FR2213410B1 - - Google Patents

Info

Publication number
FR2213410B1
FR2213410B1 FR7239631A FR7239631A FR2213410B1 FR 2213410 B1 FR2213410 B1 FR 2213410B1 FR 7239631 A FR7239631 A FR 7239631A FR 7239631 A FR7239631 A FR 7239631A FR 2213410 B1 FR2213410 B1 FR 2213410B1
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.)
Expired
Application number
FR7239631A
Other languages
French (fr)
Other versions
FR2213410A1 (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.)
Bennes Marrel SA
Original Assignee
Bennes Marrel SA
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 Bennes Marrel SA filed Critical Bennes Marrel SA
Priority to FR7239631A priority Critical patent/FR2213410B1/fr
Publication of FR2213410A1 publication Critical patent/FR2213410A1/fr
Application granted granted Critical
Publication of FR2213410B1 publication Critical patent/FR2213410B1/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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0418—Positioning devices and stabilizing means for the props

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR7239631A 1972-11-03 1972-11-03 Expired FR2213410B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7239631A FR2213410B1 (en) 1972-11-03 1972-11-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7239631A FR2213410B1 (en) 1972-11-03 1972-11-03

Publications (2)

Publication Number Publication Date
FR2213410A1 FR2213410A1 (en) 1974-08-02
FR2213410B1 true FR2213410B1 (en) 1975-03-14

Family

ID=9106860

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7239631A Expired FR2213410B1 (en) 1972-11-03 1972-11-03

Country Status (1)

Country Link
FR (1) FR2213410B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497872B1 (en) * 1981-01-13 1986-03-28 Alsace Mines Potasse DEVICE FOR HYDRAULIC POSITIONING OF THE STUDS OF A HYDRAULIC SUPPORT ASSEMBLY

Also Published As

Publication number Publication date
FR2213410A1 (en) 1974-08-02

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Legal Events

Date Code Title Description
ST Notification of lapse