AU4145893A - Mining apparatus - Google Patents

Mining apparatus

Info

Publication number
AU4145893A
AU4145893A AU41458/93A AU4145893A AU4145893A AU 4145893 A AU4145893 A AU 4145893A AU 41458/93 A AU41458/93 A AU 41458/93A AU 4145893 A AU4145893 A AU 4145893A AU 4145893 A AU4145893 A AU 4145893A
Authority
AU
Australia
Prior art keywords
mining apparatus
mining
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.)
Abandoned
Application number
AU41458/93A
Inventor
Colin Gordon Michael Merriman
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
Application filed by Gullick Dobson Ltd filed Critical Gullick Dobson Ltd
Publication of AU4145893A publication Critical patent/AU4145893A/en
Abandoned 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
    • E21D23/12—Control, e.g. using remote 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
    • 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
    • E21D23/142—Measuring the advance of support units with respect to external points of reference
    • 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
    • E21D23/144—Measuring the advance of support units with respect to internal points of reference, e.g. with respect to neighboring support units or extension of a cylinder

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)
  • Control Of Conveyors (AREA)
AU41458/93A 1992-06-24 1993-06-22 Mining apparatus Abandoned AU4145893A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9213453 1992-06-24
GB9213453A GB2268780A (en) 1992-06-24 1992-06-24 Mining apparatus

Publications (1)

Publication Number Publication Date
AU4145893A true AU4145893A (en) 1994-01-06

Family

ID=10717694

Family Applications (1)

Application Number Title Priority Date Filing Date
AU41458/93A Abandoned AU4145893A (en) 1992-06-24 1993-06-22 Mining apparatus

Country Status (2)

Country Link
AU (1) AU4145893A (en)
GB (1) GB2268780A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103114867B (en) * 2013-02-22 2015-07-22 广州日滨科技发展有限公司 Automatic straightening method and system for hydraulic supports and scraper conveyors of fully-mechanized coal mining working faces
CN103244163B (en) * 2013-05-23 2015-07-29 北京天地玛珂电液控制系统有限公司 A kind of with array close to the working surface hydraulic support of sensing device and straightness accuracy control method thereof
CN112796814B (en) * 2020-12-07 2023-05-23 北京天玛智控科技股份有限公司 Control method and device of hydraulic support, electronic equipment and storage medium

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2237798A1 (en) * 1972-08-01 1974-02-14 Gewerk Eisenhuette Westfalia STREBAASBAU
US3777899A (en) * 1972-08-14 1973-12-11 Harrischfeger Corp Bounce-preventing control for hydraulic cylinder
US4733602A (en) * 1986-03-17 1988-03-29 Wabco Ltd. Hydraulic brake actuator with parking brake
GB2190962A (en) * 1986-05-30 1987-12-02 Marco Romeo Sarra Lifting jacks

Also Published As

Publication number Publication date
GB2268780A (en) 1994-01-19
GB9213453D0 (en) 1992-08-05

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