GB1293144A - Improvements in or relating to flowmeters - Google Patents
Improvements in or relating to flowmetersInfo
- Publication number
- GB1293144A GB1293144A GB401670A GB401670A GB1293144A GB 1293144 A GB1293144 A GB 1293144A GB 401670 A GB401670 A GB 401670A GB 401670 A GB401670 A GB 401670A GB 1293144 A GB1293144 A GB 1293144A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reservoir
- lamp
- movement
- cell
- scanning head
- 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
- 239000007788 liquid Substances 0.000 abstract 3
- 238000012360 testing method Methods 0.000 abstract 3
- 239000012530 fluid Substances 0.000 abstract 2
- 101100188552 Arabidopsis thaliana OCT3 gene Proteins 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
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
- G01F1/52—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 the height of the fluid level due to the lifting power of the fluid flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
Abstract
1293144 Testing valves; linkwork I C P SMITH 4 Jan 1971 [3 Oct 1969 28 Jan 1970] 48598/69 and 4016/70 Headings F2K and F2V [Also in Division G1] A fluid flowmeter comprises a reservoir 6, a capillary tube 8 connected to and inclined upwardly from the bottom of the reservoir, a fluid transfer tube 3 connected between the top of the reservoir and the other end of the capillary tube having a first opening 1 near its connection with the reservoir 6 and a second opening 5 at its opposite end and a valve 4 between these two connections. In us a liquid 10 is placed in the reservoir, a stop cock or other article whose freedom from leaks is to be tested is connected with rubber or plastics tubing at 5. With valve 4 open, air at a pressure of 3PS1 is introduced to the apparatus. Valve 4 is then closed and as air leaks out of the stop cock &c., the movement of liquid along the capillary between pointers 14 is timed. Rates of air flow as low as 1 Á 1 per minute have been observed. The timing may be achieved automatically (Fig. 4). Synchronous motor 36 turns cams 37 and 40 and drives photo-electric cell 29 and lamp 30 along capillary tube 26 from reservoir 25 and back. At the moment the cell and lamp begin their return journey solenoid valve 23 closes and the point at which the cell and lamp detect the liquid column in tube 26 is determined by the rate of leakage from the body under test and the (known) rate of movement of the cell and lamp. This position determines the voltage of the secondary coil of transformer T1 whose armature 38<SP>1</SP> is moved in accordance with the rotation of cam 37 also driven by the motor 36. The voltage is thus proportional to the rate of leakage from the article under test. Cam 40 controls the positions of switches 24 and 39. Switch 24 controls the solenoid valve 23 and switch 39 renders the photo-electric scanning head inoperative on its outward stroke along the capillary. The scanning head repeats its movement so that successive rates of leakage are obtained. The linkwork controlling the movement of the scanning head 29, 30 comprises disc 34 driven by the motor 36 which carries pin 33 which engages slot 32 on lever 31. The end of the lever 31 opposite the scanning head comprises a sliding pivot.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4859869 | 1969-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1293144A true GB1293144A (en) | 1972-10-18 |
Family
ID=10449196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB401670A Expired GB1293144A (en) | 1969-10-03 | 1969-10-03 | Improvements in or relating to flowmeters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1293144A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4078130A4 (en) * | 2019-12-21 | 2024-04-24 | Inline Test AS | GAS LEAK METER |
-
1969
- 1969-10-03 GB GB401670A patent/GB1293144A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4078130A4 (en) * | 2019-12-21 | 2024-04-24 | Inline Test AS | GAS LEAK METER |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2392741A (en) | Dispensing valve | |
| GB1461835A (en) | Fluid pressure valves | |
| GB1531083A (en) | Valves | |
| GB720161A (en) | Improvements relating to the sampling of liquids | |
| GB1293144A (en) | Improvements in or relating to flowmeters | |
| GB1179459A (en) | Chromatographic Apparatus | |
| GB1372566A (en) | Container filling apparatus | |
| GB1223832A (en) | Beer dispensing apparatus | |
| GB1338743A (en) | Meter prover apparatus and method | |
| GB1519102A (en) | Water softening apparatus | |
| SU634150A1 (en) | Automatic sampler of liquid media from pipeline | |
| GB674139A (en) | Improvements in or relating to devices for delivering measured quantities of liquid | |
| GB1524377A (en) | Filling devices | |
| GB1026226A (en) | Magnetic liquid injection valve and method of operating same | |
| JPS57161383A (en) | Flow-rate control valve | |
| GB648860A (en) | Automatic fluid sampling apparatus with electric timing mechanism | |
| JPS6046308B2 (en) | solenoid valve | |
| IE39765B1 (en) | Measuring installation for liquids | |
| GB939381A (en) | Improvements in or relating to fluid dispensing valves | |
| ES454408A1 (en) | IMPROVEMENTS INTRODUCED IN A CONTROL MEMBER FOR A VALVE, TOGETHER WITH THE CORRESPONDING VALVE. | |
| US1951797A (en) | Meter | |
| RU1838764C (en) | Device for measuring discharge of oil well | |
| SU87476A1 (en) | Lime milk dispenser | |
| FR2400694A1 (en) | Flowmeter for vehicle fuel line - has pressure regulator with pulse counter attached for flow indication | |
| ES438622A1 (en) | Improvements in the construction of valves for filling machines of bottles of small diameter mouth. (Machine-translation by Google Translate, not legally binding) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |