GB554722A - Improvements in or relating to differential pressure gauges - Google Patents

Improvements in or relating to differential pressure gauges

Info

Publication number
GB554722A
GB554722A GB1646241A GB1646241A GB554722A GB 554722 A GB554722 A GB 554722A GB 1646241 A GB1646241 A GB 1646241A GB 1646241 A GB1646241 A GB 1646241A GB 554722 A GB554722 A GB 554722A
Authority
GB
United Kingdom
Prior art keywords
pressure
liquid
difference
pipes
differential pressure
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
Application number
GB1646241A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
B & R Patents Ltd
Original Assignee
B & R Patents Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by B & R Patents Ltd filed Critical B & R Patents Ltd
Priority to GB1646241A priority Critical patent/GB554722A/en
Publication of GB554722A publication Critical patent/GB554722A/en
Expired legal-status Critical Current

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
    • G01L19/04—Means for compensating for effects of changes of temperature, i.e. other than electric compensation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
    • G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
    • G01L13/023—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using bellows
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
    • G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
    • G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

554,722. Differential pressure gauges. B. & R. PATENTS, Ltd., and BIRCH, G. C. R. Dec. 22, 1941, No. 16462. [Class 106 (ii)] A differential pressure gauge comprises two sealed liquid systems extending respectively from two flexible elements directly exposed to two external fluid pressures, whose difference is to be measured, to two metal bellows acting on opposite ends of a normally balanced lever connected to an indicating device. Two small diameter pipes A, A<SP>1</SP> lead from the indicating unit to two elements B, B<SP>1</SP> subjected to the pressures whose difference is to be measured. Each element consists of a pair of cup-shaped diaphragms C, C<SP>1</SP> sealed at the edges and communicating with the pipe A, or A<SP>1</SP>, while being enclosed in a casing C<SP>5</SP> to which pressure is admitted by holes C<SP>6</SP>. The pipes lead to bellows D, D<SP>1</SP> fixed at their lower ends and attached at their upper ends to the ends of lever E on a fixed pivot. A difference in pressure rocks lever E, the movement being transmitted by arm E2, segment F<SP>1</SP> and pinion G<SP>1</SP> to pointer G. The elements B, B<SP>1</SP> and pipes A, A<SP>1</SP> are arranged as close together as possible so as to minimize errors due to temperature. The device may be used for measuring the depth of liquid in a tank, one element being in the bottom of the tank, and the other exposed either to the atmosphere or to the vapour pressure above the liquid level. Another use is to measure the pressure difference on the two sides of a restriction such as a nozzle through which liquid is flowing.
GB1646241A 1941-12-22 1941-12-22 Improvements in or relating to differential pressure gauges Expired GB554722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1646241A GB554722A (en) 1941-12-22 1941-12-22 Improvements in or relating to differential pressure gauges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1646241A GB554722A (en) 1941-12-22 1941-12-22 Improvements in or relating to differential pressure gauges

Publications (1)

Publication Number Publication Date
GB554722A true GB554722A (en) 1943-07-16

Family

ID=10077766

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1646241A Expired GB554722A (en) 1941-12-22 1941-12-22 Improvements in or relating to differential pressure gauges

Country Status (1)

Country Link
GB (1) GB554722A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2587701A (en) * 1948-11-22 1952-03-04 Jr James B Davis Liquid fuel meter
FR2870291A1 (en) * 2004-05-17 2005-11-18 Renault Sas DEVICE FOR PRESSURIZING UP AND DOWN A PARTICLE FILTER OF AN EXHAUST LINE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2587701A (en) * 1948-11-22 1952-03-04 Jr James B Davis Liquid fuel meter
FR2870291A1 (en) * 2004-05-17 2005-11-18 Renault Sas DEVICE FOR PRESSURIZING UP AND DOWN A PARTICLE FILTER OF AN EXHAUST LINE
EP1598533A2 (en) * 2004-05-17 2005-11-23 Renault s.a.s. Device for measuring pressure before and after a particle filter in an exhaust gas line
EP1598533A3 (en) * 2004-05-17 2005-12-28 Renault s.a.s. Device for measuring pressure before and after a particle filter in an exhaust gas line

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