JPS4934883B1 - - Google Patents
Info
- Publication number
- JPS4934883B1 JPS4934883B1 JP45024921A JP2492170A JPS4934883B1 JP S4934883 B1 JPS4934883 B1 JP S4934883B1 JP 45024921 A JP45024921 A JP 45024921A JP 2492170 A JP2492170 A JP 2492170A JP S4934883 B1 JPS4934883 B1 JP S4934883B1
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15C1/00—Circuit elements having no moving parts
- F15C1/003—Circuit elements having no moving parts for process regulation, (e.g. chemical processes, in boilers or the like); for machine tool control (e.g. sewing machines, automatic washing machines); for liquid level control; for controlling various mechanisms; for alarm circuits; for ac-dc transducers for control purposes
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- 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
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- 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
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)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Lining And Supports For Tunnels (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB05839/69A GB1261110A (en) | 1969-03-26 | 1969-03-26 | Improvements in or relating to fluidic logic controlled hydraulic mine roof support systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4934883B1 true JPS4934883B1 (en) | 1974-09-18 |
Family
ID=10066459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP45024921A Pending JPS4934883B1 (en) | 1969-03-26 | 1970-03-26 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3664138A (en) |
| JP (1) | JPS4934883B1 (en) |
| AU (1) | AU1275170A (en) |
| DE (1) | DE2013404A1 (en) |
| FR (1) | FR2035897A1 (en) |
| GB (1) | GB1261110A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1407801A (en) * | 1971-10-28 | 1975-09-24 | Dowty Mining Equipment Ltd | Hydraulic apparatus |
| DE2700829C2 (en) * | 1977-01-11 | 1986-04-17 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Hydraulic extension control |
| DE3207517C2 (en) * | 1982-03-03 | 1985-09-05 | Gebr. Eickhoff Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum | Control for support frames for underground mining |
| DE3538251C1 (en) * | 1985-10-28 | 1986-11-06 | Bochumer Eisenhütte Heintzmann GmbH & Co KG, 4630 Bochum | Method for controlling devices of the underground mine operation to which a hydraulic working medium can be applied |
| DE10393849B4 (en) * | 2002-12-16 | 2016-07-21 | Tiefenbach Control Systems Gmbh | expand control |
| CN102606183A (en) * | 2012-04-10 | 2012-07-25 | 重庆友诚自动化工程技术有限公司 | Portable mining hydraulic support controller and control method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1251256B (en) * | 1959-10-12 | 1967-10-05 | Coal Industry (Patents) Limited, London | Wandering longwall mining |
| GB1063468A (en) * | 1964-10-26 | 1967-03-30 | Dowty Electrics Ltd | Mining apparatus |
| GB1121542A (en) * | 1965-03-18 | 1968-07-31 | Gullick Ltd | Improvements in or relating to the remote control of supports or chocks in self-advancing mine roof support systems |
| DE1583072B1 (en) * | 1967-10-18 | 1970-01-15 | Bergwerksverband Gmbh | Circuit, especially for controlling support frames or jacks for hydraulic longwall mining in underground mining |
| US3531159A (en) * | 1967-12-14 | 1970-09-29 | Bergwerksverband Gmbh | Automatic control systems for use in longwall mine workings |
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1969
- 1969-03-26 GB GB05839/69A patent/GB1261110A/en not_active Expired
-
1970
- 1970-03-17 US US20324A patent/US3664138A/en not_active Expired - Lifetime
- 1970-03-18 AU AU12751/70A patent/AU1275170A/en not_active Expired
- 1970-03-20 DE DE19702013404 patent/DE2013404A1/en active Pending
- 1970-03-24 FR FR7010477A patent/FR2035897A1/fr not_active Withdrawn
- 1970-03-26 JP JP45024921A patent/JPS4934883B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3664138A (en) | 1972-05-23 |
| DE2013404A1 (en) | 1970-10-01 |
| AU1275170A (en) | 1971-09-23 |
| FR2035897A1 (en) | 1970-12-24 |
| GB1261110A (en) | 1972-01-19 |