US3035476A - Braided cord - Google Patents
Braided cord Download PDFInfo
- Publication number
- US3035476A US3035476A US91252A US9125261A US3035476A US 3035476 A US3035476 A US 3035476A US 91252 A US91252 A US 91252A US 9125261 A US9125261 A US 9125261A US 3035476 A US3035476 A US 3035476A
- Authority
- US
- United States
- Prior art keywords
- cord
- cover
- strands
- core
- braided
- 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
- D07B1/00—Constructional features of ropes or cables
- D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04D—TRIMMINGS; RIBBONS, TAPES OR BANDS, NOT OTHERWISE PROVIDED FOR
- D04D1/00—Ropes or like decorative or ornamental elongated trimmings made from filamentary material
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/1096—Rope or cable structures braided
Definitions
- This invention relates generally to cordage, and is more particularly concerned with a braided cordage construction which has unusually high resistance to snagging and abras-ion, together with excellent strength characteristics.
- the resistance of the line to snagging and abrasion is as important as its breaking strength.
- Lines that are used with Winches, purse lines for commercial fishing operations, and drop hammer lines are but a few examples of instances where high abrasion resistance is particularly important.
- braided cord comprising a large number of exposed strands has certain advantages over ordinary twisted rope because of its relatively smooth surface.
- a braided construction it is possible to make use of a core of one kind of material which is noted for its strength, and a 'cover of another kind of material, which, although not as strong as the core material, nevertheless has especially good resistance to the elements and to abrasion.
- FIG. 1 is an elevation of a double braided cord, the cover being partly broken away for purposes of illustration;
- FIG. 2 is an elevation of the component strands of the cover
- FIG. 3 is an elevation of the component strands of the core
- FIG. 4 is a sectional View taken on line 4 4 of FIG. l;
- FIG. 5 is a diagrammatic view of a portion of the cord of FIG. 1 illustrating the orientation of the cover filaments.
- the core 2 is comprised of higher elongation ilaments such as higher elongation filaments o-f nylon, polyvinyl alcohol or
- the cover 4 is made of unplied ends 10 having no twist or only a negligible degree of twist, such as a manu facturers twist.
- the ends 1t) consist of lower elongation lilaments of lower elongation than those of the core, such as Daeron or other lower elongation ilaments.
- each strand 12 of the cover 4 has associated with it another strand ot like character which describes the same convolutions throughout the braid.
- Each such pair of strands constitutes a double strand 12', of which there are twenty in the cover.
- the size of each of the ends 10 which are twisted together to form a cover strand 12 is 1100 denier.
- the core strands are loosely braided together and the cover strands are tightly braided together.
- the core increases in length und'er load less than it would with a tighter braid.
- the tight braiding of the cover causes it to increase in length under load to a greater extent than it would with a looser braid.
- What I mean by a tight braid, for the cover is a Ibraid Ihaving a pick ratio in the range 2 to 5 inclusive
- what I mean by a loose braid for the core is la braid having a pick ratio in the range 6 to l5, inclusive.
- the term pick ratio meansthe number of picks per revolution of the braider divided by the number of picks per inch of length of the cord times the diameter in inches of the braid.
- the pick ratio for an eight strand braid is i PD and for a twenty-strand braid, as described herein for the cover, Ithe pick ratio is wherein F is the pick ratio, P is the number of picks per inch measured lengthwise of the braid, and D is the braid diameter in inches, all measurements being taken with the cord under the standard tension of 200 D2 pounds, where D again is the diameter of the cord in inches.
- the amount of twist used in forming the ends 10 into a cover strand 12 is such that the helical angle of the filaments is substantially equal and opposite to the helical angle of the strands 12 when braided into the cord.
- the portions of the filaments on the surface of the cord are so disposed as to be substantially aligned with the axis of the cord.
- one-half of all the double strands 12 (each composed of two strands 12) to be used in making the cover have their ends 10 twisted together in one direction about 2.9 turns per inch, While the other half of the double strands have their ends twisted the same amount but in the opposite direction.
- the helical angle, 0, of the cover strands for which this amount of twist is adapted to compensate is 42 (referred to the cord axis) and may be found from the formula Jcan 0:5;-
- the strands which have their ends twisted in one direction are braided into the cover along a helix of one hand and the other half, which have their ends twisted in the opposite direction, are braided into the cover along a helix of the opposite hand.
- the direction or hand of the helix of each strand is such as to bring the portions of the iilaments on the surface of the cord substantially into parallelism with the cord axis.
- a cord construction especially adapted to resist snagging and abrasion comprising a core of ends arranged in strands that are braided together to form an interlocked bundle, and a cover of ends essentially composed of filaments, the ends of the cover being arranged in strands that are braided together over said core, each of said ends in a said cover strand being disposed at a helical angle within the strand that is equal and opposite tothe helical angle of said strand in the cord whereby the portions of the laments at the surface of the cord extend substantially parallel to the axis of the cord.
- a cord construction especially adapted to resist snagging and abrasion comprising a core of higher elongationV ends arranged in strands that are braided together to form an interlocked bundle, and a cover of ends composed essentially of lower elongation iilarnents, the ends of the cover being arranged in strands that are braided together over said core, each of said cover ends in a said cover strand being disposed at a helical angle in the strand that is equal and opposite to the helical angle of the strand in the cord, whereby the portions of the laments at the surface of the cover extend substantially parallel to the axis of the cord.
- a cord construction especially adapted to resist snagging and abrasion comprising a core of ends arranged in strands that are braided together to form an interlocked bundle, and a cover of ends composed of filaments, said ends of the cover being arranged in groups of strands that are braided together over said core, the strands in each of said groups being disposed side by side throughout the braid, and each of said ends in a said group being disposed at a helical angle in the strand which is equal and opposite to the helical angle of the strands of the group in the cord, whereby the portions of the filaments at the surface of the cord extend substantially parallel to the axis of the cord.
- a cord construction of high tensile strength and especially adapted to resist snagging and abrasion comprising a core of ends of higher elongation filaments arranged in strands that are braided together to form an interlocked bundle, said core braid having a pick ratio in the range 6 to l5, and a cover of ends composed of filaments of lower elongation than said core filaments, said cover ends being arranged in strands that are braided together over said core, said cover braid having a pick ratio in the range 2 to 5, each of said ends in a said cover strand being disposed at a helical angle within the strand that is equal and opposite to the helical angle of said strand in the cord, whereby the portions of the filaments at the surface of the cord extend substantially parallel to the axis of the cord.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ropes Or Cables (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US91252A US3035476A (en) | 1961-02-23 | 1961-02-23 | Braided cord |
BE678569D BE678569A (ro) | 1961-02-23 | 1966-03-28 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US91252A US3035476A (en) | 1961-02-23 | 1961-02-23 | Braided cord |
BE678569 | 1966-03-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3035476A true US3035476A (en) | 1962-05-22 |
Family
ID=25656394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US91252A Expired - Lifetime US3035476A (en) | 1961-02-23 | 1961-02-23 | Braided cord |
Country Status (2)
Country | Link |
---|---|
US (1) | US3035476A (ro) |
BE (1) | BE678569A (ro) |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3187752A (en) * | 1962-04-27 | 1965-06-08 | American Cyanamid Co | Non-absorbable silicone coated sutures and method of making |
US3366001A (en) * | 1964-12-11 | 1968-01-30 | Johns Manville | High strength-high temperature yarn |
US3561318A (en) * | 1969-05-14 | 1971-02-09 | Wellington Puritan Mills Inc | Elongated braided rope and method for producing the same |
US3828544A (en) * | 1971-10-04 | 1974-08-13 | Olbo Textilwerke Gmbh Fa | Two-component yarns |
US3968725A (en) * | 1974-12-13 | 1976-07-13 | Berkley & Company, Inc. | High strength, low stretch braided rope |
US4170921A (en) * | 1978-03-17 | 1979-10-16 | New England Ropes, Inc. | Braided rope |
US4321854A (en) * | 1979-06-01 | 1982-03-30 | Berkley & Company, Inc. | Composite line of core and jacket |
US5449361A (en) * | 1993-04-21 | 1995-09-12 | Amei Technologies Inc. | Orthopedic cable tensioner |
US5476465A (en) * | 1993-04-21 | 1995-12-19 | Amei Technologies Inc. | Surgical cable crimp |
US5540698A (en) * | 1993-04-21 | 1996-07-30 | Amei Technologies Inc. | System and method for securing a medical cable |
US5934168A (en) * | 1996-05-20 | 1999-08-10 | Teufelberger Gesellschaft Mbh | Rope for the taking along and transferring of paper webs in the manufacture of paper and cardboard on paper machines |
US6231941B1 (en) * | 1998-07-14 | 2001-05-15 | The Boeing Company | Radius fillers for a resin transfer molding process |
US6796008B1 (en) * | 2003-02-10 | 2004-09-28 | Kae Sheng Webbing Co., Ltd. | Reflectorized lace and the like |
US20040250875A1 (en) * | 2003-05-29 | 2004-12-16 | Invision Investments, Inc. | Purging system for a liquid dispensing nozzle |
US7703372B1 (en) | 2007-08-14 | 2010-04-27 | New England Ropes Corp. | Climbing rope |
US20100162882A1 (en) * | 2007-08-14 | 2010-07-01 | Shakespeare William C | Arborist's climbing rope |
US8511053B2 (en) | 2008-06-04 | 2013-08-20 | Samson Rope Technologies | Synthetic rope formed of blend fibers |
USD695970S1 (en) * | 2011-09-23 | 2013-12-17 | Jennifer Beinke | Leash |
USD695975S1 (en) * | 2011-09-23 | 2013-12-17 | Jennifer Beinke | Adjustable collar |
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 |
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 |
US20150237951A1 (en) * | 2014-02-24 | 2015-08-27 | Henry Lucius Hilderbrand, IV | Grip-Enhancing Shoelace, Shoe Therefor, and Methods of Manufacturing the Same |
US9573661B1 (en) | 2015-07-16 | 2017-02-21 | Samson Rope Technologies | Systems and methods for controlling recoil of rope under failure conditions |
EP2573257B1 (en) | 2010-05-17 | 2017-11-08 | Kiswire Ltd. | Hybrid rope and process for producing same |
US10377607B2 (en) | 2016-04-30 | 2019-08-13 | Samson Rope Technologies | Rope systems and methods for use as a round sling |
US20220167976A1 (en) * | 2018-01-23 | 2022-06-02 | Kuraray Co., Ltd. | Small diameter fiber braid with central core member |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB189518422A (en) * | 1895-10-02 | 1896-09-26 | Johann Teodor Haase | Improvements in the Manufacture of Wire Ropes. |
US1373632A (en) * | 1920-08-25 | 1921-04-05 | American Steel & Wire Co | Wire rope |
US2195592A (en) * | 1936-01-16 | 1940-04-02 | American Steel & Wire Co | Cordage structure and method of making same |
-
1961
- 1961-02-23 US US91252A patent/US3035476A/en not_active Expired - Lifetime
-
1966
- 1966-03-28 BE BE678569D patent/BE678569A/xx unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB189518422A (en) * | 1895-10-02 | 1896-09-26 | Johann Teodor Haase | Improvements in the Manufacture of Wire Ropes. |
US1373632A (en) * | 1920-08-25 | 1921-04-05 | American Steel & Wire Co | Wire rope |
US2195592A (en) * | 1936-01-16 | 1940-04-02 | American Steel & Wire Co | Cordage structure and method of making same |
Cited By (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3187752A (en) * | 1962-04-27 | 1965-06-08 | American Cyanamid Co | Non-absorbable silicone coated sutures and method of making |
US3366001A (en) * | 1964-12-11 | 1968-01-30 | Johns Manville | High strength-high temperature yarn |
US3561318A (en) * | 1969-05-14 | 1971-02-09 | Wellington Puritan Mills Inc | Elongated braided rope and method for producing the same |
US3828544A (en) * | 1971-10-04 | 1974-08-13 | Olbo Textilwerke Gmbh Fa | Two-component yarns |
US3968725A (en) * | 1974-12-13 | 1976-07-13 | Berkley & Company, Inc. | High strength, low stretch braided rope |
US4170921A (en) * | 1978-03-17 | 1979-10-16 | New England Ropes, Inc. | Braided rope |
US4321854A (en) * | 1979-06-01 | 1982-03-30 | Berkley & Company, Inc. | Composite line of core and jacket |
US5449361A (en) * | 1993-04-21 | 1995-09-12 | Amei Technologies Inc. | Orthopedic cable tensioner |
US5476465A (en) * | 1993-04-21 | 1995-12-19 | Amei Technologies Inc. | Surgical cable crimp |
US5540698A (en) * | 1993-04-21 | 1996-07-30 | Amei Technologies Inc. | System and method for securing a medical cable |
KR100430985B1 (ko) * | 1996-05-20 | 2004-09-07 | 토이펠베르거 게젤샤프트 엠. 베. 하. | 제지기로종이및판지를제조하는데있어서종이웨브의운반및이송용로프 |
US5934168A (en) * | 1996-05-20 | 1999-08-10 | Teufelberger Gesellschaft Mbh | Rope for the taking along and transferring of paper webs in the manufacture of paper and cardboard on paper machines |
US6872340B2 (en) | 1998-07-14 | 2005-03-29 | The Boeing Company | Resin transfer molding process |
US7147895B2 (en) | 1998-07-14 | 2006-12-12 | The Boeing Company | Resin transfer molding process |
US20040150130A1 (en) * | 1998-07-14 | 2004-08-05 | The Boeing Company | Resin transfer molding process |
US6589618B2 (en) | 1998-07-14 | 2003-07-08 | The Boeing Company | Resin transfer molding process |
US20030183067A1 (en) * | 1998-07-14 | 2003-10-02 | The Boeing Company | Resin transfer molding process |
US6231941B1 (en) * | 1998-07-14 | 2001-05-15 | The Boeing Company | Radius fillers for a resin transfer molding process |
US6796008B1 (en) * | 2003-02-10 | 2004-09-28 | Kae Sheng Webbing Co., Ltd. | Reflectorized lace and the like |
US20040250875A1 (en) * | 2003-05-29 | 2004-12-16 | Invision Investments, Inc. | Purging system for a liquid dispensing nozzle |
US8707668B2 (en) | 2003-12-16 | 2014-04-29 | Samson Rope Technologies | Wrapped yarns for use in ropes having predetermined surface characteristics |
US9404203B2 (en) | 2003-12-16 | 2016-08-02 | Samson Rope Technologies | Wrapped yarns for use in ropes having predetermined surface characteristics |
US9982386B2 (en) | 2005-09-15 | 2018-05-29 | Samson Rope Technologies | Rope structure with improved bending fatigue and abrasion resistance characteristics |
US9074318B2 (en) | 2005-09-15 | 2015-07-07 | Samson Rope Technologies | Rope structure with improved bending fatigue and abrasion resistance characteristics |
US7703372B1 (en) | 2007-08-14 | 2010-04-27 | New England Ropes Corp. | Climbing rope |
US20100162882A1 (en) * | 2007-08-14 | 2010-07-01 | Shakespeare William C | Arborist's climbing rope |
US8136438B2 (en) | 2007-08-14 | 2012-03-20 | New England Ropes Corp. | Arborist's climbing rope |
US8511053B2 (en) | 2008-06-04 | 2013-08-20 | Samson Rope Technologies | Synthetic rope formed of blend fibers |
EP2573257B1 (en) | 2010-05-17 | 2017-11-08 | Kiswire Ltd. | Hybrid rope and process for producing same |
USD695975S1 (en) * | 2011-09-23 | 2013-12-17 | Jennifer Beinke | Adjustable collar |
USD695970S1 (en) * | 2011-09-23 | 2013-12-17 | Jennifer Beinke | Leash |
US9003757B2 (en) | 2012-09-12 | 2015-04-14 | Samson Rope Technologies | Rope systems and methods for use as a round sling |
US9261167B2 (en) | 2013-03-06 | 2016-02-16 | Samson Rope Technologies | Segmented synthetic rope structures, systems, and methods |
US8689534B1 (en) | 2013-03-06 | 2014-04-08 | Samson Rope Technologies | Segmented synthetic rope structures, systems, and methods |
US20150237951A1 (en) * | 2014-02-24 | 2015-08-27 | Henry Lucius Hilderbrand, IV | Grip-Enhancing Shoelace, Shoe Therefor, and Methods of Manufacturing the Same |
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 |
US20220167976A1 (en) * | 2018-01-23 | 2022-06-02 | Kuraray Co., Ltd. | Small diameter fiber braid with central core member |
Also Published As
Publication number | Publication date |
---|---|
BE678569A (ro) | 1966-09-01 |
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