GB670624A - Improvements in or relating to thermostatic control devices - Google Patents
Improvements in or relating to thermostatic control devicesInfo
- Publication number
- GB670624A GB670624A GB2461548A GB2461548A GB670624A GB 670624 A GB670624 A GB 670624A GB 2461548 A GB2461548 A GB 2461548A GB 2461548 A GB2461548 A GB 2461548A GB 670624 A GB670624 A GB 670624A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bimetal
- housing
- heater
- cut
- temperature
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/275—Control of temperature characterised by the use of electric means with sensing element expanding, contracting, or fusing in response to changes of temperature
- G05D23/27535—Details of the sensing element
- G05D23/2754—Details of the sensing element using bimetallic element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/12—Means for adjustment of "on" or "off" operating temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Apparatus For Making Beverages (AREA)
- Control Of Temperature (AREA)
Abstract
670,624. Thermal switches. MERLIN MOULDINGS, Ltd., and REEVES, C. E. Oct. 6, 1949. [Sept. 20, 1948] No. 24615/48. Class 38 (v). [Also in Groups XIII and XXXV] In a thermal control for a heating element 25, the space between a heat-sensitive cut-out element, such as a bellows or a bimetal strip 11, and its housing 12, e.g. a metal cylinder, which is sealed at one or both ends and is to be placed. in the medium to be heated, is evacuated or filled with a fluid or comminuted solid of less heat conductivity than the medium to be heated to delay the initial action of the cut-out. Furthermore, a screw 26 for adjusting the thermal element is disposed in a plug pin 19. A pilot heater. 30 is connected directly to plug pins 18, 19 while the heater 25 is connected between the pins by way of a supporting arm 20, the bimetal strip 11, contacts 21, a spring leaf 23 (insulated from the arm 20) and a tail 29. The screw 26 varies the pressure between the contacts 21. In use in a coffee percolator, the heaters raise the water temperature to 100‹C., which is maintained for ten minutes because of thedelaying action of the housing 12 and its contents, until the bimetal 11 attains its "breaking" temperature of 95‹C. Then the main heater 25 is. cut out until the bimetal falls to 94‹C. and the circuit is restored. The housing and its contents now being ineffective as a delaying device, the coffee temperature is held at 94‹ to 95‹C. which are the "make" and "break" temperatures of the bimetal 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2461548A GB670624A (en) | 1948-09-20 | 1948-09-20 | Improvements in or relating to thermostatic control devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2461548A GB670624A (en) | 1948-09-20 | 1948-09-20 | Improvements in or relating to thermostatic control devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB670624A true GB670624A (en) | 1952-04-23 |
Family
ID=10214461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2461548A Expired GB670624A (en) | 1948-09-20 | 1948-09-20 | Improvements in or relating to thermostatic control devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB670624A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2894652A1 (en) * | 2005-12-14 | 2007-06-15 | Applic Thermiques Europ Soc D | Thermostatic regulation system for electric water heater, has fuse mounted in series with bimetallic thermostat and connected to rigid wire of power supply, where thermostat has output connected to rigid power supply lead of resistance |
| CN102005331A (en) * | 2010-11-10 | 2011-04-06 | 中国电子科技集团公司第十四研究所 | Thermal insulation relay with dual operating points |
-
1948
- 1948-09-20 GB GB2461548A patent/GB670624A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2894652A1 (en) * | 2005-12-14 | 2007-06-15 | Applic Thermiques Europ Soc D | Thermostatic regulation system for electric water heater, has fuse mounted in series with bimetallic thermostat and connected to rigid wire of power supply, where thermostat has output connected to rigid power supply lead of resistance |
| EP1798625A1 (en) * | 2005-12-14 | 2007-06-20 | S.A.T.E. | Thermostatic control system for electric water heater |
| CN102005331A (en) * | 2010-11-10 | 2011-04-06 | 中国电子科技集团公司第十四研究所 | Thermal insulation relay with dual operating points |
| CN102005331B (en) * | 2010-11-10 | 2012-07-25 | 中国电子科技集团公司第十四研究所 | Thermal insulation relay with dual operating points |
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