GB221748A - An improved thermostat for electrically heated apparatus - Google Patents
An improved thermostat for electrically heated apparatusInfo
- Publication number
- GB221748A GB221748A GB757324A GB757324A GB221748A GB 221748 A GB221748 A GB 221748A GB 757324 A GB757324 A GB 757324A GB 757324 A GB757324 A GB 757324A GB 221748 A GB221748 A GB 221748A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- electrically heated
- thermostats
- tappet
- incubator
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
221,748. Johnson, A. March 25, 1924. Thermostats.-Relates to thermostats for electrically heated incubators or like apparatus of the type in which a capsule 4 carries a rod 6 bearing against an adjustable screw 21 mounted in a counterbalnced lever 15 pivoted on the top of the incubator &c., one end of the lever carrying an adjustable weight 18, while the other end actuates the switch controlling the heating circuit. According to the invention, the lever 15 is adjustably secured in a member 14 formed with a conical portion 11 for guiding the rod 6 and is provided at its extreme end with a tappet 17 co-operating with the end of a stepped' flat spring 22 to separate the contacts 25, 26 when the temperature in the incubator exceeding a predetermined maximum. The spring 22 is of nickel silver and has fitted to its free end an arm 28 of insulating material against which the tappet 17 is adapted to bear.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB757324A GB221748A (en) | 1924-03-25 | 1924-03-25 | An improved thermostat for electrically heated apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB757324A GB221748A (en) | 1924-03-25 | 1924-03-25 | An improved thermostat for electrically heated apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB221748A true GB221748A (en) | 1924-09-18 |
Family
ID=9835716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB757324A Expired GB221748A (en) | 1924-03-25 | 1924-03-25 | An improved thermostat for electrically heated apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB221748A (en) |
-
1924
- 1924-03-25 GB GB757324A patent/GB221748A/en not_active Expired
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