DE7505210U - - Google Patents

Info

Publication number
DE7505210U
DE7505210U DE19757505210 DE7505210U DE7505210U DE 7505210 U DE7505210 U DE 7505210U DE 19757505210 DE19757505210 DE 19757505210 DE 7505210 U DE7505210 U DE 7505210U DE 7505210 U DE7505210 U DE 7505210U
Authority
DE
Germany
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
DE19757505210
Other languages
German (de)
Other versions
DE7505210U1 (de
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19757505210 priority Critical patent/DE7505210U1/de
Priority claimed from DE19757505210 external-priority patent/DE7505210U1/de
Publication of DE7505210U publication Critical patent/DE7505210U/de
Publication of DE7505210U1 publication Critical patent/DE7505210U1/de
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
    • E21D23/0004—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
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • E21D23/063—Retractable cantilever extensions 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)
DE19757505210 1975-02-20 1975-02-20 Schildausbau mit Kappenlenkvorrichtung Expired DE7505210U1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19757505210 DE7505210U1 (de) 1975-02-20 1975-02-20 Schildausbau mit Kappenlenkvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2507263 1975-02-20
DE19757505210 DE7505210U1 (de) 1975-02-20 1975-02-20 Schildausbau mit Kappenlenkvorrichtung

Publications (2)

Publication Number Publication Date
DE7505210U true DE7505210U (enrdf_load_stackoverflow) 1986-07-03
DE7505210U1 DE7505210U1 (de) 1986-08-14

Family

ID=

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