GB499219A - Improved electro-magnetic device for liquid level regulation - Google Patents

Improved electro-magnetic device for liquid level regulation

Info

Publication number
GB499219A
GB499219A GB2049037A GB2049037A GB499219A GB 499219 A GB499219 A GB 499219A GB 2049037 A GB2049037 A GB 2049037A GB 2049037 A GB2049037 A GB 2049037A GB 499219 A GB499219 A GB 499219A
Authority
GB
United Kingdom
Prior art keywords
liquid level
tube
coil
float
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
GB2049037A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2049037A priority Critical patent/GB499219A/en
Publication of GB499219A publication Critical patent/GB499219A/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
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/37—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of communicating tubes or reservoirs with movable fluid levels, e.g. by U-tubes
    • G01F1/372—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of communicating tubes or reservoirs with movable fluid levels, e.g. by U-tubes with electrical or electro-mechanical indication
    • 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
    • G01F23/72—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 magnetically actuated indicating means
    • G01F23/74—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 magnetically actuated indicating means for sensing changes in level only at discrete points

Landscapes

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

Abstract

499,219. Automatic control systems. STERN, W. July 24, 1937, No. 20490. [Class 38 (iv)] Fluid pressure; fluid flow.-A float 1 formed wholly or partially of ferromagnetic material is arranged to float on the surface of a liquid in a tube 2, a coil 8 arranged to surround the tube 2 having a condenser 10 arranged in series or parallel therewith so that at a predetermined position of the liquid level in 2 carrying the core 1 resonance takes place and the variation of the current produced thereby causes relay coil 15 to effect operation of means for controlling the liquid level. The means may comprise a contact member 18 released by the coil 15 when resonance occurs to open the circuit of a motor 6 driving a pump supplying pressure oil to the container 5 of a hydraulic press to which the tube 2 is connected. The indicating instrument 14 gives an indication of the liquid level and may be arranged to make and break the circuits of signalling devices or may be used instead of the relay coil 15. The part of the tube 2 adjacent to the coil 8 is made of non- magnetic material. One or more additional coils 8<1> may be arranged on the tube 2 and may be associated with the instrument 14 and with the relay 15 or may be connected with different instruments and with further relays for controlling the liquid level regulating means. The Specification describes arrangements in which the liquid level is respectively arranged to be dependent on the pressure in a cylinder, the pressure relationship between two containers, and the rate of flow of a fluid in a pipe line which are controlled by the means energized on the occurrence of resonance produced when the ferromagnetic float passes into the coil or one of the coils surrounding the tube in which it floats.
GB2049037A 1937-07-24 1937-07-24 Improved electro-magnetic device for liquid level regulation Expired GB499219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2049037A GB499219A (en) 1937-07-24 1937-07-24 Improved electro-magnetic device for liquid level regulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2049037A GB499219A (en) 1937-07-24 1937-07-24 Improved electro-magnetic device for liquid level regulation

Publications (1)

Publication Number Publication Date
GB499219A true GB499219A (en) 1939-01-20

Family

ID=10146745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2049037A Expired GB499219A (en) 1937-07-24 1937-07-24 Improved electro-magnetic device for liquid level regulation

Country Status (1)

Country Link
GB (1) GB499219A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433599A (en) * 1942-12-31 1947-12-30 Wheelco Instr Company Control apparatus
US2472389A (en) * 1943-09-17 1949-06-07 Wurlitzer Co Float control for liquid dispensing devices
DE968497C (en) * 1949-05-04 1958-02-27 Gen Electric Temperature-dependent monitoring device
DE2936890A1 (en) * 1978-09-15 1980-03-27 Matsushita Electric Works Ltd TEMPERATURE CONTROL FOR ELECTRIC SURFACE HEATING

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433599A (en) * 1942-12-31 1947-12-30 Wheelco Instr Company Control apparatus
US2472389A (en) * 1943-09-17 1949-06-07 Wurlitzer Co Float control for liquid dispensing devices
DE968497C (en) * 1949-05-04 1958-02-27 Gen Electric Temperature-dependent monitoring device
DE2936890A1 (en) * 1978-09-15 1980-03-27 Matsushita Electric Works Ltd TEMPERATURE CONTROL FOR ELECTRIC SURFACE HEATING

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