GB578611A - An improved thermally operated electric switching device - Google Patents
An improved thermally operated electric switching deviceInfo
- Publication number
- GB578611A GB578611A GB21238/43A GB2123843A GB578611A GB 578611 A GB578611 A GB 578611A GB 21238/43 A GB21238/43 A GB 21238/43A GB 2123843 A GB2123843 A GB 2123843A GB 578611 A GB578611 A GB 578611A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- poles
- switching device
- dec
- contacts
- 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
- H01H37/58—Thermally-sensitive members actuated due to thermally controlled change of magnetic permeability
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fuses (AREA)
Abstract
578,611. Magnetic switches. LANDIS & GYR SOC. ANON. Dec. 17, 1943, No. 21238. Convention date, Dec. 21, 1942. [Class 38 (v)] The flux of a permanent magnet 1 is normally shunted through a member 4 adapted to be heated by a coil 5 (or itself to act as a heating conductor) so as to lose its magnetic properties, whereby the armature 6 is attracted to the poles 2, 3 against the action of spring 7 to open the contacts 8. Cooling of the member 4 allows the contacts to reclose, the movement of the armature in both directions being rapid due to the changing reluctance as it moves towards or from the poles. The Specification as open to inspection under Section 91 states also that the thermal member when acting as its own heater may be rotatable between the poles or mounted on one of them, and the armature may comprise the thermallysensitive member. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH578611X | 1942-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB578611A true GB578611A (en) | 1946-07-04 |
Family
ID=4521357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21238/43A Expired GB578611A (en) | 1942-12-21 | 1943-12-17 | An improved thermally operated electric switching device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB578611A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2781433A (en) * | 1950-12-23 | 1957-02-12 | Heinemann Electric Co | Electro-magnetic circuit breaker |
| US2953723A (en) * | 1957-05-08 | 1960-09-20 | Texas Instruments Inc | Control device |
| US4064581A (en) * | 1976-04-23 | 1977-12-27 | O.K. Machine And Tool Corporation | Wire strip, wrap and unwrap tool |
| DE3641616A1 (en) * | 1986-12-05 | 1988-06-09 | Argo Feinmechanik | Temperature-dependent pressure switch |
| CN111149185A (en) * | 2017-07-28 | 2020-05-12 | 尹楚尔Ip有限责任公司 | improved switch |
-
1943
- 1943-12-17 GB GB21238/43A patent/GB578611A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2781433A (en) * | 1950-12-23 | 1957-02-12 | Heinemann Electric Co | Electro-magnetic circuit breaker |
| US2953723A (en) * | 1957-05-08 | 1960-09-20 | Texas Instruments Inc | Control device |
| US4064581A (en) * | 1976-04-23 | 1977-12-27 | O.K. Machine And Tool Corporation | Wire strip, wrap and unwrap tool |
| DE3641616A1 (en) * | 1986-12-05 | 1988-06-09 | Argo Feinmechanik | Temperature-dependent pressure switch |
| CN111149185A (en) * | 2017-07-28 | 2020-05-12 | 尹楚尔Ip有限责任公司 | improved switch |
| CN111149185B (en) * | 2017-07-28 | 2022-03-25 | 尹楚尔Ip有限责任公司 | improved switch |
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