GB825471A - Brake mechanism for sound recording and reproducing apparatus - Google Patents
Brake mechanism for sound recording and reproducing apparatusInfo
- 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
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.
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)
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 |
-
1957
- 1957-04-24 DE DEP18401D patent/DE1138246B/en active Pending
-
1958
- 1958-04-23 GB GB1286858A patent/GB825471A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1138246B (en) | 1962-10-18 |
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