FR1065335A - mine prop - Google Patents

mine prop

Info

Publication number
FR1065335A
FR1065335A FR1065335DA FR1065335A FR 1065335 A FR1065335 A FR 1065335A FR 1065335D A FR1065335D A FR 1065335DA FR 1065335 A FR1065335 A FR 1065335A
Authority
FR
France
Prior art keywords
mine prop
prop
mine
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Helmut Heese
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
Application granted granted Critical
Publication of FR1065335A publication Critical patent/FR1065335A/en
Expired legal-status Critical Current

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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations

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)
FR1065335D 1951-07-03 1952-07-03 mine prop Expired FR1065335A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1065335X 1951-07-03

Publications (1)

Publication Number Publication Date
FR1065335A true FR1065335A (en) 1954-05-24

Family

ID=7719031

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1065335D Expired FR1065335A (en) 1951-07-03 1952-07-03 mine prop

Country Status (1)

Country Link
FR (1) FR1065335A (en)

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