GB981428A - A magnetic force control system - Google Patents

A magnetic force control system

Info

Publication number
GB981428A
GB981428A GB2100961A GB2100961A GB981428A GB 981428 A GB981428 A GB 981428A GB 2100961 A GB2100961 A GB 2100961A GB 2100961 A GB2100961 A GB 2100961A GB 981428 A GB981428 A GB 981428A
Authority
GB
United Kingdom
Prior art keywords
path
flux
magnet
magnetic
arrangement
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
GB2100961A
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.)
VENTE D AIMANTS ALLEVARD UGINE
Original Assignee
VENTE D AIMANTS ALLEVARD UGINE
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 VENTE D AIMANTS ALLEVARD UGINE filed Critical VENTE D AIMANTS ALLEVARD UGINE
Publication of GB981428A publication Critical patent/GB981428A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • General Induction Heating (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

981,428. Magnetic fastenings; remotely operated fastenings. SOC. DE VENTE D'ARMANTS ALLEVARD-UGINE. June 9, 1961 [Sept. 12, 1960], No. 21009/61. Heading E2A. [Also in Divisions H1 and H2] An arrangement for diverting the magnetic flux of a magnet through one or other of two or more magnetic circuit paths comprises auxiliary magnet means included in at least one of said paths, and generating a controllable auxiliary magnetomotive force to produce a control flux through said one path which controls the distribution of the flux produced by the main magnet as between said magnetic circuit paths. Permanent magnet 1, Fig. 1 is provided with two magnetic circuit paths 2, 3, 4 and 2<SP>1</SP>, 3<SP>1</SP>, 4<SP>1</SP> respectively, part of the former path being surrounded by an electromagnet winding 5. If winding 5 is momentarily energized in such a magnitude and sense as to aid the magnetic flux passing through it from the magnet 1 and cancel out the flux in the path 2<SP>1</SP>, 3<SP>1</SP>, 4<SP>1</SP> then upon cessation of the energization the flux from magnet 1 will continue to flow through the path 2, 3, 4 rather than the path 2<SP>1</SP>, 3<SP>1</SP>, 4<SP>1</SP>. If, on the other hand, winding 5 is momentarily energized, so that the flux in path 2, 3, 4 is cancelled out and that in path 2<SP>1</SP>, 3<SP>1</SP>, 4<SP>1</SP> increased, then upon cessation of the energization the flux from magnet 1 will continue to flow through path 2<SP>1</SP>, 3<SP>1</SP>, 4<SP>1</SP> rather than the path 2, 3, 4. Magnet 1 may be an electromagnet, while the circuit element 3 may alternatively comprise a permanent magnet, the flux switching being performed by its movement in or out of circuit or by the removal of its magnetism by heating. The arrangement may be applied to a magnetic latching arrangement in which the movement of latch member 3, Fig. 3, is controlled by momentary currents passed through windings 5 on the limbs 2, 4. The latch member 3 is permanently biased to the open position by means of a weak spring 6. The arrangement may also be applied to a magnetic work table (see Divisions H1 and H2).
GB2100961A 1960-09-12 1961-06-09 A magnetic force control system Expired GB981428A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR838359A FR1274561A (en) 1960-09-12 1960-09-12 Method of command and control of a magnetic flux, device for its implementation, its applications and the products thus obtained

Publications (1)

Publication Number Publication Date
GB981428A true GB981428A (en) 1965-01-27

Family

ID=8738863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2100961A Expired GB981428A (en) 1960-09-12 1961-06-09 A magnetic force control system

Country Status (2)

Country Link
FR (1) FR1274561A (en)
GB (1) GB981428A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142374A (en) * 1983-05-12 1985-01-16 Chubb & Sons Lock & Safe Co Locking mechanism
GB2313485A (en) * 1996-05-24 1997-11-26 Renishaw Plc Magnetic retaining apparatus

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3165723A (en) * 1962-01-19 1965-01-12 Westinghouse Electric Corp Magnetic memory device
BE648393A (en) * 1963-05-24
US3262604A (en) * 1964-11-16 1966-07-26 Whirlpool Co Dispensing apparatus
IT1022923B (en) * 1974-10-16 1978-04-20 Cardone Magneto Tecnica MAGNETIC ANCHORING EQUIPMENT
US4242658A (en) * 1978-12-29 1980-12-30 International Business Machines Corporation Magnetic actuator using modulated flux

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142374A (en) * 1983-05-12 1985-01-16 Chubb & Sons Lock & Safe Co Locking mechanism
GB2313485A (en) * 1996-05-24 1997-11-26 Renishaw Plc Magnetic retaining apparatus

Also Published As

Publication number Publication date
DE1439088A1 (en) 1968-12-19
FR1274561A (en) 1961-10-27
DE1439088B2 (en) 1970-08-13

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