A (en)
FR (1) FR1229543A (en)
GB (1) GB903091A (en)

Also Published As

Publication number Publication date
FR1229543A (en) 1960-09-07
GB903091A (en) 1962-08-09

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