GB345804A - Improvements in devices for re-winding the record carriers of magnetic dictating machines - Google Patents
Improvements in devices for re-winding the record carriers of magnetic dictating machinesInfo
- Publication number
- GB345804A GB345804A GB816330A GB816330A GB345804A GB 345804 A GB345804 A GB 345804A GB 816330 A GB816330 A GB 816330A GB 816330 A GB816330 A GB 816330A GB 345804 A GB345804 A GB 345804A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spindle
- spool
- spring
- pulley
- 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
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
Abstract
345,804. Winding webs. KLAPPENECKER, W., 66, Wrangelstrasse, and TELEGRAPHIE - PATENT - SYNDIKAT, GES., 119B, Potsdamerstrasse, both in Berlin. March 13, 1930, No. 8163. [Class 100 (i).] In apparatus for rewinding magnetic sound record carriers and the like from one spool to another wherein a brake is applied to the et-off spool or spindle provision is made for reducing automatically the braking action as the speed of the let-off spool increases consequential on the decreasing diameter of the carrier on the spool. This is effected by centrifugal action on spring-controlled braking elements. The take-up and let-off spools S<1>, S<2>, Fig. 2, for the magnetic wire or band D are secured to spindles A extending down into a casing G and mounted by balls l, Fig. 5, in bearings reduced at the lower ends m on which pulleys R with an annular rib p are mounted by ball bearings O. The lower ends of the shafts A carry discs K secured by radial pins s<1>, s<2> normally retracted by a circular spring f as regards the let-off spindle but which can be projected by a pin s to engage lugs on the rib p of the pulley R as regards the driving spindle. The discs K carry a pair of pivoted and spring- controlled brake levers h<1>, h<2>. Fig. 4, whose short ends bear against the ribs p. The pulleys R are connected by a belt R<1>, Fig. 2, running over a driven pulley S, and the brake levers carried by the spindle of the take-up spool bear against the ribs of the pulley R on that spindle with a pressure which decreases owing to centrifugal action on the levers as the speed of the spindle decreases.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB816330A GB345804A (en) | 1930-03-13 | 1930-03-13 | Improvements in devices for re-winding the record carriers of magnetic dictating machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB816330A GB345804A (en) | 1930-03-13 | 1930-03-13 | Improvements in devices for re-winding the record carriers of magnetic dictating machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB345804A true GB345804A (en) | 1931-04-02 |
Family
ID=9846964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB816330A Expired GB345804A (en) | 1930-03-13 | 1930-03-13 | Improvements in devices for re-winding the record carriers of magnetic dictating machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB345804A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE971215C (en) * | 1951-06-09 | 1959-01-29 | Kurt Bier | Tape recorder |
-
1930
- 1930-03-13 GB GB816330A patent/GB345804A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE971215C (en) * | 1951-06-09 | 1959-01-29 | Kurt Bier | Tape recorder |
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