GB526910A - Improvements in or relating to temperature indicating or recording instruments - Google Patents
Improvements in or relating to temperature indicating or recording instrumentsInfo
- Publication number
- GB526910A GB526910A GB969939A GB969939A GB526910A GB 526910 A GB526910 A GB 526910A GB 969939 A GB969939 A GB 969939A GB 969939 A GB969939 A GB 969939A GB 526910 A GB526910 A GB 526910A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- pointer
- movement
- capillary device
- temperature indicating
- 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
- G01K5/36—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 the body being a tubular spring, e.g. Bourdon tube
- G01K5/38—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 the body being a tubular spring, e.g. Bourdon tube of spiral formation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
526,910. Thermometers. NEGRETTI, H. N., NEGRETTI, P. E., and IBBOTT, H. W. March 28, 1939, No. 9699. [Class 97 (iii)] In a temperature indicating instrument of the Bourdon tube type having a capillary device through which the tube is influenced and wherein the capacity of the tube is large relative to the capacity of the capillary device, the pointer is coupled to the tube at a point between the fixed and free ends of the tube thus avoiding an increase in the pointer movement and avoiding any appreciable increase in the size of the instrument whilst at the same time accommodating the maximum expansion of the bulb contents. As shown, the Bourdon tube 5 has three coils and its fixed end 4 is connected to the bulb (not shown) through a tube 3, capillary device 2 and pipe 1. The free end of the tube is connected to a member 20 pivoted about an axis 21. The movement of the Bourdon tube is communicated to the indicating pointer 6 from a point 8 in the outer coil, by means of a bimetallic strip 22 and disc 11. A large movement of the pointer is thus avoided. The end 12 of the pointer is cranked to move over an arcuate scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB969939A GB526910A (en) | 1939-03-28 | 1939-03-28 | Improvements in or relating to temperature indicating or recording instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB969939A GB526910A (en) | 1939-03-28 | 1939-03-28 | Improvements in or relating to temperature indicating or recording instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB526910A true GB526910A (en) | 1940-09-27 |
Family
ID=9877055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB969939A Expired GB526910A (en) | 1939-03-28 | 1939-03-28 | Improvements in or relating to temperature indicating or recording instruments |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB526910A (en) |
-
1939
- 1939-03-28 GB GB969939A patent/GB526910A/en not_active Expired
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