GB504285A - A new or improved device for measuring the contraction or expansion of gaseous masses - Google Patents
A new or improved device for measuring the contraction or expansion of gaseous massesInfo
- Publication number
- GB504285A GB504285A GB2872337A GB2872337A GB504285A GB 504285 A GB504285 A GB 504285A GB 2872337 A GB2872337 A GB 2872337A GB 2872337 A GB2872337 A GB 2872337A GB 504285 A GB504285 A GB 504285A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contraction
- expansion
- galvanometers
- density
- passing
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Volume Flow (AREA)
Abstract
504,285. Electric signalling systems SYNTHETIC OILS, Ltd., and AICHER, A. A. Oct. 21, 1937, No. 28723. [Class 40 (i)] In order to measure the expansion or contraction of a gas passing through a processing apparatus 2, the rate of flow in the incoming and outgoing pipes 1, 3 is measured by utilizing the difference in pressure in tubes 6, 7 to displace the liquid in the annular chamber 4, the chamber rotating against gravity or spring control, moving a pointer 9 over a resistance 10. The two rates of flow are indicated by galvanometers 12, 13 the current actuating them also passing to the coils of a differential galvanometer 14, which thus indicates the expansion or contraction which has taken place. The scales of galvanometers 13, 14 may be calibrated to allow for changes in density and composition of the gas after passing through the apparatus 2, or an electrical correcting network may be used. Alternatively, the compensation for change in density may be made by a device which determines the density of the gas and is electrically or mechanically coupled to the devices 9, 10 to correct the potential applied to the galvanometers 13, 14. The galvanometer 14 may operate an alarm if the volume change exceeds certain limits and according to the Provisional Specification, a barretter may be inserted in circuit with the resistances 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2872337A GB504285A (en) | 1937-10-21 | 1937-10-21 | A new or improved device for measuring the contraction or expansion of gaseous masses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2872337A GB504285A (en) | 1937-10-21 | 1937-10-21 | A new or improved device for measuring the contraction or expansion of gaseous masses |
Publications (1)
Publication Number | Publication Date |
---|---|
GB504285A true GB504285A (en) | 1939-04-21 |
Family
ID=10280062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2872337A Expired GB504285A (en) | 1937-10-21 | 1937-10-21 | A new or improved device for measuring the contraction or expansion of gaseous masses |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB504285A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2423394A (en) * | 1943-12-30 | 1947-07-01 | Niles Bement Pond Co | Device for measuring the ratio between two variables |
US2549625A (en) * | 1947-10-14 | 1951-04-17 | Fairchild Camera Instr Co | Pneumatic temperature-responsive apparatus |
US2740295A (en) * | 1951-02-07 | 1956-04-03 | Perchonok Eugene | Temperature ratio measurement means |
-
1937
- 1937-10-21 GB GB2872337A patent/GB504285A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2423394A (en) * | 1943-12-30 | 1947-07-01 | Niles Bement Pond Co | Device for measuring the ratio between two variables |
US2549625A (en) * | 1947-10-14 | 1951-04-17 | Fairchild Camera Instr Co | Pneumatic temperature-responsive apparatus |
US2740295A (en) * | 1951-02-07 | 1956-04-03 | Perchonok Eugene | Temperature ratio measurement means |
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