GB272336A - Improvements in thermally operated electric switches - Google Patents
Improvements in thermally operated electric switchesInfo
- Publication number
- GB272336A GB272336A GB1408626A GB1408626A GB272336A GB 272336 A GB272336 A GB 272336A GB 1408626 A GB1408626 A GB 1408626A GB 1408626 A GB1408626 A GB 1408626A GB 272336 A GB272336 A GB 272336A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mercury switch
- wheel
- mercury
- nose
- temperature
- 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
- H01H37/56—Thermally-sensitive members actuated due to deflection of bimetallic element having spirally wound or helically wound bimetallic element
Abstract
272,336. Marks, E. C. R., (Williams Oil- OMatic Heating Corporation). June(3, 1926. Thermal switches; mercury switches.-A temperature - control device, particularly suitable for use in liquid fuel burning systems, comprises a coiled bimetallic strip 7 adapted to be inserted e.g. in a stack leading from the furnace, and adapted upon variation of temperature to rotate a toothed wheel 9 in one ,direction or the other and thereby move a tiltable mercury switch 11 on or off. Weights such as 16, 17, assisted if necessary by springs 19, 20 restore the mercury switch to a horizontal position and the arrangement is such that when .once the mercury switch has reached an extreme position such as that shown in Fig. 3, further rotation of the wheel 9 produces no effect, the teeth of the wheel slipping past the nose 15 of the mercury switch carrier, but when the bimetallic strip 7 moves in the reverse direction, the nose 15 is at once positively engaged and the mercury switch immediately thrown over into its other position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1408626A GB272336A (en) | 1926-06-03 | 1926-06-03 | Improvements in thermally operated electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1408626A GB272336A (en) | 1926-06-03 | 1926-06-03 | Improvements in thermally operated electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB272336A true GB272336A (en) | 1927-06-16 |
Family
ID=10034723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1408626A Expired GB272336A (en) | 1926-06-03 | 1926-06-03 | Improvements in thermally operated electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB272336A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2755362A (en) * | 1953-09-10 | 1956-07-17 | Gen Motors Corp | Refrigerating apparatus |
-
1926
- 1926-06-03 GB GB1408626A patent/GB272336A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2755362A (en) * | 1953-09-10 | 1956-07-17 | Gen Motors Corp | Refrigerating apparatus |
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