GB9213453D0 - Mining apparatus - Google Patents

Mining apparatus

Info

Publication number
GB9213453D0
GB9213453D0 GB929213453A GB9213453A GB9213453D0 GB 9213453 D0 GB9213453 D0 GB 9213453D0 GB 929213453 A GB929213453 A GB 929213453A GB 9213453 A GB9213453 A GB 9213453A GB 9213453 D0 GB9213453 D0 GB 9213453D0
Authority
GB
United Kingdom
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.)
Withdrawn
Application number
GB929213453A
Other versions
GB2268780A (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.)
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
Priority to GB9213453A priority Critical patent/GB2268780A/en
Publication of GB9213453D0 publication Critical patent/GB9213453D0/en
Priority to AU41458/93A priority patent/AU4145893A/en
Publication of GB2268780A publication Critical patent/GB2268780A/en
Withdrawn legal-status Critical Current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)
GB9213453A 1992-06-24 1992-06-24 Mining apparatus Withdrawn GB2268780A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9213453A GB2268780A (en) 1992-06-24 1992-06-24 Mining apparatus
AU41458/93A AU4145893A (en) 1992-06-24 1993-06-22 Mining apparatus

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
GB9213453D0 true GB9213453D0 (en) 1992-08-05
GB2268780A GB2268780A (en) 1994-01-19

Family

ID=10717694

Family Applications (1)

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GB9213453A Withdrawn GB2268780A (en) 1992-06-24 1992-06-24 Mining apparatus

Country Status (2)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103114867A (en) * 2013-02-22 2013-05-22 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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103114867A (en) * 2013-02-22 2013-05-22 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

Also Published As

Publication number Publication date
AU4145893A (en) 1994-01-06
GB2268780A (en) 1994-01-19

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)