ZA746078B - Mine roof support - Google Patents

Mine roof support

Info

Publication number
ZA746078B
ZA746078B ZA00746078A ZA746078A ZA746078B ZA 746078 B ZA746078 B ZA 746078B ZA 00746078 A ZA00746078 A ZA 00746078A ZA 746078 A ZA746078 A ZA 746078A ZA 746078 B ZA746078 B ZA 746078B
Authority
ZA
South Africa
Prior art keywords
roof support
mine roof
mine
support
roof
Prior art date
Application number
ZA00746078A
Inventor
J Walker
D Rutherford
J Sutton
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 ZA746078B publication Critical patent/ZA746078B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
    • 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)
  • Mechanical Engineering (AREA)
  • Framework For Endless Conveyors (AREA)
ZA00746078A 1973-10-18 1974-09-25 Mine roof support ZA746078B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB48620/73A GB1487553A (en) 1973-10-18 1973-10-18 Mine roof support

Publications (1)

Publication Number Publication Date
ZA746078B true ZA746078B (en) 1975-11-26

Family

ID=10449289

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00746078A ZA746078B (en) 1973-10-18 1974-09-25 Mine roof support

Country Status (3)

Country Link
BE (1) BE821250A (en)
GB (1) GB1487553A (en)
ZA (1) ZA746078B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU194596B (en) * 1985-08-22 1988-02-29 Oroszlanyi Szenbanyak Supporting unit at underground widework for mechanized supporting equipment
CN102852541B (en) * 2012-09-21 2015-05-06 卡特彼勒（郑州）有限公司 Bottom lifting device for bracket

Also Published As

Publication number Publication date
GB1487553A (en) 1977-10-05
BE821250A (en) 1975-02-17

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