GB695150A - Improvements in or relating to electromagnetic transducing apparatus - Google Patents

Improvements in or relating to electromagnetic transducing apparatus

Info

Publication number
GB695150A
GB695150A GB469151A GB469151A GB695150A GB 695150 A GB695150 A GB 695150A GB 469151 A GB469151 A GB 469151A GB 469151 A GB469151 A GB 469151A GB 695150 A GB695150 A GB 695150A
Authority
GB
United Kingdom
Prior art keywords
tape
transducer
width
held
magnetic
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
GB469151A
Inventor
Edward Barnabas Angold
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.)
THERMIONIC PRODUCTS Ltd
Original Assignee
THERMIONIC PRODUCTS Ltd
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 THERMIONIC PRODUCTS Ltd filed Critical THERMIONIC PRODUCTS Ltd
Priority to GB469151A priority Critical patent/GB695150A/en
Publication of GB695150A publication Critical patent/GB695150A/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
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/62—Maintaining desired spacing between record carrier and head
    • 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
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track
    • G11B5/4969—Details for track selection or addressing
    • 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

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

695,150. Magnetic recording and reproducing apparatus. THERMIONIC PRODUCTS, Ltd. Feb. 20, 1952 [Feb. 26, 1951], No. 4691/51. Class 40 (ii). In a multi-channel transducing apparatus for magnetic tape, two or more transducer units 7 are spaced across the width of the tape 12, each transducer 7 having at least two independent transducing systems spaced apart in the direction of the width of the tape by non-magnetic members 11. In the embodiment described, seven such units 7 are arranged in echelon, Fig. 4, and are held by kidney-shaped springs 8 against a troughshaped plate 4 having apertures 5 through which the pole-pieces 6 of the transducer project. The magnetic tape is slightly narrower than the width of the trough, through which it passes, and is held in contact with the pole-pieces by downwardly projecting tongues 16 of a pressure plate 15 held down under the influence of springs 17. An additional transducer unit may be provided for reproducing a timing signal related to the time of recording the individual channels on the record tape.
GB469151A 1951-02-26 1951-02-26 Improvements in or relating to electromagnetic transducing apparatus Expired GB695150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB469151A GB695150A (en) 1951-02-26 1951-02-26 Improvements in or relating to electromagnetic transducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB469151A GB695150A (en) 1951-02-26 1951-02-26 Improvements in or relating to electromagnetic transducing apparatus

Publications (1)

Publication Number Publication Date
GB695150A true GB695150A (en) 1953-08-05

Family

ID=9781980

Family Applications (1)

Application Number Title Priority Date Filing Date
GB469151A Expired GB695150A (en) 1951-02-26 1951-02-26 Improvements in or relating to electromagnetic transducing apparatus

Country Status (1)

Country Link
GB (1) GB695150A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2859084A (en) * 1955-02-04 1958-11-04 Monroe Calculating Machine Mounting means for magnetic transducing heads
US2880280A (en) * 1954-10-18 1959-03-31 Monroe Calculating Machine Multiple magnetic transducing head with mounting and adjustment means
US2950354A (en) * 1956-05-29 1960-08-23 Burroughs Corp Magnetic head suspension
EP0063398A1 (en) * 1981-04-13 1982-10-27 Koninklijke Philips Electronics N.V. Magnetic-tape cassette apparatus and magnetic-head unit for use in conjunction with such apparatus
EP0088472A1 (en) * 1982-03-09 1983-09-14 Koninklijke Philips Electronics N.V. Magnetic-tape cassette
GB2271880B (en) * 1992-10-20 1997-04-09 Mitsubishi Electric Corp Magnetic structure and magnetic head using the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880280A (en) * 1954-10-18 1959-03-31 Monroe Calculating Machine Multiple magnetic transducing head with mounting and adjustment means
US2859084A (en) * 1955-02-04 1958-11-04 Monroe Calculating Machine Mounting means for magnetic transducing heads
US2950354A (en) * 1956-05-29 1960-08-23 Burroughs Corp Magnetic head suspension
EP0063398A1 (en) * 1981-04-13 1982-10-27 Koninklijke Philips Electronics N.V. Magnetic-tape cassette apparatus and magnetic-head unit for use in conjunction with such apparatus
EP0088472A1 (en) * 1982-03-09 1983-09-14 Koninklijke Philips Electronics N.V. Magnetic-tape cassette
GB2271880B (en) * 1992-10-20 1997-04-09 Mitsubishi Electric Corp Magnetic structure and magnetic head using the same
US5883760A (en) * 1992-10-20 1999-03-16 Mitsubishi Denki Kabushiki Kaisha Magnetic structure and magnetic head using the same
US6236538B1 (en) 1992-10-20 2001-05-22 Mitsubishi Denki Kabushiki Kaisha Magnetic structure and magnetic head using the same

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