GB833549A - Improvements in or relating to magnetic tape recording and/or reproducing apparatus - Google Patents

Improvements in or relating to magnetic tape recording and/or reproducing apparatus

Info

Publication number
GB833549A
GB833549A GB2216257A GB2216257A GB833549A GB 833549 A GB833549 A GB 833549A GB 2216257 A GB2216257 A GB 2216257A GB 2216257 A GB2216257 A GB 2216257A GB 833549 A GB833549 A GB 833549A
Authority
GB
United Kingdom
Prior art keywords
tape
reels
loops
magnetic tape
winding
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
GB2216257A
Inventor
Donald Wesley Willis
Peter Skinner
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.)
Decca Record Co Ltd
Original Assignee
Decca Record Co 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 Decca Record Co Ltd filed Critical Decca Record Co Ltd
Priority to GB2216257A priority Critical patent/GB833549A/en
Publication of GB833549A publication Critical patent/GB833549A/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
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/54—Controlling, regulating, or indicating speed by stroboscope; by tachometer
    • 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
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/43—Control or regulation of mechanical tension of record carrier, e.g. tape tension
    • 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
    • G11B15/56—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 the record carrier having reserve loop, e.g. to minimise inertia during acceleration measuring or control in connection therewith
    • G11B15/58—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 the record carrier having reserve loop, e.g. to minimise inertia during acceleration measuring or control in connection therewith with vacuum column

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

833,549. Driving magnetic tape. DECCA RECORD CO. Ltd. Oct. 13, 1958 [July 12, 1957], No. 22162/57. Class 40 (2). [Also in Group XVI] The reels 10, 11 of a tape-drive system are driven by independently controlled velodynetype servomotors, which respond to photoelectric sensing means 30, 32 and 31, 33 respec. tively when translucent parts of the tape, near its ends produce control signals. The reels are also controlled by other photo-electric sensing means 22-29, by means of which, loops of tape of length corresponding to points intermediate between 22, 23 and 26, 27 respectively are maintained in the boxes 14, 20, so that a portion of the tape, defined by the loops, may be rapidly moved past the heads 17, 18 by the capstans 15, 19 without hindrance in starting due to the relatively high inertia of the reels 10, 11, and their associated motors. For loading and unloading full lengths of tape, electronic and relay control means (Fig. 2, not shown) first wind the reels slowly in opposite directions to take up the slack, after which rapid winding is possible without fear of snatch breaking the tape. The signal due to the translucent part of the tape, near its end, returns the driving motor to its previous slow speed to complete the winding. A paper delivered to the I.E.E. is referred to.
GB2216257A 1957-07-12 1957-07-12 Improvements in or relating to magnetic tape recording and/or reproducing apparatus Expired GB833549A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2216257A GB833549A (en) 1957-07-12 1957-07-12 Improvements in or relating to magnetic tape recording and/or reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2216257A GB833549A (en) 1957-07-12 1957-07-12 Improvements in or relating to magnetic tape recording and/or reproducing apparatus

Publications (1)

Publication Number Publication Date
GB833549A true GB833549A (en) 1960-04-27

Family

ID=10174948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2216257A Expired GB833549A (en) 1957-07-12 1957-07-12 Improvements in or relating to magnetic tape recording and/or reproducing apparatus

Country Status (1)

Country Link
GB (1) GB833549A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203635A (en) * 1962-07-30 1965-08-31 Burroughs Corp Servo control system
US3306545A (en) * 1961-08-19 1967-02-28 Grundig Max Apparatus for attaching a tape to a reel
GB2000622A (en) * 1977-06-28 1979-01-10 Yukawa Y Fast wind device for cassette tapes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306545A (en) * 1961-08-19 1967-02-28 Grundig Max Apparatus for attaching a tape to a reel
US3203635A (en) * 1962-07-30 1965-08-31 Burroughs Corp Servo control system
GB2000622A (en) * 1977-06-28 1979-01-10 Yukawa Y Fast wind device for cassette tapes

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