FR1221659A - Expansion anchor bolt, more particularly intended for the suspended support of mine roofs - Google Patents

Expansion anchor bolt, more particularly intended for the suspended support of mine roofs

Info

Publication number
FR1221659A
FR1221659A FR783231A FR783231A FR1221659A FR 1221659 A FR1221659 A FR 1221659A FR 783231 A FR783231 A FR 783231A FR 783231 A FR783231 A FR 783231A FR 1221659 A FR1221659 A FR 1221659A
Authority
FR
France
Prior art keywords
anchor bolt
particularly intended
expansion anchor
suspended support
mine roofs
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
FR783231A
Other languages
French (fr)
Inventor
Jean-Pierre-Willy Bock
Bock
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
Priority to FR783231A priority Critical patent/FR1221659A/en
Application granted granted Critical
Publication of FR1221659A publication Critical patent/FR1221659A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/008—Anchoring or tensioning means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR783231A 1959-01-05 1959-01-05 Expansion anchor bolt, more particularly intended for the suspended support of mine roofs Expired FR1221659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR783231A FR1221659A (en) 1959-01-05 1959-01-05 Expansion anchor bolt, more particularly intended for the suspended support of mine roofs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR783231A FR1221659A (en) 1959-01-05 1959-01-05 Expansion anchor bolt, more particularly intended for the suspended support of mine roofs

Publications (1)

Publication Number Publication Date
FR1221659A true FR1221659A (en) 1960-06-03

Family

ID=8709862

Family Applications (1)

Application Number Title Priority Date Filing Date
FR783231A Expired FR1221659A (en) 1959-01-05 1959-01-05 Expansion anchor bolt, more particularly intended for the suspended support of mine roofs

Country Status (1)

Country Link
FR (1) FR1221659A (en)

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