GB1555228A - Mine roof support - Google Patents

Mine roof support

Info

Publication number
GB1555228A
GB1555228A GB2338476A GB2338476A GB1555228A GB 1555228 A GB1555228 A GB 1555228A GB 2338476 A GB2338476 A GB 2338476A GB 2338476 A GB2338476 A GB 2338476A GB 1555228 A GB1555228 A GB 1555228A
Authority
GB
United Kingdom
Prior art keywords
roof support
mine roof
mine
support
roof
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
GB2338476A
Other languages
English (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
Publication of GB1555228A publication Critical patent/GB1555228A/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
    • E21D23/16—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)
GB2338476A 1975-06-06 1976-06-07 Mine roof support Expired GB1555228A (en)

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
GB1555228A true GB1555228A (en) 1979-11-07

Family

ID=9156399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2338476A Expired GB1555228A (en) 1975-06-06 1976-06-07 Mine roof support

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
FR2313549A1 (fr) 1976-12-31
DE2625622A1 (de) 1976-12-23
FR2313549B1 (enExample) 1982-10-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee