GB554722A - Improvements in or relating to differential pressure gauges - Google Patents
Improvements in or relating to differential pressure gaugesInfo
- Publication number
- GB554722A GB554722A GB1646241A GB1646241A GB554722A GB 554722 A GB554722 A GB 554722A GB 1646241 A GB1646241 A GB 1646241A GB 1646241 A GB1646241 A GB 1646241A GB 554722 A GB554722 A GB 554722A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- liquid
- difference
- pipes
- differential pressure
- 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
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/04—Means for compensating for effects of changes of temperature, i.e. other than electric compensation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
- G01L13/023—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using bellows
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
- G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
554,722. Differential pressure gauges. B. & R. PATENTS, Ltd., and BIRCH, G. C. R. Dec. 22, 1941, No. 16462. [Class 106 (ii)] A differential pressure gauge comprises two sealed liquid systems extending respectively from two flexible elements directly exposed to two external fluid pressures, whose difference is to be measured, to two metal bellows acting on opposite ends of a normally balanced lever connected to an indicating device. Two small diameter pipes A, A<SP>1</SP> lead from the indicating unit to two elements B, B<SP>1</SP> subjected to the pressures whose difference is to be measured. Each element consists of a pair of cup-shaped diaphragms C, C<SP>1</SP> sealed at the edges and communicating with the pipe A, or A<SP>1</SP>, while being enclosed in a casing C<SP>5</SP> to which pressure is admitted by holes C<SP>6</SP>. The pipes lead to bellows D, D<SP>1</SP> fixed at their lower ends and attached at their upper ends to the ends of lever E on a fixed pivot. A difference in pressure rocks lever E, the movement being transmitted by arm E2, segment F<SP>1</SP> and pinion G<SP>1</SP> to pointer G. The elements B, B<SP>1</SP> and pipes A, A<SP>1</SP> are arranged as close together as possible so as to minimize errors due to temperature. The device may be used for measuring the depth of liquid in a tank, one element being in the bottom of the tank, and the other exposed either to the atmosphere or to the vapour pressure above the liquid level. Another use is to measure the pressure difference on the two sides of a restriction such as a nozzle through which liquid is flowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1646241A GB554722A (en) | 1941-12-22 | 1941-12-22 | Improvements in or relating to differential pressure gauges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1646241A GB554722A (en) | 1941-12-22 | 1941-12-22 | Improvements in or relating to differential pressure gauges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB554722A true GB554722A (en) | 1943-07-16 |
Family
ID=10077766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1646241A Expired GB554722A (en) | 1941-12-22 | 1941-12-22 | Improvements in or relating to differential pressure gauges |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB554722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2587701A (en) * | 1948-11-22 | 1952-03-04 | Jr James B Davis | Liquid fuel meter |
| FR2870291A1 (en) * | 2004-05-17 | 2005-11-18 | Renault Sas | DEVICE FOR PRESSURIZING UP AND DOWN A PARTICLE FILTER OF AN EXHAUST LINE |
-
1941
- 1941-12-22 GB GB1646241A patent/GB554722A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2587701A (en) * | 1948-11-22 | 1952-03-04 | Jr James B Davis | Liquid fuel meter |
| FR2870291A1 (en) * | 2004-05-17 | 2005-11-18 | Renault Sas | DEVICE FOR PRESSURIZING UP AND DOWN A PARTICLE FILTER OF AN EXHAUST LINE |
| EP1598533A2 (en) * | 2004-05-17 | 2005-11-23 | Renault s.a.s. | Device for measuring pressure before and after a particle filter in an exhaust gas line |
| EP1598533A3 (en) * | 2004-05-17 | 2005-12-28 | Renault s.a.s. | Device for measuring pressure before and after a particle filter in an exhaust gas line |
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