FR1487717A - Support for underground mining - Google Patents

Support for underground mining

Info

Publication number
FR1487717A
FR1487717A FR70774A FR70774A FR1487717A FR 1487717 A FR1487717 A FR 1487717A FR 70774 A FR70774 A FR 70774A FR 70774 A FR70774 A FR 70774A FR 1487717 A FR1487717 A FR 1487717A
Authority
FR
France
Prior art keywords
support
underground mining
mining
underground
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
FR70774A
Other languages
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.)
Maschinenfabrik und Eisengiesserei A Beien
Original Assignee
Maschinenfabrik und Eisengiesserei A Beien
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 Maschinenfabrik und Eisengiesserei A Beien filed Critical Maschinenfabrik und Eisengiesserei A Beien
Priority to FR70774A priority Critical patent/FR1487717A/en
Application granted granted Critical
Publication of FR1487717A publication Critical patent/FR1487717A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0065—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices driven, or automatically, e.g. electrically-hydraulically controlled

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)
FR70774A 1966-07-25 1966-07-25 Support for underground mining Expired FR1487717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR70774A FR1487717A (en) 1966-07-25 1966-07-25 Support for underground mining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR70774A FR1487717A (en) 1966-07-25 1966-07-25 Support for underground mining

Publications (1)

Publication Number Publication Date
FR1487717A true FR1487717A (en) 1967-07-07

Family

ID=8614067

Family Applications (1)

Application Number Title Priority Date Filing Date
FR70774A Expired FR1487717A (en) 1966-07-25 1966-07-25 Support for underground mining

Country Status (1)

Country Link
FR (1) FR1487717A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847438A (en) * 1972-05-02 1974-11-12 Gewerk Eisenhuette Westfalia Mineral winning machine having continuous height adjustment to accommodate varying seam thickness

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847438A (en) * 1972-05-02 1974-11-12 Gewerk Eisenhuette Westfalia Mineral winning machine having continuous height adjustment to accommodate varying seam thickness

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