AU4145893A - Mining apparatus - Google Patents
Mining apparatusInfo
- 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
Links
- 238000005065 mining Methods 0.000 title 1
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)
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)
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)
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 |
-
1992
- 1992-06-24 GB GB9213453A patent/GB2268780A/en not_active Withdrawn
-
1993
- 1993-06-22 AU AU41458/93A patent/AU4145893A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
GB2268780A (en) | 1994-01-19 |
GB9213453D0 (en) | 1992-08-05 |
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