FR2140421B1 - - Google Patents

Info

Publication number
FR2140421B1
FR2140421B1 FR7219863A FR7219863A FR2140421B1 FR 2140421 B1 FR2140421 B1 FR 2140421B1 FR 7219863 A FR7219863 A FR 7219863A FR 7219863 A FR7219863 A FR 7219863A FR 2140421 B1 FR2140421 B1 FR 2140421B1
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
FR7219863A
Other languages
French (fr)
Other versions
FR2140421A1 (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.)
Kloeckner Werke AG
Original Assignee
Kloeckner Werke AG
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 Kloeckner Werke AG filed Critical Kloeckner Werke AG
Publication of FR2140421A1 publication Critical patent/FR2140421A1/fr
Application granted granted Critical
Publication of FR2140421B1 publication Critical patent/FR2140421B1/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D23/0445—Extensions of the base member supporting the conveyor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
FR7219863A 1971-06-05 1972-06-02 Expired FR2140421B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2128023A DE2128023B2 (en) 1971-06-05 1971-06-05 Migrating longwall construction with side-by-side support shields

Publications (2)

Publication Number Publication Date
FR2140421A1 FR2140421A1 (en) 1973-01-19
FR2140421B1 true FR2140421B1 (en) 1980-04-18

Family

ID=5809963

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7219863A Expired FR2140421B1 (en) 1971-06-05 1972-06-02

Country Status (4)

Country Link
US (1) US3739586A (en)
DE (1) DE2128023B2 (en)
FR (1) FR2140421B1 (en)
GB (1) GB1375894A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106703855A (en) * 2016-12-22 2017-05-24 淮南矿业(集团)有限责任公司 Foldable and extensible advanced support

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2257828C2 (en) * 1972-11-25 1974-01-17 Bochumer Eisenhuette Heintzmann & Co, 4630 Bochum Device for the shield-like expansion of underground mining operations
DE2319909C2 (en) * 1973-04-19 1982-07-01 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Shield support frame with support and delay device that can be opened to the side
GB1504883A (en) * 1974-06-04 1978-03-22 Gullick Dobson Ltd Mine roof supports
GB1486906A (en) * 1974-09-07 1977-09-28 Peake C Mining apparatus
GB1516637A (en) * 1974-11-23 1978-07-05 Gullick Dobson Ltd Mine roof supports
DE2516394A1 (en) * 1975-04-15 1976-10-28 Bochumer Eisen Heintzmann SHIELD STRUCTURE
DE2525034C2 (en) * 1975-06-05 1981-01-08 Becorit Grubenausbau Gmbh, 4350 Recklinghausen Cap for longwall construction elements
DE2601001A1 (en) * 1976-01-13 1977-07-14 Johannes Winkler Mine roof support for inclined seams - has pivoting guide attached to similar guide equipment of adjoining support unit
ZA762055B (en) * 1976-04-08 1977-05-25 Dowty Mining Equipment Ltd Mine roorf support
DE2853050C2 (en) * 1978-12-08 1985-10-03 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Lateral sealing device for a support frame in underground mining
DE3140924C2 (en) * 1981-10-15 1985-07-18 Bochumer Eisenhütte Heintzmann GmbH & Co KG, 4630 Bochum Longwall frame
AT388971B (en) * 1986-01-22 1989-09-25 Voest Alpine Ag TRACK BODY ROLLABLE ON TRACK
DE19953526B4 (en) * 1999-11-05 2008-05-29 Dbt Gmbh Expansion stand for large seam sizes with a controlled gap seal
AU2010271330B2 (en) * 2009-07-10 2014-09-11 Joy Global Underground Mining Llc Longwall mining roof supports
CN102182485A (en) * 2011-03-17 2011-09-14 兖州煤业股份有限公司 Vehicle-mounted advance support device of cantilever type excavator
CN105221174A (en) * 2015-10-08 2016-01-06 山西晋城无烟煤矿业集团有限责任公司 Cross inbreak section supporting method
CN106761872B (en) * 2016-12-22 2019-05-31 淮南矿业(集团)有限责任公司 A kind of liftable, folding, stretching, extension machine-carried forepoling device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA832741A (en) * 1970-01-27 Vasilievich Martynov Boris Mechanized hydraulic timbering
US2910282A (en) * 1957-07-15 1959-10-27 Dowty Mining Equipment Ltd Mine roof support devices
DE1236451B (en) * 1963-12-21 1967-03-16 Karl Maria Groetschel Dipl Ing Guide element that can be used between two adjacent expansion units
US3570255A (en) * 1968-06-10 1971-03-16 Mastabar Mining Equipment Co L Mine roof support
DE1948280A1 (en) * 1969-09-24 1971-04-01 Krampe & Co Delay for the moving longwall mining

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106703855A (en) * 2016-12-22 2017-05-24 淮南矿业(集团)有限责任公司 Foldable and extensible advanced support

Also Published As

Publication number Publication date
DE2128023A1 (en) 1972-12-14
US3739586A (en) 1973-06-19
FR2140421A1 (en) 1973-01-19
GB1375894A (en) 1974-11-27
DE2128023B2 (en) 1974-04-18

Similar Documents

Publication Publication Date Title
AU2658571A (en)
AU2691671A (en)
AU3005371A (en)
AU2564071A (en)
AU2684071A (en)
AU2742671A (en)
AU2894671A (en)
AU2941471A (en)
AU2952271A (en)
AU2724971A (en)
AU2837671A (en)
AU2486471A (en)
AU2503871A (en)
AU2577671A (en)
AU3038671A (en)
AU3025871A (en)
AU2588771A (en)
AU2963771A (en)
AU2654071A (en)
AU2669471A (en)
AU2940971A (en)
AU2938071A (en)
AU2930871A (en)
AU2927871A (en)
AU2907471A (en)

Legal Events

Date Code Title Description
ST Notification of lapse