GB532034A - Improvements in and relating to electric circuit breakers and contacts therefor - Google Patents
Improvements in and relating to electric circuit breakers and contacts thereforInfo
- Publication number
- GB532034A GB532034A GB23309/39A GB2330939A GB532034A GB 532034 A GB532034 A GB 532034A GB 23309/39 A GB23309/39 A GB 23309/39A GB 2330939 A GB2330939 A GB 2330939A GB 532034 A GB532034 A GB 532034A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- arcing
- springs
- relating
- aug
- 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
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
Abstract
532,034. Switch contacts; oil-break switches. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 12, 1939, No. 23309. Convention date, Aug. 13, 1938. [Class 38 (v)] In order to prevent rebound and consequent arcing when closing the contacts of oil or other heavy-current switches, without however impairing the closing-shock absorbing capabilities of the contact-springs, two or more parallel - connected (arcing) contacts, as 7, 8, are provided with control springs 10, 11 having different natural periods of vibration so that when one tends to rebound, the other is in engagement with its moving contact 13 or 14. Instead of making one spring heavier, 11, as shown, similar springs may be employed, in which case they are secured to their contacts 7, 8 and the latter have different masses. The resilient contacts may both be mounted on the movable bridge-member 16, or one on 16 and one on the fixed structure. The main contacts are shown at 5, 6 behind the arcing-contacts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US224752A US2185166A (en) | 1938-08-13 | 1938-08-13 | Electric circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB532034A true GB532034A (en) | 1941-01-16 |
Family
ID=22842027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23309/39A Expired GB532034A (en) | 1938-08-13 | 1939-08-12 | Improvements in and relating to electric circuit breakers and contacts therefor |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2185166A (en) |
| GB (1) | GB532034A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2259810A (en) * | 1991-09-20 | 1993-03-24 | Chance Co Ab | Arc spinner interrupter. |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2421267A (en) * | 1942-06-24 | 1947-05-27 | Bbc Brown Boveri & Cie | Mechanical switching device |
| DE926798C (en) * | 1944-11-03 | 1955-04-25 | Siemens Ag | Contact arrangement |
| US2832853A (en) * | 1954-11-03 | 1958-04-29 | Ite Circuit Breaker Ltd | Shock absorber for electric contacts |
-
1938
- 1938-08-13 US US224752A patent/US2185166A/en not_active Expired - Lifetime
-
1939
- 1939-08-12 GB GB23309/39A patent/GB532034A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2259810A (en) * | 1991-09-20 | 1993-03-24 | Chance Co Ab | Arc spinner interrupter. |
| GB2259810B (en) * | 1991-09-20 | 1995-04-05 | Chance Co Ab | Arc interrupter apparatus having contact bounce suppressor |
Also Published As
| Publication number | Publication date |
|---|---|
| US2185166A (en) | 1939-12-26 |
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