GB1236356A - An improved control mechanism - Google Patents

An improved control mechanism

Info

Publication number
GB1236356A
GB1236356A GB0884/70A GB188470A GB1236356A GB 1236356 A GB1236356 A GB 1236356A GB 0884/70 A GB0884/70 A GB 0884/70A GB 188470 A GB188470 A GB 188470A GB 1236356 A GB1236356 A GB 1236356A
Authority
GB
United Kingdom
Prior art keywords
magnet
stops
magnetic
stem
magnets
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
GB0884/70A
Inventor
Martin Bekedam
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
Priority to US682222A priority Critical patent/US3504316A/en
Application filed by Individual filed Critical Individual
Priority to GB0884/70A priority patent/GB1236356A/en
Priority to DE19702001600 priority patent/DE2001600A1/en
Priority to FR7003198A priority patent/FR2076830A5/fr
Priority to BE746388D priority patent/BE746388A/en
Publication of GB1236356A publication Critical patent/GB1236356A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G01F23/56—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 elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
    • 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
    • H01H36/0073—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 relative movement between two magnets

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

1,236,356. Magnetic switches. M. BEKEDAM. 14 Jan., 1970, No. 1884/70. Heading H1N. The operating mechanism of a float operated switch has an axially movable stem G on which is mounted a pair of spaced disc magnets H, J polarized in the same direction and each with opposite faces of opposite polarity and a pivoted magnet P is mounted for movement between stops R, T so as to be between the planes of the discs H, and so that the magnet P is always biased to engage one or other of the stops by the magnetic fields of the magnets. The magnet P is mounted on a counterbalanced frame L pivoted at 22 on an adjustable platform Q and the frame L may carry a mercury-switch M or operate a microswitch (not shown). A spring 14 may compensate for the weight of the stem G and float K. The stops R and T are adjustable and are also magnetic so as to retain the magnet P and provide snap-action. In an alternative arrangement (Fig. 6, not shown) the stops are non-magnetic and a further central disc magnet is mounted on the stem G between the other two and is polarized in the opposite direction to the other disc magnets.
GB0884/70A 1967-11-13 1970-01-14 An improved control mechanism Expired GB1236356A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US682222A US3504316A (en) 1967-11-13 1967-11-13 Reciprocating magnetic means for operating snap action mercury switch
GB0884/70A GB1236356A (en) 1967-11-13 1970-01-14 An improved control mechanism
DE19702001600 DE2001600A1 (en) 1967-11-13 1970-01-15 Control device
FR7003198A FR2076830A5 (en) 1967-11-13 1970-01-29
BE746388D BE746388A (en) 1967-11-13 1970-02-23 FLOAT REMOTE CONTROL DEVICE

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US68222267A 1967-11-13 1967-11-13
GB0884/70A GB1236356A (en) 1967-11-13 1970-01-14 An improved control mechanism
DE19702001600 DE2001600A1 (en) 1967-11-13 1970-01-15 Control device
FR7003198A FR2076830A5 (en) 1967-11-13 1970-01-29

Publications (1)

Publication Number Publication Date
GB1236356A true GB1236356A (en) 1971-06-23

Family

ID=27431007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0884/70A Expired GB1236356A (en) 1967-11-13 1970-01-14 An improved control mechanism

Country Status (5)

Country Link
US (1) US3504316A (en)
BE (1) BE746388A (en)
DE (1) DE2001600A1 (en)
FR (1) FR2076830A5 (en)
GB (1) GB1236356A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001533A (en) * 1975-01-20 1977-01-04 Robert M. Keener Sealed level control switch for sump pumps
US5224379A (en) * 1992-10-14 1993-07-06 The Kelch Corporation Float activated gauge
US6202676B1 (en) * 1999-02-16 2001-03-20 Martin Bekedam Magnetic liquid control for boiler feedwater receivers
US8405477B2 (en) * 2008-02-22 2013-03-26 University Of Exeter Controllable magnetic systems
FR2950042B1 (en) * 2009-09-17 2012-01-13 Commissariat Energie Atomique METHOD FOR MANUFACTURING A MICROPARTICLE AND MICROPARTICLE THUS MANUFACTURED
US10513425B1 (en) * 2015-07-14 2019-12-24 Food Equipment Technologies Company, Inc. Beverage dispenser with universal portable top-mounted beverage condition status light indicator, universal portable top-mounted beverage condition status light indicator and method
EP3405632B1 (en) * 2016-01-19 2020-11-04 C&D Zodiac, Inc. Magnetic switch with maintenance override
CN108387287B (en) * 2018-02-07 2020-08-21 中国原子能科学研究院 Float-type high-temperature sodium-potassium alloy liquid level meter
CN111076795A (en) * 2020-02-19 2020-04-28 温州市凯纹电子科技有限公司 River water level measuring and alarming device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790459A (en) * 1953-01-06 1957-04-30 Trist & Co Ltd Ronald Relay mechanism
US3167694A (en) * 1961-03-06 1965-01-26 Bekedam Martin Permanent magnet sensing element of limited rotation operating snap action electric switches

Also Published As

Publication number Publication date
DE2001600A1 (en) 1971-07-22
BE746388A (en) 1970-08-24
FR2076830A5 (en) 1971-10-15
US3504316A (en) 1970-03-31

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