FR1122081A - Profile usable in particular as a retaining cap in mines - Google Patents

Profile usable in particular as a retaining cap in mines

Info

Publication number
FR1122081A
FR1122081A FR1122081DA FR1122081A FR 1122081 A FR1122081 A FR 1122081A FR 1122081D A FR1122081D A FR 1122081DA FR 1122081 A FR1122081 A FR 1122081A
Authority
FR
France
Prior art keywords
mines
retaining cap
profile usable
usable
profile
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
French (fr)
Inventor
James Frame
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 FR1122081A publication Critical patent/FR1122081A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR1122081D 1954-02-10 1955-02-09 Profile usable in particular as a retaining cap in mines Expired FR1122081A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1122081X 1954-02-10

Publications (1)

Publication Number Publication Date
FR1122081A true FR1122081A (en) 1956-08-31

Family

ID=10875707

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1122081D Expired FR1122081A (en) 1954-02-10 1955-02-09 Profile usable in particular as a retaining cap in mines

Country Status (1)

Country Link
FR (1) FR1122081A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2722425A1 (en) * 1976-05-21 1977-11-24 Richier Sa ARRANGEMENT FOR CONNECTING THE PARTS OF A METALLIC SUPPORTING FRAME

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2722425A1 (en) * 1976-05-21 1977-11-24 Richier Sa ARRANGEMENT FOR CONNECTING THE PARTS OF A METALLIC SUPPORTING FRAME

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