GB708134A - Improvements in or relating to magnetic bodies comprising a highly-permeable part and a thin permanent magnet - Google Patents

Improvements in or relating to magnetic bodies comprising a highly-permeable part and a thin permanent magnet

Info

Publication number
GB708134A
GB708134A GB20139/51A GB2013951A GB708134A GB 708134 A GB708134 A GB 708134A GB 20139/51 A GB20139/51 A GB 20139/51A GB 2013951 A GB2013951 A GB 2013951A GB 708134 A GB708134 A GB 708134A
Authority
GB
United Kingdom
Prior art keywords
permanent magnet
core
highly
relating
group xxxv
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
GB20139/51A
Other languages
English (en)
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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
Application filed by Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB708134A publication Critical patent/GB708134A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01F29/146—Constructional details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
    • H01F1/0311—Compounds
    • H01F1/0313—Oxidic compounds
    • H01F1/0315—Ferrites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Soft Magnetic Materials (AREA)
  • Coils Or Transformers For Communication (AREA)
GB20139/51A 1951-04-23 1951-08-27 Improvements in or relating to magnetic bodies comprising a highly-permeable part and a thin permanent magnet Expired GB708134A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL314201X 1951-04-23
CH311959T 1951-08-27

Publications (1)

Publication Number Publication Date
GB708134A true GB708134A (en) 1954-04-28

Family

ID=25735858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20139/51A Expired GB708134A (en) 1951-04-23 1951-08-27 Improvements in or relating to magnetic bodies comprising a highly-permeable part and a thin permanent magnet

Country Status (6)

Country Link
US (1) US2724075A (en:Method)
BE (1) BE505466A (en:Method)
CH (1) CH314201A (en:Method)
FR (1) FR1041524A (en:Method)
GB (1) GB708134A (en:Method)
NL (1) NL79888C (en:Method)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869050A (en) * 1952-01-04 1959-01-13 Magnetic circuits
BE520381A (en:Method) * 1952-06-03
DE1014244B (de) * 1953-03-21 1957-08-22 Philips Nv Durch Dauermagneten vormagnetisierter ferromagnetischer Spulenkern
US2802140A (en) * 1953-06-26 1957-08-06 Motorola Inc Television receiver size control
NL199308A (en:Method) * 1954-08-04
US2914714A (en) * 1955-02-23 1959-11-24 Warner Electric Brake & Clutch Permanent magnet torque producing device
DE1119412B (de) * 1955-11-22 1961-12-14 Siemens Ag Magnetvariometer
US2854273A (en) * 1956-06-11 1958-09-30 Westinghouse Electric Corp Magnetic holding device
US2866953A (en) * 1956-06-29 1958-12-30 Gen Electric Mechanical-electrical transducers
US3095525A (en) * 1958-01-20 1963-06-25 Crucible Steel Co America Permanent magnet assembly
NL111820C (en:Method) * 1958-10-28
DE1230133B (de) * 1959-12-24 1966-12-08 Trafo Spulenwickelei Und Appba Einrichtung in Fernsehgeraeten zur Einstellung einer zeitproportionalen magnetischen Ablenkung
US3256467A (en) * 1962-09-24 1966-06-14 Kjellstrom Axel Bertilsson Methods and arrangements to influence and control charges
US3624572A (en) * 1970-04-30 1971-11-30 Ampex Magnets for generating spatially varying magnetic fields
DE2607197C3 (de) 1976-02-23 1979-09-20 Heinrich Dr.-Ing. 4714 Selm Spodig Unabgeschirmtes dauermagnetisches Doppeljochsystem
DE2660210C2 (de) * 1976-02-23 1985-08-01 Heinrich Dr.-Ing. 4714 Selm Spodig Anwendung eines unabgeschirmten dauermagnetischen Doppeljochsystems für Separierzwecke
DE3166748D1 (en) * 1980-02-20 1984-11-29 Ducellier & Cie Ignition coil for internal-combustion engines
FR2481753A2 (fr) * 1980-04-30 1981-11-06 Ducellier & Cie Bobine d'allumage pour moteurs a combustion interne

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2000378A (en) * 1929-07-15 1935-05-07 Thos E Stone Jr Adjusting effective incremental permeability of magnetic circuits
US1896510A (en) * 1930-06-28 1933-02-07 Bell Telephone Labor Inc Adjustable inductance
US2466028A (en) * 1940-08-02 1949-04-05 Raytheon Mfg Co Controlled peaking transformer
US2503155A (en) * 1948-05-18 1950-04-04 Rca Corp Variable inductance device

Also Published As

Publication number Publication date
US2724075A (en) 1955-11-15
FR1041524A (fr) 1953-10-23
BE505466A (en:Method)
NL79888C (en:Method)
CH314201A (de) 1956-05-31

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