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GB724125A - Improvements in or relating to float-operated electric switches - Google Patents

Improvements in or relating to float-operated electric switches

Info

Publication number
GB724125A
GB724125A GB1399952A GB1399952A GB724125A GB 724125 A GB724125 A GB 724125A GB 1399952 A GB1399952 A GB 1399952A GB 1399952 A GB1399952 A GB 1399952A GB 724125 A GB724125 A GB 724125A
Authority
GB
United Kingdom
Prior art keywords
float
switch
arm
magnet
plunger
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
GB1399952A
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.)
FRANK BROOKESMITH
Mission Systems Wimborne Ltd
Original Assignee
FRANK BROOKESMITH
Flight Refuelling 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
Priority to FR1080837D priority Critical patent/FR1080837A/en
Application filed by FRANK BROOKESMITH, Flight Refuelling Ltd filed Critical FRANK BROOKESMITH
Priority to GB1399952A priority patent/GB724125A/en
Publication of GB724125A publication Critical patent/GB724125A/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
    • G01F23/32—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 using rotatable arms or other pivotable transmission elements
    • G01F23/38—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 using rotatable arms or other pivotable transmission elements using magnetically actuated indicating means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet

Landscapes

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

Abstract

724,125. Magnetic switches. FLIGHT REFUELLING, Ltd., BROOKESMITH, F., and MACGREGOR, P. S. Feb. 16, 1955 [June 3, 1952], No. 13999/52. Class 38 (5). A float-operated switch mechanism comprises a non-magnetic partition 10 pivotally supporting at 12 an arm 13 of a depending float (Fig. 1, not shown). The arm 13 adjustably carries an armature 41 influenced by a magnet 27 mounted on one arm of a two-armed lever 23, 24 pivotally mounted at 18 on a lug 16 on the other side of the partition 10. The lever is balanced by a counterweight 32 and has a screw 30 for operating the plunger 31 of a micro-switch 21 fixed to the lug 16. When the float is in its lowest position (Fig. 2) the armature 41 is against the partition 10 whereby the magnet 27 is attracted thereto and the screw 30 operates the switch plunger 31. When the float is raised by the liquid the arm 13 is rotated counter-clockwise so that the armature moves away from the magnet whereby the latter is released and a spring within the switch 21 projects the plunger 31 and the switch is restored.
GB1399952A 1955-02-16 1955-02-16 Improvements in or relating to float-operated electric switches Expired GB724125A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1080837D FR1080837A (en) 1955-02-16 1953-05-29 Improvements to electrical switches, actuated by float
GB1399952A GB724125A (en) 1955-02-16 1955-02-16 Improvements in or relating to float-operated electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1399952A GB724125A (en) 1955-02-16 1955-02-16 Improvements in or relating to float-operated electric switches

Publications (1)

Publication Number Publication Date
GB724125A true GB724125A (en) 1955-02-16

Family

ID=10033174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1399952A Expired GB724125A (en) 1955-02-16 1955-02-16 Improvements in or relating to float-operated electric switches

Country Status (2)

Country Link
FR (1) FR1080837A (en)
GB (1) GB724125A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2751381A1 (en) * 1996-07-22 1998-01-23 Ksb Sa COMMAND TO START UP A SUBMERSIBLE PUMP

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2751381A1 (en) * 1996-07-22 1998-01-23 Ksb Sa COMMAND TO START UP A SUBMERSIBLE PUMP
EP0821165A1 (en) * 1996-07-22 1998-01-28 Ksb S.A. Control device for starting and stopping a submersible pump

Also Published As

Publication number Publication date
FR1080837A (en) 1954-12-14

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