GB465380A - Improvements in electric circuit breakers - Google Patents
Improvements in electric circuit breakersInfo
- Publication number
- GB465380A GB465380A GB5089/36A GB508936A GB465380A GB 465380 A GB465380 A GB 465380A GB 5089/36 A GB5089/36 A GB 5089/36A GB 508936 A GB508936 A GB 508936A GB 465380 A GB465380 A GB 465380A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- oil
- contact
- perforations
- switch
- 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
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Housings And Mounting Of Transformers (AREA)
- Circuit Breakers (AREA)
Abstract
465,380. Oil-break switches; contacts. WHITEHEAD, G. E., and WHITEHEAD'S ELECTRICAL INVENTIONS, Ltd. Feb. 19, 1936, No. 5089. [Class 38 (v)] A switch or circuitbreaker has its " fixed " contact located in a perforation in a partition or barrier across the oil tank but leaving one or more channels which is or are adapted to be nearly closed by a valve except when the switch or breaker contacts are closed. As applied to the circuit-breaker described in Specification 464,643, in which the "fixed" contact 3 is urged towards the movable contact 2 by a spring 8 and is in sliding engagement with a resilient sleeve contact 6, for example of the character described in Specification 409,085, in a tubular extension 7 of the terminal stem 4, the valve is in the form of a flanged member 15 carried by the pin 10 which engages slots 9 in the extension 7 to limit the travel of contact 3. The flange is provided with recesses 16 which are staggered with respect to longitudinal pressure-relieving grooves 14 formed in the tube 7. There is a slight clearance between 7 and the insulating shrouding tube 11 which is housed in perforations in cross-barriers 12, 13 in the switch-tank. When open, the valve allows free access between both sides of the partitions, and when the breaker opens, the valve causes the oil under the partitions to be placed under pressure, the oil only slowly escaping through the perforations. With excessive pressure the valve is lifted, but in any case the oil flows back through the tube when normal conditions are restored. Perforations may replace the recesses 14, 16.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB29304/35A GB464643A (en) | 1935-10-23 | 1935-10-23 | Improvements in electric switches and circuit breakers having butt contacts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB465380A true GB465380A (en) | 1937-05-06 |
Family
ID=10289415
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29304/35A Expired GB464643A (en) | 1935-10-23 | 1935-10-23 | Improvements in electric switches and circuit breakers having butt contacts |
| GB5089/36A Expired GB465380A (en) | 1935-10-23 | 1936-02-19 | Improvements in electric circuit breakers |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29304/35A Expired GB464643A (en) | 1935-10-23 | 1935-10-23 | Improvements in electric switches and circuit breakers having butt contacts |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2158920A (en) |
| BE (1) | BE417611A (en) |
| FR (1) | FR811643A (en) |
| GB (2) | GB464643A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3327083A (en) * | 1964-12-07 | 1967-06-20 | Allis Chalmers Mfg Co | Multi-chambered arc interrupter having fluid pump |
-
0
- BE BE417611D patent/BE417611A/xx unknown
-
1935
- 1935-10-23 GB GB29304/35A patent/GB464643A/en not_active Expired
-
1936
- 1936-02-19 GB GB5089/36A patent/GB465380A/en not_active Expired
- 1936-09-18 US US101506A patent/US2158920A/en not_active Expired - Lifetime
- 1936-10-07 FR FR811643D patent/FR811643A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE417611A (en) | |
| US2158920A (en) | 1939-05-16 |
| FR811643A (en) | 1937-04-19 |
| GB464643A (en) | 1937-04-22 |
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