GB908889A - Improvements in or relating to electromagnetic transducer and method of fabrication - Google Patents

Improvements in or relating to electromagnetic transducer and method of fabrication

Info

Publication number
GB908889A
GB908889A GB2884461A GB2884461A GB908889A GB 908889 A GB908889 A GB 908889A GB 2884461 A GB2884461 A GB 2884461A GB 2884461 A GB2884461 A GB 2884461A GB 908889 A GB908889 A GB 908889A
Authority
GB
United Kingdom
Prior art keywords
record
head
encapsulated
assembly
heads
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
GB2884461A
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.)
Unisys Corp
Original Assignee
Burroughs 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 Burroughs Corp filed Critical Burroughs Corp
Publication of GB908889A publication Critical patent/GB908889A/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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
    • 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
    • G11B5/17—Construction or disposition of windings
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)

Abstract

908,889. Magnetic recording &c. heads; supporting. BURROUGHS CORPORATION. Aug. 9, 1961 [Sept. 26, 1960], No. 28844/61. Class 40 (2). A stacked head assembly 14, is constructed integrally with a flexible printed circuit member 12 at a point intermediate its ends, by which it is supported adjacent a record 44 according to the resultant forces due to springs 40, 58 and to the air-cushion formed below the surface 60 when the record is moving. During starting and stopping, an arrangement 90, co-operating with an aperture (not shown) in the head assembly 14 provides a temporary air-cushion to hold the heads away from the record. The member 12 provides connections to the head windings on ferrite cores 62 which are pressed into slots 98; after welding the leads, Fig. 7, the assembly is encapsulated in insulating epoxy resin, to an extent shown by shading 116 in a mould 104. A further layer of conductive epoxy-resin is then moulded on level with the head-gaps (Fig. 11, not shown) and the face 60, Fig. 1, finishmachined. Screening plates (Fig. 9, not shown) are placed between the cores and encapsulated with them.
GB2884461A 1960-09-26 1961-08-09 Improvements in or relating to electromagnetic transducer and method of fabrication Expired GB908889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5851560A 1960-09-26 1960-09-26

Publications (1)

Publication Number Publication Date
GB908889A true GB908889A (en) 1962-10-24

Family

ID=22017291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2884461A Expired GB908889A (en) 1960-09-26 1961-08-09 Improvements in or relating to electromagnetic transducer and method of fabrication

Country Status (2)

Country Link
DE (1) DE1269179B (en)
GB (1) GB908889A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2168854A1 (en) * 1972-01-24 1973-09-07 Peugeot & Renault
GB2156138A (en) * 1983-12-02 1985-10-02 Alps Electric Co Ltd Magnetic head
GB2178219A (en) * 1985-07-12 1987-02-04 Victor Company Of Japan Magnetic head support assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028256A1 (en) * 1980-07-25 1982-02-11 Woelke Magnetbandtechnik GmbH & Co KG, 8069 Schweitenkirchen CARRIER DEVICE FOR A MAGNETIC-ELECTRIC CONVERTER IN A WRITE-READING DEVICE WORKING WITH MAGNETIC MEMORY DISKS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1050076B (en) * 1959-02-05 IBM Deutschland Internationale Büro-Maschinen Gesellschaft m.b.H., Sindelfingen (Württ.) Magnetic head at a distance from the recording medium
GB721755A (en) * 1951-06-08 1955-01-12 Clevite Corp Magnetic transducer head and method of making same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2168854A1 (en) * 1972-01-24 1973-09-07 Peugeot & Renault
GB2156138A (en) * 1983-12-02 1985-10-02 Alps Electric Co Ltd Magnetic head
GB2178219A (en) * 1985-07-12 1987-02-04 Victor Company Of Japan Magnetic head support assembly

Also Published As

Publication number Publication date
DE1269179B (en) 1968-05-30

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