GB195942A - Improvements in electric thermostatic time switches - Google Patents
Improvements in electric thermostatic time switchesInfo
- Publication number
- GB195942A GB195942A GB5586/23A GB558623A GB195942A GB 195942 A GB195942 A GB 195942A GB 5586/23 A GB5586/23 A GB 5586/23A GB 558623 A GB558623 A GB 558623A GB 195942 A GB195942 A GB 195942A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- lamp
- push button
- spring
- contact
- 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
- H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
- H01H43/30—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action
- H01H43/301—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material
- H01H43/302—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material of solid bodies
- H01H43/304—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material of solid bodies of two bodies expanding or contracting in a different manner, e.g. bimetallic elements
Landscapes
- Control Of Temperature (AREA)
- Thermally Actuated Switches (AREA)
Abstract
195,942. Aktiebolaget Birka Regulator. April 10, 1922, [Convention date]. Thermal switches.-In short-time thermal switches for electric light installations, the thermal switch is contained in an evacuated receptacle. The Figure shows one arrangement. On depressing the push button 10 current flows up the thermostatic strip 3, down a contact spring 11, round the heating coil 4 and thence to the lamp 2. The thermostatic strip 3 bends, the spring 11 following it, and makes contact with the springs 6. After further bending contact is' broken at 11, and if the push button 10 is now released, current will flow to the lamp 2 without passing through the heating coil 4. The lamp will remain lit till the strip 3, in cooling, has bent back so as to break contact with the spring 6. A switch 14 of the ordinary turn type may be connected in the circuit as shown for lighting the lamp 2 permanently. The push button switch, the thermostat switch and the turn type switch may be enclosed in a common casing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE105340X | 1922-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB195942A true GB195942A (en) | 1923-10-11 |
Family
ID=20292474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5586/23A Expired GB195942A (en) | 1922-04-10 | 1923-02-26 | Improvements in electric thermostatic time switches |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH105340A (en) |
| DE (1) | DE397007C (en) |
| FR (1) | FR562495A (en) |
| GB (1) | GB195942A (en) |
| NL (1) | NL13336C (en) |
-
0
- NL NL13336D patent/NL13336C/xx active
-
1923
- 1923-02-15 DE DEA39474D patent/DE397007C/en not_active Expired
- 1923-02-20 FR FR562495D patent/FR562495A/en not_active Expired
- 1923-02-26 GB GB5586/23A patent/GB195942A/en not_active Expired
- 1923-03-12 CH CH105340D patent/CH105340A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR562495A (en) | 1923-11-12 |
| CH105340A (en) | 1924-06-16 |
| NL13336C (en) | |
| DE397007C (en) | 1924-06-12 |
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