Apparatus for controlling the warp tension in a weaving machine
Abstract
Abstract THE WEAVING MACHINE HAS A BACK BEAM AROUND WHICH THE WARP IS BENT TO PROVIDE TWO WARP SPAND EXTENDING FROM THE BACK BEAM AT SUBSTANTIALLY A RIGHT ANGLE TO ONE ANOTHER. THE BACK BEAM IS MOUNTED FOR MOVEMENT IN A DIRECTION SUBSTANTIALLY PARALLEL TO ONE OF THE TWO WARP SPAND AND IS URGED IN SUCH DIRECTION BY RESILIENT MEANS TO MAINTAIN THE WARP UNDER PREDETERMINED TENSION. MECHANISM IS PROVIDED TO OPERATE IN RESPONSE TO MOVEMENT OF THE BACK BEAM IN THE OPPOSITE DIRECTION TO FEED THE WARP TOWARD THE BACK BEAM. THE IMPROVEMENT COMPRISES MECHANISM FOR RECIPROCATING THE BACK BEAM IN A PATH SUBSTANTIALLY PARALLEL TO THE OTHER OF THE TWO WARP SPANS, IN SYNCHRONISM WITH THE OPENING AND CLOSING OF THE SHED OF THE WEAVING MACHINE, TO COUNTERACT THE TENDENCY OF THE OPENING AND CLOSING OF THE SHED TO VARY THE TENSION OF THE WARP.
Inventors
- 👤 Theodorus Franssen
- 👤 Hurbert Van Mullekom
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |