BE559110A - - Google Patents
Info
- Publication number
- BE559110A BE559110A BE559110DA BE559110A BE 559110 A BE559110 A BE 559110A BE 559110D A BE559110D A BE 559110DA BE 559110 A BE559110 A BE 559110A
- 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
-
- 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
- E21D23/0069—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 without essential advancing shifting 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)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Actuator (AREA)
- Separation By Low-Temperature Treatments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH20419A DE1024040B (de) | 1956-07-11 | 1956-07-11 | Absperrventil fuer einen mit Fluessigkeit gefuellten Druckraum bei Grubenausbaumitteln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE559110A true BE559110A (fi) |
Family
ID=7428760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE559110D BE559110A (fi) | 1956-07-11 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2912211A (fi) |
| BE (1) | BE559110A (fi) |
| DE (1) | DE1024040B (fi) |
| FR (1) | FR1178396A (fi) |
| GB (1) | GB852354A (fi) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB904866A (en) * | 1958-06-30 | 1962-08-29 | Dowty Mining Equipment Ltd | Improvements in hydraulic props |
| DE1082212B (de) * | 1958-12-31 | 1960-05-25 | Bwg Bergwerk Walzwerk | Be- und Entlueftungsventil fuer hydraulische Grubenstempel |
| DE1231648B (de) * | 1960-08-11 | 1967-01-05 | Bochumer Eisen Heintzmann | Hydraulisches Ausbauelement, insbesondere fuer den untertaegigen Grubenbetrieb |
| NL277490A (fi) * | 1961-04-20 | |||
| CN110748366A (zh) * | 2019-10-20 | 2020-02-04 | 山西晋城无烟煤矿业集团有限责任公司 | 一种液压阀阀芯磁力安装机构 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR354739A (fr) * | 1905-05-25 | 1905-10-11 | Albert Cordebart | Appareil pour le gonflement des bandages pneumatiques |
| US1026471A (en) * | 1910-06-13 | 1912-05-14 | George R Siefken | Ventilator. |
| US2247568A (en) * | 1938-05-13 | 1941-07-01 | Proportioneers Inc | Injection nozzle |
| GB538377A (en) * | 1940-01-30 | 1941-07-31 | Du Pont | Manufacture of dyestuffs of the anthraquinone series |
| US2502158A (en) * | 1946-09-27 | 1950-03-28 | Kuskey Rude | Backup trap |
| BE494572A (fi) * | 1949-12-08 | |||
| BE511527A (fi) * | 1951-05-21 |
-
0
- BE BE559110D patent/BE559110A/xx unknown
-
1956
- 1956-07-11 DE DESCH20419A patent/DE1024040B/de active Pending
-
1957
- 1957-07-08 US US670538A patent/US2912211A/en not_active Expired - Lifetime
- 1957-07-10 GB GB21811/57A patent/GB852354A/en not_active Expired
- 1957-07-11 FR FR1178396D patent/FR1178396A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1178396A (fr) | 1959-05-06 |
| US2912211A (en) | 1959-11-10 |
| DE1024040B (de) | 1958-02-13 |
| GB852354A (en) | 1960-10-26 |