GB196147A - Improvements in and relating to thermostatic electric circuit controllers - Google Patents
Improvements in and relating to thermostatic electric circuit controllersInfo
- Publication number
- GB196147A GB196147A GB592522A GB592522A GB196147A GB 196147 A GB196147 A GB 196147A GB 592522 A GB592522 A GB 592522A GB 592522 A GB592522 A GB 592522A GB 196147 A GB196147 A GB 196147A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- strip
- contacts
- winding
- current
- 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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
- H01H71/162—Electrothermal mechanisms with bimetal element with compensation for ambient temperature
Landscapes
- Thermally Actuated Switches (AREA)
- Motor And Converter Starters (AREA)
- Protection Of Generators And Motors (AREA)
Abstract
196,147. British Thomson - Houston Co., Ltd., (General Electric Co.). Feb. 28, 1922. Thermal switches &c.-A thermal circuit controller comprises two thermostatic strips 10, 11 connected in series through the contacts 13, 14, one strip 11 taking the forming of a grid or the like so as to offer considerable resistance to the current, and both strips being made of similar material so as to move in unison under changes of room temperature. If the current becomes excessive the strip 11 becomes heated, and bends away from the strip 10 so that the contacts 13, 14 separate. The Figure shows the controller inserted in the circuit to a motor 17 which has a starting winding 18 and a running winding 19, the winding 19 being automatically cut out of circuit by a centrifugal switch 25 when the motor attains a certain speed. Should the current become excessive contacts 13, 14 separate and a resistance 20 is inserted into the circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US472775A US1492844A (en) | 1921-05-26 | 1921-05-26 | Thermostatic circuit controller |
| GB592522A GB196147A (en) | 1922-02-28 | 1922-02-28 | Improvements in and relating to thermostatic electric circuit controllers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB592522A GB196147A (en) | 1922-02-28 | 1922-02-28 | Improvements in and relating to thermostatic electric circuit controllers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB196147A true GB196147A (en) | 1923-04-19 |
Family
ID=9805202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB592522A Expired GB196147A (en) | 1921-05-26 | 1922-02-28 | Improvements in and relating to thermostatic electric circuit controllers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB196147A (en) |
-
1922
- 1922-02-28 GB GB592522A patent/GB196147A/en not_active Expired
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