US3745764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and tension regulating device for tight twisting of threads
Assignee: BTR Pamukotec Botevgradsko Cha
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Filing: 1970-10-26
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Granted: 1973-07-17
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Expires: 1990-10-26
Abstract
Abstract A method of and a tension-regulating device for the tighttwizting of a pair of non-twisting threads unwound from a bobbin or yarn package, wherein the threads are passed without twisting through a hollow spindle, are wound one or more times around an arm of the tension-regulating device and are then passed through the eye thereof. Within the spindle, the threads are stretched and are length -equalized, the twisting being effected by the eye and a pair of drawing rollers feeding the twisted yarn to a yarn package or bobbin upon which it is wound.
Inventors
- 👤 G Petrov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:37
CPC Classifications
D; D01; D01H; D01H13/00; D01H1/00; D01H1/003; D01H13/08; D02; D02G; D02G3/00; D02G3/22; D02G3/26; D02G3/28; D02G3/283
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
130 words
A device for the twisting of a pair of threads on a yarn package, comprising a hollow spindle having an axis; means for receiving said yarn package and rotating same and said spindle concurrently about said axis, said threads being unwound from said yarn package and passing through said spindle; a tensionregulating limiter mounted at an end of said spindle and having a spring sleeve surrounding said end of said spindle, an arm extending generally in the direction of said axis from said sleeve, and a generally spiral shaped eye at the end of said arm, said threads passing over said arm and through said eye upon emerging from said spindle; and means spaced from said eye for receiving the threads twisted between said eye and the last mentioned means.
Claim 2
Independent Claim
130 words
A device for the twisting of a pair of threads on a yarn package, comprising a hollow spindle having an axis; means for receiving said yarn package and rotating same and said spindle concurrently about said axis, said threads being unwound from said yarn package and passing through said spindle; a tensionregulating limiter mounted at an end of said spindle and having a spring sleeve surrounding said end of said spindle, an arm extending generally in the direction of said axis from said sleeve, and a generally spiral shaped eye at the end of said arm, said threads passing over said arm and through said eye upon emerging from said spindle; and means spaced from said eye for receiving the threads twisted between said eye and the last mentioned means.
Claim 3
Dependent Claim
18 words
The device defineD in claim 1 wherein said eye has an axis intersectiing the axis of said spindle.
Claim 4
Dependent Claim
20 words
The device defined in claim 2 wherein said axis of said eye is perpendicular to the axis of said spindle.
Claim 5
Independent Claim
140 words
A method of tight-twisting a pair of threads wound upon a yarn package without twisting, said method comprising the steps of: a. unwinding said threads jointly from said yarn package and passing them through a hollow spindle without imparting a twist to said threads therein while stretching and length-equalizing said threads within said hollow spindle; b. frictionally engaging said threads by passing them jointly over an arm of a tension-regulating limiter and through an eye thereof upon emergence of said threads from said hollow spindle; c. gripping said threads at a location spaced from said eye and drawing said threads through said hollow spindle, along said arm and through said eye from said location; and d. rotating said yarn package, said hollow spindle and said tension-regulating limiter to impart a twist to said threads between said eye and said location.
Claim 6
Independent Claim
140 words
A method of tight-twisting a pair of threads wound upon a yarn package without twisting, said method comprising the steps of: a. unwinding said threads jointly from said yarn package and passing them through a hollow spindle without imparting a twist to said threads therein while stretching and length-equalizing said threads within said hollow spindle; b. frictionally engaging said threads by passing them jointly over an arm of a tension-regulating limiter and through an eye thereof upon emergence of said threads from said hollow spindle; c. gripping said threads at a location spaced from said eye and drawing said threads through said hollow spindle, along said arm and through said eye from said location; and d. rotating said yarn package, said hollow spindle and said tension-regulating limiter to impart a twist to said threads between said eye and said location.
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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |