ZA842054B - Roof support suitable for use in mines - Google Patents

Roof support suitable for use in mines

Info

Publication number
ZA842054B
ZA842054B ZA842054A ZA842054A ZA842054B ZA 842054 B ZA842054 B ZA 842054B ZA 842054 A ZA842054 A ZA 842054A ZA 842054 A ZA842054 A ZA 842054A ZA 842054 B ZA842054 B ZA 842054B
Authority
ZA
South Africa
Prior art keywords
mines
roof support
support suitable
roof
support
Prior art date
Application number
ZA842054A
Other languages
English (en)
Inventor
John Henry Waters
Original Assignee
Dowty Mining Equipment Ltd
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 Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Publication of ZA842054B publication Critical patent/ZA842054B/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
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • E21D23/066—Pivoted cantilever extensions therefor

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)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
ZA842054A 1983-04-16 1984-03-20 Roof support suitable for use in mines ZA842054B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08310348A GB2138062B (en) 1983-04-16 1983-04-16 Roof support suitable for use in mines

Publications (1)

Publication Number Publication Date
ZA842054B true ZA842054B (en) 1984-10-31

Family

ID=10541205

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA842054A ZA842054B (en) 1983-04-16 1984-03-20 Roof support suitable for use in mines

Country Status (6)

Country Link
US (1) US4512686A (xx)
AU (1) AU2613784A (xx)
BE (1) BE899413A (xx)
DE (1) DE3413502A1 (xx)
GB (1) GB2138062B (xx)
ZA (1) ZA842054B (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143271B (en) * 1983-07-12 1986-08-06 Dowty Mining Equipment Ltd Mine roof support with tilting cantilever to canopy
DD299446A5 (de) * 1989-05-11 1992-04-16 ��������@��@����������@��@��@����������@���������k�� Mobile abbau kammerabstuetzvorrichtung
CN105804778A (zh) * 2016-04-12 2016-07-27 安徽省宿州市龙华机械制造有限公司 液压支架用上下隅角支护结构

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1037734A (en) * 1961-12-19 1966-08-03 Coal Industry Patents Ltd Improvements in mine roof bars
DE1243612B (de) * 1966-06-25 1967-07-06 Hoesch Bergbautechnik G M B H Hydraulische Vorpfaendkappe
GB1234661A (xx) * 1968-01-17 1971-06-09
GB1236833A (en) * 1969-01-24 1971-06-23 Gewerk Eisenhuette Westfalia Improvements in support assemblies for mineral mines
GB1562845A (en) * 1977-09-03 1980-03-19 Gullick Dobson Ltd Mine-roof support
SU840392A1 (ru) * 1979-09-12 1981-06-23 Шахтоуправление Им. Хх1 Съезда Кпсс,Добропольского Производственногообъединения Перекрытие секции механизированнойКРЕпи
DE3107209A1 (de) * 1981-02-26 1982-09-09 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Kappenanstellvorrichtung

Also Published As

Publication number Publication date
AU2613784A (en) 1984-10-18
DE3413502A1 (de) 1984-10-18
GB2138062B (en) 1986-10-01
GB8310348D0 (en) 1983-05-18
BE899413A (fr) 1984-07-31
GB2138062A (en) 1984-10-17
US4512686A (en) 1985-04-23

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