GB377212A - Improvements in and relating to electric switch operating mechanism - Google Patents
Improvements in and relating to electric switch operating mechanismInfo
- Publication number
- GB377212A GB377212A GB11696/31A GB1169631A GB377212A GB 377212 A GB377212 A GB 377212A GB 11696/31 A GB11696/31 A GB 11696/31A GB 1169631 A GB1169631 A GB 1169631A GB 377212 A GB377212 A GB 377212A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- spring
- rod
- circuit
- catch
- 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
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
- H01H3/262—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor using a centrifugal mechanism
Landscapes
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
377,212. Automatic circuit-breakers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Thumim, C.; P.O. Box 5312, Philadelphia, U.S.A.) April 20, 1931, No. 11696. Convention date, April 18, 1930. [Class 38 (v).] The operating rod 1 and opening spring 7 of a circuit-breaker are connected to separate levers 11, 12 so that during the closing movement, the rod 1 descends further than the top of the spring and in the closed position the end of the rod abuts the end of the compressed spring. To close the circuit-breaker, a pair of motors 2, 3 drive centrifugal devices and so turn the lever 4 clockwise, this motion is imparted through links 13, 14, 15, the intermediate pivots of which are constrained to move in defined paths by links 19, 21, to the lever 12, and by means of a roller 16, on the common pivot of link 15 and lever 12, to the lever 4. In the closed position the right-hand end of a catch 28 drops on the left side of a pin 29 on the lever 4 and so retains the circuit-breaker closed. In any position of the apparatus, tripping is effected by turning a catch 25 clockwise so as to clear a roller 24 on the end of a lever 23, which thereupon turns counterclockwise and moves a lever 20 similarly. This causes upward movement of the link 21 with consequent buckling of the toggle formed by links 13, 14. Both the spring 7 and rod 1 are released and the spring acts upon the lower end of the rod 1 driving the initial part of its motion and is then arrested by a buffer spring 40. As the toggle 13, 14 buckles, its common pivot pin engages an arm of the catch 28 so as to turn it counterclockwise and free it from the pin 29, whereupon a resetting spring 32 returns the apparatus to the initial position ready for a reclosure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US445479A US1841162A (en) | 1930-04-18 | 1930-04-18 | Switch operating mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
GB377212A true GB377212A (en) | 1932-07-20 |
Family
ID=23769068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11696/31A Expired GB377212A (en) | 1930-04-18 | 1931-04-20 | Improvements in and relating to electric switch operating mechanism |
Country Status (3)
Country | Link |
---|---|
US (1) | US1841162A (en) |
DE (1) | DE594227C (en) |
GB (1) | GB377212A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2458240A (en) * | 1944-12-09 | 1949-01-04 | Gen Electric | Operating mechanism for electric circuit breakers |
US2503669A (en) * | 1946-11-14 | 1950-04-11 | Hauerslev Walther | Electrical push-button device |
DE102012215207A1 (en) * | 2012-08-28 | 2014-03-06 | Siemens Ag | Trip device for switch unit i.e. power switch, has pawl portion for fixing transmission lever at backup portion, and rotating element rotatably supporting backup portion and pawl portion with respect to each other |
-
1930
- 1930-04-18 US US445479A patent/US1841162A/en not_active Expired - Lifetime
-
1931
- 1931-04-19 DE DEA61625D patent/DE594227C/en not_active Expired
- 1931-04-20 GB GB11696/31A patent/GB377212A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1841162A (en) | 1932-01-12 |
DE594227C (en) | 1934-03-14 |
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