FR1005424A - étançon de mine - Google Patents

étançon de mine

Info

Publication number
FR1005424A
FR1005424A FR1005424DA FR1005424A FR 1005424 A FR1005424 A FR 1005424A FR 1005424D A FR1005424D A FR 1005424DA FR 1005424 A FR1005424 A FR 1005424A
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
English (en)
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 FR1005424A publication Critical patent/FR1005424A/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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/40—Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted

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)
FR1005424D 1947-07-17 1947-07-17 étançon de mine Expired FR1005424A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1005424T 1947-07-17

Publications (1)

Publication Number Publication Date
FR1005424A true FR1005424A (fr) 1952-04-10

Family

ID=9564769

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1005424D Expired FR1005424A (fr) 1947-07-17 1947-07-17 étançon de mine

Country Status (1)

Country Link
FR (1) FR1005424A (fr)

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