GB937713A - Improvements relating to magnetic devices responsive to varying liquid levels - Google Patents

Improvements relating to magnetic devices responsive to varying liquid levels

Info

Publication number
GB937713A
GB937713A GB1645161A GB1645161A GB937713A GB 937713 A GB937713 A GB 937713A GB 1645161 A GB1645161 A GB 1645161A GB 1645161 A GB1645161 A GB 1645161A GB 937713 A GB937713 A GB 937713A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
magnet
switch
member
arm
rocking
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
GB1645161A
Inventor
Herbert Bernard Thomas
Michael George Mann
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.)
RONALD TRIST AND CO Ltd
Original Assignee
RONALD TRIST AND CO 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

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
    • G01F23/30Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm by floats
    • G01F23/56Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm by floats using elements rigidly fixed to and rectilinearly moving with the floats as transmission elements

Abstract

937,713. Magnetic switches. RONALD TRIST & CO. Ltd. May 7, 1962 [May 5, 1961], No. 16451/61. Class 38 (5). [Also in Groups XIII and XVIII] In a magnetic switching device as described in Specification 765,708, the mercury switch 17 is mounted on a rocking member 14 connected to the driven magnet 8 to rock with it but limited in its rocking movement by stops 18, 19, the connection between member 14 and magnet 8 being adjustable so that while the angle through which member 14 rocks remains constant the angle of rocking of magnet 8 can be varied. Member 14 is a bell-crank with the switch 17 on one arm and a slotted arm 13, and the frame 9 of magnet 8 has a slotted arm 12 overlapping arm 13 and connected to it by a pin 15 and slide 16 providing the adjustable connection. The lower arm of bell-crank 14 carries a third magnet 28 which is in magnetic repulsion with the driving magnet 5 so that when magnet 5 is in its lowest position C the switch 17 is closed. In normal operation when the driving magnet 5 is in position A, switch 17 is open, and when magnet 5 moves to position B the switch is closed, switch 17 being in the electric circuit of a liquid supply pump for a boiler in which the liquid level is controlled (see Groups XIII and XVIII).
GB1645161A 1961-05-05 1961-05-05 Improvements relating to magnetic devices responsive to varying liquid levels Expired GB937713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1645161A GB937713A (en) 1961-05-05 1961-05-05 Improvements relating to magnetic devices responsive to varying liquid levels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1645161A GB937713A (en) 1961-05-05 1961-05-05 Improvements relating to magnetic devices responsive to varying liquid levels

Publications (1)

Publication Number Publication Date
GB937713A true true GB937713A (en) 1963-09-25

Family

ID=10077555

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1645161A Expired GB937713A (en) 1961-05-05 1961-05-05 Improvements relating to magnetic devices responsive to varying liquid levels

Country Status (1)

Country Link
GB (1) GB937713A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010080809A1 (en) * 2009-01-06 2010-07-15 Veeder-Root Company Magnetostrictive liquid density detector
US8601867B2 (en) 2010-07-26 2013-12-10 Veeder-Root Company Magnetostrictive probe having phase separation float assembly
US8656774B2 (en) 2009-11-24 2014-02-25 Veeder-Root Company Phase separation detector for fuel storage tank

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010080809A1 (en) * 2009-01-06 2010-07-15 Veeder-Root Company Magnetostrictive liquid density detector
CN102341689A (en) * 2009-01-06 2012-02-01 维德-鲁特公司 Magnetostrictive liquid density detector
US8539828B2 (en) 2009-01-06 2013-09-24 Veeder-Root Company Magnetostrictive liquid density detector
US8656774B2 (en) 2009-11-24 2014-02-25 Veeder-Root Company Phase separation detector for fuel storage tank
US8601867B2 (en) 2010-07-26 2013-12-10 Veeder-Root Company Magnetostrictive probe having phase separation float assembly

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