GB357369A - Improvements in automatic electric circuit-breakers - Google Patents
Improvements in automatic electric circuit-breakersInfo
- Publication number
- GB357369A GB357369A GB28254/30A GB2825430A GB357369A GB 357369 A GB357369 A GB 357369A GB 28254/30 A GB28254/30 A GB 28254/30A GB 2825430 A GB2825430 A GB 2825430A GB 357369 A GB357369 A GB 357369A
- Authority
- GB
- United Kingdom
- Prior art keywords
- breaker
- circuit
- breakers
- tripping member
- armature
- 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
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/48—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having both electrothermal and electromagnetic automatic release
- H01H73/50—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having both electrothermal and electromagnetic automatic release reset by lever
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
357,369. Automatic circuit-breakers. VOIGT & HAEFFNER AKT.-GES., 146, Hanauerlandstrasse, Frankfort-on-Main, Germany. Sept. 22, 1930, No. 28254. Convention date, May 8. [Class 38 (v).] In an automatic circuit-breaker of the loosehandle type, an electromagnetic overload release device has a pair of magnet windings 3a, 3b adapted to attract a spring-mounted armature 17 situated below a pivoted tripping member 19, 19a. The circuit-breaker is further provided with an independent slowly-acting thermal release due to a bimetallic current-carrying strip 20 mounted below the armature and adapted, when it bends upwards, to actuate a projecting part 19b of the tripping member 19. In the closure of the circuit-breaker, a pivoted handle 14 acts through overset toggle links on the movable contact member 5 and one of the links has a projecting limit 15 lying in the path of the tripping member 19 so that the toggle can be automatically broken by either of the releasing devices. The contact member and the handle are situated between the two magnet windings. Iron core-plates 2a, 2b are shaped and extended so as to form a magnetic blow-out.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US450737A US1923092A (en) | 1930-05-08 | 1930-05-08 | Electric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB357369A true GB357369A (en) | 1931-09-24 |
Family
ID=23789299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28254/30A Expired GB357369A (en) | 1930-05-08 | 1930-09-22 | Improvements in automatic electric circuit-breakers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1923092A (en) |
| GB (1) | GB357369A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2690486A (en) * | 1951-06-26 | 1954-09-28 | Heinemann Electric Co | Circuit breaker |
| US10236136B1 (en) * | 2018-02-24 | 2019-03-19 | Carling Technologies, Inc. | Arrangement for double break contact with electro-magnetic arc-blow |
-
1930
- 1930-05-08 US US450737A patent/US1923092A/en not_active Expired - Lifetime
- 1930-09-22 GB GB28254/30A patent/GB357369A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1923092A (en) | 1933-08-22 |
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