GB389141A - Improvements in and relating to electric thermal relays - Google Patents
Improvements in and relating to electric thermal relaysInfo
- Publication number
- GB389141A GB389141A GB25551/31A GB2555131A GB389141A GB 389141 A GB389141 A GB 389141A GB 25551/31 A GB25551/31 A GB 25551/31A GB 2555131 A GB2555131 A GB 2555131A GB 389141 A GB389141 A GB 389141A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wire
- contact
- switch
- sept
- heat
- 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
- H01H37/46—Thermally-sensitive members actuated due to expansion or contraction of a solid
- H01H37/50—Thermally-sensitive members actuated due to expansion or contraction of a solid with extensible wires under tension
-
- 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
- H01H2037/326—Thermally-sensitive members with radiative heat transfer to the switch, e.g. special absorption surfaces
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Abstract
389,141. Thermal switches. AKTIEBOLAGET BIRKA REGULATOR, 48, Surbrunnsgatan, Stockholm. Sept. 11, 1931, No. 25551. Convention date, Sept. 16, 1930. [Class 38 (v).] The heat-sensitive element of a thermal switch consists of a thin wire 13 attached at one end 12 to an insulating base 2 and at the other end to a pin 10 on a contact-lever 5 having a contact 3 co-operating with a spring mounted contact 4 carried by the base... The wire 13 is heated by radiation from a heating element 15 mounted on a capillary tube 14 surrounding the wire, and on an increase in temperature the switch opens under the actionof a spring 17. To assist the transference of heat from the heater to the wire, the switch is mounted in a sealed container which may be evacuated or contain an inert gas such as hydrogen, and the wire is blackened or oxidized.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE389141X | 1930-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB389141A true GB389141A (en) | 1933-03-13 |
Family
ID=20309284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25551/31A Expired GB389141A (en) | 1930-09-16 | 1931-09-11 | Improvements in and relating to electric thermal relays |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR722877A (en) |
GB (1) | GB389141A (en) |
-
1931
- 1931-09-11 GB GB25551/31A patent/GB389141A/en not_active Expired
- 1931-09-14 FR FR722877D patent/FR722877A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR722877A (en) | 1932-03-29 |
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