US3784129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternate winding and unwinding of a two-ended program tape
Assignee: Etudes et Bonneterie SA
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Filing: 1972-02-25
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Granted: 1974-01-08
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Expires: 1992-02-25
Abstract
Abstract A two-ended program tape is alternately wound and unwound between two spools by a reversible motor, the spools being connected to this reversible motor via couplers and respective clutches so that the tape-receiving spool is also driven by the motor, and each spool also having a respective auxiliary motor. When a pre-reversal data on the tape passes under a reader, the clutch of the receiving spool is disengaged and its auxiliary motor supplied to rotate in the opposite direction thereby forming a length of loose tape between this spool and the reversible motor. A subsequent reading of a reversal data on the tape actuates reversal of the main motor and engagement of the clutch of the empty spool which is driven in the direction to wind tape thereon, supply to the auxiliary motor of the first spool being cut when the pre-reversal data passes back under the reader.
Inventors
- 👤 N Bourgeois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:36
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/32; G11B15/00; G11B15/18; G11B15/44; G11B15/46; G11B15/48; G11B15/52; Y; Y10; Y10S; Y10S242/00; Y10S242/01
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
200 words
A device for alternately winding and unwinding a two-ended program tape, said tape having thereon program data and, adjacent each end of said tape, pre-reversal data and reversal date, said device comprising: a pair of spools mounted to have alternately wound and unwound therefrom said tape; reading means positioned in the path of said tape between said spools for reading said data on said tape; a reversible driving motor mounted for alternately driving said tape past said reading means from one of said spools to the other; a pair of auxilary motors mounted for selectively driving one of said spools; means interconnected between said reading means and said auxiliary motors, and actuable upon reading of said prereversal data by said reading means, for temporarily controlling the one of said auxiliary motors operating the tape-receiving of said spools to brake said tape-receiving spool and to reverse the direction of rotation thereof, and thus for forming a length of loose tape between said tapereceiving spool and said driving motor; and means interconnected between said reading means and said driving mOtor, and actuable upon reading of said reversal data by said reading means, for reversing the direction of rotation of said driving motor.
Claim 2
Independent Claim
200 words
A device for alternately winding and unwinding a two-ended program tape, said tape having thereon program data and, adjacent each end of said tape, pre-reversal data and reversal date, said device comprising: a pair of spools mounted to have alternately wound and unwound therefrom said tape; reading means positioned in the path of said tape between said spools for reading said data on said tape; a reversible driving motor mounted for alternately driving said tape past said reading means from one of said spools to the other; a pair of auxilary motors mounted for selectively driving one of said spools; means interconnected between said reading means and said auxiliary motors, and actuable upon reading of said prereversal data by said reading means, for temporarily controlling the one of said auxiliary motors operating the tape-receiving of said spools to brake said tape-receiving spool and to reverse the direction of rotation thereof, and thus for forming a length of loose tape between said tapereceiving spool and said driving motor; and means interconnected between said reading means and said driving mOtor, and actuable upon reading of said reversal data by said reading means, for reversing the direction of rotation of said driving motor.
Claim 3
Dependent Claim
60 words
A device as claimed in claim 1, further comprising a pair of electromagnetic clutches each operatively connected to one of said auxiliary motors; and means for selectively driving each of said spools by said driving motor through the respective of said clutches; the clutch of said tape-receiving spool being disengaged upon reading of said pre-reversal date by said reading means.
Claim 4
Dependent Claim
46 words
A device as claimed in claim 2, wherein said driving motor and said clutches have shafts; and said driving means comprises three separate chainwheels operatively associated with the shafts of said driving motor and said clutches, and a driving chain passing around and engaging said chainwheels.
Claim 5
Dependent Claim
25 words
A device as claimed in claim 2, further comprising a driving coupler operatively positioned between said driving motor and said means for driving said spools.
Claim 6
Dependent Claim
36 words
A device as claimed in claim 4, further comprising a braking coupler operatively associated with said driving motor and disposed coaxially to said driving coupler, said braking coupler producing a greater torque than said driving coupler.
Claim 7
Dependent Claim
33 words
A device as claimed in claim 1, wherein said auxiliary motors are d.c. motors which, when not supplied with current, are generator means for producing a braking torque acting on the corresponding spool.
Claim 8
Dependent Claim
128 words
A process for controlling the alternate winding and unwinding of a two-ended program tape between a pair of spools, said process comprising: providing a program tape having selectively positioned adjacent the ends thereof pre-reversal data and reversal data; alternately driving said tape by means of a reversible driving motor from one of said spools to the other past a means for reading data on said tape; detecting by means of said reading means said pre-reversal data, and temporarily braking and reversing the direction of rotation of the tape-receiving of said spools, thus forming a length of loose tape between said tape-receiving spool and said driving motor; and subsequently detecting by means of said reading means said reversal data, and reversing the direction of rotation of said driving motor.
Claim 9
Dependent Claim
128 words
A process for controlling the alternate winding and unwinding of a two-ended program tape between a pair of spools, said process comprising: providing a program tape having selectively positioned adjacent the ends thereof pre-reversal data and reversal data; alternately driving said tape by means of a reversible driving motor from one of said spools to the other past a means for reading data on said tape; detecting by means of said reading means said pre-reversal data, and temporarily braking and reversing the direction of rotation of the tape-receiving of said spools, thus forming a length of loose tape between said tape-receiving spool and said driving motor; and subsequently detecting by means of said reading means said reversal data, and reversing the direction of rotation of said driving motor.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |