GB521236A - Thermostatic control device - Google Patents
Thermostatic control deviceInfo
- Publication number
- GB521236A GB521236A GB3365/40A GB336540A GB521236A GB 521236 A GB521236 A GB 521236A GB 3365/40 A GB3365/40 A GB 3365/40A GB 336540 A GB336540 A GB 336540A GB 521236 A GB521236 A GB 521236A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- button
- temperature
- feb
- insufficient
- 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
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H2037/5463—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting the bimetallic snap element forming part of switched circuit
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Abstract
521,236. Thermal switches. METALS & CONTROLS CORPORATION. Aug. 9, 1938, No. 3365/40. Convention date, Feb. 7, 1938. Divided out of 519,976 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 10, 1939. [Class 38 (v)] In a thermostatic control device, increase of temperature, e.g., from a heating wire 16, causes a bimetallic disc or like member 9 to snap downwards into its other position; normal fall of temperature is insufficient to cause the disc to return and resetting is effected by pressure on a push button 47 against the action of a spring 45. The button 47 carries a plate 43 shaped as in Fig. 9 and having projections 48 which bear on the bimetallic disc. The movement of the button is however insufficient to hold the disc in its upper position should a rise of temperature again occur. The bimetallic disc carries two contacts 12, 13 adapted to engage fixed contacts 36. The switch may protect a motor against overload, Figs. 12-14 not shown. Specification 178,103, [Class 38 (v)], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US158107A US2199387A (en) | 1937-08-09 | 1937-08-09 | Thermostatic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB521236A true GB521236A (en) | 1940-05-15 |
Family
ID=22566711
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3365/40A Expired GB521236A (en) | 1937-08-09 | 1938-08-09 | Thermostatic control device |
| GB23500/38A Expired GB519976A (en) | 1937-08-09 | 1938-08-09 | Thermostatically controlled electric switch |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23500/38A Expired GB519976A (en) | 1937-08-09 | 1938-08-09 | Thermostatically controlled electric switch |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2199387A (en) |
| FR (1) | FR841826A (en) |
| GB (2) | GB521236A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3103564A (en) * | 1963-09-10 | Solenoid switch operating mechanism | ||
| US2471924A (en) * | 1943-07-10 | 1949-05-31 | Metals & Controls Corp | Thermal relay |
| US2481722A (en) * | 1945-10-30 | 1949-09-13 | Thomas & Betts Corp | Secondary thermal breaker |
| US2489293A (en) * | 1946-07-16 | 1949-11-29 | Fires Corp | Fire detecting cable |
| US2543040A (en) * | 1946-09-24 | 1951-02-27 | Charles S Mertler | Snap-action thermostatic switch |
| US2636098A (en) * | 1950-05-01 | 1953-04-21 | Pierce John B Foundation | Thermostatic switch |
| US3197594A (en) * | 1962-12-28 | 1965-07-27 | Therm O Disc Inc | Thermo-sensitive switch plug |
-
1937
- 1937-08-09 US US158107A patent/US2199387A/en not_active Expired - Lifetime
-
1938
- 1938-08-08 FR FR841826D patent/FR841826A/en not_active Expired
- 1938-08-09 GB GB3365/40A patent/GB521236A/en not_active Expired
- 1938-08-09 GB GB23500/38A patent/GB519976A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB519976A (en) | 1940-04-11 |
| FR841826A (en) | 1939-05-31 |
| US2199387A (en) | 1940-05-07 |
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