GB451431A - Improvements in and relating to gas-blast electric switches - Google Patents
Improvements in and relating to gas-blast electric switchesInfo
- Publication number
- GB451431A GB451431A GB4805/35A GB480535A GB451431A GB 451431 A GB451431 A GB 451431A GB 4805/35 A GB4805/35 A GB 4805/35A GB 480535 A GB480535 A GB 480535A GB 451431 A GB451431 A GB 451431A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- nozzle
- tube
- blast
- movement
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
Abstract
451,431. Gas-blast switches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Feb. 14, 1935, No. 4805. Convention date, Feb. 14, 1934. Addition to 451,233. [Class 38 (v)] In a gas - blast switch as claimed in the parent Specification and in which the compressed gas is produced by the operation of the circuitbreaker, the contacts are arranged, during the initial stage of the switching-off movement, to remain in touch and to move together over a portion of the break path. In the arrangement shown, the nozzle b is carried by a member u slidably mounted, under the control of a spring r, on the end of the tube c surrounding the contact a. The gas blast is produced by a piston x carried by the tube c. When the switch opens, the tube c, nozzle b and contact a are moved downwardly, and the contact d follows the movement, under the action of a spring y, until its further movement is prevented by an adjustable stop z. The tube c continues its downward movement, with separation of the contacts and shortly afterwards the nozzle b is raised either by the air pressure beneath it or by the engagement of a lever s with a cam t, to open the air passage through the nozzle, whereupon the air blast blows out the arc.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE451431X | 1934-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB451431A true GB451431A (en) | 1936-08-06 |
Family
ID=6538518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4805/35A Expired GB451431A (en) | 1934-02-14 | 1935-02-14 | Improvements in and relating to gas-blast electric switches |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE451431A (en) |
| GB (1) | GB451431A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2978560A (en) * | 1958-03-20 | 1961-04-04 | Ite Circuit Breaker Ltd | Interrupter unit for telescoping blade switch |
| US3137779A (en) * | 1957-11-05 | 1964-06-16 | Latour Andre | Circuit-breakers having magnetic blow-out means |
-
0
- BE BE451431D patent/BE451431A/xx unknown
-
1935
- 1935-02-14 GB GB4805/35A patent/GB451431A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3137779A (en) * | 1957-11-05 | 1964-06-16 | Latour Andre | Circuit-breakers having magnetic blow-out means |
| US2978560A (en) * | 1958-03-20 | 1961-04-04 | Ite Circuit Breaker Ltd | Interrupter unit for telescoping blade switch |
Also Published As
| Publication number | Publication date |
|---|---|
| BE451431A (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB700491A (en) | Arrangement in air-blast electric circuit breakers provided with damping resistances | |
| GB494044A (en) | Improvements in and relating to fluid blast electric switches | |
| GB388125A (en) | Improvements in and relating to gas-blast electric switches | |
| GB736090A (en) | Improvements in or relating to electric circuit breakers | |
| GB451431A (en) | Improvements in and relating to gas-blast electric switches | |
| GB578422A (en) | Improvements in or relating to fluid blast electric circuit interrupters | |
| GB537861A (en) | Gas blast circuit breaker | |
| GB620371A (en) | Improvements in or relating to oil circuit breakers having explosion chambers | |
| GB837825A (en) | Improvements relating to air-blast electrical circuit-breakers | |
| GB443416A (en) | Improvements in and relating to electric gas-blast switches | |
| GB538672A (en) | Compressed air circuit breaker having a resistance bridging the contacts | |
| GB542601A (en) | Improvements in or relating to gas blast circuit breakers | |
| GB681985A (en) | Improvements relating to air-blast switches | |
| GB549595A (en) | Improvements in gas blast electric circuit breakers | |
| GB733444A (en) | Improvements in and relating to gas-blast electric circuit breakers | |
| GB563642A (en) | Improvements in or relating to electric circuit interrupters | |
| GB643808A (en) | Improvements in or relating to fluid blast electric circuit interrupters | |
| GB541940A (en) | Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type | |
| GB504305A (en) | Improvements in or relating to compressed-gas operated electric switches | |
| GB524983A (en) | Improvements in and relating to gas blast electric switches | |
| GB436422A (en) | Improvements in and relating to gas blast electric switches | |
| US2419447A (en) | Electric circuit interrupter | |
| US3291946A (en) | Gas-blast circuit breaker with means for throttling gas flow during a switching-out operation | |
| GB1500650A (en) | Gas-blast electric cut-out device | |
| GB546399A (en) | Improvements in electric compressed air blow-out switches |