GB589540A - Improvements in and relating to cistern barometers - Google Patents
Improvements in and relating to cistern barometersInfo
- Publication number
- GB589540A GB589540A GB957841A GB957841A GB589540A GB 589540 A GB589540 A GB 589540A GB 957841 A GB957841 A GB 957841A GB 957841 A GB957841 A GB 957841A GB 589540 A GB589540 A GB 589540A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cistern
- mercury
- barometers
- relating
- barometer
- 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
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/18—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements using liquid as the pressure-sensitive medium, e.g. liquid-column gauges
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
589,540. Barometers. SCHOUTE, C. July 28, 1941, No. 9578. [Class 106 (ii)] A cistern barometer is compensated for temperature errors by introducing into the closed space 3, above the level of the mercury, a gas, such as neon, the pressure p of which, at a predetermined value P of atmospheric pressure, is equal 273a / 1+(273+t)a P + A/D, in which p 1+(273+t)a D and P are measured in cm. of mercury at 0‹ C., t is the temperature value in ‹C. at which the indication of the barometer must be equal to the indication thereof at 0‹ C., and A, D, and a represent respectively the quantity of mercury in cubic cm., the inner area of the cistern 2 less the inner area of the tube 1 in square cm., and the coefficient of expansion of the mercury.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB957841A GB589540A (en) | 1941-07-28 | 1941-07-28 | Improvements in and relating to cistern barometers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB957841A GB589540A (en) | 1941-07-28 | 1941-07-28 | Improvements in and relating to cistern barometers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB589540A true GB589540A (en) | 1947-06-24 |
Family
ID=9874702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB957841A Expired GB589540A (en) | 1941-07-28 | 1941-07-28 | Improvements in and relating to cistern barometers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB589540A (en) |
-
1941
- 1941-07-28 GB GB957841A patent/GB589540A/en not_active Expired
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