ZA713147B - Hydraulic mine prop with several inner props - Google Patents

Hydraulic mine prop with several inner props

Info

Publication number
ZA713147B
ZA713147B ZA713147A ZA713147A ZA713147B ZA 713147 B ZA713147 B ZA 713147B ZA 713147 A ZA713147 A ZA 713147A ZA 713147 A ZA713147 A ZA 713147A ZA 713147 B ZA713147 B ZA 713147B
Authority
ZA
South Africa
Prior art keywords
several inner
mine prop
inner props
hydraulic mine
props
Prior art date
Application number
ZA713147A
Other languages
English (en)
Inventor
K Wehner
Original Assignee
Kloeckner Werke Ag
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 Kloeckner Werke Ag filed Critical Kloeckner Werke Ag
Publication of ZA713147B publication Critical patent/ZA713147B/xx

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)
  • Press Drives And Press Lines (AREA)
ZA713147A 1970-07-01 1971-05-14 Hydraulic mine prop with several inner props ZA713147B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702032474 DE2032474A1 (de) 1970-07-01 1970-07-01 Hydraulischer Grubenstempel mit mehreren Innenstempeln

Publications (1)

Publication Number Publication Date
ZA713147B true ZA713147B (en) 1972-01-26

Family

ID=5775440

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA713147A ZA713147B (en) 1970-07-01 1971-05-14 Hydraulic mine prop with several inner props

Country Status (2)

Country Link
DE (1) DE2032474A1 (de)
ZA (1) ZA713147B (de)

Also Published As

Publication number Publication date
DE2032474A1 (de) 1972-01-13

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