DE2625622A1 - Hydraulischer auslegerstempel fuer den strebbau in gruben - Google Patents

Hydraulischer auslegerstempel fuer den strebbau in gruben

Info

Publication number
DE2625622A1
DE2625622A1 DE19762625622 DE2625622A DE2625622A1 DE 2625622 A1 DE2625622 A1 DE 2625622A1 DE 19762625622 DE19762625622 DE 19762625622 DE 2625622 A DE2625622 A DE 2625622A DE 2625622 A1 DE2625622 A1 DE 2625622A1
Authority
DE
Germany
Prior art keywords
power cylinder
boom
cap
valve
power
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.)
Withdrawn
Application number
DE19762625622
Other languages
German (de)
English (en)
Inventor
Raymond Bore
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
Publication of DE2625622A1 publication Critical patent/DE2625622A1/de
Withdrawn legal-status Critical Current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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • 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
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • E21D23/0039—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by a strut or by a row of struts parallel to the working face

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)
  • Fluid-Pressure Circuits (AREA)
DE19762625622 1975-06-06 1976-06-08 Hydraulischer auslegerstempel fuer den strebbau in gruben Withdrawn DE2625622A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7518330A FR2313549A1 (fr) 1975-06-06 1975-06-06 Pile a fleche avec chapeau, prevue pour assurer le soutenement dans les mines

Publications (1)

Publication Number Publication Date
DE2625622A1 true DE2625622A1 (de) 1976-12-23

Family

ID=9156399

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762625622 Withdrawn DE2625622A1 (de) 1975-06-06 1976-06-08 Hydraulischer auslegerstempel fuer den strebbau in gruben

Country Status (3)

Country Link
DE (1) DE2625622A1 (enExample)
FR (1) FR2313549A1 (enExample)
GB (1) GB1555228A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3100093A1 (de) * 1981-01-03 1982-08-05 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Vorrichtung zur begrenzung des ausbauwiderstandes eines hydraulischen ausbauschildes
DE3042749C2 (de) * 1980-11-13 1983-06-01 Bergwerksverband Gmbh, 4300 Essen Verfahren zur Steuerung von Schildausbau

Also Published As

Publication number Publication date
GB1555228A (en) 1979-11-07
FR2313549A1 (fr) 1976-12-31
FR2313549B1 (enExample) 1982-10-29

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination