BE642929A - - Google Patents
Info
- Publication number
- BE642929A BE642929A BE642929A BE642929A BE642929A BE 642929 A BE642929 A BE 642929A BE 642929 A BE642929 A BE 642929A BE 642929 A BE642929 A BE 642929A BE 642929 A BE642929 A BE 642929A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Safety Valves (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG36909A DE1195251B (en) | 1963-01-26 | 1963-01-26 | Valve arrangement for hydraulic pit rams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE642929A true BE642929A (en) | 1964-05-15 |
Family
ID=7125502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE642929A BE642929A (en) | 1963-01-26 | 1964-01-24 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE642929A (en) |
| DE (1) | DE1195251B (en) |
| GB (1) | GB1050951A (en) |
| NL (1) | NL6400493A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1239648B (en) * | 1965-07-08 | 1967-05-03 | Hoesch Bergbautechnik G M B H | Hydraulic pit ram |
| DE1583067B1 (en) * | 1967-09-02 | 1970-11-19 | Thyssen Huette Ag | Valve for hydraulic pit ram |
| DE2636794C2 (en) * | 1975-09-09 | 1982-06-09 | Voest-Alpine AG, 1011 Wien | Rock impact valve for hydraulic pit support elements |
| AT339237B (en) * | 1975-09-09 | 1977-10-10 | Voest Ag | HYDRAULIC PIT STAMP |
| US4237769A (en) * | 1978-04-03 | 1980-12-09 | Commercial Shearing, Inc. | Relief valves and mine props incorporating the same |
| GB2152635A (en) * | 1984-01-05 | 1985-08-07 | Dobson Park Ind | Valve devices |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1078516B (en) * | 1956-07-17 | 1960-03-31 | Bwg Bergwerk Walzwerk | Compliant hydraulic pit ram |
| BE571152A (en) * | 1957-09-13 | |||
| DE1137405B (en) * | 1959-07-11 | 1962-10-04 | Kloeckner Werke Ag | Overpressure valves for hydraulic pit construction |
-
0
- GB GB1050951D patent/GB1050951A/en active Active
-
1963
- 1963-01-26 DE DEG36909A patent/DE1195251B/en active Pending
-
1964
- 1964-01-23 NL NL6400493A patent/NL6400493A/xx unknown
- 1964-01-24 BE BE642929A patent/BE642929A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1050951A (en) | |
| NL6400493A (en) | 1964-07-27 |
| DE1195251B (en) | 1965-06-24 |