US2961738A - Textile product - Google Patents
Textile product Download PDFInfo
- Publication number
- US2961738A US2961738A US544446A US54444655A US2961738A US 2961738 A US2961738 A US 2961738A US 544446 A US544446 A US 544446A US 54444655 A US54444655 A US 54444655A US 2961738 A US2961738 A US 2961738A
- Authority
- US
- United States
- Prior art keywords
- tow
- stitching
- stitched
- filaments
- textile product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B9/00—Binding or sealing ends, e.g. to prevent unravelling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
- B65H69/06—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing
- B65H69/068—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing using a binding thread, e.g. sewing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- knots and foldovers result from about 50% of the knots and, if these are not straightened out ahead of the converter, unevenly cut lengths in the top occur.
- the inconvenience and waste of time in straightening out the foldovers and twists also add to the manufacturing cost.
- an object of the present invention to provide a means for connecting tow line ends in which waste is substantially avoided when the tow is subsequently disconnected at the junction point.
- Another object of the present invention is the provision of means for connecting tow line ends in which twists and foldovers in the tow line are substantially avoided.
- the tow ends together preferably with a chain stitch which can readily be unravelled.
- the two bundles of tow are laid evenly one upon the other with the ends pointing in the same direction and stitched together forming a projecting seam.
- the two ends are overlapped and stitched through the overlapping area.
- the stitching is preferably accomplished by a two-thread chain stitch of dilferent colors; although, a single chain stitch is operable.
- the tow may be sewed as indicated above or a tape may be placed transversely on one or both sides of the tow ends and stitched along the tape. The arrangement of the tapes and stitching will be more readily understood by reference to the accompanying drawing.
- Figure 1 represents a diagrammatic plan view of two ends of tow stitched together with a tape on each side.
- Figure 2 is a section along the line 22 of Figure 1.
- Figure 3 is a section similar to Figure 2 in which only one tape is used.
- Figure 4 is a section similar to Figure 2 in which no tapes are used.
- Figure 5 is a diagrammatic plan of two overlapping ends of tow which have been stitched without tapes.
- Figure 6 is a section similar to Figure 4 but stitched with a single-thread chain stitch.
- 1 represents the tow
- 2 indicates the stitching
- 3 denotes the tape which is placed transversely to the tow near the ends.
- This tape may be a strip of any suitable paper, film, or fabric and if desired of a contrasting color so that the seam may be readily observed during the travel of the tow in the machine.
- the tow ends may be placed one upon the other and stitched to form a seam as shown in Figure 1, or the tow ends may be overlapped and stitched as shown in Figure 5.
- the stitching is done on a conventional sewing machine, such as class 157-3 Singer, which is normally used for sewing burlap, canvas, and similar woven fabrics.
- the stitch length should be rather long; i.e., from about 3 /2 to 8 stitches per inch.
- a clearance under the presser foot of about of an inch is satisfactory for most tow. It will be apparent, however, that these figures will vary depending on the denier and number of filaments in the tow being sewn. Likewise, the choice of the number of tapes, if any are used, is largely dependent on the same factors.
- the appropriate thread usually the colored one, is pulled to unravel the stitching. If a lock stitch is used the stitching has to be cut or the section of tow bearing the stitching has to be cut out.
- the present invention represents a distinct saving in the processing of tow, both in the saving in material and in time.
- the strength of the seam is unexpectedly great. Even though the filaments of the tow run in a generally parallel direction without any twist or any cross filaments, the stitching holds and does not pull out under considerable tension. Groups of filaments may be pulled loose from the tapes with relative case but the strength of the bond across the entire tow bundle is more than sufiicient for all normal processing steps and the filaments do not pull loose from the seam when a force is applied to the entire bundle. Foldovers and twists in the two line are substantially eliminated by the present invention and when a chain stitch is used the seam is eliminated without waste.
- Two bundles of tow made up of a multitude of smooth synthetic substantially parallel filaments without significant twist or cross filaments, one end of one of the bundles overlapping an end of the other bundle and a series of thread stitches transversely disposed through the overlapping portions of each bundle, the said stitches being about 3 /2 to 8 per inch.
Description
,- v- 9,1960 1;. mum
TEXTILE PRODUCT "Filed Nov: 3,19
INVENTOR LELAND E THOMAS ATTORNEY tag? United States Patent TEXTILE PRODUCT Leland F. Thomas, Snow Hill, N.C., assignor to E. I. du Pont de Nemours and Company, Wilmington, Del., a corporation of Delaware Filed Nov. 2, 1955, Ser. No. 544,446 '3 Claims. (Cl. 2s-s1 This invention relates to a method of joining tow in the textile industry. In processing tow, particularly that prepared from synthetic fibers, such as fibers spun from a nylon, a polyester, or polyacrylonitrile, discontinuities in the tow line may occur frequently when it becomes necessary to cut out lengths of tow which are below standard for some reason. Heretofore this has been done simply by tieing the two ends into a knot. When the yarn is later converted from tow into top, it is necessary to remove the knot before the tow passes into the converter or other type of cutter or breaker. The tow is made of up to several hundred thousand fine filaments, and the knot is usually very difiicult to untie. For this reason, it is customary practice to cut out the knot. Since the synthetic fiber is relatively expensive, the amount of waste in a year becomes an economic consideration of considerable moment.
Another disadvantage of the knots is the tow bundle is that twists and foldovers result from about 50% of the knots and, if these are not straightened out ahead of the converter, unevenly cut lengths in the top occur. The inconvenience and waste of time in straightening out the foldovers and twists also add to the manufacturing cost.
It is, therefore, an object of the present invention to provide a means for connecting tow line ends in which waste is substantially avoided when the tow is subsequently disconnected at the junction point.
Another object of the present invention is the provision of means for connecting tow line ends in which twists and foldovers in the tow line are substantially avoided.
Other objects will appear as the description of the invention proceeds.
These and other objects are accomplished by stitching the tow ends together preferably with a chain stitch which can readily be unravelled. In one embodiment of the invention, the two bundles of tow are laid evenly one upon the other with the ends pointing in the same direction and stitched together forming a projecting seam. In another embodiment, the two ends are overlapped and stitched through the overlapping area. The stitching is preferably accomplished by a two-thread chain stitch of dilferent colors; although, a single chain stitch is operable. The tow may be sewed as indicated above or a tape may be placed transversely on one or both sides of the tow ends and stitched along the tape. The arrangement of the tapes and stitching will be more readily understood by reference to the accompanying drawing.
In the drawing, Figure 1 represents a diagrammatic plan view of two ends of tow stitched together with a tape on each side.
Figure 2 is a section along the line 22 of Figure 1.
Figure 3 is a section similar to Figure 2 in which only one tape is used.
Figure 4 is a section similar to Figure 2 in which no tapes are used.
Figure 5 is a diagrammatic plan of two overlapping ends of tow which have been stitched without tapes.
Figure 6 is a section similar to Figure 4 but stitched with a single-thread chain stitch.
Patented Nov. 29, 1960 In all the figures, 1 represents the tow, 2 indicates the stitching, and 3 denotes the tape which is placed transversely to the tow near the ends. This tape may be a strip of any suitable paper, film, or fabric and if desired of a contrasting color so that the seam may be readily observed during the travel of the tow in the machine.
.As indicated above, the tow ends may be placed one upon the other and stitched to form a seam as shown in Figure 1, or the tow ends may be overlapped and stitched as shown in Figure 5. The stitching is done on a conventional sewing machine, such as class 157-3 Singer, which is normally used for sewing burlap, canvas, and similar woven fabrics. The stitch length should be rather long; i.e., from about 3 /2 to 8 stitches per inch. A clearance under the presser foot of about of an inch is satisfactory for most tow. It will be apparent, however, that these figures will vary depending on the denier and number of filaments in the tow being sewn. Likewise, the choice of the number of tapes, if any are used, is largely dependent on the same factors. When it is desired separate the tow ends again, the appropriate thread, usually the colored one, is pulled to unravel the stitching. If a lock stitch is used the stitching has to be cut or the section of tow bearing the stitching has to be cut out.
The present invention represents a distinct saving in the processing of tow, both in the saving in material and in time. In addition, it has been found that the strength of the seam is unexpectedly great. Even though the filaments of the tow run in a generally parallel direction without any twist or any cross filaments, the stitching holds and does not pull out under considerable tension. Groups of filaments may be pulled loose from the tapes with relative case but the strength of the bond across the entire tow bundle is more than sufiicient for all normal processing steps and the filaments do not pull loose from the seam when a force is applied to the entire bundle. Foldovers and twists in the two line are substantially eliminated by the present invention and when a chain stitch is used the seam is eliminated without waste.
It will be apparent that many widely different embodiments of this invention may be made without departing from the spirit and scope thereof, and therefore it is not intended to be limited except as indicated in the appended claims.
I claim:
1. Two bundles of tow made up of a multitude of smooth synthetic substantially parallel filaments without significant twist or cross filaments, one end of one of the bundles overlapping an end of the other bundle and a series of thread stitches transversely disposed through the overlapping portions of each bundle, the said stitches being about 3 /2 to 8 per inch.
2. The product of claim 1 in which the stitches are chain stitches.
3. The product of claim 1 in which a reinforcing tape is stitched on at least one side of the tow bundles.
References Cited in the file of this patent UNITED STATES PATENTS 1,074,580 Tyrrell Sept. 3, 1913 1,105,309 Samuel July 28, 1914 1,198,810 Arbib Sept. 19, 1916 1,519,091 Lea Dec. 9, 1924 1,714,928 Sigoda May 28, 1929 2,605,603 Willis Aug. 5, 1952 2,648,891 Pollrnan Aug. 18, 1953 FOREIGN PATENTS 2,818 Great Britain of 1908 398,854 France June 16, 1909
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US544446A US2961738A (en) | 1955-11-02 | 1955-11-02 | Textile product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US544446A US2961738A (en) | 1955-11-02 | 1955-11-02 | Textile product |
Publications (1)
Publication Number | Publication Date |
---|---|
US2961738A true US2961738A (en) | 1960-11-29 |
Family
ID=24172240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US544446A Expired - Lifetime US2961738A (en) | 1955-11-02 | 1955-11-02 | Textile product |
Country Status (1)
Country | Link |
---|---|
US (1) | US2961738A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3280850A (en) * | 1963-05-06 | 1966-10-25 | North American Aviation Inc | Hollow structural elements and methods for fabricating same |
US4559884A (en) * | 1981-11-11 | 1985-12-24 | Akzo Nv | Hollow thread bundle and method of its manufacture |
US4625664A (en) * | 1983-07-21 | 1986-12-02 | Duell Virginia B | Craft yarns |
US4628848A (en) * | 1981-07-29 | 1986-12-16 | E. I. Du Pont De Nemours And Company | Elastomeric yarn supply package |
US4646667A (en) * | 1981-07-29 | 1987-03-03 | E. I. Du Pont De Nemours And Company | Process for making an elastomeric yarn supply package |
WO2012088354A1 (en) * | 2010-12-22 | 2012-06-28 | Butler James J | Novel reinforcement system |
US11350511B2 (en) | 2016-11-07 | 2022-05-31 | Hj3 Composite Technologies, Llc | Fiber reinforced systems with electrostatic dissipation |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190802818A (en) * | 1908-02-07 | 1908-11-12 | Josef Steipe | Improved Method of Manufacturing Ropes, more particularly Ropes for the Transmission of Power, and Apparatus therefor. |
FR398854A (en) * | 1908-04-03 | 1909-06-16 | Paul Bertin | Method and apparatus for making feather boas |
US1074580A (en) * | 1910-03-14 | 1913-09-30 | Bradley Knitting Co | Seam for sewed articles. |
US1105309A (en) * | 1913-07-16 | 1914-07-28 | Leopold S Samuel | Method of making strips for weaving and the like. |
US1198810A (en) * | 1912-08-12 | 1916-09-19 | Alexander Arbib | Method of making feather boas and the like. |
US1519091A (en) * | 1921-12-20 | 1924-12-09 | Shawmut Eng Co | Splicing clip |
US1714928A (en) * | 1926-06-23 | 1929-05-28 | Victor J Sigoda | Stitch-forming mechanism for sewing machines |
US2605603A (en) * | 1951-04-17 | 1952-08-05 | Plymouth Cordage Co | Joint for twine |
US2648891A (en) * | 1952-06-02 | 1953-08-18 | Du Pont | Method and apparatus for adding yarn ends |
-
1955
- 1955-11-02 US US544446A patent/US2961738A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190802818A (en) * | 1908-02-07 | 1908-11-12 | Josef Steipe | Improved Method of Manufacturing Ropes, more particularly Ropes for the Transmission of Power, and Apparatus therefor. |
FR398854A (en) * | 1908-04-03 | 1909-06-16 | Paul Bertin | Method and apparatus for making feather boas |
US1074580A (en) * | 1910-03-14 | 1913-09-30 | Bradley Knitting Co | Seam for sewed articles. |
US1198810A (en) * | 1912-08-12 | 1916-09-19 | Alexander Arbib | Method of making feather boas and the like. |
US1105309A (en) * | 1913-07-16 | 1914-07-28 | Leopold S Samuel | Method of making strips for weaving and the like. |
US1519091A (en) * | 1921-12-20 | 1924-12-09 | Shawmut Eng Co | Splicing clip |
US1714928A (en) * | 1926-06-23 | 1929-05-28 | Victor J Sigoda | Stitch-forming mechanism for sewing machines |
US2605603A (en) * | 1951-04-17 | 1952-08-05 | Plymouth Cordage Co | Joint for twine |
US2648891A (en) * | 1952-06-02 | 1953-08-18 | Du Pont | Method and apparatus for adding yarn ends |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3280850A (en) * | 1963-05-06 | 1966-10-25 | North American Aviation Inc | Hollow structural elements and methods for fabricating same |
US4628848A (en) * | 1981-07-29 | 1986-12-16 | E. I. Du Pont De Nemours And Company | Elastomeric yarn supply package |
US4646667A (en) * | 1981-07-29 | 1987-03-03 | E. I. Du Pont De Nemours And Company | Process for making an elastomeric yarn supply package |
US4559884A (en) * | 1981-11-11 | 1985-12-24 | Akzo Nv | Hollow thread bundle and method of its manufacture |
US4625664A (en) * | 1983-07-21 | 1986-12-02 | Duell Virginia B | Craft yarns |
WO2012088354A1 (en) * | 2010-12-22 | 2012-06-28 | Butler James J | Novel reinforcement system |
US8696849B2 (en) | 2010-12-22 | 2014-04-15 | James J. Butler | Reinforcement system |
US9307796B2 (en) | 2010-12-22 | 2016-04-12 | James J. Butler | Reinforcement system |
US9994981B2 (en) | 2010-12-22 | 2018-06-12 | James J. Butler | Reinforcement system |
US11350511B2 (en) | 2016-11-07 | 2022-05-31 | Hj3 Composite Technologies, Llc | Fiber reinforced systems with electrostatic dissipation |
US11849529B2 (en) | 2016-11-07 | 2023-12-19 | Hj3 Composite Technologies, Llc | Fiber reinforced systems with electrostatic dissipation |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2883096A (en) | Button sewing and sewing implement | |
US2961738A (en) | Textile product | |
ATE193913T1 (en) | REINFORCED SEAM CONNECTION FOR HIGH TENSILE FABRIC | |
US5333562A (en) | Method of stitching a piece of fabric, a piece of fabric obtained thereby, and a composite fiber-matrix piece obtained using said piece of fabric | |
US2937380A (en) | Non-puckerable seam | |
US2251962A (en) | Artificial theead and method for | |
EP0156503A1 (en) | Sewing thread with thermoplastic material; sewing method and sewn product | |
US2137692A (en) | Elastic yarn having cover knitted upon the core | |
JPS5932123B2 (en) | Slide fastener | |
US4016911A (en) | Woven rope | |
US2487988A (en) | Ravelproof seam and method of making the same | |
US3672148A (en) | Sewn tire cord splice and method | |
US3155062A (en) | Joining cord ends | |
US2932325A (en) | Yarn tensioning mechanism | |
US2996780A (en) | Slide fastener structure employing helical fastener member | |
US2906224A (en) | Method of forming lock stitch | |
US3572270A (en) | Stitched seams | |
US5503195A (en) | Combination-type seaming pintles with wire leader | |
US3224399A (en) | Single thread locking seam | |
US3858537A (en) | Self-threading sewing machine needle | |
US2419829A (en) | Woven fabric reinforcement | |
US2438537A (en) | Knot | |
IT8322346A1 (en) | SEWING PROCESS OF FABRIC OR EQUIVALENT MATERIALS WITH ONE-THREAD KNOTTED STITCH AND KNOTTED STITCH | |
US2016909A (en) | Production of tufted fabrics | |
US2804676A (en) | Weaver's knot |