GB856996A - Improvements in or relating to magnetic transducing apparatus - Google Patents

Improvements in or relating to magnetic transducing apparatus

Info

Publication number
GB856996A
GB856996A GB19744/57A GB1974457A GB856996A GB 856996 A GB856996 A GB 856996A GB 19744/57 A GB19744/57 A GB 19744/57A GB 1974457 A GB1974457 A GB 1974457A GB 856996 A GB856996 A GB 856996A
Authority
GB
United Kingdom
Prior art keywords
roller
flywheel
tape
driven
bar
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
GB19744/57A
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Publication of GB856996A publication Critical patent/GB856996A/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
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
    • 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
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
    • G11B15/29—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal through pinch-rollers or tape rolls

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

856,996. Magnetic recording and reproducing- apparatus. TELEFUNKEN G.m.b.H. June 24, 1957 [June 23, 1956], No. 19744/57. Class 40 (2). A magnetic sound transducing apparatus employing an elongated magnetic recording medium comprises driving-means for maintaining constant the speed of the recording medium past the transducing heads. A magnetic tape 5 is drawn past the transducing heads 12 and 13 by a driven capstan 3 rigidly connected to a flywheel 1. Prior to passing over the transducing heads the tape passes over a roller 4 which is unitary with a flywheel 2. Pressurerollers 6 and 7 are mounted on a #-shaped bar 8 which also carries a roller 9 adapted to engage both flywheels 1 and 2 when the bar is in the position shown in dotted lines. In this position the tape 5 is stationary and the flywheel 2 is driven from the flywheel 1 so that roller 4 rotates at the same speed as the roller 3. When the bar 8 is moved to the position shown in full lines the roller 9 is disengaged from the flywheels, the tape is driven by the roller 3 and in turn drives the roller 4 which maintains a constant drag on the length of tape between the two rollers 3 and 4, due to the friction of the roller and flywheel bearings. An eddy current braking action may also be introduced by mounting a coil carrying direct current in the vicinity of the flywheel 2.
GB19744/57A 1956-06-23 1957-06-24 Improvements in or relating to magnetic transducing apparatus Expired GB856996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE856996X 1956-06-23

Publications (1)

Publication Number Publication Date
GB856996A true GB856996A (en) 1960-12-21

Family

ID=6789457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19744/57A Expired GB856996A (en) 1956-06-23 1957-06-24 Improvements in or relating to magnetic transducing apparatus

Country Status (1)

Country Link
GB (1) GB856996A (en)

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