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GB1223284A - A hydraulic roof support system for longwall faces - Google Patents

A hydraulic roof support system for longwall faces

Info

Publication number
GB1223284A
GB1223284A GB34183/68A GB3418368A GB1223284A GB 1223284 A GB1223284 A GB 1223284A GB 34183/68 A GB34183/68 A GB 34183/68A GB 3418368 A GB3418368 A GB 3418368A GB 1223284 A GB1223284 A GB 1223284A
Authority
GB
United Kingdom
Prior art keywords
jacks
roof support
support system
advancing
july
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
GB34183/68A
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 GB1223284A publication Critical patent/GB1223284A/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
    • E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

1,223,284. Advancing mine roof supports. KLOCKNER-WERKE A.G. 18 July, 1968 [19 July, 1967], No. 34183/68. Heading E1P. An advancing mine roof support comprising a control frame B connected by advancing jacks 6, 7 to an outer frame A, C is provided with two pairs of steering jacks 11, 14 and 12, 15 in order to maintain parallelism for which purpose the chamber of annular crosssection in each of the jacks 11, 12 is equal in area to the full cross-section of the piston in the associated jack 14, 15 and intercommunication is established between each pair of jacks 11, 14 as shown under the control of a valve 30.
GB34183/68A 1967-07-19 1968-07-18 A hydraulic roof support system for longwall faces Expired GB1223284A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1583108 1967-07-19

Publications (1)

Publication Number Publication Date
GB1223284A true GB1223284A (en) 1971-02-24

Family

ID=5679421

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34183/68A Expired GB1223284A (en) 1967-07-19 1968-07-18 A hydraulic roof support system for longwall faces

Country Status (3)

Country Link
US (1) US3505823A (en)
FR (1) FR1579724A (en)
GB (1) GB1223284A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104500119A (en) * 2014-12-11 2015-04-08 中煤北京煤矿机械有限责任公司 Large-dip-angle thin-coal-seam support anchor structure

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1758448A1 (en) * 1968-06-01 1971-01-28 Kloeckner Werke Ag Hydraulic longwall construction
DE2547853C2 (en) * 1975-10-25 1984-04-05 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Shield support unit
DE3024216C2 (en) * 1980-06-27 1985-08-01 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Block bracing for a moveable conveyor and / or extraction system
US5584611A (en) * 1994-11-22 1996-12-17 Long-Airdox Roof support for underground excavations
DE102005040272A1 (en) * 2005-08-24 2007-03-01 Dbt Gmbh Pillar retreating method for use during digging e.g. coal, in underground layer-like deposits, involves supporting inclination end with construction units before retreating face of extraction unit
US10774642B1 (en) * 2019-05-05 2020-09-15 Liaoning University Hydraulic support unit and hydraulic support for anti-rock burst roadway

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078514B (en) * 1954-10-01 1960-03-31 Kloeckner Bergbau Victor Icker Wandering longwall mining, preferably for mining in steep floezen
GB830342A (en) * 1955-06-20 1960-03-16 Becorit Grubenausbau Gmbh Improvements in mine gallery-supporting systems
GB874435A (en) * 1956-12-12 1961-08-10 Arnold Haarmann Advancing mine roof support structure for mine working faces
DE1251256B (en) * 1959-10-12 1967-10-05 Coal Industry (Patents) Limited, London Wandering longwall mining
GB999943A (en) * 1960-11-29 1965-07-28 Dobson Ltd W E & F Improved mine roof support means
GB966034A (en) * 1961-10-02 1964-08-06 Dowty Mining Equipment Ltd Advanceable roof support suitable for use in mines
DE1236451B (en) * 1963-12-21 1967-03-16 Karl Maria Groetschel Dipl Ing Guide element that can be used between two adjacent expansion units
GB1036663A (en) * 1964-04-03 1966-07-20 Gullick Ltd Improvements in or relating to mine roof and like supports

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104500119A (en) * 2014-12-11 2015-04-08 中煤北京煤矿机械有限责任公司 Large-dip-angle thin-coal-seam support anchor structure

Also Published As

Publication number Publication date
FR1579724A (en) 1969-08-29
US3505823A (en) 1970-04-14

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