GB757422A - Improvements in or relating to speed-responsive electric switches - Google Patents
Improvements in or relating to speed-responsive electric switchesInfo
- Publication number
- GB757422A GB757422A GB898554A GB898554A GB757422A GB 757422 A GB757422 A GB 757422A GB 898554 A GB898554 A GB 898554A GB 898554 A GB898554 A GB 898554A GB 757422 A GB757422 A GB 757422A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- shaft
- disc
- speed
- casing
- 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
- H01H35/00—Switches operated by change of a physical condition
- H01H35/06—Switches operated by change of speed
- H01H35/10—Centrifugal switches
Landscapes
- Adjustable Resistors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
757,422. Centrifugal switches; magnetic switches. SMITH & SONS (ENGLAND), Ltd., S. April 1, 1955 [March 26, 1954], No. 8985/54. Class 38(5) In a speed-responsive switch a ferromagnetic body 9.is pivotably mounted at 8 on a rotating shaft 3 so that when stationary one end of the body comes under the influence of a permanent magnet 11 carried by the shaft and an adjustable contact 14 at the other end engages a co-operating contact 18. As the speed increases centrifugal forces overcome the magnetic attraction and the body is displaced to the position shown by the broken lines thereby opening the contacts. This displacement is limited by the adjustable stop 12. The body carries a secondary contact 15 which co-operates with a contact 19 connected to the contact 18 by a spring blade. The contact 18 is mounted on an insulating block 17 fixed to the shaft and current is introduced via a connection 20, a spring-urged brush 21 engaging a conducting disc 22 mounted on an insulated disc 23 in the casing, and a conductor 24 connected to the disc 22..The return is to earth through the shaft and bearing to the casing. The switch is particularly intended for use in motor vehicles.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898554A GB757422A (en) | 1954-03-26 | 1954-03-26 | Improvements in or relating to speed-responsive electric switches |
FR1122772D FR1122772A (en) | 1954-03-26 | 1955-04-18 | Speed sensitive electric switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898554A GB757422A (en) | 1954-03-26 | 1954-03-26 | Improvements in or relating to speed-responsive electric switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB757422A true GB757422A (en) | 1956-09-19 |
Family
ID=9863130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB898554A Expired GB757422A (en) | 1954-03-26 | 1954-03-26 | Improvements in or relating to speed-responsive electric switches |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1122772A (en) |
GB (1) | GB757422A (en) |
-
1954
- 1954-03-26 GB GB898554A patent/GB757422A/en not_active Expired
-
1955
- 1955-04-18 FR FR1122772D patent/FR1122772A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1122772A (en) | 1956-09-12 |
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