FR1084556A - Support de toit dans une mine souterraine - Google Patents

Support de toit dans une mine souterraine

Info

Publication number
FR1084556A
FR1084556A FR1084556DA FR1084556A FR 1084556 A FR1084556 A FR 1084556A FR 1084556D A FR1084556D A FR 1084556DA FR 1084556 A FR1084556 A FR 1084556A
Authority
FR
France
Prior art keywords
roof support
underground mine
mine
underground
roof
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)
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents Ltd
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 by Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Application granted granted Critical
Publication of FR1084556A publication Critical patent/FR1084556A/fr
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00Caps for supporting mine roofs
    • E21D17/02Cantilever extension or similar protecting devices
    • E21D17/08Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086Cap joints for obtaining a coal-face free of pit-props or articulated type

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)
  • Joining Of Building Structures In Genera (AREA)
FR1084556D 1952-10-02 1953-10-02 Support de toit dans une mine souterraine Expired FR1084556A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2471952A GB744361A (en) 1952-10-02 1952-10-02 Improvements in mine roof supports

Publications (1)

Publication Number Publication Date
FR1084556A true FR1084556A (fr) 1955-01-20

Family

ID=10216165

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1084556D Expired FR1084556A (fr) 1952-10-02 1953-10-02 Support de toit dans une mine souterraine

Country Status (3)

Country Link
BE (1) BE523225A (enrdf_load_stackoverflow)
FR (1) FR1084556A (enrdf_load_stackoverflow)
GB (1) GB744361A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
GB744361A (en) 1956-02-08
BE523225A (enrdf_load_stackoverflow)

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