GB583658A - Thermal electric switches having indicating devices - Google Patents
Thermal electric switches having indicating devicesInfo
- Publication number
- GB583658A GB583658A GB2243544A GB2243544A GB583658A GB 583658 A GB583658 A GB 583658A GB 2243544 A GB2243544 A GB 2243544A GB 2243544 A GB2243544 A GB 2243544A GB 583658 A GB583658 A GB 583658A
- Authority
- GB
- United Kingdom
- Prior art keywords
- terminals
- indicating devices
- electric switches
- thermal electric
- disc
- 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
- H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
- H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
- H01H77/04—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrothermal opening
Landscapes
- Audible And Visible Signals (AREA)
- Resistance Heating (AREA)
- Control Of Resistance Heating (AREA)
Abstract
583,658. Thermal switches; indicators. FAIRWEATHER, W: C. (Singer Manufacturing Co.). Nov. 14, 1944, No. 22435. [Class 38 (v)] A thermal motor-protective switch comprises a base 12 having terminals 15, 17 normally bridged by a snap-acting bimetallic disc 18. A translucent resetting push-button 22 houses a glow lamp 26, the electrodes 27 of which are connected to conductors 29 which have circumferential parts 30 sliding on resistors 31 connected to the terminals 15, 17, whereby the lamp lights when the switch is opened. A resistance wire 38 connected between terminals 15, 16 heats the disc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2243544A GB583658A (en) | 1944-11-14 | 1944-11-14 | Thermal electric switches having indicating devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2243544A GB583658A (en) | 1944-11-14 | 1944-11-14 | Thermal electric switches having indicating devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB583658A true GB583658A (en) | 1946-12-23 |
Family
ID=10179321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2243544A Expired GB583658A (en) | 1944-11-14 | 1944-11-14 | Thermal electric switches having indicating devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB583658A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3213240A (en) * | 1962-01-22 | 1965-10-19 | Texas Instruments Inc | Damper means for use with snap acting element |
-
1944
- 1944-11-14 GB GB2243544A patent/GB583658A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3213240A (en) * | 1962-01-22 | 1965-10-19 | Texas Instruments Inc | Damper means for use with snap acting element |
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