US3904458A - Method of joining continuous strands - Google Patents

Method of joining continuous strands Download PDF

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US3904458A
US3904458A US300874A US30087472A US3904458A US 3904458 A US3904458 A US 3904458A US 300874 A US300874 A US 300874A US 30087472 A US30087472 A US 30087472A US 3904458 A US3904458 A US 3904458A
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strands
end portions
yarn
joint
tie
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US300874A
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Raymond Patrick Wray
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Imperial Chemical Industries Ltd
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Imperial Chemical Industries Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/69—General aspects of joining filaments 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/66—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • B29C65/68—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined using auxiliary shrinkable elements
    • 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
    • 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
    • B65H69/02—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by means of adhesives
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B65H2701/312—Fibreglass strands

Definitions

  • the present invention 1s dlrected to a method of form [51] Int Cl 2 D02G3/22 B65H 69/06 ing a joint between end portions of two continuous [58] Fie'ld "156/84 294 296 strands, for example, synthetic filament yarns, that are 156/180 303 1 304 172 arranged in overlapping engagement by bonding the 169 5 5 57/142 end portions together with an adhesive material and G 64030 5, f shrinking a sheath that is formed solely by wrapping a 1 l7'4/D[G tie-yarn of heat shrinkable material around the ends of i the two strands.
  • the present invention relates to a method of forming a joint between the end portions of two continuous strands arranged in overlapping engagement.
  • two continuous strands is meant two continuous filaments or two continuous filament yarns.
  • overlapping engagement is meant that the end portions of the strands are arranged in side-by-side overlapping relationship and, if desired, have a low level of twist imparted thereto.
  • the filaments at an end portion of each yarn may be intermingled together to provide overlapping engagement.”
  • an object is to form a joint between end portions of two continuous strands arranged in overlapping engagement by bonding the end portions together with an adhesive and shrinking a sheath formed by wrapping a tieyarn of heat shrinkable material around the bonded end portions.
  • the method is preferably carried out according to the invention by bringing an end portion of one strand into overlapping engagement with an end portion of the other strand, coating the engaging end portions with a solution of a polymeric adhesive, capable of adhering to the strands, in a solvent therefor which is not a solvent for the material of the strands, removing the solvent from the polymeric adhesive to form a bond between the engaging end portions of the strands, covering the bonded end portions by wrapping a heatshrinkable tie-yarn around the bonded end portions to thereby form a spiral sheath, and thereafter shrinking the sheath.
  • the solvent for the adhesive can be removed after the wrapping of the shrinkable tic-yarn sheath, as by heating, so that shrinkage of the sheath occurs simultaneously with solvent removal.
  • FIG. I is a perspective exploded view illustrating a joint being formed by the method of the present invention.
  • FIG. 2 is a perspective view showing the finished joint.
  • each strand may be a continuous monofilament having a denier in the range 100 to 1,500, or may be a yarn composed of such monofilaments.
  • the strands may be formed of yarns composed of lower denier filaments, for example, each yarn may have a yarn denier of 1,000 and a denier per filament of 10.
  • the strands may be composed of filaments which are synthetic or man-made.
  • the strands may be composed, for example, of a polyester or a polyamide, particular examples being poly( ethylene terephthalate) and poly( hexamethylene adiparnide) or the strands may be composed of glass.
  • the level of twist which may, if desired, be imparted to the engaging end portions of the strands need only be low, of the order of 0.5 to 2 turns per inch.
  • a sheath 3 is formed in situ about the overlapped bonded ends of the strands 1,141 by tightly wrapping a shrinkable tie-yarn 4 in spiral form, as indicated by the arrow in FIG. I, around the overlapped portions of the strands, with the ends of the tie-yarn 4 being securely fastened to the overlapped strand portion.
  • the tie-yarn 4 may be a single shrinkable monofilament or a low denier multifilament yarn, nylon or polyester being suitable. Apparatus which may be used for wrapping the tie-yarn is described in UK. Patent Application No. l0432/70.
  • the tie-yarn 4 is then subjected to a shrinkage treatment, for example, a heat treatment, which causes the sheath 3 formed by the tie-yarn 4 to tightly hold and grip the bonded, engaged end portions of the strands 1,111.
  • the wrapping of the tic-yarn 4 is carried out in situ at the overlapped strand portions by imparting progressive spiral movement to the tie-yarn.
  • the operation therefore does not include preforming a sheath and then sliding the sheath longitudinally over the overlapped strand portions.
  • the molecular weight of the polymeric adhesive is chosen so that it forms tough films and yet does not yield solutions which are too viscous to apply to the ends of the strands to be joined.
  • the Intrinsic Viseosity of the adhesive polymer in a solvent therefor is between 0.4 and 0.8 measured at a temperature 0f 25C.
  • the adhesive polymer should not crystallise on heating.
  • the solvent for the adhesive polymer is preferably removed by the application of a stream of heated air to the area of the engaging end portions of the strands.
  • the solvent should be sufficiently volatile to be readily evaporated at a temperature between C. to 230C.
  • the solvent should form free flowing homogeneous solutions of the adhesive polymer at 10% to 30% concentration.
  • the method of the invention is particularly applicable to the joining together of heavy denier strands which are ultimately to be used as reinforced materials in pneumatic tires for motor vehicles.
  • the strength of the jointed strands should be at least 60%, and preferably at least 80%, of the strength of each strand.
  • the jointed strands should be capable of withstanding a stretch of at least 1% at a temperature of 200C. to 240C.
  • the end portions of the strands should be in overlapping engagement of a length of at least 1.25 inches.
  • a heat treatment is used to set the joint, i.e.. to remove the solvent and shrink the sheath.
  • hot air is used for this purpose which preferably has a temperature in the range 180C. to 230C.
  • the denier of the tie-thread should be about 500 denier. Conveniently, this is a 500 denier monofilament.
  • the shrinkage (at 150C. in air) of the tie-yarn should be greater than 6% and preferably greater than 10%.
  • the tension under which the tie-yarn is wound around the end portions of the strands to form a sheath should be above 50 grams. and preferably should be of the order of 200 grams.
  • suitable adhesive is a solution in chloroform of an ethylene terephthalate/sebacate eopolyester having 50 to 80 mole 71 of ethylene tercphthalate in the polymer.
  • a particularly suitable adhesive is a solution of 40/60 moles /1 ethylene isophthalate/tcrephthalate copolymer of Intrinsic Viscosity 0.67 in chloroform at C.
  • a method of forming a joint between the end portions of two continuous strands comprising the steps of: arranging the end portions in overlapping engagement. applying an adhesive only to the end portions to bond the end portions together. wrapping a heat-shrinkable tie-yarn in spiral form around the bonded end portions and shrinking the wrapped tie-yarn around the bonded end portions.
  • each strand is composed of a single monofilament having a denier in the range to 1.500.
  • tie-yarn is a low denier multifilament yarn.
  • each strand is composed of a yarn made from monofilaments having a denier in the range 100 to 500.
  • a method as in claim 1 wherein the strands are formed of a material selected from the group consisting of polyester and polyamide.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The present invention is directed to a method of forming a joint between end portions of two continuous strands, for example, synthetic filament yarns, that are arranged in overlapping engagement by bonding the end portions together with an adhesive material and shrinking a sheath that is formed solely by wrapping a tie-yarn of heat shrinkable material around the ends of the two strands.

Description

United States atent Wra Se t. 9 1975 [54] METHOD OF JOINING CONTINUOUS 2,808,356 /1957 Kimball 57/142 2,953,418 9/1960 Runton et al. 156/85 2,974,559 3/1961 Coggi 156/84 Inventor: Raymond Patrick y, mg 3,012,398 12 1961 Merkle 57 159 England 3,070,947 1/1963 De Toledo ct al 57/159 3,198,059 8/1965 Phaneuf et al 264/1 [73] Ass1gnee: Imperial Chemical Industries 3400481 9/1968, Christenson 56/86 Llmlted, London, England 3,466,210 9/1969 Wareham .1 156/86 3,526,085 9/1970 111man..... 57/159 1221 1972 3,634,972 1/1972 Illmanu... 57/142 [21] App]. No.: 300,874 3,674,581 7/1972 Kalnin ct al. 156/85 Related US. Application Data [63] Continuation-impart of Ser. No. 54,646, July 13, Primary Examiner-Charles E. Van Horn 1970, abandoned. Assistant ExaminerFrank Frisenda 1,, Attorney, Agent, or FirmCushman, Darby & Foreign Application iriority Data Cu hman July 16. 1969 United Kingdom 35772/69 Feb. 20, 1970 United Kingdom..,. 8225/70 Mar. 12. 1970 Unlted Kmgdom 11930/70 [5,7] ST CT 52 U. C1. 156 5' 57 142' 7 159' 1 S 156/15? The present invention 1s dlrected to a method of form [51] Int Cl 2 D02G3/22 B65H 69/06 ing a joint between end portions of two continuous [58] Fie'ld "156/84 294 296 strands, for example, synthetic filament yarns, that are 156/180 303 1 304 172 arranged in overlapping engagement by bonding the 169 5 5 57/142 end portions together with an adhesive material and G 64030 5, f shrinking a sheath that is formed solely by wrapping a 1 l7'4/D[G tie-yarn of heat shrinkable material around the ends of i the two strands.
{56] References Cited UNITED STATES PATENTS 12 Claims, 2 Drawing Figures 2,577,466 12/1951 Jones 156/86 METHOD OF JOINING CONTINUOUS STRANDS CROSS REFERENCE TO RELATED APPLICATION The instant application is a continuation-in-part of US. application Ser. No. 54,646, filed July 13, I970.
The present invention relates to a method of forming a joint between the end portions of two continuous strands arranged in overlapping engagement.
By the expression two continuous strands" is meant two continuous filaments or two continuous filament yarns.
By overlapping engagement is meant that the end portions of the strands are arranged in side-by-side overlapping relationship and, if desired, have a low level of twist imparted thereto. In the case when the strands are composed of continuous filament yarns, the filaments at an end portion of each yarn may be intermingled together to provide overlapping engagement."
In the majority of textile processing operations it is necessary at some stage to join the end of one strand on a bobbin with the end of another strand on another bobbin in order to maintain a continuous supply of the strand. Knotting of the strands is well known but is not particularly attractive, especially when heavier denier strands are being joined because of the known low efficiency and bulkiness of the knots.
In the method according to the present invention an object is to form a joint between end portions of two continuous strands arranged in overlapping engagement by bonding the end portions together with an adhesive and shrinking a sheath formed by wrapping a tieyarn of heat shrinkable material around the bonded end portions. An advantage for a sheath formed exclusivcly by wrapping is that a less bulky joint is produced which, as aforenoted, is more attractive.
The method is preferably carried out according to the invention by bringing an end portion of one strand into overlapping engagement with an end portion of the other strand, coating the engaging end portions with a solution of a polymeric adhesive, capable of adhering to the strands, in a solvent therefor which is not a solvent for the material of the strands, removing the solvent from the polymeric adhesive to form a bond between the engaging end portions of the strands, covering the bonded end portions by wrapping a heatshrinkable tie-yarn around the bonded end portions to thereby form a spiral sheath, and thereafter shrinking the sheath. Alternatively, the solvent for the adhesive can be removed after the wrapping of the shrinkable tic-yarn sheath, as by heating, so that shrinkage of the sheath occurs simultaneously with solvent removal.
Other objects, advantages, and novel features of the invention will become apparent from the following detailed description of the invention when considered in conjunction with the accompanying drawing.
BRIEF DESCRIPTION OF THE DRAWING FIG. I is a perspective exploded view illustrating a joint being formed by the method of the present invention; and
FIG. 2 is a perspective view showing the finished joint.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS in the drawings two strands to be joined are illustrated at l and la in overlapping relationship with their overlapped portions coated with adhesive. Each strand may be a continuous monofilament having a denier in the range 100 to 1,500, or may be a yarn composed of such monofilaments. Alternatively, the strands may be formed of yarns composed of lower denier filaments, for example, each yarn may have a yarn denier of 1,000 and a denier per filament of 10.
The strands may be composed of filaments which are synthetic or man-made. The strands may be composed, for example, of a polyester or a polyamide, particular examples being poly( ethylene terephthalate) and poly( hexamethylene adiparnide) or the strands may be composed of glass.
The level of twist which may, if desired, be imparted to the engaging end portions of the strands need only be low, of the order of 0.5 to 2 turns per inch.
A sheath 3 is formed in situ about the overlapped bonded ends of the strands 1,141 by tightly wrapping a shrinkable tie-yarn 4 in spiral form, as indicated by the arrow in FIG. I, around the overlapped portions of the strands, with the ends of the tie-yarn 4 being securely fastened to the overlapped strand portion. The tie-yarn 4 may be a single shrinkable monofilament or a low denier multifilament yarn, nylon or polyester being suitable. Apparatus which may be used for wrapping the tie-yarn is described in UK. Patent Application No. l0432/70. The tie-yarn 4 is then subjected to a shrinkage treatment, for example, a heat treatment, which causes the sheath 3 formed by the tie-yarn 4 to tightly hold and grip the bonded, engaged end portions of the strands 1,111.
It will be understood from the above that the wrapping of the tic-yarn 4 is carried out in situ at the overlapped strand portions by imparting progressive spiral movement to the tie-yarn. The operation therefore does not include preforming a sheath and then sliding the sheath longitudinally over the overlapped strand portions.
The molecular weight of the polymeric adhesive is chosen so that it forms tough films and yet does not yield solutions which are too viscous to apply to the ends of the strands to be joined. Preferably, the Intrinsic Viseosity of the adhesive polymer in a solvent therefor is between 0.4 and 0.8 measured at a temperature 0f 25C. Furthermore, the adhesive polymer should not crystallise on heating.
The solvent for the adhesive polymer is preferably removed by the application of a stream of heated air to the area of the engaging end portions of the strands. For this purpose, the solvent should be sufficiently volatile to be readily evaporated at a temperature between C. to 230C. Desirably, the solvent should form free flowing homogeneous solutions of the adhesive polymer at 10% to 30% concentration.
The method of the invention is particularly applicable to the joining together of heavy denier strands which are ultimately to be used as reinforced materials in pneumatic tires for motor vehicles. For this particular application it has been found that the strength of the jointed strands should be at least 60%, and preferably at least 80%, of the strength of each strand. Also, the jointed strands should be capable of withstanding a stretch of at least 1% at a temperature of 200C. to 240C.
Typical conditions which have been found to enable such requirements to be achieved are:
a. The end portions of the strands should be in overlapping engagement of a length of at least 1.25 inches.
b. An application of the adhesive solution sufficient to cover the whole of the surface area of the joint.
0. A heat treatment is used to set the joint, i.e.. to remove the solvent and shrink the sheath. Conveniently. hot air is used for this purpose which preferably has a temperature in the range 180C. to 230C.
:1. The denier of the tie-thread should be about 500 denier. Conveniently, this is a 500 denier monofilament.
0. The shrinkage (at 150C. in air) of the tie-yarn should be greater than 6% and preferably greater than 10%.
f. The tension under which the tie-yarn is wound around the end portions of the strands to form a sheath should be above 50 grams. and preferably should be of the order of 200 grams.
For strands composed of poly(ethylene terephthalate) or glass, at suitable adhesive is a solution in chloroform of an ethylene terephthalate/sebacate eopolyester having 50 to 80 mole 71 of ethylene tercphthalate in the polymer. A particularly suitable adhesive is a solution of 40/60 moles /1 ethylene isophthalate/tcrephthalate copolymer of Intrinsic Viscosity 0.67 in chloroform at C.
It will of course be understood that various changes may be made in the form, details, arrangement and pro portions of the components without departing from the scope of the invention.
What is claimed as novel and unobvious and desired to be protected by Letters Patent is set forth in the appended claims.
What is claimed is:
1. A method of forming a joint between the end portions of two continuous strands comprising the steps of: arranging the end portions in overlapping engagement. applying an adhesive only to the end portions to bond the end portions together. wrapping a heat-shrinkable tie-yarn in spiral form around the bonded end portions and shrinking the wrapped tie-yarn around the bonded end portions.
2. A method of forming a joint as claimed in claim 1, including bringing an end portion of one strand into overlapping engagement with an end portion of the other strand, coating the engaging end portions with a solution of a polymeric adhesive, capable of adhering to the strands, in a solvent therefor which is not a solvent for the material of the strands. removing the solvent from the polymeric adhesive to form a bond between the engaging end portions of the strands, and then carrying out the wrapping and shrinking steps.
3. A method of forming ajoint as claimed in claim 1, including bringing an end portion of one strand into overlapping engagement with an end portion of the other strand, coating the engaging end portions with a solution of a polymeric adhesive. capable of adhering to the strands, in a solvent therefor which is not a solvent for the material of the strands, carrying out the wrapping step, removing the solvent from the polymeric adhesive to form a bond between the engaging end portions and simultaneously shrinking the wrapped tie-yarn.
4. A method of forming a joint as claimed in claim 1 wherein a heat treatment is used to remove the solvent and shrink the tie-yarn.
5. A method of forming a joint as claimed in claim 4 wherein the heat treatment utilises a stream of hot air at a temperature in the range C. to 230C.
6. A method of forming a joint as claimed in claim 1 wherein the tieyarn is a shrinkable monofilament.
7. A method of forming a joint as claimed in claim 1 wherein the tie-yarn has a shrinkage greater than 6%, in air at 150C.
8. A method of forming ajoint as claimed in claim 1 wherein each strand is composed of a single monofilament having a denier in the range to 1.500.
9. A method of making a joint as claimed in claim 1 wherein the strands are formed of glass.
10. A method as in claim 1 wherein the tie-yarn is a low denier multifilament yarn.
11!. A method as in claim 1 wherein each strand is composed of a yarn made from monofilaments having a denier in the range 100 to 500.
12. A method as in claim 1 wherein the strands are formed ofa material selected from the group consisting of polyester and polyamide.

Claims (12)

1. A METHOD OF FORMING A JOINT BETWEEN THE END PORTIONS OF TWO CONTINUOUS STRANDS COMPRISING THE STEPS OF ARRANGING THE END PORTIONS IN OVERLAPPING ENGAGEMENT, APPLYING AN ADHESIVE ONLY TO THE END PORTIONS TO BOND THE END PORTIONS TOGETHER, WRAPPING A HEAT-SHRINKABLE TIE-YARN IN SPIRAL FORM AROUND THE BONDED END PORTIONS AND SHRINKING THE WRAPPED TIE-YARN AROUND THE BONDED END PORTIONS.
2. A method of forming a joint as claimed in claim 1, including bringing an end portion of one strand into overlapping engagement with an end portion of the other strand, coating the engaging end portions with a solution of a polymeric adhesive, capable of adhering to the strands, in a solvent therefor which is not a solvent for the material of the strands, removing the solvent from the polymeric adhesive to form a bond between the engaging end portions of the strands, and then carrying out the wrapping and shrinking steps.
3. A method of forming a joint as claimed in claim 1, including bringing an end portion of one strand into overlapping engagement with an end portion of the other strand, coating the engaging end portions with a solution of a polymeric adhesive, capable of adhering to the strands, in a solvent therefor which is not a solvent for the material of the strands, carrying out the wrapping step, removing the solvent from the polymeric adhesive to form a bond between the engaging end portions and simultaneously shrinking the wrapped tie-yarn.
4. A method of forming a joint as claimed in claim 1 wherein a heat treatment is used to remove the solvent and shrink the tie-yarn.
5. A method of forming a joint as claimed in claim 4 wherein the heat treatment utilises a stream of hot air at a temperature in the range 80*C. to 230*C.
6. A method of forming a joint as claimed in claim 1 wherein the tie-yarn is a shrinkable monofilament.
7. A method of forming a joint as claimed in claim 1 wherein the tie-yarn has a shrinkage greater than 6%, in air at 150*C.
8. A method of forming a joint as claimed in claim 1 wherein each strand is composeD of a single monofilament having a denier in the range 100 to 1,500.
9. A method of making a joint as claimed in claim 1 wherein the strands are formed of glass.
10. A method as in claim 1 wherein the tie-yarn is a low denier multifilament yarn.
11. A method as in claim 1 wherein each strand is composed of a yarn made from monofilaments having a denier in the range 100 to 500.
12. A method as in claim 1 wherein the strands are formed of a material selected from the group consisting of polyester and polyamide.
US300874A 1969-07-16 1972-10-25 Method of joining continuous strands Expired - Lifetime US3904458A (en)

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GB822570 1970-02-20
GB1193070 1970-03-12
US5464670A 1970-07-13 1970-07-13
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Cited By (33)

* Cited by examiner, † Cited by third party
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US4032176A (en) * 1975-09-05 1977-06-28 Viscora Method of assembling seamless flexible tubing and the tubular assembly of lengths of such tubing
US4043851A (en) * 1975-12-23 1977-08-23 Southwire Company Method and apparatus for continuous production of NM cable
US4076226A (en) * 1976-09-02 1978-02-28 E. I. Du Pont De Nemours And Company Energy absorbing mechanism
US4191009A (en) * 1977-11-11 1980-03-04 Cable Belt Limited Ropes and the like
US4357041A (en) * 1980-06-06 1982-11-02 James C. W. Chien Elastomeric energy absorbing system
US4421818A (en) * 1982-04-12 1983-12-20 The Procter & Gamble Company Articulated fabric formed by self-assembling fibers
US4428992A (en) 1981-11-21 1984-01-31 Hitco Method of splicing reinforcement fiber
US4441947A (en) * 1982-04-12 1984-04-10 The Procter & Gamble Company Articulated fabric formed by self-assembling fibers
WO2001064569A2 (en) * 2000-03-02 2001-09-07 Owens Corning A package of strand and a method and apparatus for manufacturing the same
WO2003053834A1 (en) * 2001-12-13 2003-07-03 Stäubli Ag Pfäffikon Method and device for connecting a plurality of threads, especially the ends of threads
US20050130531A1 (en) * 2003-12-10 2005-06-16 O'connor Joseph G. Novel methods of seaming
KR100615883B1 (en) 2005-03-30 2006-08-25 제일모직주식회사 Method of knotting cut yarns
EP1712506A1 (en) * 2000-03-02 2006-10-18 Owens Corning A package of strand and a method and apparatus for manufacturing the same
US20110027524A1 (en) * 2009-07-29 2011-02-03 Creig Dean Bowland Spliced Fiber Glass Rovings And Methods And Systems For Splicing Fiber Glass Rovings
FR2959443A1 (en) * 2010-04-29 2011-11-04 Messier Dowty Sa Method for splicing strands of fibers e.g. glass fibers, utilized in fabrication of braided/woven preforms, involves pressing and heating thermoactivable binder so as to form sectioned sleeves that completely cover free ends around strands
US8511053B2 (en) 2008-06-04 2013-08-20 Samson Rope Technologies Synthetic rope formed of blend fibers
US8689534B1 (en) 2013-03-06 2014-04-08 Samson Rope Technologies Segmented synthetic rope structures, systems, and methods
US8707668B2 (en) 2003-12-16 2014-04-29 Samson Rope Technologies Wrapped yarns for use in ropes having predetermined surface characteristics
US8707666B2 (en) 2011-03-29 2014-04-29 Samson Rope Technologies Short splice systems and methods for ropes
CN104291165A (en) * 2014-10-23 2015-01-21 吴江市江南不锈钢器材有限责任公司 Metal knotter
US9003757B2 (en) 2012-09-12 2015-04-14 Samson Rope Technologies Rope systems and methods for use as a round sling
US9074318B2 (en) 2005-09-15 2015-07-07 Samson Rope Technologies Rope structure with improved bending fatigue and abrasion resistance characteristics
US20150258854A1 (en) * 2012-10-18 2015-09-17 Kordsa Global Endustriyel Iplik Ve Kord Bezi Sanayi Ve Ticaret Anonim Sirketi Tire cord fabric and production method thereof
US20160024710A1 (en) * 2012-08-03 2016-01-28 Arcelormittal Wire France Method for production of a closed-loop cable by splicing
US9340925B2 (en) 2013-03-15 2016-05-17 Samson Rope Technologies Splice systems and methods for ropes
US9573661B1 (en) 2015-07-16 2017-02-21 Samson Rope Technologies Systems and methods for controlling recoil of rope under failure conditions
US10216165B2 (en) 2016-09-06 2019-02-26 Cc3D Llc Systems and methods for controlling additive manufacturing
US20190062209A1 (en) * 2017-02-09 2019-02-28 Jushi Group Co., Ltd. Method for knotting glass fiber bundles and spliced glass fiber bundle
US10377607B2 (en) 2016-04-30 2019-08-13 Samson Rope Technologies Rope systems and methods for use as a round sling
CN110857195A (en) * 2018-08-23 2020-03-03 宁波方太厨具有限公司 Rapid hollow fiber membrane wire connecting device and wire connecting method
CN111235713A (en) * 2020-03-18 2020-06-05 殷石 Knotted high-performance synthetic fiber bundle
EP3546627A4 (en) * 2017-12-11 2020-07-08 Nitto Boseki Co., Ltd. Glass fiber yarn connected body
US11760029B2 (en) 2020-06-23 2023-09-19 Continuous Composites Inc. Systems and methods for controlling additive manufacturing

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US4357041A (en) * 1980-06-06 1982-11-02 James C. W. Chien Elastomeric energy absorbing system
US4428992A (en) 1981-11-21 1984-01-31 Hitco Method of splicing reinforcement fiber
US4421818A (en) * 1982-04-12 1983-12-20 The Procter & Gamble Company Articulated fabric formed by self-assembling fibers
US4441947A (en) * 1982-04-12 1984-04-10 The Procter & Gamble Company Articulated fabric formed by self-assembling fibers
EP1712506A1 (en) * 2000-03-02 2006-10-18 Owens Corning A package of strand and a method and apparatus for manufacturing the same
WO2001064569A3 (en) * 2000-03-02 2002-07-25 Owens Corning Fiberglass Corp A package of strand and a method and apparatus for manufacturing the same
WO2001064569A2 (en) * 2000-03-02 2001-09-07 Owens Corning A package of strand and a method and apparatus for manufacturing the same
WO2003053834A1 (en) * 2001-12-13 2003-07-03 Stäubli Ag Pfäffikon Method and device for connecting a plurality of threads, especially the ends of threads
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US20050130531A1 (en) * 2003-12-10 2005-06-16 O'connor Joseph G. Novel methods of seaming
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US9404203B2 (en) 2003-12-16 2016-08-02 Samson Rope Technologies Wrapped yarns for use in ropes having predetermined surface characteristics
US8707668B2 (en) 2003-12-16 2014-04-29 Samson Rope Technologies Wrapped yarns for use in ropes having predetermined surface characteristics
KR100615883B1 (en) 2005-03-30 2006-08-25 제일모직주식회사 Method of knotting cut yarns
US9074318B2 (en) 2005-09-15 2015-07-07 Samson Rope Technologies Rope structure with improved bending fatigue and abrasion resistance characteristics
US9982386B2 (en) 2005-09-15 2018-05-29 Samson Rope Technologies Rope structure with improved bending fatigue and abrasion resistance characteristics
US8511053B2 (en) 2008-06-04 2013-08-20 Samson Rope Technologies Synthetic rope formed of blend fibers
US8505271B2 (en) * 2009-07-29 2013-08-13 Ppg Industries Ohio, Inc. Spliced fiber glass rovings and methods and systems for splicing fiber glass rovings
US20110027524A1 (en) * 2009-07-29 2011-02-03 Creig Dean Bowland Spliced Fiber Glass Rovings And Methods And Systems For Splicing Fiber Glass Rovings
FR2959443A1 (en) * 2010-04-29 2011-11-04 Messier Dowty Sa Method for splicing strands of fibers e.g. glass fibers, utilized in fabrication of braided/woven preforms, involves pressing and heating thermoactivable binder so as to form sectioned sleeves that completely cover free ends around strands
US8707666B2 (en) 2011-03-29 2014-04-29 Samson Rope Technologies Short splice systems and methods for ropes
US10344427B2 (en) * 2012-08-03 2019-07-09 Arcelormittal Wire France Method for production of a closed-loop cable by splicing
US20160024710A1 (en) * 2012-08-03 2016-01-28 Arcelormittal Wire France Method for production of a closed-loop cable by splicing
US9003757B2 (en) 2012-09-12 2015-04-14 Samson Rope Technologies Rope systems and methods for use as a round sling
US20150258854A1 (en) * 2012-10-18 2015-09-17 Kordsa Global Endustriyel Iplik Ve Kord Bezi Sanayi Ve Ticaret Anonim Sirketi Tire cord fabric and production method thereof
US8689534B1 (en) 2013-03-06 2014-04-08 Samson Rope Technologies Segmented synthetic rope structures, systems, and methods
US9261167B2 (en) 2013-03-06 2016-02-16 Samson Rope Technologies Segmented synthetic rope structures, systems, and methods
US9340925B2 (en) 2013-03-15 2016-05-17 Samson Rope Technologies Splice systems and methods for ropes
CN104291165A (en) * 2014-10-23 2015-01-21 吴江市江南不锈钢器材有限责任公司 Metal knotter
US9573661B1 (en) 2015-07-16 2017-02-21 Samson Rope Technologies Systems and methods for controlling recoil of rope under failure conditions
US10377607B2 (en) 2016-04-30 2019-08-13 Samson Rope Technologies Rope systems and methods for use as a round sling
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US20190062209A1 (en) * 2017-02-09 2019-02-28 Jushi Group Co., Ltd. Method for knotting glass fiber bundles and spliced glass fiber bundle
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