BE570316A - - Google Patents
Info
- Publication number
- BE570316A BE570316A BE570316DA BE570316A BE 570316 A BE570316 A BE 570316A BE 570316D A BE570316D A BE 570316DA BE 570316 A BE570316 A BE 570316A
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
- F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
- F16K24/042—Devices, e.g. valves, for venting or aerating enclosures for venting only actuated by a float
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Safety Valves (AREA)
- Check Valves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG22747A DE1047737B (de) | 1957-08-13 | 1957-08-13 | Hydraulischer Grubenstempel und aehnliche Stuetzvorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE570316A true BE570316A (ru) |
Family
ID=7122021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE570316D BE570316A (ru) | 1957-08-13 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE570316A (ru) |
| DE (1) | DE1047737B (ru) |
| FR (1) | FR1201210A (ru) |
| GB (1) | GB892976A (ru) |
| NL (1) | NL230401A (ru) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL248713A (ru) * | 1959-02-23 | |||
| DE1231648B (de) * | 1960-08-11 | 1967-01-05 | Bochumer Eisen Heintzmann | Hydraulisches Ausbauelement, insbesondere fuer den untertaegigen Grubenbetrieb |
| DE3540531C1 (de) * | 1985-11-15 | 1987-01-08 | Hemscheidt Maschf Hermann | Wechselventil fuer hydraulischen Schreitausbau |
| DE68916267T2 (de) * | 1988-01-18 | 1994-10-13 | Diesel Kiki Co., Ltd., Tokio/Tokyo | Druckausgleichsventil. |
| FR3046463A1 (fr) | 2015-12-30 | 2017-07-07 | Dominique Lestelle | Dispositif de mesure resistive de l'humidite d'un materiau mineral poreux, et application au monitoring hydrique des plantes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR965222A (ru) * | 1947-04-24 | 1950-09-06 |
-
0
- BE BE570316D patent/BE570316A/xx unknown
- NL NL230401D patent/NL230401A/xx unknown
-
1957
- 1957-08-13 DE DEG22747A patent/DE1047737B/de active Pending
-
1958
- 1958-08-08 FR FR1201210D patent/FR1201210A/fr not_active Expired
- 1958-08-13 GB GB2608158A patent/GB892976A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1201210A (fr) | 1959-12-29 |
| GB892976A (en) | 1962-04-04 |
| NL230401A (ru) | |
| DE1047737B (de) | 1958-12-31 |