FR57162E - étançon métallique de mine - Google Patents

étançon métallique de mine

Info

Publication number
FR57162E
FR57162E FR57162DA FR57162E FR 57162 E FR57162 E FR 57162E FR 57162D A FR57162D A FR 57162DA FR 57162 E FR57162 E FR 57162E
Authority
FR
France
Prior art keywords
metal mine
mine prop
prop
metal
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
Edmond Baily
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 FR57162E publication Critical patent/FR57162E/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)
FR57162D 1947-01-07 1947-01-07 étançon métallique de mine Expired FR57162E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR57162T 1947-01-07

Publications (1)

Publication Number Publication Date
FR57162E true FR57162E (fr) 1952-12-16

Family

ID=8691250

Family Applications (1)

Application Number Title Priority Date Filing Date
FR57162D Expired FR57162E (fr) 1947-01-07 1947-01-07 étançon métallique de mine

Country Status (1)

Country Link
FR (1) FR57162E (fr)

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