GB811916A - A fluid pressure indicator - Google Patents
A fluid pressure indicatorInfo
- Publication number
- GB811916A GB811916A GB2133957A GB2133957A GB811916A GB 811916 A GB811916 A GB 811916A GB 2133957 A GB2133957 A GB 2133957A GB 2133957 A GB2133957 A GB 2133957A GB 811916 A GB811916 A GB 811916A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- cup
- pressure
- bonnet
- windows
- 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
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/12—Alarms or signals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
811,916. Pressure indicators. BASTIANBLESSING CO. July 11, 1955, No. 21339/57. Divided out of 811,915. Class 106 (2). A fluid-pressure indicator comprises a body 20 connected to a pressure source by a passage 25, a resilient diaphragm 28, a bonnet 30 clamping the diaphragm in place and having a window 34 therein, a signal element 50 movable in response to movement of the diaphragm 28 to move across the window 34, a spring which urges the diaphragm 28 and signal element 50 in one direction, the diaphragm 28 being mounted to snap in one direction or the other when the pressure reaches a critical point, and a screw 41 for varying the compression on the spring without altering the position of the signal element 50. The diaphragm 28 is clamped between the base 20 and the bonnet 30, which has windows 34 on opposite walls. Resting on the diaphragm is a cup member 50 of green plastic, into which telescopes an inverted cup member 43 of red plastic, the cups being held apart by the spring which is supported in the bonnet against upward movement by a flange 42 and threads into a nut 44. The bonnet 30 is covered by a transparent hood 36, the thread 37 of which permits restrictive communication with the atmosphere. In the position shown the indicator is in the warning position with the diaphragm in its lowermost position since it is subject to a pressure lower than the critical value. In this position the red cup 43 is visible through the windows 34. When the pressure rises above the critical value, the diaphragm which is of larger area than the recess 26 which it covers, snaps over and raises the green cup 50 to cover the red cup 43 and be visible through the windows. In a modification the nut 44 is made integral with the upper cup 43. The indicator is described in combination with a domestic liquefied petroleum gas dispensing system, such as that described in Specification 811,915.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2133957A GB811916A (en) | 1955-07-11 | 1955-07-11 | A fluid pressure indicator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2133957A GB811916A (en) | 1955-07-11 | 1955-07-11 | A fluid pressure indicator |
Publications (1)
Publication Number | Publication Date |
---|---|
GB811916A true GB811916A (en) | 1959-04-15 |
Family
ID=10161204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2133957A Expired GB811916A (en) | 1955-07-11 | 1955-07-11 | A fluid pressure indicator |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB811916A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1207706B (en) * | 1959-11-20 | 1965-12-23 | Bacharach Ind Instr Company | Device for monitoring the degree of contamination of air filters for internal combustion engines |
DE1245641B (en) * | 1960-03-18 | 1967-07-27 | Coopers Mech Joints | Display device for the degree of pollution of air filters for internal combustion engines |
GB2200993A (en) * | 1987-02-10 | 1988-08-17 | Domnick Hunter Filters Ltd | Pressure indicators |
-
1955
- 1955-07-11 GB GB2133957A patent/GB811916A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1207706B (en) * | 1959-11-20 | 1965-12-23 | Bacharach Ind Instr Company | Device for monitoring the degree of contamination of air filters for internal combustion engines |
DE1245641B (en) * | 1960-03-18 | 1967-07-27 | Coopers Mech Joints | Display device for the degree of pollution of air filters for internal combustion engines |
GB2200993A (en) * | 1987-02-10 | 1988-08-17 | Domnick Hunter Filters Ltd | Pressure indicators |
GB2200993B (en) * | 1987-02-10 | 1990-09-12 | Domnick Hunter Filters Ltd | Pressure indicator |
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