BE560243A - - Google Patents
Info
- Publication number
- BE560243A BE560243A BE560243DA BE560243A BE 560243 A BE560243 A BE 560243A BE 560243D A BE560243D A BE 560243DA BE 560243 A BE560243 A BE 560243A
- 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
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
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)
- Actuator (AREA)
- Hydraulic Motors (AREA)
- Control Of Presses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB41542A DE1048852B (en) | 1956-08-25 | 1956-08-25 | Hydraulic support device, in particular pit ram |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE560243A true BE560243A (en) |
Family
ID=6966426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE560243D BE560243A (en) | 1956-08-25 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE560243A (en) |
| DE (1) | DE1048852B (en) |
| FR (1) | FR1186287A (en) |
| GB (1) | GB843354A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE559917A (en) * | 1956-10-16 | |||
| NL277490A (en) * | 1961-04-20 | |||
| GB991009A (en) * | 1962-06-07 | 1965-05-05 | Dowty Mining Equipment Ltd | Mining apparatus |
| BE635501A (en) * | 1962-07-27 | 1964-01-27 | ||
| DE1227410B (en) * | 1965-02-13 | 1966-10-27 | Gewerk Eisenhuette Westfalia | Valve arrangement for double-acting hydraulic pit rams, especially for stepping expansion units |
| AT339237B (en) * | 1975-09-09 | 1977-10-10 | Voest Ag | HYDRAULIC PIT STAMP |
| JP4262879B2 (en) * | 2000-10-10 | 2009-05-13 | カヤバ工業株式会社 | Lift cylinder |
| CN110307021B (en) * | 2019-07-29 | 2024-01-12 | 石家庄博安煤矿机械制造有限公司 | Hydraulic supporting device for coal mine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE510768C (en) * | 1928-03-06 | 1930-10-23 | Karl Albert | Feeding device for mills where the grist is introduced under pressure |
| DE926601C (en) * | 1950-04-26 | 1955-04-21 | Konrad Grebe | Hydraulic pit ram |
| DE925706C (en) * | 1953-06-25 | 1955-03-28 | Steinkohlenbergbauver | Hydraulic pit ram |
-
0
- BE BE560243D patent/BE560243A/xx unknown
-
1956
- 1956-08-25 DE DEB41542A patent/DE1048852B/en active Pending
-
1957
- 1957-08-20 FR FR1186287D patent/FR1186287A/en not_active Expired
- 1957-08-23 GB GB2661257A patent/GB843354A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1048852B (en) | 1959-01-22 |
| FR1186287A (en) | 1959-08-19 |
| GB843354A (en) | 1960-08-04 |