BE668995A - - Google Patents
Info
- Publication number
- BE668995A BE668995A BE668995DA BE668995A BE 668995 A BE668995 A BE 668995A BE 668995D A BE668995D A BE 668995DA BE 668995 A BE668995 A BE 668995A
- Authority
- BE
- Belgium
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
- 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)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3552364A GB1095112A (en) | 1964-08-31 | 1964-08-31 | Advancing roof supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE668995A true BE668995A (is) | 1966-02-28 |
Family
ID=10378692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE668995D BE668995A (is) | 1964-08-31 | 1965-08-31 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE668995A (is) |
| GB (1) | GB1095112A (is) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2749312C2 (de) * | 1977-11-04 | 1984-12-20 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Steuereinrichtung mit Nachsetzautomatik für einen hydraulischen Stempelausbau |
| DE2759223C2 (de) * | 1977-12-31 | 1983-01-05 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Hydraulisches Leitungssystem für eine untertägige Mineralgewinnungsanlage, insbesondere Gleithobelanlage |
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1964
- 1964-08-31 GB GB3552364A patent/GB1095112A/en not_active Expired
-
1965
- 1965-08-31 BE BE668995D patent/BE668995A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1095112A (en) | 1967-12-13 |