GB979052A - Improvements in or relating to roof supports for underground mines - Google Patents

Improvements in or relating to roof supports for underground mines

Info

Publication number
GB979052A
GB979052A GB1310261A GB1310261A GB979052A GB 979052 A GB979052 A GB 979052A GB 1310261 A GB1310261 A GB 1310261A GB 1310261 A GB1310261 A GB 1310261A GB 979052 A GB979052 A GB 979052A
Authority
GB
United Kingdom
Prior art keywords
relating
roof supports
roof
underground mines
april
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
GB1310261A
Inventor
Frank Bonser
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.)
BONSER ENGINEERING Ltd
Original Assignee
BONSER ENGINEERING 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 BONSER ENGINEERING Ltd filed Critical BONSER ENGINEERING Ltd
Priority to GB1310261A priority Critical patent/GB979052A/en
Publication of GB979052A publication Critical patent/GB979052A/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
    • 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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices 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)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

979,052. Advancing mine roof supports. BONSER ENGINEERING Ltd. April 12, 1962 [April 12, 1961], No. 13102/61. Heading E1E. An advancing mine-roof support is provided in its roof-engaging portion with hydraulic rams 9, 9a connected by wire ropes 4, 5 respectively to a sliding extension 3 in the skid 2 for prop and conveyer advancement purposes, the ropes extending through tubular guides 13.
GB1310261A 1961-04-12 1961-04-12 Improvements in or relating to roof supports for underground mines Expired GB979052A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1310261A GB979052A (en) 1961-04-12 1961-04-12 Improvements in or relating to roof supports for underground mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1310261A GB979052A (en) 1961-04-12 1961-04-12 Improvements in or relating to roof supports for underground mines

Publications (1)

Publication Number Publication Date
GB979052A true GB979052A (en) 1965-01-01

Family

ID=10016870

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1310261A Expired GB979052A (en) 1961-04-12 1961-04-12 Improvements in or relating to roof supports for underground mines

Country Status (1)

Country Link
GB (1) GB979052A (en)

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