GB765462A - Apparatus for measuring the properties of liquids - Google Patents
Apparatus for measuring the properties of liquidsInfo
- Publication number
- GB765462A GB765462A GB30574/53A GB3057453A GB765462A GB 765462 A GB765462 A GB 765462A GB 30574/53 A GB30574/53 A GB 30574/53A GB 3057453 A GB3057453 A GB 3057453A GB 765462 A GB765462 A GB 765462A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- liquid
- conductivity
- pipeline
- measuring
- 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
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
- G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
765,462. Electric tests. CROCKATT & SONS, Ltd., W., and CROCKATT, W. C. Feb. 7, 1955 [Nov. 5, 1953], No. 30574/53. Addition to 698,237. Class 37. Apparatus according to the parent Specification for determining the impurity content of a liquid by measuring its conductivity and energizing a relay to operate a release valve when the impurities reach a predetermined value, is characterized by having a plurality of relays which allow the liquid to flow through a selected pipe line in accordance with the degree of impurity. As shown, the liquid in a pipeline 5 is tested for impurity content by measuring its conductivity in a cell 15 connected in series with a temperature-compensating resistor 17, the voltage across the resistor 17 being indicated by a meter 18 and operating a first relay 19 when the conductivity reaches one level, and a second relay 20 when the conductivity reaches a. further level. Relay 19 causes operation of a valve 7 to divert the liquid from pipe 5 to a pipeline 8, and relay 20 causes operation of a further valve 9 to divert the liquid to a pipeline 10. The circuit includes warning lamps 14, 24 and a protective relay 25.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB26815/49A GB698237A (en) | 1949-10-19 | 1949-10-19 | Improvements relating to apparatus for electrically measuring the properties of liquids, the electrical conductivity of which varies with said properties |
GB30574/53A GB765462A (en) | 1949-10-19 | 1953-11-05 | Apparatus for measuring the properties of liquids |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB26815/49A GB698237A (en) | 1949-10-19 | 1949-10-19 | Improvements relating to apparatus for electrically measuring the properties of liquids, the electrical conductivity of which varies with said properties |
GB30574/53A GB765462A (en) | 1949-10-19 | 1953-11-05 | Apparatus for measuring the properties of liquids |
Publications (1)
Publication Number | Publication Date |
---|---|
GB765462A true GB765462A (en) | 1957-01-09 |
Family
ID=60329885
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26815/49A Expired GB698237A (en) | 1949-10-19 | 1949-10-19 | Improvements relating to apparatus for electrically measuring the properties of liquids, the electrical conductivity of which varies with said properties |
GB30574/53A Expired GB765462A (en) | 1949-10-19 | 1953-11-05 | Apparatus for measuring the properties of liquids |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26815/49A Expired GB698237A (en) | 1949-10-19 | 1949-10-19 | Improvements relating to apparatus for electrically measuring the properties of liquids, the electrical conductivity of which varies with said properties |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB698237A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4464315A (en) * | 1982-12-20 | 1984-08-07 | Betz Entec, Inc. | Indexing controller system and method of automatic control of cooling water tower systems |
-
1949
- 1949-10-19 GB GB26815/49A patent/GB698237A/en not_active Expired
-
1953
- 1953-11-05 GB GB30574/53A patent/GB765462A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB698237A (en) | 1953-10-14 |
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