GB788645A - Improvements in or relating to temperature responsive devices - Google Patents
Improvements in or relating to temperature responsive devicesInfo
- Publication number
- GB788645A GB788645A GB13562/56A GB1356256A GB788645A GB 788645 A GB788645 A GB 788645A GB 13562/56 A GB13562/56 A GB 13562/56A GB 1356256 A GB1356256 A GB 1356256A GB 788645 A GB788645 A GB 788645A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bulb
- temperature
- fluid
- chamber
- expansion
- 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
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/20—Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature
- G01K1/24—Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature by means of compounded strips or plates, e.g. by bimetallic strips
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Thermal Insulation (AREA)
Abstract
788,645. Temperature-responsive actuating-elements. ROBERTSHAW-FULTON CONTROLS CO. May 2, 1956 [Aug. 5, 1955], No. 13562/56. Class 64(2) A temperature-responsive apparatus comprises an expansible and contractible member 10 having a part 18 arranged for movement upon expansion or contraction of the member, a temperature sensitive bulb 14, and a tube 12 connecting the bulb and the member in a closed system filled with fluid, the bulb having at least one portion formed of materials having different co-efficients of thermal expansion so that its volume is unaffected when all of its wall has undergone a temperature change. The bulb may be formed from a sheet of bimetallic material with the high expansion side forming the exterior surface and have a recess 26 filled with a flexible insulating substance 32. Upon an increase in temperature, the chamber 23 within the bulb contracts due to flexing of the legs 30, 30 of the uninsulated portion so that fluid is injected into the member 10 to provide an instant response in anticipattion of the fluid expansion, the legs 30, 30 being restored to their original positions after the increased temperature has reached and expanded the portion 26. A fall in temperature produces a temporary increase in the volume of the chamber 23. The substance 32 may be removed to provide a chamber of constant volume for all temperatures. The element 10 may consist of a pair of corrugated discs connected to a support by a threaded stud 16 and arranged to operate a valve or switch. The bulb 14 is welded or soldered to the tube 12 and has an end 22 which is flattened or crimped after the system has been charged with fluid under pressure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US788645XA | 1955-08-05 | 1955-08-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB788645A true GB788645A (en) | 1958-01-02 |
Family
ID=22146657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13562/56A Expired GB788645A (en) | 1955-08-05 | 1956-05-02 | Improvements in or relating to temperature responsive devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB788645A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4538458A (en) * | 1983-08-26 | 1985-09-03 | Rockwell International Corporation | Temperature compensated gas meters |
CN115787859A (en) * | 2022-12-13 | 2023-03-14 | 安徽建筑大学 | Photoresponse drive structure and have building energy-conservation carbon reduction device of this structure |
-
1956
- 1956-05-02 GB GB13562/56A patent/GB788645A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4538458A (en) * | 1983-08-26 | 1985-09-03 | Rockwell International Corporation | Temperature compensated gas meters |
CN115787859A (en) * | 2022-12-13 | 2023-03-14 | 安徽建筑大学 | Photoresponse drive structure and have building energy-conservation carbon reduction device of this structure |
CN115787859B (en) * | 2022-12-13 | 2024-03-22 | 安徽建筑大学 | Light response driving structure and building energy-saving carbon reduction device with same |
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