GB232931A - Improvements in or relating to distant liquid level indicating apparatus - Google Patents
Improvements in or relating to distant liquid level indicating apparatusInfo
- Publication number
- GB232931A GB232931A GB7243/25A GB724325A GB232931A GB 232931 A GB232931 A GB 232931A GB 7243/25 A GB7243/25 A GB 7243/25A GB 724325 A GB724325 A GB 724325A GB 232931 A GB232931 A GB 232931A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid
- pressure
- level
- diaphragm
- liquid level
- 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
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
- G01F23/16—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
232,931. Guichard, L. April 24, 1924, [Convention date]. Indicators actuated by pressure of head of liquid.-The liquid level in a container is indicated by causing a definite increase in a space connected to an open-ended tube dipping into the liquid, and measuring the resulting decrease in air pressure. The variations in air pressure of the space due to fluctuations of level may also be used to indicate the level. The open-ended tube 3 has an enlargement 5, and is connected to a hand pump 1 and manometer 6, which may be at a distance. The two sides of the piston 9 are connected by a passage 8 to equalize pressures in the position shown. When the piston is moved to the right, the passage 8 is closed, and liquid is drawn up towards the vessel 5 to an extent dependent on the liquid level in the tank 4. The reduction of pressure shown on the gauge 6 is an indication of the liquid level. In a modification, the vessel 11, Fig. 3, is provided with a diaphragm 12, permeable to the liquid in the tank, e.g. petrol, and not to the liquid in the tube 3<1>, e.g. glycerine, or mercury. After operating the pump, a valve between the pump and manometer is closed and the changes in level are then continuously indicated. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a sensitive form of manomerter suitable for indicating the small pressure differences obtained. The chamber 13, Fig. 4 (Cancelled), is subjected to the pressure to be measured, and the diaphragm 15 carries a small piston 16 moving in a tube 17 connected to another chamber 18 containing glycerine. An increased pressure is thus transmitted to the diaphragm of the chamber 18. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR232931X | 1924-04-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB232931A true GB232931A (en) | 1926-06-17 |
Family
ID=8882557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7243/25A Expired GB232931A (en) | 1924-04-24 | 1925-03-17 | Improvements in or relating to distant liquid level indicating apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB232931A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5722289A (en) * | 1996-04-11 | 1998-03-03 | Tridelta Industries, Inc. | Cooking appliance with level detection apparatus and method |
-
1925
- 1925-03-17 GB GB7243/25A patent/GB232931A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5722289A (en) * | 1996-04-11 | 1998-03-03 | Tridelta Industries, Inc. | Cooking appliance with level detection apparatus and method |
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