FR2320420B1 - - Google Patents

Info

Publication number
FR2320420B1
FR2320420B1 FR7623270A FR7623270A FR2320420B1 FR 2320420 B1 FR2320420 B1 FR 2320420B1 FR 7623270 A FR7623270 A FR 7623270A FR 7623270 A FR7623270 A FR 7623270A FR 2320420 B1 FR2320420 B1 FR 2320420B1
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
FR7623270A
Other languages
French (fr)
Other versions
FR2320420A1 (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.)
GP KONSTRUK
Original Assignee
GP KONSTRUK
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 GP KONSTRUK filed Critical GP KONSTRUK
Publication of FR2320420A1 publication Critical patent/FR2320420A1/fr
Application granted granted Critical
Publication of FR2320420B1 publication Critical patent/FR2320420B1/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
    • 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
    • E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports

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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)
FR7623270A 1975-08-05 1976-07-29 Soutenement mecanise Granted FR2320420A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2154552 1975-08-05

Publications (2)

Publication Number Publication Date
FR2320420A1 FR2320420A1 (fr) 1977-03-04
FR2320420B1 true FR2320420B1 (mo) 1979-05-04

Family

ID=20626047

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7623270A Granted FR2320420A1 (fr) 1975-08-05 1976-07-29 Soutenement mecanise

Country Status (2)

Country Link
DE (1) DE2630815A1 (mo)
FR (1) FR2320420A1 (mo)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143882B (en) * 1983-07-23 1986-11-05 Dowty Mining Equipment Ltd Shield supports suitable for use in mines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1298692A (fr) * 1961-08-25 1962-07-13 Gullick Ltd Perfectionnements aux soutènements de toit, dans les mines et installations similaires

Also Published As

Publication number Publication date
DE2630815A1 (de) 1977-02-10
FR2320420A1 (fr) 1977-03-04

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Legal Events

Date Code Title Description
ST Notification of lapse