FR2265970A1 - Hydraulic prop for mines - has vertically pivoting arm for supporting roof plate universally mounted on floor base - Google Patents

Hydraulic prop for mines - has vertically pivoting arm for supporting roof plate universally mounted on floor base

Info

Publication number
FR2265970A1
FR2265970A1 FR7411848A FR7411848A FR2265970A1 FR 2265970 A1 FR2265970 A1 FR 2265970A1 FR 7411848 A FR7411848 A FR 7411848A FR 7411848 A FR7411848 A FR 7411848A FR 2265970 A1 FR2265970 A1 FR 2265970A1
Authority
FR
France
Prior art keywords
arm
mines
base
hydraulic prop
roof plate
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.)
Granted
Application number
FR7411848A
Other languages
French (fr)
Other versions
FR2265970B3 (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 FR7411848A priority Critical patent/FR2265970A1/en
Priority to DE19752513361 priority patent/DE2513361A1/en
Publication of FR2265970A1 publication Critical patent/FR2265970A1/en
Application granted granted Critical
Publication of FR2265970B3 publication Critical patent/FR2265970B3/fr
Granted 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
    • E21D23/0004—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
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

Hydraulic prop for use in mines consists of a base resting on the floor and pivotally supporting one end of an arm. The arm position is adjustable in vertical plane by hydraulic cylinders and at the free end of the arm is pivotably mounted a head plate for supporting the roof. The head frame and the arm are comparatively wide and the arm which is vertically adjustable by two hydraulic cylinders is so attached to the base that it can pivot in vertical plane and move across its pivoting axis. The arm position across its pivoting axis is adjusted by either one double acting hydraulic cylinder positioned between the base and one of the arm cylinders or by two opposite single acting hydraulic cylinders positioned between the base and one of the arm cylinders.
FR7411848A 1974-03-27 1974-03-27 Hydraulic prop for mines - has vertically pivoting arm for supporting roof plate universally mounted on floor base Granted FR2265970A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7411848A FR2265970A1 (en) 1974-03-27 1974-03-27 Hydraulic prop for mines - has vertically pivoting arm for supporting roof plate universally mounted on floor base
DE19752513361 DE2513361A1 (en) 1974-03-27 1975-03-26 HYDRAULIC STAMP

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7411848A FR2265970A1 (en) 1974-03-27 1974-03-27 Hydraulic prop for mines - has vertically pivoting arm for supporting roof plate universally mounted on floor base

Publications (2)

Publication Number Publication Date
FR2265970A1 true FR2265970A1 (en) 1975-10-24
FR2265970B3 FR2265970B3 (en) 1976-04-09

Family

ID=9137248

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7411848A Granted FR2265970A1 (en) 1974-03-27 1974-03-27 Hydraulic prop for mines - has vertically pivoting arm for supporting roof plate universally mounted on floor base

Country Status (2)

Country Link
DE (1) DE2513361A1 (en)
FR (1) FR2265970A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2622887C3 (en) * 1976-05-21 1981-04-30 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Pivoting a stamp in the horizontal runner of a shield support frame
DE3630580A1 (en) * 1986-09-09 1988-03-10 Gewerk Eisenhuette Westfalia STORAGE OF THE CAP TAMPER CYLINDER AT A SHIELD REMOVAL RACK

Also Published As

Publication number Publication date
FR2265970B3 (en) 1976-04-09
DE2513361A1 (en) 1975-10-09

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