GB816073A - Improvements in and relating to aneroid barometers - Google Patents

Improvements in and relating to aneroid barometers

Info

Publication number
GB816073A
GB816073A GB2687356A GB2687356A GB816073A GB 816073 A GB816073 A GB 816073A GB 2687356 A GB2687356 A GB 2687356A GB 2687356 A GB2687356 A GB 2687356A GB 816073 A GB816073 A GB 816073A
Authority
GB
United Kingdom
Prior art keywords
pressure
micrometer
casing
screen
contact
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
GB2687356A
Inventor
John Everard Grandidge
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.)
Mechanism Ltd
Original Assignee
Mechanism Ltd
Filing date
Publication date
Application filed by Mechanism Ltd filed Critical Mechanism Ltd
Publication of GB816073A publication Critical patent/GB816073A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00Details 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
    • G01L19/08Means for indicating or recording, e.g. for remote indication
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0082Transmitting or indicating the displacement of capsules by electric, electromechanical, magnetic, or electromechanical means

Landscapes

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

Abstract

816,073. Pressure gauges. MECHANISM Ltd. Sept. 3, 1957 [Sept. 3, 1956], No. 26873/56. Class 106 (2). A pressure-gauge comprises a pressuresensitive capsule 1, a spring-loaded contactcarrying member 5 displaceable by the capsule 1, a micrometer 16 carrying a contact 13, and an electronic circuit, not shown, incorporating a cathode-ray tuning indicator of the type having a fluorescent anode, the making and breaking of the contacts 8, 13 sharply varying the pattern viewed. on the screen of the cathode-ray indicator. The micrometer 16 is graduated in millibars and is used to adjust the position of contact 13 relatively to the contact 8 carried by the spring-loaded lever 5. The apparatus is enclosed in a casing 20 provided with a window for viewing the screen and with a nipple 18 for connection to a pressure source. In operation, the micrometer 16 is adjusted as required until the pattern viewed on the screen is just on the point of changing, and the pressure read from the graduations on the micrometer. For calibration, the nipple 18 is connected to a source at a standard pressure, but in normal use it is left unconnected, thus equalizing the pressure inside the casing 20 with the ambient atmospheric pressure. Excessive expansion of the capsules 1 is prevented by a plate 22 secured to the casing 20.
GB2687356A 1956-09-03 Improvements in and relating to aneroid barometers Expired GB816073A (en)

Publications (1)

Publication Number Publication Date
GB816073A true GB816073A (en) 1959-07-08

Family

ID=1740277

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2687356A Expired GB816073A (en) 1956-09-03 Improvements in and relating to aneroid barometers

Country Status (1)

Country Link
GB (1) GB816073A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1247697B (en) * 1962-11-06 1967-08-17 Appleby & Ireland Ltd Aneroid barometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1247697B (en) * 1962-11-06 1967-08-17 Appleby & Ireland Ltd Aneroid barometer

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