GB1375894A - - Google Patents

Info

Publication number
GB1375894A
GB1375894A GB2561672A GB2561672A GB1375894A GB 1375894 A GB1375894 A GB 1375894A GB 2561672 A GB2561672 A GB 2561672A GB 2561672 A GB2561672 A GB 2561672A GB 1375894 A GB1375894 A GB 1375894A
Authority
GB
United Kingdom
Prior art keywords
shield
shields
support
coving
sills
Prior art date
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
GB2561672A
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
Publication of GB1375894A publication Critical patent/GB1375894A/en
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
    • E21D23/0445—Extensions of the base member supporting the conveyor
    • 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)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

1375894 Advancing mine roof supports KLOCKNER-WERKE AG 1 June 1972 [5 June 1971] 25616/72 Heading E1P In an advancing mine roof support system with support shields arranged side by side and wherein each support shield comprises a roof shield 1, a coving shield 2, a packing shield 5 and a floor sill 8, the sill is provided with front and rear tapered ends, an advanceable abutment 11 for the system is provided with openings to receive the front ends of the sills and lateral guides 20 for controlling the relative advance of the sills whilst the packing and coving shields are each provided with laterally movable side shields 30, 31 and fixed side shields 34, 35.
GB2561672A 1971-06-05 1972-06-01 Expired GB1375894A (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 (1)

Publication Number Publication Date
GB1375894A true GB1375894A (en) 1974-11-27

Family

ID=5809963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2561672A Expired GB1375894A (en) 1971-06-05 1972-06-01

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
GB2185515A (en) * 1986-01-22 1987-07-22 Voest Alpine Ag Tracked mine roof 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
DE19953526B4 (en) * 1999-11-05 2008-05-29 Dbt Gmbh Expansion stand for large seam sizes with a controlled gap seal
US8590982B2 (en) * 2009-07-10 2013-11-26 Joy Mm Delaware, Inc. 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
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
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
GB2185515A (en) * 1986-01-22 1987-07-22 Voest Alpine Ag Tracked mine roof support

Also Published As

Publication number Publication date
FR2140421B1 (en) 1980-04-18
US3739586A (en) 1973-06-19
DE2128023A1 (en) 1972-12-14
FR2140421A1 (en) 1973-01-19
DE2128023B2 (en) 1974-04-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee