FR1098501A - metal prop for mining - Google Patents

metal prop for mining

Info

Publication number
FR1098501A
FR1098501A FR1098501DA FR1098501A FR 1098501 A FR1098501 A FR 1098501A FR 1098501D A FR1098501D A FR 1098501DA FR 1098501 A FR1098501 A FR 1098501A
Authority
FR
France
Prior art keywords
mining
metal prop
prop
metal
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
Hans Gerlach
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 FR1098501A publication Critical patent/FR1098501A/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)
FR1098501D 1948-01-28 1948-01-28 metal prop for mining Expired FR1098501A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1098501T 1948-01-28

Publications (1)

Publication Number Publication Date
FR1098501A true FR1098501A (en) 1955-08-01

Family

ID=9619169

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1098501D Expired FR1098501A (en) 1948-01-28 1948-01-28 metal prop for mining

Country Status (1)

Country Link
FR (1) FR1098501A (en)

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