FR1536278A - Improvements to support devices in mines or the like - Google Patents

Improvements to support devices in mines or the like

Info

Publication number
FR1536278A
FR1536278A FR48738A FR69048738A FR1536278A FR 1536278 A FR1536278 A FR 1536278A FR 48738 A FR48738 A FR 48738A FR 69048738 A FR69048738 A FR 69048738A FR 1536278 A FR1536278 A FR 1536278A
Authority
FR
France
Prior art keywords
mines
support devices
devices
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
FR48738A
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.)
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 FR48738A priority Critical patent/FR1536278A/en
Priority to DE19681758442D priority patent/DE1758442B1/en
Application granted granted Critical
Publication of FR1536278A publication Critical patent/FR1536278A/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
    • E21D17/0206—Hydraulically operated extension devices
    • 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
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
    • 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
    • E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting 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)
  • Hinges (AREA)
FR48738A 1967-06-01 1967-06-01 Improvements to support devices in mines or the like Expired FR1536278A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR48738A FR1536278A (en) 1967-06-01 1967-06-01 Improvements to support devices in mines or the like
DE19681758442D DE1758442B1 (en) 1967-06-01 1968-06-01 Device for supporting the face or the working face in stretches or struts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR48738A FR1536278A (en) 1967-06-01 1967-06-01 Improvements to support devices in mines or the like

Publications (1)

Publication Number Publication Date
FR1536278A true FR1536278A (en) 1968-08-16

Family

ID=9694735

Family Applications (1)

Application Number Title Priority Date Filing Date
FR48738A Expired FR1536278A (en) 1967-06-01 1967-06-01 Improvements to support devices in mines or the like

Country Status (2)

Country Link
DE (1) DE1758442B1 (en)
FR (1) FR1536278A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2819172C2 (en) * 1978-05-02 1985-01-24 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Pre-pledge device for hydraulic support

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1112483B (en) * 1960-07-09 1961-08-10 Wilhelm Reppel Detachable connection for buttress caps
GB1037734A (en) * 1961-12-19 1966-08-03 Coal Industry Patents Ltd Improvements in mine roof bars
DE1197416B (en) * 1963-10-08 1965-07-29 Rheinstahl Gmbh Wanheim Vorpfaendvorrichtung for the mining underground operation
DE1907015U (en) * 1964-02-28 1964-12-23 Hemscheidt Maschf Hermann EXTENSION CLAMP.

Also Published As

Publication number Publication date
DE1758442B1 (en) 1971-12-02

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