GB690294A - Improvements in temperature controllers - Google Patents
Improvements in temperature controllersInfo
- Publication number
- GB690294A GB690294A GB23710/50A GB2371050A GB690294A GB 690294 A GB690294 A GB 690294A GB 23710/50 A GB23710/50 A GB 23710/50A GB 2371050 A GB2371050 A GB 2371050A GB 690294 A GB690294 A GB 690294A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heater
- thermostat
- energized
- coil
- source
- 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
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
Abstract
690,294. Automatic temperature control systems. BRITISH INDUSTRIAL PLASTICS, Ltd. Feb. 27, 1951 [Sept. 27, 1950], No. 23710/60. Class 38 (iv). A bimetallic strip thermostat controlling an electric heater has its differential reduced by a biasing auxiliary heater intermittently energized at a constant frequency. An electric heater coil HE is connected to a high frequency A.C. source by a mercury switch MR controlled by the bimetallic thermostat TC which detects the temperature of an unspecified object being heated by coil HE. The thermostat is also influenced by an auxiliary heater HW<SP>1</SP> which cannot by itself open the contacts of the thermostat. The heater is intermittently energized by pulses of a substantially constant frequency controlled by a temperature compensated interrupter ER, comprising a heater HW<SP>2</SP> and a bimetallic strip arranged to cycle continuously. It is stated that the heater HE may alternatively be energized from a D.C. source.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB23710/50A GB690294A (en) | 1950-09-27 | 1950-09-27 | Improvements in temperature controllers |
| DE1951891933D DE891933C (en) | 1950-09-27 | 1951-09-26 | Temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB23710/50A GB690294A (en) | 1950-09-27 | 1950-09-27 | Improvements in temperature controllers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB690294A true GB690294A (en) | 1953-04-15 |
Family
ID=10200045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23710/50A Expired GB690294A (en) | 1950-09-27 | 1950-09-27 | Improvements in temperature controllers |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE891933C (en) |
| GB (1) | GB690294A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1106534B (en) * | 1955-08-02 | 1961-05-10 | Birka Regulator G M B H | Two-point temperature controller |
-
1950
- 1950-09-27 GB GB23710/50A patent/GB690294A/en not_active Expired
-
1951
- 1951-09-26 DE DE1951891933D patent/DE891933C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE891933C (en) | 1953-10-01 |
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