FR1177688A - Mine support extension holder - Google Patents

Mine support extension holder

Info

Publication number
FR1177688A
FR1177688A FR1177688DA FR1177688A FR 1177688 A FR1177688 A FR 1177688A FR 1177688D A FR1177688D A FR 1177688DA FR 1177688 A FR1177688 A FR 1177688A
Authority
FR
France
Prior art keywords
support extension
mine support
extension holder
holder
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
French (fr)
Inventor
Alois Bost
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.)
Saarbergwerke AG
Original Assignee
Saarbergwerke 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 Saarbergwerke AG filed Critical Saarbergwerke AG
Application granted granted Critical
Publication of FR1177688A publication Critical patent/FR1177688A/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
    • E21D17/0213—Assembling devices for pivoting caps upwardly
    • 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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/581—Devices for setting props or chocks in which the props are pre- loaded

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)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
FR1177688D 1957-07-02 1957-07-02 Mine support extension holder Expired FR1177688A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1177688T 1957-07-02

Publications (1)

Publication Number Publication Date
FR1177688A true FR1177688A (en) 1959-04-28

Family

ID=9660358

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1177688D Expired FR1177688A (en) 1957-07-02 1957-07-02 Mine support extension holder

Country Status (1)

Country Link
FR (1) FR1177688A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108590728A (en) * 2018-04-16 2018-09-28 中国矿业大学(北京) A kind of umbrella is mining can the two-way advanced supporting support of folding and unfolding hydraulic pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108590728A (en) * 2018-04-16 2018-09-28 中国矿业大学(北京) A kind of umbrella is mining can the two-way advanced supporting support of folding and unfolding hydraulic pressure

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