GB286469A - Improvements in or relating to fluid flow meters - Google Patents
Improvements in or relating to fluid flow metersInfo
- Publication number
- GB286469A GB286469A GB740027A GB740027A GB286469A GB 286469 A GB286469 A GB 286469A GB 740027 A GB740027 A GB 740027A GB 740027 A GB740027 A GB 740027A GB 286469 A GB286469 A GB 286469A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- brushes
- transformer
- resistance
- 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
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/37—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of communicating tubes or reservoirs with movable fluid levels, e.g. by U-tubes
- G01F1/372—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of communicating tubes or reservoirs with movable fluid levels, e.g. by U-tubes with electrical or electro-mechanical indication
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Measuring Fluid Pressure (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
286,469. Sandison, A. G. S., and Electrofio Meters Co., Ltd. March 17, 1927. Liquid-level pressure gauges.-In a fluid flow meter the measuring circuit is controlled by the differential pressure across an orifice 2 and automatic means is provided, controlled by, and to correct for pressure, temperature, or density variations by adjusting the voltage tapping on a transformer in the measuring circuit. Fig. 3 shows a differential manometer 5 varying a resistance 1 in circuit with indicating, recording or indicating instruments having a current winding 7. Correction is applied by movement of one or more contact brushes 15 over tappings 12 on the transformer 10 to vary the voltage applied to either the control winding 8 or to the circuit including the resistance 1 and the current winding 7. The contacts and brushes are preferably so arranged that no brush 15 touches two contacts 12 at once and the resistance 16 between a pair of brushes is sufficient to limit the current when two contacts are engaged. In a modification one set of brushes and contacts is arranged in the primary and another set in the secondary of an auto-transformer in the circuit including resistance 1 and the current winding 7. Fig. 5 shows a construction in which correction is made for one variable by means of a Bourdon tube 43 arranged to rotate an arm 38 carrying brushes 15 attached to flexible strips 35 moving over the tapping contacts 12 of the transformer 10. A pointer 48 is carried by the arm 38 to indicate temperature or pressure, in the former case the inlet 47 is connected to a bulb containing an expansible medium subjected to the temperature to be corrected for.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB740027A GB286469A (en) | 1927-03-17 | 1927-03-17 | Improvements in or relating to fluid flow meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB740027A GB286469A (en) | 1927-03-17 | 1927-03-17 | Improvements in or relating to fluid flow meters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB286469A true GB286469A (en) | 1928-03-08 |
Family
ID=9832382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB740027A Expired GB286469A (en) | 1927-03-17 | 1927-03-17 | Improvements in or relating to fluid flow meters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB286469A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2431722A (en) * | 1944-06-14 | 1947-12-02 | Cons Edison Co New York Inc | Steam metering apparatus |
| US3002383A (en) * | 1956-12-28 | 1961-10-03 | Mittelmann Eugene | Electromagnetic induction flowmeter |
-
1927
- 1927-03-17 GB GB740027A patent/GB286469A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2431722A (en) * | 1944-06-14 | 1947-12-02 | Cons Edison Co New York Inc | Steam metering apparatus |
| US3002383A (en) * | 1956-12-28 | 1961-10-03 | Mittelmann Eugene | Electromagnetic induction flowmeter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2539892A (en) | Pressure measuring device | |
| US1191416A (en) | Measuring apparatus. | |
| US2293403A (en) | System for indicating ratios | |
| GB286469A (en) | Improvements in or relating to fluid flow meters | |
| US1449437A (en) | Flow meter | |
| US1855205A (en) | Differential pressure gauge for corrosive fluids | |
| US1891155A (en) | Metering | |
| US2526329A (en) | Expanded scale electronic voltmeter | |
| US2160266A (en) | Measuring instrument | |
| US2738678A (en) | Liquid manometers | |
| GB559149A (en) | Improvements in pressure and like gauges | |
| US1681174A (en) | Orifice meter | |
| US1959743A (en) | Flow meter for flastic mediums | |
| US2081364A (en) | Measuring system | |
| US1615505A (en) | High-temperature thermometer | |
| US2032383A (en) | Meter | |
| US1229805A (en) | Fluid-flow meter. | |
| US2122364A (en) | Compensated concentration testing system and method | |
| US2134864A (en) | Flowmeter | |
| GB205669A (en) | Improvements in and relating to flow meters | |
| US1715511A (en) | Indicating or recording apparatus | |
| US2468896A (en) | Instrument for measuring and indicating the intensity of gas currents | |
| GB566361A (en) | Improvements in or relating to devices or instrument for measuring, or for compensating for variations in fluid pressures | |
| SU13122A1 (en) | Flow indicator of liquid, steam or gas flowing through the venturi | |
| US2045635A (en) | Manometer |