GB854069A - Improvements in magnetic tape recording and reproducing apparatus - Google Patents
Improvements in magnetic tape recording and reproducing apparatusInfo
- Publication number
- GB854069A GB854069A GB1119756A GB1119756A GB854069A GB 854069 A GB854069 A GB 854069A GB 1119756 A GB1119756 A GB 1119756A GB 1119756 A GB1119756 A GB 1119756A GB 854069 A GB854069 A GB 854069A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- tape
- magnetic
- spools
- distance
- 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
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/06—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using web-form record carriers, e.g. tape
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/782—Television signal recording using magnetic recording on tape
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
854,069. Magnetic recording and reproducing machines. INGLESBY, J. C. V. (Fries, G.). April 5, 1957 [April 12, 1956], No. 11197/56. Class 40 (2). A magnetic tape - recording apparatus for obtaining highscanning speeds with comparatively low tape transport speed. A cylinder 2 (Fig. 1), supported on a shaft 13 contains feed and take-up spools 15 and 16 coaxial with the drum. A magnetic tape wound on the feed spool passes out through an aperture 4 in the cylindrical surface of the drum, passes completely round the drum on a helical path for a distance of not less than 360 degrees and re-enters the drum through an aperture 5 to reach the take-up spool. A stationary magnetic head 9 scans the tape as the complete drum rotates, so that the scanning speed is proportional to the angular speed of the drum. The magnetic track of width tn (Fig. 4), is at an angle to the side of the tape and passes over the edges of the adjoining sections of the tape between apertures 4 and 5. At each revolution of the drum the tape must be advanced a distance not less than ts in order to present a fresh surface to the head 9 for the next track. The distance ts =tn/cos # where is the helix angle of the tape path around the surface of the drum, determined by the ratio of the circumferential length of the drum to the width of the tape. In a modification the spools are mounted outside the drum to enable larger spools to be used. In a further modification the tape has perforations along one edge cooperating with a toothed roller and in this case the drum is a conic frustum. Specifications 739,809 and 788,862 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1119756A GB854069A (en) | 1956-04-12 | 1956-04-12 | Improvements in magnetic tape recording and reproducing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1119756A GB854069A (en) | 1956-04-12 | 1956-04-12 | Improvements in magnetic tape recording and reproducing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB854069A true GB854069A (en) | 1960-11-16 |
Family
ID=9981804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1119756A Expired GB854069A (en) | 1956-04-12 | 1956-04-12 | Improvements in magnetic tape recording and reproducing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB854069A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0229996A2 (en) * | 1985-12-17 | 1987-07-29 | EASTMAN KODAK COMPANY (a New Jersey corporation) | System for recording, storing and reading information signals on a record medium |
| EP0375358A2 (en) * | 1988-12-22 | 1990-06-27 | Minnesota Mining And Manufacturing Company | Helical scan tape record apparatus and method |
| WO2001063599A2 (en) * | 2000-02-24 | 2001-08-30 | Storage Technology Corporation | C-ring tape path and wrapper mechanism for automated tape loading |
-
1956
- 1956-04-12 GB GB1119756A patent/GB854069A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0229996A2 (en) * | 1985-12-17 | 1987-07-29 | EASTMAN KODAK COMPANY (a New Jersey corporation) | System for recording, storing and reading information signals on a record medium |
| EP0229996A3 (en) * | 1985-12-17 | 1989-04-26 | Eastman Kodak Company | Cassette, cooperating apparatus, and system and method using same to record, store, and read information signals on a record medium |
| EP0375358A2 (en) * | 1988-12-22 | 1990-06-27 | Minnesota Mining And Manufacturing Company | Helical scan tape record apparatus and method |
| EP0375358A3 (en) * | 1988-12-22 | 1992-02-05 | Minnesota Mining And Manufacturing Company | Helical scan tape record apparatus and method |
| WO2001063599A2 (en) * | 2000-02-24 | 2001-08-30 | Storage Technology Corporation | C-ring tape path and wrapper mechanism for automated tape loading |
| WO2001063599A3 (en) * | 2000-02-24 | 2001-12-13 | Storage Technology Corp | C-ring tape path and wrapper mechanism for automated tape loading |
| US6441992B1 (en) | 2000-02-24 | 2002-08-27 | Storage Technology Corporation | C-ring tape path and wrapper mechanism for automated tape loading |
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