SE323818C - Method of making two-piece composite headphone assemblies for magnetophone heads - Google Patents

Method of making two-piece composite headphone assemblies for magnetophone heads

Info

Publication number
SE323818C
SE323818C SE347762A SE347762A SE323818C SE 323818 C SE323818 C SE 323818C SE 347762 A SE347762 A SE 347762A SE 347762 A SE347762 A SE 347762A SE 323818 C SE323818 C SE 323818C
Authority
SE
Sweden
Prior art keywords
magnetophone
heads
making
piece composite
headphone assemblies
Prior art date
Application number
SE347762A
Other languages
Swedish (sv)
Other versions
SE323818B (en
Inventor
S Duinker
J Bos
M J J Schoones
Original Assignee
Philips Nv
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 Nv filed Critical Philips Nv
Publication of SE323818B publication Critical patent/SE323818B/en
Publication of SE323818C publication Critical patent/SE323818C/en

Links

Classifications

    • 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
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49055—Fabricating head structure or component thereof with bond/laminating preformed parts, at least two magnetic

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
SE347762A 1961-03-30 1962-03-28 Method of making two-piece composite headphone assemblies for magnetophone heads SE323818C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL263099 1961-03-30

Publications (2)

Publication Number Publication Date
SE323818B SE323818B (en) 1970-05-11
SE323818C true SE323818C (en) 1972-05-23

Family

ID=19752954

Family Applications (1)

Application Number Title Priority Date Filing Date
SE347762A SE323818C (en) 1961-03-30 1962-03-28 Method of making two-piece composite headphone assemblies for magnetophone heads

Country Status (8)

Country Link
US (1) US3233308A (en)
AT (1) AT242389B (en)
CH (1) CH415091A (en)
DK (1) DK104577C (en)
ES (1) ES275904A1 (en)
GB (1) GB996957A (en)
NL (1) NL263099A (en)
SE (1) SE323818C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL289671A (en) * 1963-03-01
NL8200531A (en) * 1982-02-12 1983-09-01 Philips Nv MAGNETIC HEAD WITH PARTIALLY CREATED WRAP OPENING.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933565A (en) * 1953-04-15 1960-04-19 Siemens Ag Magnetic transducers
US2915812A (en) * 1953-04-21 1959-12-08 Rca Corp Method of constructing magnetic heads
DE1031020B (en) * 1953-09-07 1958-05-29 Telefunken Gmbh Magnetizing head for magnetic recorders
GB852533A (en) * 1956-07-26 1960-10-26 Philips Electrical Ind Ltd Improvements relating to magnetic recording and reproducing heads
US3094772A (en) * 1956-07-26 1963-06-25 Philips Corp Method of producing magnetic heads with accurately predetermined gap heights
GB827335A (en) * 1957-07-26 1960-02-03 British Broadcasting Corp Improvements in magnetic recording and reproducing heads
US3104455A (en) * 1959-08-10 1963-09-24 Clevite Corp Method of manufacturing magnetic transducer head
US3079470A (en) * 1959-12-21 1963-02-26 Armour Res Found Magnetic transducer head

Also Published As

Publication number Publication date
SE323818B (en) 1970-05-11
NL263099A (en)
CH415091A (en) 1966-06-15
ES275904A1 (en) 1963-01-01
GB996957A (en) 1965-06-30
US3233308A (en) 1966-02-08
AT242389B (en) 1965-09-10
DK104577C (en) 1966-06-06

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