GB347007A - - Google Patents
Info
- Publication number
- GB347007A GB347007A GB13019/30A GB1301930A GB347007A GB 347007 A GB347007 A GB 347007A GB 13019/30 A GB13019/30 A GB 13019/30A GB 1301930 A GB1301930 A GB 1301930A GB 347007 A GB347007 A GB 347007A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spring
- abutment
- pivoted
- switches
- contacts
- 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
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release mechanism
- H01H2071/506—Latching devices between operating and release mechanism using balls or rollers in the latching device
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
347,007. Automatic circuit-breakers. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.-(Assignees of Slepian, J. ; 1115, Lancaster Street, Pittsburg, U.S.A.) April 28, 1930, No. 13019. Convention date, April 27, 1929. [Class 38 (v).] Electromagnetic switches; impact switches; magnetic blow-outs.-Relates to switches wherein the initial separation of the contacts takes place at a high rate of acceleration under the action of mechanism that is first accelerated and then applies an impulse to separate the contacts. The latter, if of copper, are preferably arranged to be separated <1>/32 of an inch in 0À001 seconds or less, so that a magnetic blow-out can move the arc before the contacts reach a temperature high enough to cause extensive vaporization. In Fig. 1, a spring 14 acting on an abutment 13 urges a movable contact 3 to bridge arc members 4, 5. Energization of a solenoid 15 moves a roller 16 so that a lever 6, pivoted at 7, is urged by a spring 8 to apply an impulse to the abutment 13 and move the contact 3 from the member 4 at high speed. The effect may be modified by arranging for the member 3 to slide on the member 4 before leaving it, thus allowing a smaller acceleration of the former. In a modification (Fig. 3, not shown), the member 5 is also arranged to move away from the member 4 a short distance against the action of a spring, and is connected to the right-hand abutment of spring 14 so as to be moved when the latter is sufficiently compressed by the impact. Fig. 7 shows a commercial form in which an electromagnet 24 holds one end of an armature 22, which is pivoted at 23 and connected by a tension spring 20 with a fixed abutment and by a second spring 28 with a movable contact-arm 26 pivoted at 27. On de-energization of the magnet 24, both springs act on the armature until a hammer 25 thereon strikes the arm 26 to drive it from the fixed contact, the spring 20 alone completing the opening movement. The strength of the blow-out field may be one-half a gauss per ampere of current.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US358604A US1966188A (en) | 1929-04-27 | 1929-04-27 | Electric switch |
Publications (1)
Publication Number | Publication Date |
---|---|
GB347007A true GB347007A (en) | 1931-04-23 |
Family
ID=23410328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13019/30A Expired GB347007A (en) | 1929-04-27 | 1930-04-28 |
Country Status (3)
Country | Link |
---|---|
US (1) | US1966188A (en) |
FR (1) | FR694200A (en) |
GB (1) | GB347007A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3164700A (en) * | 1959-04-13 | 1965-01-05 | Ite Circuit Breaker Ltd | Current limiting circuit breaker with improved auxiliary toggle mechanism |
US3183331A (en) * | 1961-03-27 | 1965-05-11 | Gen Electric | Automatic reclosing circuit breaker |
US3183330A (en) * | 1961-03-21 | 1965-05-11 | Gen Electric | Current-limiting electric circuit interrupter of the fluid blast type |
US3192344A (en) * | 1961-08-28 | 1965-06-29 | Fed Pacific Electric Co | High interrupting capacity circuit breakers with electrodynamic latch release |
US3270167A (en) * | 1963-01-09 | 1966-08-30 | G V Controls Inc | Thermal relay with improved heater arrangement |
US3515829A (en) * | 1965-05-21 | 1970-06-02 | Gen Electric | Current-limiting circuit breaker with novel arc initiating and extinguishing means |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE762984C (en) * | 1941-01-07 | 1953-06-22 | Aeg | Multipole overcurrent protection |
CH673175A5 (en) * | 1987-07-22 | 1990-02-15 | Bbc Brown Boveri & Cie |
-
1929
- 1929-04-27 US US358604A patent/US1966188A/en not_active Expired - Lifetime
-
1930
- 1930-04-18 FR FR694200D patent/FR694200A/en not_active Expired
- 1930-04-28 GB GB13019/30A patent/GB347007A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3164700A (en) * | 1959-04-13 | 1965-01-05 | Ite Circuit Breaker Ltd | Current limiting circuit breaker with improved auxiliary toggle mechanism |
US3183330A (en) * | 1961-03-21 | 1965-05-11 | Gen Electric | Current-limiting electric circuit interrupter of the fluid blast type |
US3183331A (en) * | 1961-03-27 | 1965-05-11 | Gen Electric | Automatic reclosing circuit breaker |
US3192344A (en) * | 1961-08-28 | 1965-06-29 | Fed Pacific Electric Co | High interrupting capacity circuit breakers with electrodynamic latch release |
US3270167A (en) * | 1963-01-09 | 1966-08-30 | G V Controls Inc | Thermal relay with improved heater arrangement |
US3515829A (en) * | 1965-05-21 | 1970-06-02 | Gen Electric | Current-limiting circuit breaker with novel arc initiating and extinguishing means |
Also Published As
Publication number | Publication date |
---|---|
FR694200A (en) | 1930-12-01 |
US1966188A (en) | 1934-07-10 |
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