Patent US4320786A successfully refreshed from Google Patents.
US4320786A
Expired / Lapsed
US
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Measuring device for thread and a method of adjusting the length of a travelling thread
Assignee: Sulzer AG
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Filing: 1980-02-26
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Granted: 1982-03-23
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Expires: 2000-02-26
Abstract
Abstract The measuring device is used for measuring lengths of thread, for example for measuring weft thread for a weaving machine. The measuring device includes a constantly rotating winding body or drum and a thread guide which is adjustable longitudinally of the drum. The thread guide is spaced from the drum and has one or more guide surfaces formed by eyelets or a comb. By shifting the thread guide axially of the drum, the length of thread in the windings on the drum can be increased or decreased per unit time during operation.
Inventors
- 👤 Karl Popp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:44
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/34; D03D47/36; D03D47/361
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
107 words
A measuring device for thread, said device comprising a conical winding body mounted about a longitudinal axis of rotation and having an outer circumferential surface for receiving a plurality of thread windings thereon; a thread guide having a plurality of guide surfaces disposed in spaced relation to said circumferential surface along a plane oblique to and at a slope opposite to the slope of said circumferential surface, each said guide surface being disposed to receive a respective thread winding therein; and means for adjusting said thread guide longitudinally along said plane relative to said winding body to adjust the length of a thread on said circumferential surface.
Claim 2
Dependent Claim
107 words
A measuring device for thread, said device comprising a conical winding body mounted about a longitudinal axis of rotation and having an outer circumferential surface for receiving a plurality of thread windings thereon; a thread guide having a plurality of guide surfaces disposed in spaced relation to said circumferential surface along a plane oblique to and at a slope opposite to the slope of said circumferential surface, each said guide surface being disposed to receive a respective thread winding therein; and means for adjusting said thread guide longitudinally along said plane relative to said winding body to adjust the length of a thread on said circumferential surface.
Claim 3
Dependent Claim
33 words
A measuring device as set forth in claim 1 wherein said thread guide is a comb having a plurality of teeth with each guide surface disposed between an adjacent pair of said teeth.
Claim 4
Dependent Claim
23 words
A measuring device as set forth in claim 1 wherein said thread guide has a plurality of eyelets therein forming said guide surfaces.
Claim 5
Dependent Claim
27 words
A measuring device as set forth in claim 1 wherein said circumferential surface is stepped to define a plurality of cylindrical sections with interconnecting conical surfaces therebetween.
Claim 6
Dependent Claim
35 words
A measuring device as set forth in claim 1 wherein said plane is disposed relative to said circumferential surface of said winding body such that the single turns of thread have essentially the same length.
Claim 7
Independent Claim
109 words
A method of adjusting the length of a travelling thread fed to a processing station, said method comprising the steps of passing the travelling thread over a rotating conical winding body having an outer circumferential surface to form a plurality of thread windings thereon, guiding each one of a plurality of said windings over a respective guide surface of a plurality of guide surfaces spaced from said body along a plane oblique to the circumferential surface, and adjusting the guide surface relative to the winding body during rotation of the winding body at a constant speed to adjust the thread length travelling over the winding body per unit time.
Claim 8
Independent Claim
109 words
A method of adjusting the length of a travelling thread fed to a processing station, said method comprising the steps of passing the travelling thread over a rotating conical winding body having an outer circumferential surface to form a plurality of thread windings thereon, guiding each one of a plurality of said windings over a respective guide surface of a plurality of guide surfaces spaced from said body along a plane oblique to the circumferential surface, and adjusting the guide surface relative to the winding body during rotation of the winding body at a constant speed to adjust the thread length travelling over the winding body per unit time.
Claim 9
Dependent Claim
23 words
A method as set forth in claim 6 wherein the guide surfaces are adjusted along said plane longitudinally of the winding drum surface.
Claim 10
Dependent Claim
18 words
A method as set forth in claim 6 wherein each of said winding has essentially the same length.
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) | 1985-03-22 | 1985-09-21 | 1986-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-22 | 1989-09-21 | 1990-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-22 | 1993-09-21 | 1994-03-23 | $7700.00 | Window Closed / Lapsed |