GB381811A - Apparatus for indicating the depth of liquids in tanks, containers, and the like - Google Patents
Apparatus for indicating the depth of liquids in tanks, containers, and the likeInfo
- Publication number
- GB381811A GB381811A GB289132A GB289132A GB381811A GB 381811 A GB381811 A GB 381811A GB 289132 A GB289132 A GB 289132A GB 289132 A GB289132 A GB 289132A GB 381811 A GB381811 A GB 381811A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- liquid
- indicator
- cock
- checked
- 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
- G01F23/22—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/24—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
- G01F23/246—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid thermal devices
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
381,811. Indicating liquid levels. NETTEL, F., 7, Minami Teramachi Mita Shiba-Ku, Tokio. Jan. 30, 1932, No. 2891. [Class 123 (i).] A liquid level indicator, applicable to highpressure steam boilers, comprises a tube a containing an electric heater b, b<1> and surrounded by a coil c, c<1> connected to an indicator such as a Wheatstone bridge and galvanometer. The coil c, c<1> is exposed to the heat from the wire b, b<1> and to the cooling effect of the liquid. The latter effect varies with the depth of immersion, which is thus measured by the indicator. An enclosing tube d is provided. The effect of temperature changes in the liquid may be compensated in known manner. The readings of the indicator may be checked by providing an additional tube f, Fig. 2, open at the bottom, and having a small opening h at the top. A stop-cock g having a much larger opening to the atmosphere is provided, and when closed allows the apparatus to operate in the normal manner. When the cock g is opened, liquid fills the tube f and a reading can be obtained which should correspond to the highest water level in the boiler. The low water level may be checked by introducing a pressure fluid through the cock g to expel water from the tube f.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB289132A GB381811A (en) | 1932-01-30 | 1932-01-30 | Apparatus for indicating the depth of liquids in tanks, containers, and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB289132A GB381811A (en) | 1932-01-30 | 1932-01-30 | Apparatus for indicating the depth of liquids in tanks, containers, and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB381811A true GB381811A (en) | 1932-10-13 |
Family
ID=9747955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB289132A Expired GB381811A (en) | 1932-01-30 | 1932-01-30 | Apparatus for indicating the depth of liquids in tanks, containers, and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB381811A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2468676A (en) * | 1945-04-20 | 1949-04-26 | Premier Crystal Lab Inc | Level indicating device for fluent materials |
| US2930232A (en) * | 1955-07-20 | 1960-03-29 | Morton F Spears | Device for manifesting thermal boundaries |
| US3030809A (en) * | 1957-09-23 | 1962-04-24 | Westinghouse Electric Corp | Liquid level indicating systems |
| US3324722A (en) * | 1964-12-23 | 1967-06-13 | Atomic Power Dev Ass Inc | Continuous fluid level measuring apparatus |
| US3432840A (en) * | 1965-09-28 | 1969-03-11 | Motorola Inc | Fluid level indicator |
| US5044764A (en) * | 1989-03-08 | 1991-09-03 | Snow Brand Milk Products Co., Ltd. | Method and apparatus for fluid state determination |
-
1932
- 1932-01-30 GB GB289132A patent/GB381811A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2468676A (en) * | 1945-04-20 | 1949-04-26 | Premier Crystal Lab Inc | Level indicating device for fluent materials |
| US2930232A (en) * | 1955-07-20 | 1960-03-29 | Morton F Spears | Device for manifesting thermal boundaries |
| US3030809A (en) * | 1957-09-23 | 1962-04-24 | Westinghouse Electric Corp | Liquid level indicating systems |
| US3324722A (en) * | 1964-12-23 | 1967-06-13 | Atomic Power Dev Ass Inc | Continuous fluid level measuring apparatus |
| US3432840A (en) * | 1965-09-28 | 1969-03-11 | Motorola Inc | Fluid level indicator |
| US5044764A (en) * | 1989-03-08 | 1991-09-03 | Snow Brand Milk Products Co., Ltd. | Method and apparatus for fluid state determination |
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