Patent US3697676A successfully refreshed from Google Patents.
US3697676A
Expired / Lapsed
US
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Head-to-tape alignment apparatus and method
Assignee: CARTRIDGE TELEVISION Inc
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Filing: 1971-06-08
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Granted: 1972-10-10
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Expires: 1991-06-08
Abstract
Abstract Apparatus for bringing a number of oblique signal record tracks on a moving magnetic tape into registry with a number of recording heads of a rotating head tape transport system. In one embodiment, a pair of shiftable tape guides are used to shift the tape relative to and generally axially of the circular paths of the rotating heads. In another embodiment, a means is provided for shifting the heads axially of their circular paths and relative to the tape guides. In either case, the circular paths of the heads are brought into coincidence with the tape record tracks. To render such circular paths and the record tracks parallel, one of the tape guides can be shifted relative to the other tape guide or the mounting means for the heads can be tilted with respect to the tape.
Inventors
- 👤 Arthur I Protas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:37
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/61
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
177 words
In a video reproducing and/or recording apparatus of the helical scan type, including a rotary transducer mount having a central drive and a 360* periphery, a system for adjustably helically contouring a magnetic tape wrap to a portion of said periphery not in excess of 180*, comprising: first and second tape guides each having an upper guiding formation and a lower externally threaded mounting portion, first and second bushings each having an upper portion, externally threaded for mounting and internally threaded independently adjustably to receive the lower portion of a respective tape guide, and a lower portion having a pinion formation, a mounting plate positioned transversely of said drive and internally threaded adjustably to receive the external threads of said bushings, first and second worm gears respectively engaging said pinion formations to position said bushings vertically, first and second bevel gears respectively ganged to said worm gears, and common operator means including a third bevel gear for simultaneously positioning the first and second bevel gears so that the vertical portions of the bushings are adjusted in unison.
Claim 2
Dependent Claim
177 words
In a video reproducing and/or recording apparatus of the helical scan type, including a rotary transducer mount having a central drive and a 360* periphery, a system for adjustably helically contouring a magnetic tape wrap to a portion of said periphery not in excess of 180*, comprising: first and second tape guides each having an upper guiding formation and a lower externally threaded mounting portion, first and second bushings each having an upper portion, externally threaded for mounting and internally threaded independently adjustably to receive the lower portion of a respective tape guide, and a lower portion having a pinion formation, a mounting plate positioned transversely of said drive and internally threaded adjustably to receive the external threads of said bushings, first and second worm gears respectively engaging said pinion formations to position said bushings vertically, first and second bevel gears respectively ganged to said worm gears, and common operator means including a third bevel gear for simultaneously positioning the first and second bevel gears so that the vertical portions of the bushings are adjusted in unison.
Claim 3
Dependent Claim
17 words
The combination in accordance with claim 1, and means for adjustably tilting said central drive and mount.
Claim 4
Dependent Claim
104 words
In a video reproducing and/or rEcording apparatus of the helical scan type, including a rotary transducer mount having a central drive and a 360* periphery, a system for adjustably helically contouring a magnetic tape wrap to a portion of said periphery not in excess of 180*, comprising: first and second tape guides each comprising upper guide formations and intermediate externally threaded mounting formations and a lower pinion formation, a mounting positioned transversely of said drive and internally threaded adjustably to receive said mounting formations, and means, including a common operator element, for engaging the pinion formations to adjust the tape guides vertically in unison.
Claim 5
Dependent Claim
104 words
In a video reproducing and/or rEcording apparatus of the helical scan type, including a rotary transducer mount having a central drive and a 360* periphery, a system for adjustably helically contouring a magnetic tape wrap to a portion of said periphery not in excess of 180*, comprising: first and second tape guides each comprising upper guide formations and intermediate externally threaded mounting formations and a lower pinion formation, a mounting positioned transversely of said drive and internally threaded adjustably to receive said mounting formations, and means, including a common operator element, for engaging the pinion formations to adjust the tape guides vertically in unison.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |