GB856198A - Operating device for a pneumatic valve, in particular a blast valve for an electric circuit breaker - Google Patents
Operating device for a pneumatic valve, in particular a blast valve for an electric circuit breakerInfo
- Publication number
- GB856198A GB856198A GB10107/59A GB1010759A GB856198A GB 856198 A GB856198 A GB 856198A GB 10107/59 A GB10107/59 A GB 10107/59A GB 1010759 A GB1010759 A GB 1010759A GB 856198 A GB856198 A GB 856198A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- valve
- channel
- blast
- air
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/32—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic
Landscapes
- Fluid-Driven Valves (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
856,198. Air-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. March 24, 1959 [March 26, 1958], No. 10107/59. Class 38 (5). In an air-blast circuit-breaker, such as that of Specification 770,100, having a blast valve 4 opened when compressed-air is supplied through a pipe 9 to the lower face of a piston 2, the space above the piston 2 is connected to atmosphere through a channel 10 to ensure rapid operation of the valve. The channel 10 is closed as the piston reaches the end of its travel and remains closed as compressed-air through an aperture 11 in the piston 2 equalizes the pressure on both sides of the piston to permit the return of the piston 2 and the reclosing of the blast valve 4. The channel 10 is only re-opened as pressure in the space above the piston 2 falls on connecting the pipe 9 to atmosphere. In Fig. 1 the channel 10 is closed by a valve disc 13 which is axially movable on the piston-rod 3 and when moved up by the piston 2 against a seating 15 is retained there by the pressure in the space above the piston 2. In Fig. 2 (not shown), the piston 2, as it moves into its uppermost position, opens a port leading to a valve-operating member which closes an outlet valve in the channel 10.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE291458 | 1958-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB856198A true GB856198A (en) | 1960-12-14 |
Family
ID=20260992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10107/59A Expired GB856198A (en) | 1958-03-26 | 1959-03-24 | Operating device for a pneumatic valve, in particular a blast valve for an electric circuit breaker |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3005077A (en) |
| CH (1) | CH368536A (en) |
| DE (1) | DE1072679B (en) |
| FR (1) | FR1231712A (en) |
| GB (1) | GB856198A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1218117B (en) * | 1963-04-09 | 1966-06-02 | Rheinstahl Eisenwerk Hilden Ag | Membrane compression molding device for compacting the molding sand in molding boxes divided by cross members and a method for operating the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1212189B (en) * | 1962-11-09 | 1966-03-10 | Bbc Brown Boveri & Cie | Pulse-like switching device for compressed gas switch |
| US3639713A (en) * | 1968-12-10 | 1972-02-01 | Westinghouse Electric Corp | Operating mechanism for a circuit interrupter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2803724A (en) * | 1954-06-04 | 1957-08-20 | Asea Ab | Operating device for air blast circuit breakers |
| BE557909A (en) * | 1956-07-10 | Merlin Gerin |
-
0
- DE DENDAT1072679D patent/DE1072679B/de active Pending
-
1959
- 1959-03-19 US US800549A patent/US3005077A/en not_active Expired - Lifetime
- 1959-03-23 CH CH7114559A patent/CH368536A/en unknown
- 1959-03-24 GB GB10107/59A patent/GB856198A/en not_active Expired
- 1959-03-26 FR FR790459A patent/FR1231712A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1218117B (en) * | 1963-04-09 | 1966-06-02 | Rheinstahl Eisenwerk Hilden Ag | Membrane compression molding device for compacting the molding sand in molding boxes divided by cross members and a method for operating the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CH368536A (en) | 1963-04-15 |
| DE1072679B (en) | 1960-01-07 |
| FR1231712A (en) | 1960-10-03 |
| US3005077A (en) | 1961-10-17 |
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