GB825471A - Brake mechanism for sound recording and reproducing apparatus - Google Patents

Brake mechanism for sound recording and reproducing apparatus

Info

Publication number
GB825471A
GB825471A GB1286858A GB1286858A GB825471A GB 825471 A GB825471 A GB 825471A GB 1286858 A GB1286858 A GB 1286858A GB 1286858 A GB1286858 A GB 1286858A GB 825471 A GB825471 A GB 825471A
Authority
GB
United Kingdom
Prior art keywords
brakes
wheel
gear
acting
pinion
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
GB1286858A
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.)
PROTONA PRODUKTIONSGES
Original Assignee
PROTONA PRODUKTIONSGES
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 PROTONA PRODUKTIONSGES filed Critical PROTONA PRODUKTIONSGES
Publication of GB825471A publication Critical patent/GB825471A/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
    • 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
    • G11B15/22—Stopping means
    • 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
    • G11B2005/0002—Special dispositions or recording techniques

Landscapes

  • Braking Arrangements (AREA)
  • Mechanical Control Devices (AREA)

Abstract

825,471. Magnetic sound recording and reproducing apparatus. PROTONA PRODUKTIONSGESELLSCHAFT FUR ELEKTROAKUSTISCHE GERATE G.m.b.H. April 23, 1958 [April 24, 1957], No. 12868/58. Class 40 (2). The brakes for a tape- or wire-recorder are applied by elastic means such that the braking forces are gradually variable. Separate brakes, acting on the take-up spool or its spindle (and a corresponding pair acting on the other spools during rewind) control stopping and running respectively. The brakes are mounted in pairs, one above the other, on fixed posts, one of which is shown at 2, and are all of the form of Fig. 3, where a flat spiral spring 5 urges a doublearmed lever 4 in a clockwise direction so that the friction member 12 coacts with the spool or its spindle, the frictional force being dependent in amount on the position of the gradually variable adjustable anchorage 5a. This anchorage takes the form of a lug 6c on a gear-wheel 6, which serves also to maintain the components of the assembly coaxial. Two pinions engage respectively the gear-wheel 6 and a corresponding gear-wheel 9 associated with the lever 7 forming part of the other brake. In the embodiment illustrated, one pinion, associated with the lower brake, is actuated by ratchet means (Figs. 2, 4, not shown) located below the tapedeck on the pinion shaft, while the other pinion is actuated by a worm engaging it directly. Two control keys (Fig. 5, not shown) operate switches and also coact with linkages acting on the lever arms such as 4e to release such brakes as are not required to function during any particular manner of operation of the apparatus.
GB1286858A 1957-04-24 1958-04-23 Brake mechanism for sound recording and reproducing apparatus Expired GB825471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP18401D DE1138246B (en) 1957-04-24 1957-04-24 Brake for record carrier drives in a magnetic sound pocket device

Publications (1)

Publication Number Publication Date
GB825471A true GB825471A (en) 1959-12-16

Family

ID=7366999

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1286858A Expired GB825471A (en) 1957-04-24 1958-04-23 Brake mechanism for sound recording and reproducing apparatus

Country Status (2)

Country Link
DE (1) DE1138246B (en)
GB (1) GB825471A (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE664759C (en) * 1935-07-26 1938-09-03 Aeg Device for magnetic sound recording and reproduction
DE952391C (en) * 1943-04-04 1956-11-15 Bauer Eugen Gmbh Brake roll for Tongeraete with tape-shaped sound carriers
FR940293A (en) * 1947-01-22 1948-12-08 Braking device
US2639333A (en) * 1947-05-12 1953-05-19 Indiana Steel Products Co Magnetic recorder
US2481004A (en) * 1947-06-19 1949-09-06 Webster Chicago Corp Wire recorder
US2782263A (en) * 1954-07-01 1957-02-19 Rca Corp Magnetic recording and reproducing apparatus

Also Published As

Publication number Publication date
DE1138246B (en) 1962-10-18

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