GB650489A - Improvements in apparatus for the magnetic recording and reproducing of sound by means of a travelling tape or wire - Google Patents
Improvements in apparatus for the magnetic recording and reproducing of sound by means of a travelling tape or wireInfo
- Publication number
- GB650489A GB650489A GB1111348A GB1111348A GB650489A GB 650489 A GB650489 A GB 650489A GB 1111348 A GB1111348 A GB 1111348A GB 1111348 A GB1111348 A GB 1111348A GB 650489 A GB650489 A GB 650489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heads
- tape
- contact
- reproducing
- shaft
- 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
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
-
- 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
- G11B15/60—Guiding record carrier
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/488—Disposition of heads
- G11B5/4893—Disposition of heads relative to moving tape
Landscapes
- Magnetic Heads (AREA)
Abstract
650,489. Magnetic recording apparatus. RADIO GRAMOPHONE DEVELOPMENT CO., Ltd., DUFFELL, H. F., and GRIFFITHS, R. V. L. April 22, 1948, No. 11113. [Class 40 (ii)] In an apparatus for the magnetic recording of sound, means are provided for lifting the tape 10 out of contact with any or all of the heads 1-3 not in use, comprising arms 21-24 operated by levers 31-34 and cams 41-44, respectively, the latter being mounted on a shaft 26 coupled to a control shaft 17 and knob 15 by pinions 20 and 25. The ends 11-14 of the arms 21-24, respectively, are provided with recesses which serve to guide the tape 10 along the centres of the magnetic cores of the heads 1-3. The shaft 26 is coupled to a switch 16 for controlling the circuits of the heads 1-3, and a ball clicker is provided to retain the shaft 26 in one of five positions A-E, Fig. 4 (not shown). In the " recording " position " A " the arm 24 holds the tape 10 out of contact with the reproducing head 3, so that contact is made only with the erazing head 1 and recording head 2. In the other extreme position, "E," for reproducing, the arms 21 and 22 hold the tape 10 away from the heads 1 and 2, and contact is made only with head 3. In the centre position "C," the tape 10 is held away from all the heads 1-3, and the switch 16 operates the rewinding motor. Positions " B " and " D " are " off positions, in which no circuits are completed and tape 10 is held away from all of the heads 1-3. Specification 650,488, describing the mounting of the heads, is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1111348A GB650489A (en) | 1948-04-22 | 1948-04-22 | Improvements in apparatus for the magnetic recording and reproducing of sound by means of a travelling tape or wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1111348A GB650489A (en) | 1948-04-22 | 1948-04-22 | Improvements in apparatus for the magnetic recording and reproducing of sound by means of a travelling tape or wire |
Publications (1)
Publication Number | Publication Date |
---|---|
GB650489A true GB650489A (en) | 1951-02-28 |
Family
ID=9980277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1111348A Expired GB650489A (en) | 1948-04-22 | 1948-04-22 | Improvements in apparatus for the magnetic recording and reproducing of sound by means of a travelling tape or wire |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB650489A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE941694C (en) * | 1949-04-02 | 1956-04-19 | Telefunken Gmbh | Drive for recording media |
DE1118988B (en) * | 1953-10-05 | 1961-12-07 | Philips Nv | Recording and / or playback device for magnetic recordings on a tape or wire-shaped carrier |
-
1948
- 1948-04-22 GB GB1111348A patent/GB650489A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE941694C (en) * | 1949-04-02 | 1956-04-19 | Telefunken Gmbh | Drive for recording media |
DE1118988B (en) * | 1953-10-05 | 1961-12-07 | Philips Nv | Recording and / or playback device for magnetic recordings on a tape or wire-shaped carrier |
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