GB539969A - Improvements in electrical apparatus for indicating liquid levels - Google Patents

Improvements in electrical apparatus for indicating liquid levels

Info

Publication number
GB539969A
GB539969A GB1140440A GB1140440A GB539969A GB 539969 A GB539969 A GB 539969A GB 1140440 A GB1140440 A GB 1140440A GB 1140440 A GB1140440 A GB 1140440A GB 539969 A GB539969 A GB 539969A
Authority
GB
United Kingdom
Prior art keywords
float
clamping member
resistance element
electrical apparatus
liquid levels
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
GB1140440A
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.)
Evershed and Vignoles Ltd
Simmonds Aerocessories Inc
Original Assignee
Evershed and Vignoles Ltd
Simmonds Aerocessories Inc
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 Evershed and Vignoles Ltd, Simmonds Aerocessories Inc filed Critical Evershed and Vignoles Ltd
Priority to GB1140440A priority Critical patent/GB539969A/en
Publication of GB539969A publication Critical patent/GB539969A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

539,969. Electric signalling systems. EVERSHED & VIGNOLES, Ltd., SIMMONDS AEROCESSORIES Ltd., and MARCHMENT, W. T. July 8, 1940, No. 11404. Addition to 512,975. Drawings to Specification. [Class 40 (i)] In modifications of the liquid-level indicating apparatus of the parent Specification, the vertical bar which acts as a clamping member is made of curved or angular section so that it serves as a guide for the float, there being no separate guide casing. The clamping member may be moved to bring the float into contact with the resistance element by an electromagnet or a Bowden wire as in the prior arrangements, or the clamping member may be fixed and the resistance element movable. The float may co-operate with two parallel resistance elements connected in separate circuits so that the resistances therein are varied in opposite senses. The Provisional Specification refers to a further modification in which the float is of dumb-bell form with its stem located between the clamping member and the resistance element.
GB1140440A 1940-07-08 1940-07-08 Improvements in electrical apparatus for indicating liquid levels Expired GB539969A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1140440A GB539969A (en) 1940-07-08 1940-07-08 Improvements in electrical apparatus for indicating liquid levels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1140440A GB539969A (en) 1940-07-08 1940-07-08 Improvements in electrical apparatus for indicating liquid levels

Publications (1)

Publication Number Publication Date
GB539969A true GB539969A (en) 1941-09-30

Family

ID=9985602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1140440A Expired GB539969A (en) 1940-07-08 1940-07-08 Improvements in electrical apparatus for indicating liquid levels

Country Status (1)

Country Link
GB (1) GB539969A (en)

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