GB1355741A - Multiple track single gap magnetic heads - Google Patents

Multiple track single gap magnetic heads

Info

Publication number
GB1355741A
GB1355741A GB2543972A GB2543972A GB1355741A GB 1355741 A GB1355741 A GB 1355741A GB 2543972 A GB2543972 A GB 2543972A GB 2543972 A GB2543972 A GB 2543972A GB 1355741 A GB1355741 A GB 1355741A
Authority
GB
United Kingdom
Prior art keywords
magnetic heads
portions
gap magnetic
multiple track
single gap
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
GB2543972A
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.)
Magnetic Head Corp
Original Assignee
Magnetic Head Corp
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 Magnetic Head Corp filed Critical Magnetic Head Corp
Publication of GB1355741A publication Critical patent/GB1355741A/en
Expired legal-status Critical Current

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
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
    • G11B5/295—Manufacture
    • 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
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49041—Fabricating head structure or component thereof including measuring or testing with significant slider/housing shaping or treating
    • 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
    • Y10T29/49059—Fabricating head structure or component thereof with bond/laminating preformed parts, at least two magnetic with work positioning means

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

1355741 Magnetic heads MAGNETIC HEAD CORP 31 May 1972 [25 June 1971] 25439/72 Heading G5R Two multi-element magnetic heads are simultaneously formed by mounting magnetic core members 18 in slots 14 in each of two housing sections 10, 12, the members 18 including C- shaped wound portions 20 and I-shaped non- wound portions 22, and then assembling the sections 10, 12, as arrowed, with I-portions in one mating with C-portions in the other. Slicing the assembly along the now-common channel region 26 separates the two heads.
GB2543972A 1971-06-25 1972-05-31 Multiple track single gap magnetic heads Expired GB1355741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15680971A 1971-06-25 1971-06-25

Publications (1)

Publication Number Publication Date
GB1355741A true GB1355741A (en) 1974-06-05

Family

ID=22561180

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2543972A Expired GB1355741A (en) 1971-06-25 1972-05-31 Multiple track single gap magnetic heads

Country Status (7)

Country Link
US (1) US3678576A (en)
JP (1) JPS5213736B1 (en)
BE (1) BE786701A (en)
DE (1) DE2227372A1 (en)
FR (1) FR2143016A1 (en)
GB (1) GB1355741A (en)
NL (1) NL7208135A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3737992A (en) * 1972-06-09 1973-06-12 Magnetic Head Corp Method of manufacturing multiple track, dual gap magnetic heads
FR2588989A1 (en) * 1985-10-23 1987-04-24 Bull Sa METHOD FOR MANUFACTURING A MAGNETIC TRANSDUCER HAVING MULTIPLE HEADS
US6550093B1 (en) 1999-02-03 2003-04-22 Yoshihiko Shioda Golf ball cleaning device
FR3117803B1 (en) 2020-12-18 2022-12-09 Oreal Composition comprising aqueous gelling agents, surfactant and ascorbic acid
FR3117799B1 (en) 2020-12-18 2022-12-09 Oreal Composition comprising aqueous gelling agents, surfactant, oils, fillers and ascorbic acid

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3249987A (en) * 1961-03-30 1966-05-10 Philips Corp Method of manufacturing magnetic heads
US3417465A (en) * 1964-05-19 1968-12-24 Minnesota Mining & Mfg Method of making laminated magnetic head
US3534470A (en) * 1968-01-04 1970-10-20 Ibm Process for assembling magnetic tape heads using a consumable fixture
US3475815A (en) * 1968-05-13 1969-11-04 Hewlett Packard Co Method of making an electromagnetic transducer

Also Published As

Publication number Publication date
FR2143016A1 (en) 1973-02-02
DE2227372A1 (en) 1972-12-28
BE786701A (en) 1972-11-16
JPS5213736B1 (en) 1977-04-16
NL7208135A (en) 1972-12-28
US3678576A (en) 1972-07-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees