AU8305175A - Improvements in or relating to self-advancing mine roof supports - Google Patents

Improvements in or relating to self-advancing mine roof supports

Info

Publication number
AU8305175A
AU8305175A AU83051/75A AU8305175A AU8305175A AU 8305175 A AU8305175 A AU 8305175A AU 83051/75 A AU83051/75 A AU 83051/75A AU 8305175 A AU8305175 A AU 8305175A AU 8305175 A AU8305175 A AU 8305175A
Authority
AU
Australia
Prior art keywords
relating
self
mine roof
roof supports
advancing 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
AU83051/75A
Other versions
AU492358B2 (en
Inventor
Dawson Allen Archelaus
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.)
Gullick Dobson Ltd
Original Assignee
Gullick Dobson 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
Publication of AU492358B2 publication Critical patent/AU492358B2/en
Application filed by Gullick Dobson Ltd filed Critical Gullick Dobson Ltd
Publication of AU8305175A publication Critical patent/AU8305175A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/26—Hydraulic or pneumatic control
    • 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
    • E21D23/12—Control, e.g. using remote control
    • E21D23/14—Effecting automatic sequential movement of supports, e.g. one behind the other
    • E21D23/148—Wireless transmission of signals or commands

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)
  • Computer Networks & Wireless Communication (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Earth Drilling (AREA)
AU83051/75A 1975-07-15 Improvements in or relating to self-advancing mine roof supports Expired - Lifetime AU492358B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36490/74A GB1517711A (en) 1974-08-20 1974-08-20 Self-advancing mine roof supports

Publications (2)

Publication Number Publication Date
AU492358B2 AU492358B2 (en)
AU8305175A true AU8305175A (en) 1977-01-20

Family

ID=

Also Published As

Publication number Publication date
ZA754137B (en) 1976-06-30
FR2282529B3 (en) 1979-03-16
GB1517711A (en) 1978-07-12
DE2507106A1 (en) 1976-03-04
DE2507106B2 (en) 1977-02-24
FR2282529A1 (en) 1976-03-19
JPS5135601A (en) 1976-03-26

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