FR2208048B3 - - Google Patents

Info

Publication number
FR2208048B3
FR2208048B3 FR7341415A FR7341415A FR2208048B3 FR 2208048 B3 FR2208048 B3 FR 2208048B3 FR 7341415 A FR7341415 A FR 7341415A FR 7341415 A FR7341415 A FR 7341415A FR 2208048 B3 FR2208048 B3 FR 2208048B3
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
FR7341415A
Other languages
French (fr)
Other versions
FR2208048A1 (en
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Publication of FR2208048A1 publication Critical patent/FR2208048A1/fr
Application granted granted Critical
Publication of FR2208048B3 publication Critical patent/FR2208048B3/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
    • E21D23/04—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

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)
FR7341415A 1972-11-25 1973-11-21 Expired FR2208048B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2257828A DE2257828C2 (en) 1972-11-25 1972-11-25 Device for the shield-like expansion of underground mining operations

Publications (2)

Publication Number Publication Date
FR2208048A1 FR2208048A1 (en) 1974-06-21
FR2208048B3 true FR2208048B3 (en) 1976-10-01

Family

ID=5862694

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7341415A Expired FR2208048B3 (en) 1972-11-25 1973-11-21

Country Status (5)

Country Link
US (1) US3891275A (en)
BE (1) BE807641A (en)
DE (1) DE2257828C2 (en)
FR (1) FR2208048B3 (en)
GB (1) GB1438994A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1486906A (en) * 1974-09-07 1977-09-28 Peake C Mining apparatus
DE2800376A1 (en) * 1978-01-05 1979-07-19 Gewerk Eisenhuette Westfalia IN-HOUSE FOR AN EXTENSION FRAME OF AN UNDERGROUND MINERAL EXTRACTION PLANT
DE2803907C3 (en) * 1978-01-30 1982-09-23 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Detachable articulated connection for underground mining and its use on a longwall frame
DE2843857C2 (en) * 1978-10-07 1986-06-19 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Shield support frame
GB2199068B (en) * 1986-12-23 1991-01-09 Gullick Dobson Ltd Mine roof supports
US6767200B2 (en) * 2001-09-28 2004-07-27 Mcneil-Ppc, Inc. Systems, methods and apparatuses for manufacturing dosage forms
AU2002951470A0 (en) * 2002-09-18 2002-10-03 Derrek William Batty A support device for a rib
AU2010271330B2 (en) 2009-07-10 2014-09-11 Joy Global Underground Mining Llc Longwall mining roof supports

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2657028A (en) * 1949-06-15 1953-10-27 Joy Mfg Co Walking jack
DE2128023B2 (en) * 1971-06-05 1974-04-18 Kloeckner-Werke Ag, 4100 Duisburg Migrating longwall construction with side-by-side support shields
DE2159535C3 (en) * 1971-12-01 1979-01-04 Thyssen Industrie Ag, 4300 Essen Shield support frame
US3811288A (en) * 1972-05-15 1974-05-21 Kloeckner Werke Ag Traveling face support with an attached extensible shield

Also Published As

Publication number Publication date
US3891275A (en) 1975-06-24
BE807641A (en) 1974-05-22
DE2257828B1 (en) 1973-06-20
FR2208048A1 (en) 1974-06-21
GB1438994A (en) 1976-06-09
DE2257828C2 (en) 1974-01-17

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Legal Events

Date Code Title Description
ST Notification of lapse