GB2089411B - Improvements in or relating to mine roof supports - Google Patents

Improvements in or relating to mine roof supports

Info

Publication number
GB2089411B
GB2089411B GB8131969A GB8131969A GB2089411B GB 2089411 B GB2089411 B GB 2089411B GB 8131969 A GB8131969 A GB 8131969A GB 8131969 A GB8131969 A GB 8131969A GB 2089411 B GB2089411 B GB 2089411B
Authority
GB
United Kingdom
Prior art keywords
relating
mine roof
roof supports
supports
mine
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
GB8131969A
Other versions
GB2089411A (en
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.)
Joy Global Industries Ltd
Original Assignee
Dobson Park Industries 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 Dobson Park Industries Ltd filed Critical Dobson Park Industries Ltd
Priority to GB8131969A priority Critical patent/GB2089411B/en
Publication of GB2089411A publication Critical patent/GB2089411A/en
Application granted granted Critical
Publication of GB2089411B publication Critical patent/GB2089411B/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
    • E21D23/0004—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
    • 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

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)
  • Excavating Of Shafts Or Tunnels (AREA)
GB8131969A 1980-12-12 1981-10-23 Improvements in or relating to mine roof supports Expired GB2089411B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8131969A GB2089411B (en) 1980-12-12 1981-10-23 Improvements in or relating to mine roof supports

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8039971 1980-12-12
GB8131969A GB2089411B (en) 1980-12-12 1981-10-23 Improvements in or relating to mine roof supports

Publications (2)

Publication Number Publication Date
GB2089411A GB2089411A (en) 1982-06-23
GB2089411B true GB2089411B (en) 1984-09-05

Family

ID=26277834

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8131969A Expired GB2089411B (en) 1980-12-12 1981-10-23 Improvements in or relating to mine roof supports

Country Status (1)

Country Link
GB (1) GB2089411B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3237969A1 (en) * 1981-10-23 1983-05-05 Dobson Park Industries PLC, Colwick, Nottingham HIKING ROUTE OR STABLE REMOVAL
GB2262494A (en) * 1991-12-17 1993-06-23 Meco Face End Systems Limited Mining apparatus.
US7331735B2 (en) * 2004-11-03 2008-02-19 Mckenzie Jefferson D Apparatus, system, and method for supporting a gate entry for underground full extraction mining

Also Published As

Publication number Publication date
GB2089411A (en) 1982-06-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee