US2560848A - Yarn take-up disk for double twist spindles - Google Patents
Yarn take-up disk for double twist spindles Download PDFInfo
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- US2560848A US2560848A US8346A US834648A US2560848A US 2560848 A US2560848 A US 2560848A US 8346 A US8346 A US 8346A US 834648 A US834648 A US 834648A US 2560848 A US2560848 A US 2560848A
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- 230000007423 decrease Effects 0.000 description 6
- 238000009987 spinning Methods 0.000 description 6
- 239000004753 textile Substances 0.000 description 6
- 241001155433 Centrarchus macropterus Species 0.000 description 4
- ONCZDRURRATYFI-QTCHDTBASA-N methyl (2z)-2-methoxyimino-2-[2-[[(e)-1-[3-(trifluoromethyl)phenyl]ethylideneamino]oxymethyl]phenyl]acetate Chemical compound CO\N=C(/C(=O)OC)C1=CC=CC=C1CO\N=C(/C)C1=CC=CC(C(F)(F)F)=C1 ONCZDRURRATYFI-QTCHDTBASA-N 0.000 description 3
- 230000020347 spindle assembly Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/86—Multiple-twist arrangements, e.g. two-for-one twisting devices ; Threading of yarn; Devices in hollow spindles for imparting false twist
- D01H7/868—Yarn guiding means, e.g. guiding tubes
Definitions
- This invention relates to the storage ring or takeup disc of double twist spindles for spinning or twisting textile yarns.
- yarn from a supply spool or package passes downwardly through a hollow spindle, then outwardly through a transverse outlet passage near the lower end of the spindle blade or shank.
- the yarn then passes around a takeup disc and upwardly over a guide to a rotating takeup spool or package usually located above the rotating spindle. Since the spindle is rotating. the primary twist is inserted in the yarn between the supply package and the spindle outlet, and the secondary twist occurs between the spindle outlet and the takeup spoo
- Variable tensions which the yarn undergoes in the twisting operation have been a problem in the industry. Attempts have been made to provide apparatus which will overcome the varying tension problems, but the solutions were applicable only to a particular yarn size or weight. Other attempts to overcome the problem for general purposes have been commercially unsuccessful, as will be apparent after the nature of the problem is more fully explained.
- the tension varies as the amount of yarn on the supply package decreases. Furthermore, slight imperfections in the wind or build of the supply package create variable instantaneous tensions as the yarn is drawn away from the supply package.
- the primary tension occurs between the supply package and transverse outlet of the spindle, and the secondary tension between the transverse outlet and the takeup spool.
- the primary tension occurs between the supply package and transverse outlet of the spindle, and the secondary tension between the transverse outlet and the takeup spool.
- the primary tension is too great, then the yarn will twist apart or break. If, on the other hand, the secondary tension is too great, the yarn willbecome overstressed and may break.
- Another arrangement was that of providing small fiber gears or discs rotating within the stationary part of the spindle, with one of the fiber discs exerting pressure on the other by means of a spring which was adjustable.
- the yarn passing through the spindle passed between the discs, and the rotating gears or discs were intended to control the variable tensions encountered by the yarn.
- Such an arrangement was, of course, diiiicult and expensive to manufacture commercially, and further suifered in that the spring controlling the small discs within the spindle required readjustment for'difierent types or textures and sizes of the yarn, or the speed of operation. In commercial use, adjustment of the spring was extremely diflicult.
- Figures 2 and 3 are bottom plan view and side elevational view, respectively, of a preferred constructipn of the takeup disc.
- Figure 4 shows a modified form of takeup disc, illustrating the yarn path principles.
- a means for storing in a spiral fashion theyarn as it leaves the outlet of the spindle.
- the yarn in passing from the spindle outlet upwardly over a guide, has passed around the takeup disc. Since the yarn emerged from an opening near the upper outer edge of the disc and passed upwardly toward the takeup spool, thus leaving the disc from the same upper outer edge, a. complete encirclement of the disc meant that the yam tended to overlap itself.
- the yarn pass only part-way around the disc before curving upwardly toward the takeup reel to avoid overlapping with attendant tendency to break.
- the yarn which is to be twisted passes in ever end relationship from the supply spool iii through. the wire loop 23 downwardly through the hollow spindle assembly and outwaiidly through the spindle outlet l4 into the takeup disc opening ll.
- the yarn passes directly upwardly over the rotor guide is to the rotating takeup reel ll.
- Another guide may be located near the takeup reel, if desired.
- the yarn emerges from the opening I1 in the disc is ata point at the lower edge of the disc.
- this outle. point for the yarn may be at the lower edge;of the disc.
- Vertical pins 26 are insertednear the opposite edges of the opening i'l. These pins provide a smooth surface over which the yarn may pass in emerging from the opening l1 around the edge of the disc l5.
- a takeup disc is fitted onto th spindle at the point opposite the outlet u thereof-
- the taikeup disc may be of any. desired construc tion, either a skeleton framework or a solid disc, having a path l6 around the outer edge thereof for the yarn.
- An opening I! passes diametrically through the.disc, connecting 'an axial opening 20 with the outer edge thereof, providing a continuous passage for the yarn as it leaves the outlet Hfof. the spindle II.
- the circumference of the disc l5 provides a smooth and flat surface.
- a flier is provided at the top of the spindle I assembly, consisting of. a. small bearing 21 which may be of wood, for instance.
- An elongated In the actual construction, a second-v .-yarn wound on said surface in a spiral manner.
- a path on a surface wlll beprovided for multiple turns of scribed represents-merely one way of guiding the ---yarn from the edge of the disc at the desired piece of .wire'having a loop 23 on the end thereof, is attached at one end to the wooden bearing 2
- The. arrangement described provides a snubbing action regulating the variable tensions involved-inthrowing yarns of various weights and textures at the speeds encountered. For instance.
- a circular takeup disc having an axial opening, an outer circumferential edge providing a smooth flat path for multiple turns of yarn, an outer opening in said path, and an open passage extending radially connecting said axial opening with said outer edge, the edges defining said outer opening being located in the lower side of said path.
- a takeup disc having an axial opening, a. smooth surfaced outer side providing a flat path for multiple turns of yarn, an outer opening in said path, a yarn guide surface extending laterally from one edge of said path, and a radial passage connecting said axial opening with said outer opening in said path, the edges defining said outer opening being located at the edge of said path away from said guide.
- a takeup disc having a smooth surfaced outer side providing a fiat path for multiple turns of yarn, an axial opening in said disc, a radial passage connecting said opening with said path, and smooth surfaced pins located in said passage providing in the lower half thereof, a bearing surface for said yarn in passing there'- through.
- Apparatus for spinning and twisting textile yarns comprising a spindle having a yarn takeup disc, said takeup disc having an axial opening and an outer circumferential edge providing a smooth surfaced fiat path for multiple turns of yarn, and positive guide means for said yarn p0- sitioned at the lower side of said path whereby said yarn is led outwardly onto said path at the lower edge thereof to permit. multiple turns of single layer spiral windings of said yarn on said disc.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
July 17, 1951 J. K. COCHRAN 2,560,848 YARN TAKE-UP DISK FOR DOUBLE TWIST SPINDLES Filed Feb. 14, 1948 2 Shets-Sheet 1 IN V EN TOR.
ATTORNEYS July 17,1951 J. K. COCHRAN 2,560,343
YARN TAKE-UP DISK FOR DOUBLE TWIST SPINDLES Filed Feb 14, 1948 2 Sheets-Sheat 2 A 7' TORNE Y8 Patented July 17, 1951 YARN TAKE-UP DISK FOR DOUBLE TWIST SPINDLES John Kermit Cochran, Conyngham, Pa., assignor to The Duplan Corporation, Hazleton, Pa., a
corporation of Delaware Application February 14, 1948, Serial No. 8,346
Claims. 1
This invention relates to the storage ring or takeup disc of double twist spindles for spinning or twisting textile yarns.
In the type apparatus referred to, yarn from a supply spool or package passes downwardly through a hollow spindle, then outwardly through a transverse outlet passage near the lower end of the spindle blade or shank. The yarn then passes around a takeup disc and upwardly over a guide to a rotating takeup spool or package usually located above the rotating spindle. Since the spindle is rotating. the primary twist is inserted in the yarn between the supply package and the spindle outlet, and the secondary twist occurs between the spindle outlet and the takeup spoo Variable tensions which the yarn undergoes in the twisting operation, have been a problem in the industry. Attempts have been made to provide apparatus which will overcome the varying tension problems, but the solutions were applicable only to a particular yarn size or weight. Other attempts to overcome the problem for general purposes have been commercially unsuccessful, as will be apparent after the nature of the problem is more fully explained.
A great many variables act on the yarn during the twisting operation, creating variable tensions at different points. For instance, different yarn weight or difierent physical characteristics of the yarn, such as the texture, affect the tension which occurs in the balloon; also wind resistance of the balloon has a definite effect on the tension. Additionally, of course, the speed at which the yarn is twisting and taken up on the takeup reel, affects the tensions undergone by the yarn;
also, at the supply end, the tension varies as the amount of yarn on the supply package decreases. Furthermore, slight imperfections in the wind or build of the supply package create variable instantaneous tensions as the yarn is drawn away from the supply package.
In the course of study of thevarious tensions which are encountered by the yarn, it has been found that they may roughly be divided into two groups, constituting what might be referred to as primary tension and secondary tension. The primary tension occurs between the supply package and transverse outlet of the spindle, and the secondary tension between the transverse outlet and the takeup spool. In operation, if the primary tension is too great, then the yarn will twist apart or break. If, on the other hand, the secondary tension is too great, the yarn willbecome overstressed and may break.
Numerous attempts have been made to design a spindle so that it will compensate for variations in primary tension without changing secondary tension. For instance, a flier arrangement, located between the supply spool and the top of the spindle, has been provided, in which the yarn passes through a loop which is supported by a bearing mounted on the top of the spindle assembly and is rotated slowly by the unwinding of the yarn from the supply package. By careful adjustment of the friction of the bearing, the tension could be regulated'so as to avoid trouble. However, since the diameter of a full package of yarn will differ from the diameter of a package which is almost exhausted by as much as two and a half times, the tensions will vary from point to point, and the snubbing action of the rotating flier does not compensate. Thus, the increased tension caused breakage when the package had been depleted by, for instance, half the original amount.
Proposed methods of overcoming this difliculty were to vary the friction of the flier periodically or to use spools or packages of yarn which contained only half the amount of a normal pack age, so that the diiference between the diameter of a full package and that of an exhausted package was not great and, therefore, the resulting increase in tension was not sufficiently great to cause breakage of the yarn.- Such arrangements, of course, are extremely undesirable and unsatisfactory from a commercial or production point of view.
Another arrangement was that of providing small fiber gears or discs rotating within the stationary part of the spindle, with one of the fiber discs exerting pressure on the other by means of a spring which was adjustable. The yarn passing through the spindle passed between the discs, and the rotating gears or discs were intended to control the variable tensions encountered by the yarn. Such an arrangement was, of course, diiiicult and expensive to manufacture commercially, and further suifered in that the spring controlling the small discs within the spindle required readjustment for'difierent types or textures and sizes of the yarn, or the speed of operation. In commercial use, adjustment of the spring was extremely diflicult.
Other attempts have been made to overcome the tension problems, suchas, for instance, guides arranged so as to control the shape of the balloon, thus controlling the variations in tension. Such arrangements were extremely cumbersome and took up valuable and useful space, which. as
well understood by those skilled in the art. is a premium in the textile industry.
Therefore, it is the object of this invention to provide an effective yet simple solution to the varying tension problem encountered in throwing yarns, particularly in double twist spindles.
spindle assembly, showing the takeup disc and the manner in which the yarn passes through the spindle and to the takeup reel;
Figures 2 and 3 are bottom plan view and side elevational view, respectively, of a preferred constructipn of the takeup disc; and
Figure 4 shows a modified form of takeup disc, illustrating the yarn path principles.
In accordance with this invention, a means has been provided for storing in a spiral fashion theyarn as it leaves the outlet of the spindle. Heretofore the yarn, in passing from the spindle outlet upwardly over a guide, has passed around the takeup disc. Since the yarn emerged from an opening near the upper outer edge of the disc and passed upwardly toward the takeup spool, thus leaving the disc from the same upper outer edge, a. complete encirclement of the disc meant that the yam tended to overlap itself. Thus, it was desirable thatthe yarn pass only part-way around the disc before curving upwardly toward the takeup reel to avoid overlapping with attendant tendency to break.
The apparatus in accordance with this inven tion is illustrated in Figure 1, in which there is a doubletwist spindle blade ilhaving a longie.
' the disc.
duplicate wire, extending diametrically opposite the first. is provided as a matter of convenience in threading. The friction between the wooden bearing 2| and the assembly on the end of which the bearing is mounted, is not critical.
As may be seen, the yarn which is to be twisted passes in ever end relationship from the supply spool iii through. the wire loop 23 downwardly through the hollow spindle assembly and outwaiidly through the spindle outlet l4 into the takeup disc opening ll. At the beginning of the operation, the yarn passes directly upwardly over the rotor guide is to the rotating takeup reel ll. Another guide may be located near the takeup reel, if desired. As the s indle begins to rotate, the yarn is pulled out from theopening l6 and it balloons outwardly and upwardly, as indicated at 24.. When this occurs, the yarn begins to wind itselfaround the takeup disc l5.
In accordance .with this invention, the yarn emerges from the opening I1 in the disc is ata point at the lower edge of the disc. In ,order that this outle. point for the yarn may be at the lower edge;of the disc. there is provided, in accordance with this particular embodiment of the inventiorna horizontally extending pin l -[pass e lug acrossthe opening in the lower half thereof. Vertical pins 26 are insertednear the opposite edges of the opening i'l. These pins provide a smooth surface over which the yarn may pass in emerging from the opening l1 around the edge of the disc l5. When the yarn is threaded before the operation begins, it is brought out ofthe point indicated soas to emerge from the opening II at the lower half ofthe fiat edge ii of ly upwardly aroundthe disc I! as it passes=upwardly to-thetakeup reel 18. In other words.-
- while the yarn leaves the circumferential path or of thespindle, the outlet passage i4, extending transversely of the spindle, is provided. a
Normally, a takeup disc is is fitted onto th spindle at the point opposite the outlet u thereof- The taikeup disc may be of any. desired construc tion, either a skeleton framework or a solid disc, having a path l6 around the outer edge thereof for the yarn. An opening I! passes diametrically through the.disc, connecting 'an axial opening 20 with the outer edge thereof, providing a continuous passage for the yarn as it leaves the outlet Hfof. the spindle II.
Injth form illustrated, the circumference of the disc l5 provides a smooth and flat surface.
for e yarn as it passes around the periphery of the disc, The particular shape of the outer edge to the takeup reel; .This is illustratedin Figure 4.
of 'thedisc providing the path for the yarn, is
ferred, mounted on the lower end of the spindle just above the disc, serves as a guide for the yarn as it passes from the takeup disc to the takeup reel l9llocated above.- v
A flier is provided at the top of the spindle I assembly, consisting of. a. small bearing 21 which may be of wood, for instance. An elongated In the actual construction, a second-v .-yarn wound on said surface in a spiral manner. Thus, the particular structure illustrated and desurface ii of the disc It at the lower edge thereof and wraps itself around the disc, it leaves the; side of the disc at theupper edge in passing upwardly With this arrangement, the yarn may wrap itself I around thedisc several times without overlapping itself because of the spiral positioning ,of' the yarn on surface 16.
While a particular arrangement for guiding the yarn out of the opening I] near the lower part of the edge of the disc 15 has been described'and illustrated, it is obvious that many variations. are possible. For instance, a small passagelna he bored diametrically through the-disc with the outer opening l'l thereof near the lower edge of the circumferential side of the disc, as illustrated a in Figure 4. t In this way, the yarnwould emerge near the lower edge of the disc; also, the opening-il could becovered, leaving a small hole near the lower side of the opening 'so that the yarn would-emerge near the lower edge of the disc it.
Other variations are possible in which a path on a surface wlll beprovided for multiple turns of scribed represents-merely one way of guiding the ---yarn from the edge of the disc at the desired piece of .wire'having a loop 23 on the end thereof, is attached at one end to the wooden bearing 2| 4 point.. t T The. arrangement described provides a snubbing action regulating the variable tensions involved-inthrowing yarns of various weights and textures at the speeds encountered. For instance.
as the spindle is set in: motion after threading The yarn is then threaded upwardly the yarn will wrapitself around the smooth surface or path on the edge of the disc. As the secondary tension increases the number of turns will decrease, decreasing the snubbing action until equilibrium between the tensions has been reached. As the number of turns decrease the yarn is permitted to slide around the disc so that an increment of yarn is withdrawn until equilibrium is established. Similarly, if during the operation the primary tension should for any reason decrease the number of turns on the disc will increase, increasing the snubbing action. If, on the other hand, the primary tension increases, then the number of turns on the disc will decrease so as to decrease the snubbing action. In each case the number of turns will vary until equilibrium is established. Thus, the snubbing' action of the spiral winding of the yarn about the take-up disc automatically adjusts itself to each of the variances in tension encountered.
It has been found that this arrangement great- 1y improves the snubbing adjustment for varying tensions encountered in spinning or twisting textile yarns. The automatic and immediate compensation provides an improved snubbing action to prevent undue tension at any point on the yarn caused by variables such as speed of operation, difi'erence in yarn weight, difierence in physical characteristic of texture of the yarn, and variation in the amount of yarn on the sup- I ply spool.
It will be apparent that this solution to the long standing tension problem is simple and economical.
While preferred embodiments of the invention have been described and illustrated, it will be apparent to those skilled in the art that modifications may be made without departing from the scope of the invention.
What is claimed is:
1 In apparatus for yarn spinning and twisting, a circular takeup disc having an axial opening, an outer circumferential edge providing a smooth flat path for multiple turns of yarn, an outer opening in said path, and an open passage extending radially connecting said axial opening with said outer edge, the edges defining said outer opening being located in the lower side of said path.
2. In apparatus for spinning and twisting textile yarns, a takeup disc having an axial opening, a. smooth surfaced outer side providing a flat path for multiple turns of yarn, an outer opening in said path, a yarn guide surface extending laterally from one edge of said path, and a radial passage connecting said axial opening with said outer opening in said path, the edges defining said outer opening being located at the edge of said path away from said guide.
3. In apparatus for spinning and twisting textile yarns, a takeup disc having a smooth surfaced outer side providing a fiat path for multiple turns of yarn, an axial opening in said disc, a radial passage connecting said opening with said path, and smooth surfaced pins located in said passage providing in the lower half thereof, a bearing surface for said yarn in passing there'- through.
4. A yarn takeup disc according to claim 3, in which said pins comprise a plurality of pins parallel to the axis of said disc located near the outer opening of said passage, and a pin mounted normal to said plurality of pins and at the lower side of said opening.
5. Apparatus for spinning and twisting textile yarns comprising a spindle having a yarn takeup disc, said takeup disc having an axial opening and an outer circumferential edge providing a smooth surfaced fiat path for multiple turns of yarn, and positive guide means for said yarn p0- sitioned at the lower side of said path whereby said yarn is led outwardly onto said path at the lower edge thereof to permit. multiple turns of single layer spiral windings of said yarn on said disc.
JOHN KERMIT COCHRAN.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,547,099- Daudelin July 21, 1925 1,900,037 Bochmann et al. Mar. '7, 1933 2,125,823 Stoddard Aug. 2, 1938 2,140,060 Spencer Dec. 13, 1938 2,156,330 Bochmann May 2, 1939 FOREIGN PATENTS Number Country Date 571,112 Germany Feb. 23, 1933
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Application Number | Priority Date | Filing Date | Title |
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US8346A US2560848A (en) | 1948-02-14 | 1948-02-14 | Yarn take-up disk for double twist spindles |
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US8346A US2560848A (en) | 1948-02-14 | 1948-02-14 | Yarn take-up disk for double twist spindles |
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US2560848A true US2560848A (en) | 1951-07-17 |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2715811A (en) * | 1952-07-17 | 1955-08-23 | American Viscose Corp | Flier for multiple twist twisters |
US2731787A (en) * | 1952-07-23 | 1956-01-24 | marsh | |
US2802329A (en) * | 1953-08-31 | 1957-08-13 | Saco Lowell Shops | Twisters |
US2843997A (en) * | 1951-05-08 | 1958-07-22 | Alfred W Vibber | Twisting spindle balloon control |
US2851848A (en) * | 1952-10-29 | 1958-09-16 | Alfred W Vibber | Twisting spindle balloon control |
DE973364C (en) * | 1951-07-28 | 1960-02-04 | Walter Dipl-Ing Morawek | Two-for-one twisting spindle |
US3310934A (en) * | 1963-07-13 | 1967-03-28 | Palitex Project Co Gmbh | Double twist spindle |
US3855773A (en) * | 1973-05-07 | 1974-12-24 | Phillips Fibers Corp | Two-for-one twister |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1547099A (en) * | 1923-04-13 | 1925-07-21 | Jean B Daudelin | Shuttle |
DE571112C (en) * | 1933-02-23 | Barmer Maschinenfabrik Akt Ges | Device for balancing the thread tension for two-for-one twisting spindles | |
US1900037A (en) * | 1930-04-13 | 1933-03-07 | Barmag Barmer Maschf | Device for equalizing the thread tensions for twisting devices |
US2125823A (en) * | 1938-03-23 | 1938-08-02 | Stoddard Nicholas | Textile machine |
US2140060A (en) * | 1937-11-22 | 1938-12-13 | Watson Williams Mfg Company | Loom shuttle |
US2156330A (en) * | 1937-03-22 | 1939-05-02 | Barmag Barmer Maschf | Double twist twisting spindle |
-
1948
- 1948-02-14 US US8346A patent/US2560848A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE571112C (en) * | 1933-02-23 | Barmer Maschinenfabrik Akt Ges | Device for balancing the thread tension for two-for-one twisting spindles | |
US1547099A (en) * | 1923-04-13 | 1925-07-21 | Jean B Daudelin | Shuttle |
US1900037A (en) * | 1930-04-13 | 1933-03-07 | Barmag Barmer Maschf | Device for equalizing the thread tensions for twisting devices |
US2156330A (en) * | 1937-03-22 | 1939-05-02 | Barmag Barmer Maschf | Double twist twisting spindle |
US2140060A (en) * | 1937-11-22 | 1938-12-13 | Watson Williams Mfg Company | Loom shuttle |
US2125823A (en) * | 1938-03-23 | 1938-08-02 | Stoddard Nicholas | Textile machine |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2843997A (en) * | 1951-05-08 | 1958-07-22 | Alfred W Vibber | Twisting spindle balloon control |
DE973364C (en) * | 1951-07-28 | 1960-02-04 | Walter Dipl-Ing Morawek | Two-for-one twisting spindle |
US2715811A (en) * | 1952-07-17 | 1955-08-23 | American Viscose Corp | Flier for multiple twist twisters |
US2731787A (en) * | 1952-07-23 | 1956-01-24 | marsh | |
US2851848A (en) * | 1952-10-29 | 1958-09-16 | Alfred W Vibber | Twisting spindle balloon control |
US2802329A (en) * | 1953-08-31 | 1957-08-13 | Saco Lowell Shops | Twisters |
US3310934A (en) * | 1963-07-13 | 1967-03-28 | Palitex Project Co Gmbh | Double twist spindle |
US3855773A (en) * | 1973-05-07 | 1974-12-24 | Phillips Fibers Corp | Two-for-one twister |
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