GB919974A - An improved fluid flow indicating and signalling device - Google Patents
An improved fluid flow indicating and signalling deviceInfo
- Publication number
- GB919974A GB919974A GB2478559A GB2478559A GB919974A GB 919974 A GB919974 A GB 919974A GB 2478559 A GB2478559 A GB 2478559A GB 2478559 A GB2478559 A GB 2478559A GB 919974 A GB919974 A GB 919974A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- piston
- tube
- impedance
- current
- 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
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
- G01P13/0013—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using a solid body which is shifted by the action of the fluid
- G01P13/002—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using a solid body which is shifted by the action of the fluid with electrical coupling to the indicating devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Flow Control (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
919,974. Inductances. ZAVODY ELEKTROTEPELNYCH ZARIZENI (ZEZ) NARODNI PODNIK. July 20, 1959 [July 21,1958], No. 24785/59. Class 38 (2). [Also in Group XXIX] In a fluid flow indicator comprising a tube 3 of non-magnetic, non-conductive material through which the fluid flows in an upward direction, a solenoid coil 2 surrounding at least the lower portion of the tube and connectable in an alternating current indicating and/or signalling circuit 10-20 (Fig. 2), and a piston 1 of magnetic material freely slidable in the tube to vary the impedance of the coil in accordance with the position of the piston 1 in relation to the coil 2, the piston 1 is in the form of a hollow cylinder which is open at its upper end and in the region of its lower end is closed or is closed except for a metering orifice 14 provided .at that end and the cylindrical wall of the piston is formed with one or more longitudinal slots extending from the open end towards the opposite end. The coil 2 is provided with an outer casing 5 of soft steelsheet. Liquid flowing upwards through the tube 3 raises the piston 1 in the tube, thus decreasing the impedance in the coil 2. The coil is connected in series with a coil of a suitable relay 12 in a circuit supplied by a low alternating voltage E. The fall in impedance at the coil 2 results in an increase in current and voltage at the relay coil which closes the current circuit 10-20. If liquid ceases to flow, the piston sinks, the impedance increases, current and voltage in the relay coil are decreased and the current circuit 10-20 is consequently interrupted and will thus indicate the cessation of flow.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS385958 | 1958-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB919974A true GB919974A (en) | 1963-02-27 |
Family
ID=5379904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2478559A Expired GB919974A (en) | 1958-07-21 | 1959-07-20 | An improved fluid flow indicating and signalling device |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE580844A (en) |
| DE (1) | DE1160201B (en) |
| GB (1) | GB919974A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8627728B2 (en) | 2012-01-31 | 2014-01-14 | Hammonds Technical Services, Inc. | System for determining the flow rate in a fluid with liquid additives using reciprocating positive-displacement flow meter |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2849974C2 (en) * | 1978-11-17 | 1982-04-08 | Interflux AG, Küsnacht, Zürich | Flow monitoring device for liquid or gaseous media |
| DE3710920A1 (en) * | 1987-04-01 | 1988-10-20 | Hydraulik Zubehoer Ges Fuer | Lubricating system |
| DE4021557C2 (en) * | 1990-07-06 | 2000-08-17 | Sipra Patent Beteiligung | Device for monitoring the flow of a flowable medium through a flow space |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE307364C (en) * | 1916-05-26 | 1918-08-14 | ||
| DE881262C (en) * | 1951-05-16 | 1953-06-29 | Licentia Gmbh | Float flow meter with inductive remote transmission |
| DE897488C (en) * | 1951-12-06 | 1953-11-23 | Krohne Fa Ludwig | Flow meter |
-
1959
- 1959-07-13 DE DEZ7419A patent/DE1160201B/en active Pending
- 1959-07-18 BE BE580844A patent/BE580844A/en unknown
- 1959-07-20 GB GB2478559A patent/GB919974A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8627728B2 (en) | 2012-01-31 | 2014-01-14 | Hammonds Technical Services, Inc. | System for determining the flow rate in a fluid with liquid additives using reciprocating positive-displacement flow meter |
| US8695434B2 (en) | 2012-01-31 | 2014-04-15 | Hammonds Technical Services, Inc. | Fluid additive delivery system powered by the flowing fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1160201B (en) | 1963-12-27 |
| BE580844A (en) | 1959-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3057977A (en) | Flow switches | |
| ES376566A1 (en) | Sealed valve with electromagnetic action | |
| GB919974A (en) | An improved fluid flow indicating and signalling device | |
| US2628297A (en) | Shielded switch assembly | |
| US3126745A (en) | Lotke | |
| US3181360A (en) | Gas displacement meter | |
| GB647140A (en) | Apparatus for determining the viscosity of fluids | |
| GB811417A (en) | Improvements in or relating to liquid level indicators | |
| GB1116100A (en) | Transducer for measuring the instantaneous rate of flow of a fluid | |
| GB728169A (en) | Improvements in or relating to filling valves and the like | |
| US2677964A (en) | Fluid level indicating and controlling device | |
| GB1492212A (en) | Devices for measuring the density of liquids | |
| GB1108572A (en) | Improvements in or relating to fluid valves | |
| FR2027132A1 (en) | Electric unit for liquid level indication | |
| US2558683A (en) | Audible indicating measuring apparatus | |
| SU406125A1 (en) | BALL FLOW METER | |
| GB968491A (en) | ||
| GB999476A (en) | Improvements in or relating to electric frequency measuring devices | |
| GB1260840A (en) | Improvements relating to fluid flow meters | |
| GB695425A (en) | Fluid flow meter | |
| SU133256A1 (en) | Sensor for continuous measurement of fluid density | |
| GB761903A (en) | Improvements in or relating to the measurement of the electrical conductance of liquids | |
| GB613478A (en) | Improvements in or relating to apparatus for measuring the rate of flow of fluids | |
| GB578803A (en) | Improvements in automatic cut-off valves | |
| GB865505A (en) | Improvements in and relating to level gauging devices |