FR1006677A - étai - Google Patents

étai

Info

Publication number
FR1006677A
FR1006677A FR1006677DA FR1006677A FR 1006677 A FR1006677 A FR 1006677A FR 1006677D A FR1006677D A FR 1006677DA FR 1006677 A FR1006677 A FR 1006677A
Authority
FR
France
Prior art keywords
prop
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
English (en)
Inventor
Emil Overlack
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 FR1006677A publication Critical patent/FR1006677A/fr
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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/581—Devices for setting props or chocks in which the props are pre- loaded
    • 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
    • E21D15/02—Non-telescopic 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)
FR1006677D 1948-02-10 1948-02-10 étai Expired FR1006677A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1006677T 1948-02-10

Publications (1)

Publication Number Publication Date
FR1006677A true FR1006677A (fr) 1952-04-25

Family

ID=9565981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1006677D Expired FR1006677A (fr) 1948-02-10 1948-02-10 étai

Country Status (1)

Country Link
FR (1) FR1006677A (fr)

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