GB440513A - Improvements relating to electric switches or circuit breakers - Google Patents
Improvements relating to electric switches or circuit breakersInfo
- Publication number
- GB440513A GB440513A GB29745/34A GB2974534A GB440513A GB 440513 A GB440513 A GB 440513A GB 29745/34 A GB29745/34 A GB 29745/34A GB 2974534 A GB2974534 A GB 2974534A GB 440513 A GB440513 A GB 440513A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spaces
- arc
- plates
- insulating
- tube
- 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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
Landscapes
- Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
440,513. Arc-rupturing in switches. ELLISON, Ltd., G., and ANDERSON, J., Wellhead Lane Works, Perry Bar, Birming- ham. Oct. 17, 1934, No. 29745. Addition to 345,454. [Class 38 (v)] The invention of the parent Specification is modified by mounting within the apertures in the pile of spaced plates i of non-magnetic material, an insulating tube q having a longitudinal slot r formed in one side of it, through which the arc can escape to the spaces between the plates. The fixed contact b is mounted in the tube q with slight clearance and extends downwards across several of the spaces. The central core has an insulating sleeve m, and insulating sleeves p surround the rods forming the return path for the flux. Insulating rings j separate the plates i from one another and enclose the spaces between them. When the movable contacts f are lowered to open the circuit, the arcs pass through the slots r into the spaces where they aro whirled round by the radial field set up by the coil. If the arc makes a complete rotation, it is deflected by the closed side of the tube and so prevented from joining either contact again. When first formed, one end of the arc can travel up contact b into the upper plates, but an insulating sleeve h prevents movement along the movable contact f.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB29745/34A GB440513A (en) | 1934-10-17 | 1934-10-17 | Improvements relating to electric switches or circuit breakers |
| US757576A US2058656A (en) | 1934-10-17 | 1934-12-14 | Electric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB29745/34A GB440513A (en) | 1934-10-17 | 1934-10-17 | Improvements relating to electric switches or circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB440513A true GB440513A (en) | 1936-01-01 |
Family
ID=10296482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29745/34A Expired GB440513A (en) | 1934-10-17 | 1934-10-17 | Improvements relating to electric switches or circuit breakers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2058656A (en) |
| GB (1) | GB440513A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL239190A (en) * | 1959-03-14 | |||
| US3894204A (en) * | 1974-02-19 | 1975-07-08 | Ite Imperial Corp | 38KV low current fused switch |
-
1934
- 1934-10-17 GB GB29745/34A patent/GB440513A/en not_active Expired
- 1934-12-14 US US757576A patent/US2058656A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2058656A (en) | 1936-10-27 |
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