BE649895A - - Google Patents
Info
- Publication number
- BE649895A BE649895A BE649895A BE649895A BE649895A BE 649895 A BE649895 A BE 649895A BE 649895 A BE649895 A BE 649895A BE 649895 A BE649895 A BE 649895A BE 649895 A BE649895 A BE 649895A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
-
- 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
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- 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
- F16K17/0466—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 a special seating surface
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES85932A DE1217317B (en) | 1963-07-01 | 1963-07-01 | Relief valve for hydraulic pit rams or hydraulic pit support |
Publications (1)
Publication Number | Publication Date |
---|---|
BE649895A true BE649895A (en) | 1964-10-16 |
Family
ID=7512671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE649895A BE649895A (en) | 1963-07-01 | 1964-06-29 |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE649895A (en) |
DE (1) | DE1217317B (en) |
GB (1) | GB1019159A (en) |
NL (1) | NL6407487A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2627233A1 (en) * | 1976-06-18 | 1977-12-29 | Pier Armaturen Gmbh | SAFETY VALVE |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4566486A (en) * | 1982-03-08 | 1986-01-28 | Taylor Julian S | Soft seat for safety valve |
DE3444039A1 (en) * | 1984-12-03 | 1986-06-05 | Herion-Werke Kg, 7012 Fellbach | CONTROL VALVE |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1380415A (en) * | 1919-04-10 | 1921-06-07 | James K Putnam | Check-valve |
DE464802C (en) * | 1924-09-14 | 1928-08-27 | Peter Marx | Pump valve set with interchangeable seats |
BE571508A (en) * | 1957-09-28 |
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1963
- 1963-07-01 DE DES85932A patent/DE1217317B/en active Pending
-
1964
- 1964-06-02 GB GB2267864A patent/GB1019159A/en not_active Expired
- 1964-06-29 BE BE649895A patent/BE649895A/xx unknown
- 1964-07-01 NL NL6407487A patent/NL6407487A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2627233A1 (en) * | 1976-06-18 | 1977-12-29 | Pier Armaturen Gmbh | SAFETY VALVE |
Also Published As
Publication number | Publication date |
---|---|
NL6407487A (en) | 1965-01-04 |
DE1217317B (en) | 1966-05-26 |
GB1019159A (en) | 1966-02-02 |