GB558194A - Improvements in or relating to pneumatic means for the remote indication of a variable - Google Patents

Improvements in or relating to pneumatic means for the remote indication of a variable

Info

Publication number
GB558194A
GB558194A GB853742A GB853742A GB558194A GB 558194 A GB558194 A GB 558194A GB 853742 A GB853742 A GB 853742A GB 853742 A GB853742 A GB 853742A GB 558194 A GB558194 A GB 558194A
Authority
GB
United Kingdom
Prior art keywords
pipe
nozzle
tube
variable
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
GB853742A
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.)
Cambridge Instruments Ltd
Original Assignee
Cambridge Instruments 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 Cambridge Instruments Ltd filed Critical Cambridge Instruments Ltd
Priority to GB853742A priority Critical patent/GB558194A/en
Publication of GB558194A publication Critical patent/GB558194A/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
    • G01L19/08—Means for indicating or recording, e.g. for remote indication
    • G01L19/086—Means for indicating or recording, e.g. for remote indication for remote indication
    • 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
    • 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
    • G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
    • G01L7/04—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges

Landscapes

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

Abstract

558,194. Pressure gauges. CAMBRIDGE INSTRUMENT CO., Ltd., APTHORPE, W. H., and STALLAN, W. J. June 22, 1942, No. 8537. [Class 106 (ii)] Relates to pneumatic means for the remote indication of a variable wherein movement of a restrictor or the like in relation to a movable nozzle in accordance with variation of the variable is effected by direct means. In one form as applied to an indicator for temperature a Bourdon tube a, Fig. 1, secured to a block b, is connected by a pipe c with a thermometer bulb (not shown), the bulb, pipe and tube being filled with mercury. The free end of the tube a carries a restrictor plate d with an adjustable screw k arranged adjacent an outlet or nozzle e fitted to the free end of a Bourdon tube f. The fixed end of the tube f is connected by a duct g to a source of compressed air at predetermined pressure and to a pressure gauge (not shown) calibrated to indicate temperature. The position of the screw k in relation to the nozzle e determines the quantity of air escaping and consequently the pressure of the air applied to the pressure gauge which accordingly indicates the temperature. In a modified arrangement, Fig. 2, the thermometer bulb is connected by a pipe t to a bellows chamber m, the movable end of which has a plate d that coacts with a nozzle e on a pipe n rigid with the movable end of a second bellows p connected to a source of compressed air by way of a restricted passage r in a pipe q. The pipe extension s is connected to a pressure gauge.
GB853742A 1942-06-22 1942-06-22 Improvements in or relating to pneumatic means for the remote indication of a variable Expired GB558194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB853742A GB558194A (en) 1942-06-22 1942-06-22 Improvements in or relating to pneumatic means for the remote indication of a variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB853742A GB558194A (en) 1942-06-22 1942-06-22 Improvements in or relating to pneumatic means for the remote indication of a variable

Publications (1)

Publication Number Publication Date
GB558194A true GB558194A (en) 1943-12-24

Family

ID=9854345

Family Applications (1)

Application Number Title Priority Date Filing Date
GB853742A Expired GB558194A (en) 1942-06-22 1942-06-22 Improvements in or relating to pneumatic means for the remote indication of a variable

Country Status (1)

Country Link
GB (1) GB558194A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760509A (en) * 1952-10-31 1956-08-28 Honeywell Regulator Co Electropneumatic transducer apparatus
US3190553A (en) * 1962-08-08 1965-06-22 Sorteberg Johannes Automatic balanced weighbeam system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760509A (en) * 1952-10-31 1956-08-28 Honeywell Regulator Co Electropneumatic transducer apparatus
US3190553A (en) * 1962-08-08 1965-06-22 Sorteberg Johannes Automatic balanced weighbeam system

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