GB713371A - Magnet core - Google Patents

Magnet core

Info

Publication number
GB713371A
GB713371A GB9912/52A GB991252A GB713371A GB 713371 A GB713371 A GB 713371A GB 9912/52 A GB9912/52 A GB 9912/52A GB 991252 A GB991252 A GB 991252A GB 713371 A GB713371 A GB 713371A
Authority
GB
United Kingdom
Prior art keywords
april
magnet core
ges
electrolytically
akt
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
GB9912/52A
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta GmbH
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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of GB713371A publication Critical patent/GB713371A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/16—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/23—Gap features
    • G11B5/235—Selection of material for gap filler

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Magnetic Heads (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

713,371. Electromagnets. LOEWE OPTA AKT.-GES. April 21, 1952 [April 20, 1951], No. 9912/52. Class 35 A laminated core for an electromagnetic recording or reproducing head has a very narrow air gap produced by coating one or both of the opposite pole faces with cadmium by evaporation under vacuum, cathode splitting, or electrolytically.
GB9912/52A 1951-04-20 1952-04-21 Magnet core Expired GB713371A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL8817A DE893385C (en) 1951-04-20 1951-04-20 Process for the production of magnetic cores with a gap filled by a diamagnetic material, in particular for magnetic sound recording and reproduction

Publications (1)

Publication Number Publication Date
GB713371A true GB713371A (en) 1954-08-11

Family

ID=7257721

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9912/52A Expired GB713371A (en) 1951-04-20 1952-04-21 Magnet core

Country Status (2)

Country Link
DE (1) DE893385C (en)
GB (1) GB713371A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949681A (en) * 1958-01-04 1960-08-23 Knefeli Vitus Reckoner for demonstrating arithmetical calculations
US3079470A (en) * 1959-12-21 1963-02-26 Armour Res Found Magnetic transducer head

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961662C (en) * 1953-09-10 1957-04-11 Telefunken Gmbh Gap filling for magnetizing head
DE1002459B (en) * 1953-11-27 1957-02-14 Telefunken Gmbh Device for shielding magnetic fields
DE1114335B (en) * 1955-04-26 1961-09-28 Standard App Fabrik G M B H Magnetic head
DE1046797B (en) * 1956-10-17 1958-12-18 Telefunken Gmbh Magnetic core with a gap calibrated by an insert, in particular magnetic head for magnetic recording and / or playback of signals, e.g. B. for magnetic recorders

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949681A (en) * 1958-01-04 1960-08-23 Knefeli Vitus Reckoner for demonstrating arithmetical calculations
US3079470A (en) * 1959-12-21 1963-02-26 Armour Res Found Magnetic transducer head

Also Published As

Publication number Publication date
DE893385C (en) 1953-10-15

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