Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
209 words
In a machine for twisting several filament yarn strands wrapped on spools, including a creel for supporting the spools, a delivery system which includes several feed rollers, a first thread guide supported along the thread path between the spools and the delivery system for movement back and forth in directions parallel to the axes of the feed rollers and having a guideway for each of the yarn strands, thread-guiding means following the delivery system, a rotatable spindle for supporting a winding bobbin, a second thread guide arranged along an extension of the axis of the spindle and having a respective guide eyelet for each yarn strand, and a third thread guide which follows the second thread guide and has an opening through which all yarn strands are guided together, the improvement comprising wherein the first thread guide is a first guide roller which has a circumferential guide groove for each yarn strand and is freely rotatable about an axis which extends generally parallel to the feed roller axes, and wherein the thread-guiding means includes a second guide roller which is supported for rotational and axial movement with respect to an axis generally parallel to the feed roller axes and which has a circumferential guide groove for each yarn strand.
Claim 2
Dependent Claim
209 words
In a machine for twisting several filament yarn strands wrapped on spools, including a creel for supporting the spools, a delivery system which includes several feed rollers, a first thread guide supported along the thread path between the spools and the delivery system for movement back and forth in directions parallel to the axes of the feed rollers and having a guideway for each of the yarn strands, thread-guiding means following the delivery system, a rotatable spindle for supporting a winding bobbin, a second thread guide arranged along an extension of the axis of the spindle and having a respective guide eyelet for each yarn strand, and a third thread guide which follows the second thread guide and has an opening through which all yarn strands are guided together, the improvement comprising wherein the first thread guide is a first guide roller which has a circumferential guide groove for each yarn strand and is freely rotatable about an axis which extends generally parallel to the feed roller axes, and wherein the thread-guiding means includes a second guide roller which is supported for rotational and axial movement with respect to an axis generally parallel to the feed roller axes and which has a circumferential guide groove for each yarn strand.
Claim 3
Dependent Claim
20 words
The machine according to claim 1, wherein the guide rollers are made of a smooth, wear-resistant plastic, preferably a polyamide.
Claim 4
Dependent Claim
31 words
The machine according to claim 1 or claim 2, wherein the second guide roller is arranged at apoproximately the same height as one of the feed rollers of the delivery system.
Claim 5
Dependent Claim
38 words
The machine according to claim 1, wherein, along the thread path between the spools and the first guide roller, there is provided a guide roller having a smooth and polished surface, all the yarn strands being guided thereover.
Claim 6
Dependent Claim
18 words
The machine according to claim 1, wherein the delivery system includes a pressure roller having a rubber coating.
Claim 7
Dependent Claim
28 words
The machine according to claim 1, wherein the guide eyelets of the second thread guide are each spaced substantially the same distance from the axis of the spindle.
Claim 8
Dependent Claim
34 words
The machine according to claim 1, wherein the bobbin is surrounded by a limiting ring, the inner surface thereof contacting the twisted yarn and being made of a low friction material, preferably a plastic.