GB647752A - Improvements in or relating to differential manometers - Google Patents

Improvements in or relating to differential manometers

Info

Publication number
GB647752A
GB647752A GB3187448A GB3187448A GB647752A GB 647752 A GB647752 A GB 647752A GB 3187448 A GB3187448 A GB 3187448A GB 3187448 A GB3187448 A GB 3187448A GB 647752 A GB647752 A GB 647752A
Authority
GB
United Kingdom
Prior art keywords
pressure
photo
strip
manometer
disc
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
GB3187448A
Inventor
Harry Rostron Hindley
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.)
PARNALL YATE Ltd
Original Assignee
PARNALL YATE 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 PARNALL YATE Ltd filed Critical PARNALL YATE Ltd
Priority to GB3187448A priority Critical patent/GB647752A/en
Publication of GB647752A publication Critical patent/GB647752A/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
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/18—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements using liquid as the pressure-sensitive medium, e.g. liquid-column gauges
    • G01L7/22—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements using liquid as the pressure-sensitive medium, e.g. liquid-column gauges involving floats, e.g. floating bells

Landscapes

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

Abstract

647,752. Pressure gauges. PARNALL (YATE), Ltd. Dec. 9, 1948, No. 31874. [Class 40 (iii)] The differential pressure manometer of Specification 622,722, [Group XIX], is modified to give photo-electric indications. The manometer comprises pressure bells suspended from a beam 1 mounted on a beryllium-copper torsion strip 2. An opaque disc 4, carried by an arm 5 dependent from the beam 1, is interposed between a lamp 6 and a photo-cell 7 which may be connected in any suitable indicating or recording circuit. Alternatively the disc 4 may be replaced by a glass plate of varying optical density. The pressure range may be increased by reducing the effective twisting length of the strip 2.
GB3187448A 1948-12-09 1948-12-09 Improvements in or relating to differential manometers Expired GB647752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3187448A GB647752A (en) 1948-12-09 1948-12-09 Improvements in or relating to differential manometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3187448A GB647752A (en) 1948-12-09 1948-12-09 Improvements in or relating to differential manometers

Publications (1)

Publication Number Publication Date
GB647752A true GB647752A (en) 1950-12-20

Family

ID=10329688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3187448A Expired GB647752A (en) 1948-12-09 1948-12-09 Improvements in or relating to differential manometers

Country Status (1)

Country Link
GB (1) GB647752A (en)

Similar Documents

Publication Publication Date Title
GB647752A (en) Improvements in or relating to differential manometers
GB780304A (en) Improvements in or relating to glass articles and methods of producing same
GB812576A (en) Improvements in or relating to glass composition
GB815933A (en) Transducer assembly
GB763226A (en) Improvements in electro-mechanical transducers
GB721388A (en) Improvements in mercury manometers, particularly sphygmomanometers
GB498357A (en) Improvements in or relating to pressure gauges
GB804424A (en) Improvements relating to manometers
GB407451A (en) Improvements in barometers and like instruments
GB980805A (en) Improvements in or relating to tubing for instruments and other devices
GB913420A (en) Improvements in or relating to stereophonic gramophone pick-ups
GB707427A (en) Improvements in or relating to micrometers
GB1283888A (en) Musical instrument
GB545543A (en) Improvements relating to pressure gauges and like indicating instruments
GB711087A (en) Improvements in devices for translating the movement of a float into rotary movementof a controlling, indicating or recording instrument
GB470714A (en) A new or improved goniometer
GB729087A (en) Measuring device
GB577675A (en) Improvements in or relating to instruments incorporating window-covered scales or charts
GB640871A (en) Improvements relating to the recording of sound
GB652130A (en) Improvements in or relating to dial instruments, such as manometers and the like
GB792416A (en) Improvements in indicating or/and recording instruments or relays
GB603017A (en) Improvements in or relating to compound diaphragms
GB162582A (en) Improvements in or relating to recording pressure gauges, and other like measuring instruments
GB808826A (en) Wide angle objective for enlargers
GB517245A (en) Indicating or recording device for magnetic field balances