FR1600845A - - Google Patents

Info

Publication number
FR1600845A
FR1600845A FR1600845DA FR1600845A FR 1600845 A FR1600845 A FR 1600845A FR 1600845D A FR1600845D A FR 1600845DA FR 1600845 A FR1600845 A FR 1600845A
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1600845A publication Critical patent/FR1600845A/fr
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
    • E21D23/0427—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
    • E21D23/04—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
    • E21D23/066—Pivoted cantilever extensions 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
    • E21D23/08—Advancing mechanisms
    • E21D23/081—Advancing mechanisms forming parts of the roof 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)
  • Vibration Prevention Devices (AREA)
  • Jib Cranes (AREA)
FR1600845D 1968-07-08 1968-07-08 Expired FR1600845A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR69050193 1968-07-08

Publications (1)

Publication Number Publication Date
FR1600845A true FR1600845A (xx) 1970-08-03

Family

ID=9695482

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1600845D Expired FR1600845A (xx) 1968-07-08 1968-07-08

Country Status (2)

Country Link
DE (1) DE1934376B2 (xx)
FR (1) FR1600845A (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2159535C3 (de) * 1971-12-01 1979-01-04 Thyssen Industrie Ag, 4300 Essen Schildausbaugestell
DE2164365C3 (de) * 1971-12-23 1984-03-15 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Rückbare Schildausbaueinheit
GB1428256A (en) * 1972-05-18 1976-03-17 Bochumer Eisen Heintzmann Roof support with a shield for a longwall working in a mine
FR2253143B1 (xx) * 1973-11-30 1978-11-03 Alsace Mines Potasse

Also Published As

Publication number Publication date
DE1934376A1 (de) 1970-03-05
DE1934376B2 (de) 1974-08-01

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