ZA78856B - Improvements in or relating to mine roof supports - Google Patents

Improvements in or relating to mine roof supports

Info

Publication number
ZA78856B
ZA78856B ZA00780856A ZA78856A ZA78856B ZA 78856 B ZA78856 B ZA 78856B ZA 00780856 A ZA00780856 A ZA 00780856A ZA 78856 A ZA78856 A ZA 78856A ZA 78856 B ZA78856 B ZA 78856B
Authority
ZA
South Africa
Prior art keywords
relating
mine roof
roof supports
supports
mine
Prior art date
Application number
ZA00780856A
Inventor
B Fletcher
Original Assignee
Huwood 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 Huwood Ltd filed Critical Huwood Ltd
Publication of ZA78856B publication Critical patent/ZA78856B/en

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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
ZA00780856A 1977-02-15 1978-02-14 Improvements in or relating to mine roof supports ZA78856B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6203/77A GB1599031A (en) 1977-02-15 1977-02-15 Mine roof supports

Publications (1)

Publication Number Publication Date
ZA78856B true ZA78856B (en) 1979-06-27

Family

ID=9810299

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00780856A ZA78856B (en) 1977-02-15 1978-02-14 Improvements in or relating to mine roof supports

Country Status (3)

Country Link
AU (1) AU3331878A (en)
GB (1) GB1599031A (en)
ZA (1) ZA78856B (en)

Also Published As

Publication number Publication date
GB1599031A (en) 1981-09-30
AU3331878A (en) 1979-08-23

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