DE2513612A1 - Hydraulikstempel - Google Patents

Hydraulikstempel

Info

Publication number
DE2513612A1
DE2513612A1 DE19752513612 DE2513612A DE2513612A1 DE 2513612 A1 DE2513612 A1 DE 2513612A1 DE 19752513612 DE19752513612 DE 19752513612 DE 2513612 A DE2513612 A DE 2513612A DE 2513612 A1 DE2513612 A1 DE 2513612A1
Authority
DE
Germany
Prior art keywords
lever arm
foot
rear end
parts
foot part
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Withdrawn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
DE19752513612
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 DE2513612A1 publication Critical patent/DE2513612A1/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Withdrawn legal-status Critical Current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
    • E21D23/0004—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
    • E21D23/0427—Shield operating devices; Hinges therefor

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)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Forklifts And Lifting Vehicles (AREA)
DE19752513612 1974-03-28 1975-03-27 Hydraulikstempel Withdrawn DE2513612A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7411882A FR2265971A1 (en) 1974-03-28 1974-03-28 Hydraulic prop for mine working - has arm between flexible base and head plate vertically adjusted by hydraulic cylinders

Publications (1)

Publication Number Publication Date
DE2513612A1 true DE2513612A1 (de) 1975-10-02

Family

ID=9137269

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752513612 Withdrawn DE2513612A1 (de) 1974-03-28 1975-03-27 Hydraulikstempel

Country Status (2)

Country Link
DE (1) DE2513612A1 (https=)
FR (1) FR2265971A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1572534A (en) * 1976-12-07 1980-07-30 Charbonnages De France Roof supports
CN109026094A (zh) * 2018-07-20 2018-12-18 河北充填采矿技术有限公司 一种巷道顶板倾角自适应的辅助支护装置及支护方法

Also Published As

Publication number Publication date
FR2265971A1 (en) 1975-10-24
FR2265971B3 (https=) 1976-04-09

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination