GB924994A - Improvements in and relating to mercurial barometers - Google Patents

Improvements in and relating to mercurial barometers

Info

Publication number
GB924994A
GB924994A GB922860A GB922860A GB924994A GB 924994 A GB924994 A GB 924994A GB 922860 A GB922860 A GB 922860A GB 922860 A GB922860 A GB 922860A GB 924994 A GB924994 A GB 924994A
Authority
GB
United Kingdom
Prior art keywords
mercury
march
tubes
piston
barometers
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
GB922860A
Inventor
Charles Henry Drewell
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.)
CHARLES HENRY DREWELL
SCIENT INSTR GLASGOW Ltd
Original Assignee
CHARLES HENRY DREWELL
SCIENT INSTR GLASGOW 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 CHARLES HENRY DREWELL, SCIENT INSTR GLASGOW Ltd filed Critical CHARLES HENRY DREWELL
Priority to GB922860A priority Critical patent/GB924994A/en
Publication of GB924994A publication Critical patent/GB924994A/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

Landscapes

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

Abstract

924,994. Mercury barometers. SCIENTIFIC INSTRUMENTS (GLASGOW) Ltd., and C. H. DREWELL. March 13, 1961 [March 16, 1960], No. 9228/60. Class 106 (2). The column of mercury in a mercury barometer is contained in a short upper closed glass tube 31 and a longer plastic tube 11 extending into a mercury chamber 15 having a fiducial point 16 and a piston 17 movable by screw 21 to adjust the mercury level, the tubes being supported centrally within an outer transparent plastic casing 10 by flanges 13, 14, 12 and a bush 29. A baffle-plate 28 deflects air bubbles into the annular space 30. Air trapped in the mercury chamber 15 can escape by way of leather plugs 24 and 18 through an outlet passage 25 and a passage formed by a flattened part 20 of a threaded stud 19 in the piston 17. The latter and the boss 29 make sealing contact with the tubes by means of 0-rings.
GB922860A 1960-03-16 1960-03-16 Improvements in and relating to mercurial barometers Expired GB924994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB922860A GB924994A (en) 1960-03-16 1960-03-16 Improvements in and relating to mercurial barometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB922860A GB924994A (en) 1960-03-16 1960-03-16 Improvements in and relating to mercurial barometers

Publications (1)

Publication Number Publication Date
GB924994A true GB924994A (en) 1963-05-01

Family

ID=9867878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB922860A Expired GB924994A (en) 1960-03-16 1960-03-16 Improvements in and relating to mercurial barometers

Country Status (1)

Country Link
GB (1) GB924994A (en)

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