GB248384A - Improvements in or relating to the method of and apparatus for measuring the pressure of gases or liquids - Google Patents
Improvements in or relating to the method of and apparatus for measuring the pressure of gases or liquidsInfo
- Publication number
- GB248384A GB248384A GB5423/26A GB542326A GB248384A GB 248384 A GB248384 A GB 248384A GB 5423/26 A GB5423/26 A GB 5423/26A GB 542326 A GB542326 A GB 542326A GB 248384 A GB248384 A GB 248384A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capsules
- spring
- pressure
- lever
- bodies
- 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
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
248,384. Cronwall, K.. A. Feb. 25, 1925, [Convention date]. Elastic-diaphragm pressure gauges; indicating means for.-Comprises a method of measuring pressure in which one or more flexible hollow bodies are acted upon by an auxiliary force supplied by springs, weights, magnets &c. which force is automatically varied, when the hollow bodies are under the influence of the pressure to be measured, so as to tend to return the bodies to normal position, the variation being controlled by the movement of the bodies completing electric circuits which bring into play an electric power unit to vary the force, the movement of the unit being transmitted to indicating mechanism. An arm 3 attached to the capsules 2 is provided with adjustable stops 40 arranged on either side of an extension 39 of the frame 1 to limit movement of the capsules. The arm 3 is loaded with a spring 17 and is provided with a recess with which engages a knife edge 4 on a lever 5 acted upon at the other end by a spring 6. The fulcrum of the lever is adjustable and comprises a roller 7 on a nut 8 adapted to be moved by a screw 9 on a shaft 10. A contact lever 19 is provided with a spear-head 20 engaging a recess in the arm 3 against which it is held by a knife edge on a spring-pulled strap 26. When the capsules move under pressure the lever 19 is moved to make the contacts 22, 23 or 22, 24 and cause one or other of the magnets 30, 31 to be energized. The electric motor 16 is then automatically started in one direction or the other and through worm gearing 13, 14 and gears 11, 12 rotates the shaft 10 to move the nut 9 and shift the fulcrum 7, thus altering the leverage of the force exerted by the spring 6 until the capsules 2 are restored to their normal position and the contacts 22, 23. or 22, 24 broken. A pointer 8 on the shaft 10 indicates the pressure. In a modification, the capsules are replaced by a hollow body closed by a corrugated diaphragm which is reinforced by a spring arranged within the body.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE248384X | 1925-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB248384A true GB248384A (en) | 1927-05-25 |
Family
ID=20306106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5423/26A Expired GB248384A (en) | 1925-02-25 | 1926-02-25 | Improvements in or relating to the method of and apparatus for measuring the pressure of gases or liquids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB248384A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE745144C (en) * | 1931-01-29 | 1944-02-28 | Svenska Ackumulator Ab | Measuring device for a physical quantity that works according to the compensation method |
| US2447349A (en) * | 1944-11-04 | 1948-08-17 | Control Instr Co Inc | Ship's log indicator |
| US2450884A (en) * | 1944-07-27 | 1948-10-12 | Sperry Corp | Pressure measuring apparatus |
| US2454636A (en) * | 1945-03-09 | 1948-11-23 | Alan C Davis | Device for preventing overtravel of operating mechanisms |
| US2486587A (en) * | 1944-08-16 | 1949-11-01 | Jr John T Callahan | Pressure measuring apparatus |
| US2557856A (en) * | 1947-05-06 | 1951-06-19 | Kollsman Instr Corp | Altimeter |
| US2557092A (en) * | 1946-04-24 | 1951-06-19 | Sperry Corp | Force-ratio measuring and computing device |
| US2646682A (en) * | 1941-09-02 | 1953-07-28 | Ovtschinnikoff Alexandre | Apparatus for determining external pressure and elevations |
| US2937528A (en) * | 1955-08-01 | 1960-05-24 | Honeywell Regulator Co | Force ratio responsive device |
-
1926
- 1926-02-25 GB GB5423/26A patent/GB248384A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE745144C (en) * | 1931-01-29 | 1944-02-28 | Svenska Ackumulator Ab | Measuring device for a physical quantity that works according to the compensation method |
| US2646682A (en) * | 1941-09-02 | 1953-07-28 | Ovtschinnikoff Alexandre | Apparatus for determining external pressure and elevations |
| US2450884A (en) * | 1944-07-27 | 1948-10-12 | Sperry Corp | Pressure measuring apparatus |
| US2486587A (en) * | 1944-08-16 | 1949-11-01 | Jr John T Callahan | Pressure measuring apparatus |
| US2447349A (en) * | 1944-11-04 | 1948-08-17 | Control Instr Co Inc | Ship's log indicator |
| US2454636A (en) * | 1945-03-09 | 1948-11-23 | Alan C Davis | Device for preventing overtravel of operating mechanisms |
| US2557092A (en) * | 1946-04-24 | 1951-06-19 | Sperry Corp | Force-ratio measuring and computing device |
| US2557856A (en) * | 1947-05-06 | 1951-06-19 | Kollsman Instr Corp | Altimeter |
| US2937528A (en) * | 1955-08-01 | 1960-05-24 | Honeywell Regulator Co | Force ratio responsive device |
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