GB1244511A - A magnetic recording device - Google Patents

A magnetic recording device

Info

Publication number
GB1244511A
GB1244511A GB0233/69A GB123369A GB1244511A GB 1244511 A GB1244511 A GB 1244511A GB 0233/69 A GB0233/69 A GB 0233/69A GB 123369 A GB123369 A GB 123369A GB 1244511 A GB1244511 A GB 1244511A
Authority
GB
United Kingdom
Prior art keywords
hole
areas
boards
screw
cores
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
GB0233/69A
Inventor
Jack Thomas Armon Woodward
Edward Graham Jordan
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB0233/69A priority Critical patent/GB1244511A/en
Priority to US874180A priority patent/US3641586A/en
Priority to DE19691965510 priority patent/DE1965510A1/en
Priority to FR7000348A priority patent/FR2030130A1/fr
Priority to NL7000205A priority patent/NL7000205A/xx
Publication of GB1244511A publication Critical patent/GB1244511A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G19/00—Processes using magnetic patterns; Apparatus therefor, i.e. magnetography
    • 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
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
    • G11B5/295—Manufacture
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Heads (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

1,244,511. Selective printing. STANDARD TELEPHONES & CABLES Ltd. 8 Jan., 1969, No. 1233/69. Heading B6F. [Also in Divisions G4-G6] A magnetic recording head for electrographic printing and/or display apparatus, comprises a plurality of rod-like magnetic cores 36 and associated windings 37 fixed 45 to respective printed circuit boards 1, 44 and encapsulated in a support body 48 with one end of the cores and the windings flush with a recording surface of the body. As shown, iron, steel or radiometal wire cores 36 are wound and glued to edges 38 or in slots (43, Fig. 3B, not shown) in the boards and the winding ends 40, 41 glued to the face 1 and terminated at areas 7, 8 (Fig. 1) of copper circuits 5, 6 connected 11, 12 to areas 9, 10 to which the signal leads are connected. Successive boards use different areas 7-10 to allow close packing, the boards being spaced by printed areas 3, 4 containing alignment holes 2. The assembly is located adjacent a support 46 slotted at 51 and tapped at 52, 53. A screw 55 is located in hole 53, and possibly another in hole 52, and the whole encapsulated 48 so that the screw and resin which flows into hole 52 secure the parts together. A nut 56 is screwed on to screw 53 and into a third tapped hole 54 to allow differential adjustment of the head adjacent a drum or belt for electrographic printing &c. The body may contain amorphous silica, or the operating surface provided with a plastics film or silicon nitride deposit to reduce wear. Alternatively, air holes drilled in the body may be used to provide an air bearing.
GB0233/69A 1969-01-08 1969-01-08 A magnetic recording device Expired GB1244511A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB0233/69A GB1244511A (en) 1969-01-08 1969-01-08 A magnetic recording device
US874180A US3641586A (en) 1969-01-08 1969-11-05 Magnetic recording head of multiple core printed circuit construction
DE19691965510 DE1965510A1 (en) 1969-01-08 1969-12-30 Device for multi-track magnetic recording of information
FR7000348A FR2030130A1 (en) 1969-01-08 1970-01-07
NL7000205A NL7000205A (en) 1969-01-08 1970-01-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0233/69A GB1244511A (en) 1969-01-08 1969-01-08 A magnetic recording device

Publications (1)

Publication Number Publication Date
GB1244511A true GB1244511A (en) 1971-09-02

Family

ID=9718434

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0233/69A Expired GB1244511A (en) 1969-01-08 1969-01-08 A magnetic recording device

Country Status (5)

Country Link
US (1) US3641586A (en)
DE (1) DE1965510A1 (en)
FR (1) FR2030130A1 (en)
GB (1) GB1244511A (en)
NL (1) NL7000205A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588989A1 (en) * 1985-10-23 1987-04-24 Bull Sa METHOD FOR MANUFACTURING A MAGNETIC TRANSDUCER HAVING MULTIPLE HEADS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047866A (en) * 1961-04-20 1962-07-31 Vermont Res Corp Magnetic head mount
US3323116A (en) * 1962-05-31 1967-05-30 Burroughs Corp Electromagnetic transducer and method of fabrication
US3470563A (en) * 1965-10-23 1969-09-30 Burroughs Corp Shielded electrostatic transducer
GB1140040A (en) * 1966-05-31 1969-01-15 Standard Telephones Cables Ltd Electro-magnetic recording device and method of making same
US3487391A (en) * 1967-02-03 1969-12-30 Joachim H Todt Magnetic transducing head for photocopy machine

Also Published As

Publication number Publication date
US3641586A (en) 1972-02-08
DE1965510A1 (en) 1970-10-15
FR2030130A1 (en) 1970-10-30
NL7000205A (en) 1970-07-10

Similar Documents

Publication Publication Date Title
MA19664A1 (en) Signal transmission device on a line also providing a DC voltage supply
JPS52101910A (en) Signal converting ic circuit dependent on writing state
DE3382300D1 (en) MAGNETIC RECORDING DEVICE WITH COMPENSATION CIRCUIT FOR DATA RECORDING.
DE69228173D1 (en) Equalizer circuit on the playback side of a digital magnetic playback device
FR2488353B1 (en)
GB1244511A (en) A magnetic recording device
GB1140040A (en) Electro-magnetic recording device and method of making same
BE773124A (en) DEVICE FOR TRANSFORMING MARKS APPEARING ON AN INFORMATION MEDIA INTO ELECTRIC SIGNALS
JPS52130614A (en) Magnetic head
JPS5234704A (en) Recording device of image signal
GB1115230A (en) Supporting means for electromagnetic recording head
JPS5237099A (en) Device for magnetically issuing ticket
FR2680008B1 (en) DEVICE FOR MEASURING LOCAL MAGNETIC FIELD DISTRIBUTION.
JPS5634174A (en) Generating system of cue signal
JPS5437643A (en) Magnetic discrimination device for paper
SU520617A1 (en) Record Level Indicator
JPS5337006A (en) Magnetic recorder/reproducer
AU2296277A (en) Epoxy resin adhesive between substrate and photolacquer
FR1283333A (en) Device for coupling a coil on an axis, in particular in a tape recorder
JPS52151014A (en) Thin film magnetic head
SU652493A1 (en) Contact-free curent measuring device
JPS5485031A (en) Magnetic ink flying recorder
JPS57162138A (en) Initializing device for magnetic tape
JPS5622212A (en) Writing circuit of magnetic tape device
JPS60105160U (en) Static elimination mechanism in recording devices