GB1114044A - Roof support assembly suitable for use in a mine - Google Patents

Roof support assembly suitable for use in a mine

Info

Publication number
GB1114044A
GB1114044A GB4462265A GB4462265A GB1114044A GB 1114044 A GB1114044 A GB 1114044A GB 4462265 A GB4462265 A GB 4462265A GB 4462265 A GB4462265 A GB 4462265A GB 1114044 A GB1114044 A GB 1114044A
Authority
GB
United Kingdom
Prior art keywords
carrier
support
mine
jack
support assembly
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
GB4462265A
Inventor
Dennis Henry Cannon
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 GB4462265A priority Critical patent/GB1114044A/en
Publication of GB1114044A publication Critical patent/GB1114044A/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
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith

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)
  • Framework For Endless Conveyors (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

1,114,044. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. Dec. 22, 1966 [Oct.21, 1965], No.44622/65. Heading F1P. The fluid-pressure operated advancing jack 4 of a mine roof support 2 is connected by a flexible hauling element 11, passing around pulleys 13, 10 on a carrier 6 secured to or forming part of a conveyer 5, to a second jack 8 mounted on the carrier 6, whereby when the support is released from the roof and both jacks are contracted the support is advanced by an amount equal to the sum of the individual jack strokes. The carrier 6 is secured to the conveyer 5 by a pivot 7.
GB4462265A 1965-10-21 1965-10-21 Roof support assembly suitable for use in a mine Expired GB1114044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4462265A GB1114044A (en) 1965-10-21 1965-10-21 Roof support assembly suitable for use in a mine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4462265A GB1114044A (en) 1965-10-21 1965-10-21 Roof support assembly suitable for use in a mine

Publications (1)

Publication Number Publication Date
GB1114044A true GB1114044A (en) 1968-05-15

Family

ID=10434109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4462265A Expired GB1114044A (en) 1965-10-21 1965-10-21 Roof support assembly suitable for use in a mine

Country Status (1)

Country Link
GB (1) GB1114044A (en)

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