GB815904A - Improvements in or relating to temperature responsive device - Google Patents
Improvements in or relating to temperature responsive deviceInfo
- Publication number
- GB815904A GB815904A GB24343/55A GB2434355A GB815904A GB 815904 A GB815904 A GB 815904A GB 24343/55 A GB24343/55 A GB 24343/55A GB 2434355 A GB2434355 A GB 2434355A GB 815904 A GB815904 A GB 815904A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- liquid
- tube
- bourdon tube
- vapour
- 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
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/32—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable
-
- 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
- G05D23/27537—Details of the sensing element using expansible fluid
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
815,904. Temperature-responsive actuating - elements. WALTER KIDDE-PACIFIC, [formerly THERMALECTRIC ENGINEERING CO.]. Aug. 24, 1955 [Sept. 2, 1954], No. 24343/55. Class 64(2) [Also in Groups XVII and XXXVII] A temperature-sensing capillary tube 5 and a Bourdon tube 1 are filled (apart from a little irremovable residual gas) with methyl alcohol or monochlorodifluoromethane, 90-99.9 per cent of which is liquid 10 whilst the remainder forms a vapour bubble 6 so that the bubble transfers itself to any hot spot 9 which may occur and the variation in vapour pressure due to temperature change at that spot is transmitted by the liquid 10 to the Bourdon tube. The tube 5 is long and flexible and may be threaded about in contact with critical points of an apparatus, Fig. 6, not shown, so that overheating of any of the points causes the Bourdon tube 1 to shut down the apparatus, e.g. by an electric switch. Communication with the Bourdon tube is through a bore in a fixed block 2 and the tube 5 may be of glass or stainless steel. The system and filling liquid are degassed before the system is filled. For filling, the system is immersed in a liquid bath, Fig. 5, not shown, at a temperature above the operating range of temperature and the air pumped out. The filling liquid is then introduced under a pressure above that of its vapour pressure at the temperature of the liquid bath. The pumping may be repeated and further liquid added. On sealing and cooling, the vapour bubble 6 forms.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US815904XA | 1954-09-02 | 1954-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB815904A true GB815904A (en) | 1959-07-01 |
Family
ID=22165094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24343/55A Expired GB815904A (en) | 1954-09-02 | 1955-08-24 | Improvements in or relating to temperature responsive device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB815904A (en) |
-
1955
- 1955-08-24 GB GB24343/55A patent/GB815904A/en not_active Expired
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