PL242656A1 - Fluid control valve in particular for pressurized hydraulic systems of piston-type advancing mechanisms for members of self-advanicing roof supports used in inderground mining - Google Patents
Fluid control valve in particular for pressurized hydraulic systems of piston-type advancing mechanisms for members of self-advanicing roof supports used in inderground miningInfo
- Publication number
- PL242656A1 PL242656A1 PL24265683A PL24265683A PL242656A1 PL 242656 A1 PL242656 A1 PL 242656A1 PL 24265683 A PL24265683 A PL 24265683A PL 24265683 A PL24265683 A PL 24265683A PL 242656 A1 PL242656 A1 PL 242656A1
- Authority
- PL
- Poland
- Prior art keywords
- inderground
- advanicing
- mining
- piston
- members
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title 1
- 230000007246 mechanism Effects 0.000 title 1
- 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
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)
- Sliding Valves (AREA)
- Multiple-Way Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823223591 DE3223591A1 (en) | 1982-06-24 | 1982-06-24 | Control valve, in particular for a hydraulic self-advancing support with a water hydraulic system |
Publications (1)
Publication Number | Publication Date |
---|---|
PL242656A1 true PL242656A1 (en) | 1984-02-13 |
Family
ID=6166742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL24265683A PL242656A1 (en) | 1982-06-24 | 1983-06-23 | Fluid control valve in particular for pressurized hydraulic systems of piston-type advancing mechanisms for members of self-advanicing roof supports used in inderground mining |
Country Status (4)
Country | Link |
---|---|
CS (1) | CS450583A2 (en) |
DE (1) | DE3223591A1 (en) |
PL (1) | PL242656A1 (en) |
SU (1) | SU1358790A3 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3506185A1 (en) * | 1985-02-22 | 1986-08-28 | Thyssen Industrie AG Schmiedetechnik/Bergbautechnik, 4100 Duisburg | Control valve for a self-advancing support system |
CN100359188C (en) * | 2004-03-19 | 2008-01-02 | 王冠军 | Hydraulic selector valve |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2056809A1 (en) * | 1970-11-19 | 1972-05-25 | Rexroth Gmbh G L | Control valve with pilot control device |
DE2157347A1 (en) * | 1970-11-18 | 1972-07-27 | Girling Ltd | Valve, in particular for hydraulically actuated motor vehicle brake systems |
DE2832964C2 (en) * | 1978-07-27 | 1982-09-09 | Thyssen Industrie Ag, 4300 Essen | Overpressure valve, primarily for hydraulic thrust piston gears of expansion elements in underground mining operations |
-
1982
- 1982-06-24 DE DE19823223591 patent/DE3223591A1/en not_active Withdrawn
-
1983
- 1983-06-20 CS CS834505A patent/CS450583A2/en unknown
- 1983-06-23 SU SU833610549A patent/SU1358790A3/en active
- 1983-06-23 PL PL24265683A patent/PL242656A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
SU1358790A3 (en) | 1987-12-07 |
CS450583A2 (en) | 1984-03-20 |
DE3223591A1 (en) | 1983-12-29 |
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