GB552709A - Improvements in or relating to manometers - Google Patents

Improvements in or relating to manometers

Info

Publication number
GB552709A
GB552709A GB1107141A GB1107141A GB552709A GB 552709 A GB552709 A GB 552709A GB 1107141 A GB1107141 A GB 1107141A GB 1107141 A GB1107141 A GB 1107141A GB 552709 A GB552709 A GB 552709A
Authority
GB
United Kingdom
Prior art keywords
bell
manometers
pointer
pivoted
gases
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
GB1107141A
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.)
Pilkington Group Ltd
Original Assignee
Pilkington Brothers 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 Pilkington Brothers Ltd filed Critical Pilkington Brothers Ltd
Priority to GB1107141A priority Critical patent/GB552709A/en
Publication of GB552709A publication Critical patent/GB552709A/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
    • G01L7/24—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 balances in the form of rings partly filled with liquid

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

552,709. Manometers. PILKINGTON BROS., Ltd., and JOLLIE, A. Aug. 29, 1941, No. 11071. [Class 106 (ii)] The invention relates to manometers and is directed towards measuring very small pressure variations in gases. A bell 1 of elongated rectangular shape is pivoted on knife-edge bearing 2, and the walls dip into a sealing liquid 5 in a trough 6 so as to enclose a space into which the gas whose pressure is to be measured is introduced by pipe 8. Movement of the bell is transmitted through link 10 and lever 11 pivoted on knife edge 17 to a -magnifying pointer .23. The pointer may be arranged to carry a pen movable over a clock-driven recording sheet. Alternatively the indicating means may comprise a mirror with lamp and scale. The weight off the bell is approximately balanced by the buoyancy of the sealing liquid, weight 13 and adjustable spring 14, which is so long that its tension is not materially affected by the small movements of the bell, and which serves to adjust the zero. Adjustable weights 16, 18 mounted respectively verticaiy below and above pivot 17 are provided for varying the counterbalancing torque and hence the sensitivity of the apparatus. For comparing the pressures of two gases, the apparatus is enclosed as shown, and the second gas is introduced by pipe 22.
GB1107141A 1941-08-29 1941-08-29 Improvements in or relating to manometers Expired GB552709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1107141A GB552709A (en) 1941-08-29 1941-08-29 Improvements in or relating to manometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1107141A GB552709A (en) 1941-08-29 1941-08-29 Improvements in or relating to manometers

Publications (1)

Publication Number Publication Date
GB552709A true GB552709A (en) 1943-04-21

Family

ID=9979467

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1107141A Expired GB552709A (en) 1941-08-29 1941-08-29 Improvements in or relating to manometers

Country Status (1)

Country Link
GB (1) GB552709A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2703799A1 (en) * 2012-08-30 2014-03-05 Freescale Semiconductor, Inc. Pressure sensor with differential capacitive output

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2703799A1 (en) * 2012-08-30 2014-03-05 Freescale Semiconductor, Inc. Pressure sensor with differential capacitive output
CN103674412A (en) * 2012-08-30 2014-03-26 飞思卡尔半导体公司 Pressure sensor with differential capacitive output
US9290067B2 (en) 2012-08-30 2016-03-22 Freescale Semiconductor, Inc. Pressure sensor with differential capacitive output
US10107701B2 (en) 2012-08-30 2018-10-23 Nxp Usa, Inc. Pressure sensor with differential capacitive output

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