ZA806339B - Coal face support - Google Patents

Coal face support

Info

Publication number
ZA806339B
ZA806339B ZA00806339A ZA806339A ZA806339B ZA 806339 B ZA806339 B ZA 806339B ZA 00806339 A ZA00806339 A ZA 00806339A ZA 806339 A ZA806339 A ZA 806339A ZA 806339 B ZA806339 B ZA 806339B
Authority
ZA
South Africa
Prior art keywords
face support
coal face
coal
support
face
Prior art date
Application number
ZA00806339A
Other languages
English (en)
Inventor
R Murfitt
Original Assignee
Dobson Park Ind
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 Dobson Park Ind filed Critical Dobson Park Ind
Publication of ZA806339B publication Critical patent/ZA806339B/xx

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
    • 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
    • E21D23/0043—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 two or more rows 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
    • E21D23/08—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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
ZA00806339A 1979-11-09 1980-10-15 Coal face support ZA806339B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7938879A GB2062735B (en) 1979-11-09 1979-11-09 Coal face support

Publications (1)

Publication Number Publication Date
ZA806339B true ZA806339B (en) 1981-10-28

Family

ID=10509090

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00806339A ZA806339B (en) 1979-11-09 1980-10-15 Coal face support

Country Status (6)

Country Link
US (1) US4560306A (ref)
AU (1) AU539027B2 (ref)
DE (1) DE3042339A1 (ref)
GB (1) GB2062735B (ref)
IN (1) IN154919B (ref)
ZA (1) ZA806339B (ref)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3940818A1 (de) * 1989-12-09 1991-06-13 Gewerk Eisenhuette Westfalia Ausbaugestell mit einer vorrichtung zum abziehen des aus der oberbank nachbrechenden gewinnungsgutes
US6722177B1 (en) * 2002-02-27 2004-04-20 Natare Corporation Slip-resistant aquatic component and method for making the same
CN101333931B (zh) * 2008-07-31 2010-06-02 中国矿业大学 多层超静定液压支架
CN101333928B (zh) * 2008-07-31 2010-06-09 中国矿业大学 多层双叉型超静定液压支架
CN101333929B (zh) * 2008-07-31 2010-06-09 中国矿业大学 双层双叉型超静定液压支架
CN101333930B (zh) * 2008-07-31 2010-06-23 中国矿业大学 双叉型超静定液压支架
CN103821548B (zh) * 2014-01-22 2016-01-20 三一重型装备有限公司 一种抬底机构及液压支架
CN113700514B (zh) * 2021-09-26 2023-11-21 烟建集团有限公司 一种隧道支撑结构及其使用方法
CN114046167A (zh) * 2021-11-10 2022-02-15 晋能控股装备制造集团金鼎山西煤机有限责任公司 基于无梁端距高强护帮的液压支架的优化设计方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051783A (ref) * 1900-01-01
US2062657A (en) * 1933-08-11 1936-12-01 Sullivan Machinery Co Coal mining machine
GB1091602A (en) * 1964-03-10 1967-11-22 Dowty Mining Equipment Ltd Roof support suitable for use in mines
DE1288042B (ref) * 1965-03-04
GB1287096A (en) * 1968-10-17 1972-08-31 Karl Maria Groetschel Improvements relating to advancing roof supports for mine workings
US3564857A (en) * 1969-01-23 1971-02-23 Hans Joachim Von Hippel Apparatus for protecting underground excavations against collapse
GB1404594A (en) * 1972-04-05 1975-09-03 Gullick Dobson Ltd Mine roof supports
GB1429799A (en) * 1973-01-26 1976-03-24 Gullick Dobson Ltd Mine roof supports
GB1416211A (en) * 1973-02-12 1975-12-03 Taiheiyo Coal Mining Co Ltd Self-advancing roof support incorporating a wall protector
US3830324A (en) * 1973-08-20 1974-08-20 Hydranautics Transporter for heavy loads
US3921739A (en) * 1974-09-30 1975-11-25 Farmer Foundation Company Walking platform for drilling rigs and other heavy machinery
AU527664B2 (en) * 1978-04-20 1983-03-17 Huwood Ltd. Mine roof support

Also Published As

Publication number Publication date
US4560306A (en) 1985-12-24
AU539027B2 (en) 1984-09-06
DE3042339A1 (de) 1981-05-21
AU6406980A (en) 1981-05-14
GB2062735A (en) 1981-05-28
GB2062735B (en) 1983-08-10
IN154919B (ref) 1984-12-22

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