GB880978A - Improvements in or relating to liquid level gauges - Google Patents
Improvements in or relating to liquid level gaugesInfo
- Publication number
- GB880978A GB880978A GB298859A GB298859A GB880978A GB 880978 A GB880978 A GB 880978A GB 298859 A GB298859 A GB 298859A GB 298859 A GB298859 A GB 298859A GB 880978 A GB880978 A GB 880978A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- probe
- liquid
- hunting
- indicator
- 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
- G01F23/245—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 with a probe moved by an auxiliary power, e.g. meter, to follow automatically the level
Abstract
880,978. Indicating liquid level. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Dec. 3, 1959 [Jan. 27, 1959], No. 2988/59. Class 40 (1). A conducting probe 4 carried by a wire from a drum 1 driven by a reversible D.C. motor 6 is controlled to heat at the surface of a liquid 5 with the aid of a relay such as an A.C. excited thyratron 19 which is normally non-conducting and conducts when the probe makes contact with the liquid surface and so grounds the control grid. When the thyratron conducts, the effective field of the motor is reversed by winding 15 and the motor drives the probe clear of the liquid, the extent of the hunting excursions being governed by an eddy current brake 13. Motor 6 also drives an indicator 27 through a selsyn link and a lost-motion coupling 24 which prevents the indicator from following the hunting movements of the motor. To ensure that the lost motion and hunting motion have the same extent, a rheostat 14 adjusts the excitation of the eddy current brake. The indicator pointer 26 makes a number of revolutions indicated by a counter 28. With the aid of reversing switches, the probe may be made to locate a datum position 29.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB298859A GB880978A (en) | 1959-01-27 | 1959-01-27 | Improvements in or relating to liquid level gauges |
| DE1959U0002713 DE1858751U (en) | 1959-01-27 | 1959-12-18 | LIQUID LEVEL INDICATOR. |
| FR815198A FR1245182A (en) | 1959-01-27 | 1960-01-08 | Level gauges for liquids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB298859A GB880978A (en) | 1959-01-27 | 1959-01-27 | Improvements in or relating to liquid level gauges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB880978A true GB880978A (en) | 1961-10-25 |
Family
ID=9749797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB298859A Expired GB880978A (en) | 1959-01-27 | 1959-01-27 | Improvements in or relating to liquid level gauges |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1858751U (en) |
| FR (1) | FR1245182A (en) |
| GB (1) | GB880978A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3248795A (en) * | 1961-10-05 | 1966-05-03 | Joseph J Jarnagin | Elapsed time liquid level telemetering device |
| US4045876A (en) * | 1975-07-07 | 1977-09-06 | W. G. Jaques Company | Liquid level indicator and flow measuring device |
| WO1991002949A1 (en) * | 1989-08-25 | 1991-03-07 | Europa International Manufacturing Pty. Ltd. | Level sensing device |
-
1959
- 1959-01-27 GB GB298859A patent/GB880978A/en not_active Expired
- 1959-12-18 DE DE1959U0002713 patent/DE1858751U/en not_active Expired
-
1960
- 1960-01-08 FR FR815198A patent/FR1245182A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3248795A (en) * | 1961-10-05 | 1966-05-03 | Joseph J Jarnagin | Elapsed time liquid level telemetering device |
| US4045876A (en) * | 1975-07-07 | 1977-09-06 | W. G. Jaques Company | Liquid level indicator and flow measuring device |
| WO1991002949A1 (en) * | 1989-08-25 | 1991-03-07 | Europa International Manufacturing Pty. Ltd. | Level sensing device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1245182A (en) | 1960-11-04 |
| DE1858751U (en) | 1962-09-20 |
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