GB2087963B - Shield supports suitable for use in mines - Google Patents

Shield supports suitable for use in mines

Info

Publication number
GB2087963B
GB2087963B GB8037528A GB8037528A GB2087963B GB 2087963 B GB2087963 B GB 2087963B GB 8037528 A GB8037528 A GB 8037528A GB 8037528 A GB8037528 A GB 8037528A GB 2087963 B GB2087963 B GB 2087963B
Authority
GB
United Kingdom
Prior art keywords
mines
supports suitable
shield supports
shield
supports
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
GB8037528A
Other versions
GB2087963A (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.)
Dowty Mining Equipment Ltd
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
Priority to GB8037528A priority Critical patent/GB2087963B/en
Publication of GB2087963A publication Critical patent/GB2087963A/en
Application granted granted Critical
Publication of GB2087963B publication Critical patent/GB2087963B/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
    • 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
    • E21D23/04—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
    • E21D23/0427—Shield operating devices; Hinges therefor

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)
  • Tents Or Canopies (AREA)
GB8037528A 1980-11-22 1980-11-22 Shield supports suitable for use in mines Expired GB2087963B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8037528A GB2087963B (en) 1980-11-22 1980-11-22 Shield supports suitable for use in mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8037528A GB2087963B (en) 1980-11-22 1980-11-22 Shield supports suitable for use in mines

Publications (2)

Publication Number Publication Date
GB2087963A GB2087963A (en) 1982-06-03
GB2087963B true GB2087963B (en) 1984-05-31

Family

ID=10517501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8037528A Expired GB2087963B (en) 1980-11-22 1980-11-22 Shield supports suitable for use in mines

Country Status (1)

Country Link
GB (1) GB2087963B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136040B (en) * 1983-03-08 1986-06-11 Dobson Park Ind Pivotal linkage of a mine roof support
DE3531668A1 (en) * 1985-09-05 1987-03-12 Gewerk Eisenhuette Westfalia JOINT CONNECTION FOR THE GAP COVERINGS ON THE BREAKAGE PLATE AND ON THE HANGING CAP OF A SHIELD EXTENSION FRAME

Also Published As

Publication number Publication date
GB2087963A (en) 1982-06-03

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Legal Events

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