FR1192849A - Allonge de soutènement - Google Patents

Allonge de soutènement

Info

Publication number
FR1192849A
FR1192849A FR1192849DA FR1192849A FR 1192849 A FR1192849 A FR 1192849A FR 1192849D A FR1192849D A FR 1192849DA FR 1192849 A FR1192849 A FR 1192849A
Authority
FR
France
Prior art keywords
support extension
extension
support
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)
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.)
Hoesch Werke AG
Original Assignee
Hoesch Werke AG
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 Hoesch Werke AG filed Critical Hoesch Werke AG
Application granted granted Critical
Publication of FR1192849A publication Critical patent/FR1192849A/fr
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
    • E21D17/0206—Hydraulically operated extension devices

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)
FR1192849D 1957-04-20 1958-03-12 Allonge de soutènement Expired FR1192849A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1192849X 1957-04-20

Publications (1)

Publication Number Publication Date
FR1192849A true FR1192849A (fr) 1959-10-28

Family

ID=7731428

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1192849D Expired FR1192849A (fr) 1957-04-20 1958-03-12 Allonge de soutènement

Country Status (1)

Country Link
FR (1) FR1192849A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240021A (en) * 1961-07-22 1966-03-15 Mines Domanlales De Potasse D Mine roof supporting structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240021A (en) * 1961-07-22 1966-03-15 Mines Domanlales De Potasse D Mine roof supporting structure

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