US3604659A
Expired / Lapsed
US
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Method of drawing and winding a thread of endless filament and apparatus for implementing same
Assignee: Maschinenfabrik Rieter AG
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Filing: 1969-04-23
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Granted: 1971-09-14
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Expires: 1989-04-23
Abstract
Abstract A method and apparatus are disclosed for high speed drawing and winding of endless filament threads wherein the threads are passed over a plurality of pairs of draw rollers, each pair being vertically and axially offset with respect to the preceding and following pairs. In addition, each pair of rollers with the exception of the first and lowest pair has its axis inclined with respect to the horizontal to reduce the overall dimensions of the apparatus. After passing from the final pair of rollers, the thread is traversed at a distance from the final pair of at least six times the width of traversal, and is wound upon a suitable roller. Two or more parallel threads may be simultaneously processed by the draw rollers and then individually traversed and wound.
Inventors
- 👤 Rudolf Jaeggli
- 👤 Olivier Wust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:37
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/225; D01; D01D; D01D7/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
121 words
A method of drawing and winding an endless filament thread taken from a spinning cabinet, comprising the steps of transferring the thread by a lowermost roll of a group of rolls arranged at a lowermost position of a plurality of superimposed groups of rolls, diverting the thread upwardly, drawing the thread by means of at least some of said plurality of superimposed groups of rolls, diverting the thread downwardly from an uppermost roll of an uppermost group of rolls of said plurality of groups of rolls, and traversing the thread through a path onto a winding bobbin at a distance from said uppermost roll of said uppermost group of rolls of at least six times the width of the traversal path.
Claim 2
Independent Claim
138 words
A method of drawing and winding an endless mono or multifilament thread taken from a spinning cabinet, comprising the steps of transferring the thread to a first roll of a group of rolls arranged at a lowermost position with regard to a plurality of superimposed groups of rolls, winding the thread thereon in a number of loops, diverting the thread upwardly from said group of lowermost rolls to the next groups of rolls and winding on each a number of loops thereon, drawing the thread by means of at least some of the superimposed groups of rolls, diverting the thread downwardly from the uppermost group of rolls, and traversing the thread through a path onto a takeup spool at a distance from said uppermost group of rolls of at least six times the width of the transversal path.
Claim 3
Dependent Claim
20 words
The method as defined in claim 3, further including the step of initially subjecting the thread to a tensioning draft.
Claim 4
Dependent Claim
39 words
The method as defined in claim 3, further including the step of passing the thread from each group of rolls to the next succeeding group of rolls axially inward in a direction towards said next succeeding group of rolls.
Claim 5
Dependent Claim
60 words
The method as defined in claim 3, further including the step of causing the downwardly diverted thread to leave the uppermost group of rolls at a point which together with said traversal path defines a plane disposed at a minimum distance in front of at least one of the groups of rolls of said plurality of superimposed groups of rolls.
Claim 6
Dependent Claim
63 words
The method as defined in claim 3, further including the step of traversing the thread in a direction substantially parallel to said plurality of groups of rolls in a manner that a plane defined by a plurality of neighboring innermost thread positions is disposed at a minimum distance in front of one group of rolls of said plurality of superimposed groups of rolls.
Claim 7
Dependent Claim
72 words
The method as defined in claim 3, further including the steps of withdrawing two parallel threads in side-by-side relationship, a passing one of said threads from one roll of said uppermost group of rolls to a first traversing guide mechanism, passing the other thread from another roll of said uppermost groups of rolls to a second traversing guide mechanism, and subsequently winding each of said two threads upon a respective takeup spool.
Claim 8
Dependent Claim
89 words
The method as defined in claim 3, including the steps of withdrawing four parallel threads in side-by-side relationship, passing one pair of such threads from one roll of said uppermost group of rolls to a first common traversing guide mechanism, and winding each of said pair of threads separately upon respective takeup spools, and passing the other pair of threads from another roll of said uppermost group of rolls to a second common traversing guide mechanism, and then separately winding said other pair of threads upon respective takeup spools.
Claim 9
Dependent Claim
181 words
The method as defined in claim 3, including the steps of transferring a plurality of parallel threads to said first roll of said group of rolls arranged at said lowermost position, diverting said plurality of threads upwardly from said group of lowermost rolls to said uppermost group of rolls, passing half of the totaL number of said plurality of threads from one roll of said uppermost group of rolls to a first traversing guide mechanism disposed below said groups of rolls, traversing said one-half of said total number of said plurality of threads by means of said traversing guide mechanism in a direction substantially parallel to said groups of rolls, and passing the remaining half of said total number of said plurality of threads from another one of said uppermost group of rolls to a second traversing guide mechanism disposed symmetrically with respect to said first traversing guide mechanism, and traversing said remaining half of said total number of said plurality of threads by means of said second traversing guide mechanism in a direction substantially parallel to said groups of rolls.
Claim 10
Dependent Claim
237 words
The method as defined in claim 3, further including the steps of transferring a plurality of parallel threads to said first roll of said group of rolls arranged at said lowermost position, upwardly diverting said plurality of parallel threads from said lowermost group of rolls to said uppermost group of rolls, passing a first quarter of the total number of threads from one roll of said uppermost group of rolls to a first traversing guide mechanism disposed below said groups of rolls, traversing said first quarter of said total number of threads in a direction substantially parallel to said groups of rolls, and thereafter separating said first quarter of threads into individual threads which are then individually wound upon separate takeup spools, transferring a second quarter of said total number of threads to a second traversing guide mechanism, and a plurality of individual second takeup spools, and similarly transferring said third and fourth quarters of the total number of threads, respectively, to third and fourth traversing guide mechanisms, and individual third and fourth takeup spools, which form respective winding arrangements, said winding arrangements being disposed beneath said first and second takeup spools and being laterally offset with respect thereto, so that the path of the third and fourth quarters of the threads being wound upon said winding arrangement passes at a minimum distance from said takeup spools of said second quarter of the total number of threads.
Claim 11
Dependent Claim
24 words
The method as defined in claim 3, including the step of at least relaxing the thread subsequent to said step of drawing the thread.
Claim 12
Dependent Claim
24 words
The method as defined in claim 3, including the step of at least setting the thread subsequent to said step of drawing the thread.
Claim 13
Independent Claim
92 words
An apparatus for drawing and winding an endless filament thread taken off a spinning cabinet, comprising a first pair of substantially horizontal rolls taking up said thread transferred thereto, further pairs of rolls disposed above said first pair and sequentially taking the thread from said first pair of rolls, each of said further pairs of rolls being displaced axially with respect to the preceding and succeeding pairs of rolls by less than their working width, and said further pairs of rolls being inclined vertically with respect to said first pair of rolls.
Claim 14
Dependent Claim
21 words
An apparatus as defined in claim 14, further comprising a traversing and winding mechanism disposed below said first pair of rolls.
Claim 15
Dependent Claim
32 words
An apparatus as defined in claim 14, comprising a traversing and winding mechanism disposed substantially parallel to said first pair of rolls and disposed between the rolls of said pair of rolls.
Claim 16
Dependent Claim
21 words
An apparatus as defined in claim 14, comprising two tranversing and winding mechanisms arranged side-by-side below said first pair of rolls.
Claim 17
Dependent Claim
28 words
An apparatus as defined in claim 14, comprising two traversing mechanisms and two winding mechanisms disposed substantially parallel to said first pair of rolls and in side-by-side relationship.
Claim 18
Dependent Claim
30 words
An apparatus as defined in claim 14, wherein the angle between said first pair of rolls and said subsequent inclined rolls is within the range of approximately 5* to 10*.
Claim 19
Dependent Claim
64 words
An apParatus as defined in claim 14, comprising two winding arrangements, each provided with two traversing guide mechanisms traversing substantially parallel to the axles of said rolls and with corresponding drive rolls and bobbins, said winding arrangements being disposed below said rolls within a distance determined by the width of said spinning cabinet, said winding arrangements being vertically offset with respect to each other.
Claim 20
Dependent Claim
13 words
An apparatus as defined in claim 20, wherein said winding arrangements overlap horizontally.
Claim 21
Independent Claim
135 words
An apparatus for drawing and winding an endless filament thread, comprising a plurality of superimposed groups of pairs of rolls including a first pair of rolls taking up said thread transferred thereto and defining a lowermost group of rolls of said plurality of groups of rolls, said first pair of rolls having axes disposed substantially perpendicular to the direction of infeed of the thread, said remaining superimposed groups of pairs of rolls defining further pairs of rolls disposed above said first pair of rolls and sequentially taking the thread from said first pair of rolls, each of said further pairs of rolls being displaced axially with respect to the receding and succeeding pairs of rolls by less than their working width, and said further pairs of rolls being inclined vertically with respect to the horizontal.
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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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |