FR1275883A - Soupape de décompression notamment pour étançons hydrauliques - Google Patents
Soupape de décompression notamment pour étançons hydrauliquesInfo
- Publication number
- FR1275883A FR1275883A FR846558A FR846558A FR1275883A FR 1275883 A FR1275883 A FR 1275883A FR 846558 A FR846558 A FR 846558A FR 846558 A FR846558 A FR 846558A FR 1275883 A FR1275883 A FR 1275883A
- Authority
- FR
- France
- Prior art keywords
- relief valve
- pressure relief
- hydraulic props
- valve especially
- props
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR846558A FR1275883A (fr) | 1960-12-10 | 1960-12-10 | Soupape de décompression notamment pour étançons hydrauliques |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR846558A FR1275883A (fr) | 1960-12-10 | 1960-12-10 | Soupape de décompression notamment pour étançons hydrauliques |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1275883A true FR1275883A (fr) | 1961-11-10 |
Family
ID=8744511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR846558A Expired FR1275883A (fr) | 1960-12-10 | 1960-12-10 | Soupape de décompression notamment pour étançons hydrauliques |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1275883A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2422093A1 (fr) * | 1978-04-03 | 1979-11-02 | Commercial Shearing | Soupape de securite et etancon de mine equipe de cette soupape |
-
1960
- 1960-12-10 FR FR846558A patent/FR1275883A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2422093A1 (fr) * | 1978-04-03 | 1979-11-02 | Commercial Shearing | Soupape de securite et etancon de mine equipe de cette soupape |
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