GB399096A - Improvements in and relating to electric switches or circuit-breakers - Google Patents
Improvements in and relating to electric switches or circuit-breakersInfo
- Publication number
- GB399096A GB399096A GB5807/33A GB580733A GB399096A GB 399096 A GB399096 A GB 399096A GB 5807/33 A GB5807/33 A GB 5807/33A GB 580733 A GB580733 A GB 580733A GB 399096 A GB399096 A GB 399096A
- Authority
- GB
- United Kingdom
- Prior art keywords
- latch
- pivoted
- roller
- handle
- breaker
- 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
- 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
- H01H71/62—Manual reset mechanisms which may be also used for manual release with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement
-
- 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
- H01H71/1072—Release mechanisms which are reset by opening movement of contacts
Abstract
399,096. Automatic circuit-breakers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Casby, J. J. ; 559, Smithson Avenue, Lawrence Park, Erie, U.S.A.) Feb. 25, 1933, No. 5807. Convention date, Feb. 25, 1932. [Class 38 (v).] Magnetic blowouts:-A loosehandle circuitbreaker comprises an operating member 12 and contactcarrying member 13, which are independently pivoted at 15 and coupled together for closing and maintaining closed the breaker by a latch 14 pivoted to 13 at 16 and engaging under spring action 17 a roller 18 on the member 12. An opening spring 19 is placed between an abutment 22 for the member 12 and the movable contact 7, which is pivoted at 16 to the member 13. A roller 26 on the member 13 is engageable in the closed position by a holding latch 24, which is pivoted at 25 and carries an extension 29 which supports a tripping member 28, also pivoted at 26. The member 28 co-operates with the armature 11 of a series combined trip and blow-out magnet 8, and is arranged on overload to release both latches 24, 14 by means of, respectively, the extension 29 and a roller 30. Fig. 3 diagrammatically shows the closed position of the parts, in which the handle 12 is held against abutment 23. When the latches 24, 14 are deflected, the parts 12, 13 are uncoupled and the part 13 rotates clockwise, the contact 7 .wiping over the contact 6 until arrested by the part 13. Rotation of the latter causes the handle 12 to move clockwise by means of spring 21 and reset the latch 14, ready for reclosure, the latter being effected by counterclockwise rotation of handle 12 until the latch 24 re-engages the roller 26. If the contacts reclose on to an overload,. the parts are uncoupled at 14, 18, before the latch 24 is engaged, so that it is impossible to hold the breaker closed. The handle can also be rotated backwards to open the breaker by first disengaging 18 from 14 and then deflecting latch 24 to free the contacts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US595006A US1950162A (en) | 1932-02-25 | 1932-02-25 | Electric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB399096A true GB399096A (en) | 1933-09-28 |
Family
ID=24381312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5807/33A Expired GB399096A (en) | 1932-02-25 | 1933-02-25 | Improvements in and relating to electric switches or circuit-breakers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1950162A (en) |
| GB (1) | GB399096A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR957213A (en) * | 1946-12-13 | 1950-02-17 | ||
| US2695345A (en) * | 1950-04-19 | 1954-11-23 | Ite Circuit Breaker Ltd | Blow open, blow closed circuit breaker |
-
1932
- 1932-02-25 US US595006A patent/US1950162A/en not_active Expired - Lifetime
-
1933
- 1933-02-25 GB GB5807/33A patent/GB399096A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1950162A (en) | 1934-03-06 |
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