FR1090166A - étançon de mine extensible - Google Patents

étançon de mine extensible

Info

Publication number
FR1090166A
FR1090166A FR1090166DA FR1090166A FR 1090166 A FR1090166 A FR 1090166A FR 1090166D A FR1090166D A FR 1090166DA FR 1090166 A FR1090166 A FR 1090166A
Authority
FR
France
Prior art keywords
extendable
mine prop
prop
mine
extendable 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
English (en)
Inventor
Eugen Bellmann
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 FR1090166A publication Critical patent/FR1090166A/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
    • E21D15/5817—Devices for setting props or chocks in which the props are pre- loaded in which the lock is also activated

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)
FR1090166D 1953-02-21 1953-10-08 étançon de mine extensible Expired FR1090166A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1090166X 1953-02-21

Publications (1)

Publication Number Publication Date
FR1090166A true FR1090166A (fr) 1955-03-28

Family

ID=7721808

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1090166D Expired FR1090166A (fr) 1953-02-21 1953-10-08 étançon de mine extensible

Country Status (1)

Country Link
FR (1) FR1090166A (fr)

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