FR2191020A1 - - Google Patents

Info

Publication number
FR2191020A1
FR2191020A1 FR7315001A FR7315001A FR2191020A1 FR 2191020 A1 FR2191020 A1 FR 2191020A1 FR 7315001 A FR7315001 A FR 7315001A FR 7315001 A FR7315001 A FR 7315001A FR 2191020 A1 FR2191020 A1 FR 2191020A1
Authority
FR
France
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.)
Granted
Application number
FR7315001A
Other languages
French (fr)
Other versions
FR2191020B1 (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.)
Kloeckner Werke AG
Original Assignee
Kloeckner 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 Kloeckner Werke AG filed Critical Kloeckner Werke AG
Publication of FR2191020A1 publication Critical patent/FR2191020A1/fr
Application granted granted Critical
Publication of FR2191020B1 publication Critical patent/FR2191020B1/fr
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
    • E21D23/08—Advancing mechanisms
    • E21D23/081—Advancing mechanisms forming parts of the roof supports
    • E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
    • E21D23/086—Details of fixing devices therefor

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)
  • Framework For Endless Conveyors (AREA)
FR7315001A 1972-06-29 1973-04-25 Expired FR2191020B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722231843 DE2231843A1 (en) 1972-06-29 1972-06-29 EXTENSION FRAME FOR UNDERGROUND EXTRAS

Publications (2)

Publication Number Publication Date
FR2191020A1 true FR2191020A1 (en) 1974-02-01
FR2191020B1 FR2191020B1 (en) 1975-12-26

Family

ID=5849167

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7315001A Expired FR2191020B1 (en) 1972-06-29 1973-04-25

Country Status (2)

Country Link
DE (1) DE2231843A1 (en)
FR (1) FR2191020B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2622886C3 (en) * 1976-05-21 1981-04-30 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Guide device for a shield support frame
DE2942943C2 (en) * 1979-10-24 1981-11-26 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Device for maintaining the specified center-to-center distance of the support elements of a step support for the dismantling of long fronts

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2191020B1 (en) 1975-12-26
DE2231843A1 (en) 1974-01-17

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Legal Events

Date Code Title Description
ST Notification of lapse