GB549381A - Improvements in or relating to circuit breakers for electric systems - Google Patents
Improvements in or relating to circuit breakers for electric systemsInfo
- Publication number
- GB549381A GB549381A GB915241A GB915241A GB549381A GB 549381 A GB549381 A GB 549381A GB 915241 A GB915241 A GB 915241A GB 915241 A GB915241 A GB 915241A GB 549381 A GB549381 A GB 549381A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pin
- breaker
- cam
- manual switch
- whipp
- 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
- 230000000717 retained effect Effects 0.000 abstract 1
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
- H01H9/20—Interlocking, locking, or latching mechanisms
Abstract
549,381. Electromagnetic switches; latching switches. WHIPP & BOURNE, Ltd., and WHIPP, I.T.L. July 19, 1941, No. 9152. [Class 38 (v)] In a circuit-breaker in which a closing and retaining electromagnet 1, under control of a manual switch, is de-energized on fault conditions, repeated closure of the switch on to a faulty circuit, due to the manual switch being retained in the closed position, is prevented by a catch which is moved by impact of the opening breaker movement into position to lock the breaker arm against further closure. Contacts 4 are pivoted at 3b to the frame and at 4b to the crank arms 3 which are pivoted at 3a to the cores 2 and connected by pin 8 to form a toggle. When the breaker is tripped open, the pin 8 engages the radial edge 9 of a cam 10 and rotates it about pivot 11 so that the cam part 13 engages over the pin and locks it when the magnet is again energized. When the manual switch is released and the pressure of pin 8 on part 13 ceases, the cam 10 is restored by spring 12, preferably under control of a time-lag device. The Specification refers also to a rectilinearlymoving catch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB915241A GB549381A (en) | 1941-07-19 | 1941-07-19 | Improvements in or relating to circuit breakers for electric systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB915241A GB549381A (en) | 1941-07-19 | 1941-07-19 | Improvements in or relating to circuit breakers for electric systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB549381A true GB549381A (en) | 1942-11-18 |
Family
ID=9866389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB915241A Expired GB549381A (en) | 1941-07-19 | 1941-07-19 | Improvements in or relating to circuit breakers for electric systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB549381A (en) |
-
1941
- 1941-07-19 GB GB915241A patent/GB549381A/en not_active Expired
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