FR2311173B1 - - Google Patents

Info

Publication number
FR2311173B1
FR2311173B1 FR7614685A FR7614685A FR2311173B1 FR 2311173 B1 FR2311173 B1 FR 2311173B1 FR 7614685 A FR7614685 A FR 7614685A FR 7614685 A FR7614685 A FR 7614685A FR 2311173 B1 FR2311173 B1 FR 2311173B1
Authority
FR
France
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
FR7614685A
Other languages
French (fr)
Other versions
FR2311173A1 (fr
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.)
PK P
Original Assignee
PK P
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 PK P filed Critical PK P
Publication of FR2311173A1 publication Critical patent/FR2311173A1/fr
Application granted granted Critical
Publication of FR2311173B1 publication Critical patent/FR2311173B1/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
    • E21D23/04—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
    • 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
    • E21D23/0082—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor specially adapted for vertical or steep gradient seams
    • 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
    • E21D23/0472—Supports specially adapted for people walking or transporting material

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)
  • Framework For Endless Conveyors (AREA)
  • Earth Drilling (AREA)
FR7614685A 1975-05-16 1976-05-14 Pile intermediaire de soutenement mecanise Granted FR2311173A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU752135020A SU641115A2 (ru) 1975-05-16 1975-05-16 Секци механизированной крепи

Publications (2)

Publication Number Publication Date
FR2311173A1 FR2311173A1 (fr) 1976-12-10
FR2311173B1 true FR2311173B1 (lv) 1978-05-19

Family

ID=20619688

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7614685A Granted FR2311173A1 (fr) 1975-05-16 1976-05-14 Pile intermediaire de soutenement mecanise

Country Status (3)

Country Link
DE (1) DE2621589A1 (lv)
FR (1) FR2311173A1 (lv)
SU (1) SU641115A2 (lv)

Also Published As

Publication number Publication date
FR2311173A1 (fr) 1976-12-10
DE2621589A1 (de) 1976-11-25
SU641115A2 (ru) 1979-01-05

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Legal Events

Date Code Title Description
ST Notification of lapse