GB402373A - Improvements in and relating to thermostatic switches - Google Patents
Improvements in and relating to thermostatic switchesInfo
- Publication number
- GB402373A GB402373A GB22184/33A GB2218433A GB402373A GB 402373 A GB402373 A GB 402373A GB 22184/33 A GB22184/33 A GB 22184/33A GB 2218433 A GB2218433 A GB 2218433A GB 402373 A GB402373 A GB 402373A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- contact arm
- aug
- base
- hooked
- 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
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/60—Means for producing snap action
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
402,373. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Getchell, B. E. ; Plainville, Connecticut, U.S.A.) Aug. 8, 1933, No. 22184. Convention date, Aug. 6, 1932. [Class 38 (v).] A thermal switch comprises a bimetallic strip 8 fixed by screws 9 to a base 7 and provided with an adjusting screw 10. A contact arm 12 has a hooked end 13 which has pivoted engagement with a slot in the strip 8. A compression spring 16 encircles the contact arm and is mounted between the end of the strip 8 and a shoulder on the contact arm. When the strip 8 bends due to a change of temperature, the contact arm snaps rapidly to engage one or other of the stops 18, 19 either or both of which may be contacts. A hooked plate 11 limits the movement of the strip 8. In a modification the strip is bowed at its upper end and passes through a hole in the base and is fastened on the rear side.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US627705A US1928484A (en) | 1932-08-06 | 1932-08-06 | Thermostatic electric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB402373A true GB402373A (en) | 1933-11-30 |
Family
ID=24515776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22184/33A Expired GB402373A (en) | 1932-08-06 | 1933-08-08 | Improvements in and relating to thermostatic switches |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1928484A (en) |
| GB (1) | GB402373A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2673269A (en) * | 1950-05-29 | 1954-03-23 | Oakes Mfg Company | Thermostatic switch |
| US2758176A (en) * | 1953-06-12 | 1956-08-07 | Gen Motors Corp | Electrical apparatus |
-
1932
- 1932-08-06 US US627705A patent/US1928484A/en not_active Expired - Lifetime
-
1933
- 1933-08-08 GB GB22184/33A patent/GB402373A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1928484A (en) | 1933-09-26 |
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