US3274765A - Stranded rope comprising endless, synthetic plastic threads - Google Patents

Stranded rope comprising endless, synthetic plastic threads Download PDF

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Publication number
US3274765A
US3274765A US465055A US46505565A US3274765A US 3274765 A US3274765 A US 3274765A US 465055 A US465055 A US 465055A US 46505565 A US46505565 A US 46505565A US 3274765 A US3274765 A US 3274765A
Authority
US
United States
Prior art keywords
rope
stranded
threads
stranded rope
filaments
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
Application number
US465055A
Other languages
English (en)
Inventor
Hartmann Karl
Schmittmann Hans-Richard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to NL125007D priority Critical patent/NL125007C/xx
Priority to DEF43438A priority patent/DE1242479B/de
Priority to CH827865A priority patent/CH455578A/de
Application filed by Bayer AG filed Critical Bayer AG
Priority to US465055A priority patent/US3274765A/en
Priority to IL23757A priority patent/IL23757A/xx
Priority to AT557765A priority patent/AT253992B/de
Priority to GB26375/65A priority patent/GB1049555A/en
Priority to SE9038/65A priority patent/SE308264B/xx
Priority to FR24009A priority patent/FR1439646A/fr
Priority to LU49016A priority patent/LU49016A1/xx
Priority to FI651623A priority patent/FI41243C/fi
Priority to BE666634D priority patent/BE666634A/xx
Priority to NO65158931A priority patent/NO119780B/no
Priority to NL6509109A priority patent/NL6509109A/xx
Priority to DK361165AA priority patent/DK125100B/da
Application granted granted Critical
Publication of US3274765A publication Critical patent/US3274765A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
    • D07B1/167—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay having a predetermined shape
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
    • 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
    • D07B2201/1012—Rope or cable structures characterised by their internal structure
    • D07B2201/102—Rope or cable structures characterised by their internal structure including a core
    • 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
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2015—Strands
    • D07B2201/2023—Strands with core
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2015—Strands
    • D07B2201/2036—Strands characterised by the use of different wires or filaments
    • D07B2201/2037—Strands characterised by the use of different wires or filaments regarding the dimension of the wires or filaments
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2015—Strands
    • D07B2201/2041—Strands characterised by the materials used
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2055—Cores characterised by their structure comprising filaments or fibers
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/2065—Reducing wear
    • D07B2401/207—Reducing wear internally
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/2065—Reducing wear
    • D07B2401/2075—Reducing wear externally

Definitions

  • the invention relates to a stranded rope or cable comprising endless, synthetic plastic threads, in which the strands are provided with fibre tows consisting of parallel plastic elementary filaments inserted externally between the surface threads; the tows may optionally be of twisted or braided structure.
  • the fibre tows have a supporting function and thereby increase the breaking load of the rope.
  • the ropes Under high loading and load relaxation, and on account of reversible stretching of threads and fibre tows, the ropes do however have a tendency to slide and slip on, for example, warping drums.
  • frictional heat is evolved and the temperature can very quickly rise to a value at which the plastic surface threads of the stranded rope soften, and the breaking load of the rope is considerably reduced.
  • the fibre tows are inserted in the strands as non-supporting rope elements without initial tension and have a count ratio of 30 to 45% relative to the adjacent surface, and either have a twisted formation with a degree of twisting which results from a twisting constant of /Nm to ZVM advantageously l.35 /Nm to 1.65 /Nm, wherein Nm represents the metric number of the fibre tow, or a braided formation with a braiding angle of 30 to 45.
  • the fluify fleece leads to the rope having a considerably longer effective life.
  • FIGURE 1 is a cross-section through a stranded rope consisting of polyamide, before use
  • FIGURE 2 is a cross-section through the same rope after use when the rope comprises a brush-like fibre fleece.
  • the polyamide stranded rope comprises, for example, 8 strands, each strand comprising a surface layer of 8 plastic threads 1-8, each for example, with a diameter of 4 mm. Inserted without initial tension on the outside of each strand in the gaps between the surface threads 1 to 8, are 8 plastic fibre tows, 9 to 16. Each strand has a core 17 of elementary plastic filaments and the stranded rope has a core 18, which likewise consists of elementary plastic filaments.
  • the plastic fibre tows 9 to 16 likewise consist of elementary plastic filaments which are arranged parallel to one another and which have, as desired, a twisted and/or braided structure.
  • each plastic thread of the surface layer of a strand has a diameter of 4 mm.
  • the running length of this thread is about m/kg., which means that 1000 metres of threads have a weight of 15,400 g. This corresponds to a count of 139,600 denier.
  • the count of the fibre tows 916 must be in the ratio of about 1:3 to that of the adjacent plastic threads 1-8; this means that the fibre tow must have a total count of about 45,000 denier.
  • the fibre tows then have a running length of about 200 m./kg.; this corresponds to a metric number, Nm, of 0.2.
  • a stranded rope of synthetic plastic material comprising strands formed of surface filaments stranded about a core and having fiber tows consisting of parallel elementary plastic filaments inserted externally between the surface filaments wherein said fiber tows in said strands are non-supporting rope elements having substantially no initial tension, said fiber tows being inserted between the surface filaments to prevent wear of said filaments.
  • ZVAT where Nm is the metric number of the fiber tow. Referemes Cit d by th Examiner 5.

Landscapes

  • Ropes Or Cables (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
US465055A 1964-07-15 1965-06-18 Stranded rope comprising endless, synthetic plastic threads Expired - Lifetime US3274765A (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
NL125007D NL125007C (no) 1964-07-15
DEF43438A DE1242479B (de) 1964-07-15 1964-07-15 Litzenseil
CH827865A CH455578A (de) 1964-07-15 1965-06-15 Litzenseil
US465055A US3274765A (en) 1964-07-15 1965-06-18 Stranded rope comprising endless, synthetic plastic threads
IL23757A IL23757A (en) 1964-07-15 1965-06-20 Stranded rope comprising endless,synthetic plastic threads
AT557765A AT253992B (de) 1964-07-15 1965-06-21 Kunststoff-Litzenseil
GB26375/65A GB1049555A (en) 1964-07-15 1965-06-22 Stranded rope comprising endless, synthetic plastic threads
FR24009A FR1439646A (fr) 1964-07-15 1965-07-08 Câble à torons en fils synthétiques sans fin
SE9038/65A SE308264B (no) 1964-07-15 1965-07-08
LU49016A LU49016A1 (no) 1964-07-15 1965-07-08
FI651623A FI41243C (fi) 1964-07-15 1965-07-08 Tekoaine-säieköysi, jonka peitelankojen välisiin uriin on sovitettu täytelangat
BE666634D BE666634A (no) 1964-07-15 1965-07-09
NO65158931A NO119780B (no) 1964-07-15 1965-07-14
NL6509109A NL6509109A (no) 1964-07-15 1965-07-14
DK361165AA DK125100B (da) 1964-07-15 1965-07-14 Formstoflidsetov.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF43438A DE1242479B (de) 1964-07-15 1964-07-15 Litzenseil
US465055A US3274765A (en) 1964-07-15 1965-06-18 Stranded rope comprising endless, synthetic plastic threads

Publications (1)

Publication Number Publication Date
US3274765A true US3274765A (en) 1966-09-27

Family

ID=25976354

Family Applications (1)

Application Number Title Priority Date Filing Date
US465055A Expired - Lifetime US3274765A (en) 1964-07-15 1965-06-18 Stranded rope comprising endless, synthetic plastic threads

Country Status (14)

Country Link
US (1) US3274765A (no)
AT (1) AT253992B (no)
BE (1) BE666634A (no)
CH (1) CH455578A (no)
DE (1) DE1242479B (no)
DK (1) DK125100B (no)
FI (1) FI41243C (no)
FR (1) FR1439646A (no)
GB (1) GB1049555A (no)
IL (1) IL23757A (no)
LU (1) LU49016A1 (no)
NL (2) NL6509109A (no)
NO (1) NO119780B (no)
SE (1) SE308264B (no)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309862A (en) * 1965-11-15 1967-03-21 Wall Ind Inc Rope manufacturing process
US3415052A (en) * 1966-04-12 1968-12-10 American Mfg Company Inc Synthetic plastic rope for automatic devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111001A (en) * 1958-08-14 1963-11-19 Bayer Ag Stranded rope of endless fully synthetic plastic filaments
US3217484A (en) * 1962-08-15 1965-11-16 Koppers Co Inc Filament-wound structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111001A (en) * 1958-08-14 1963-11-19 Bayer Ag Stranded rope of endless fully synthetic plastic filaments
US3217484A (en) * 1962-08-15 1965-11-16 Koppers Co Inc Filament-wound structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309862A (en) * 1965-11-15 1967-03-21 Wall Ind Inc Rope manufacturing process
US3415052A (en) * 1966-04-12 1968-12-10 American Mfg Company Inc Synthetic plastic rope for automatic devices

Also Published As

Publication number Publication date
LU49016A1 (no) 1965-09-08
FR1439646A (fr) 1966-05-20
NL125007C (no) 1900-01-01
SE308264B (no) 1969-02-03
FI41243C (fi) 1969-09-10
NO119780B (no) 1970-06-29
BE666634A (no) 1965-11-03
DK125100B (da) 1972-12-27
CH455578A (de) 1968-07-15
GB1049555A (en) 1966-11-30
IL23757A (en) 1968-10-24
FI41243B (no) 1969-06-02
AT253992B (de) 1967-05-10
DE1242479B (de) 1967-06-15
NL6509109A (no) 1966-01-17

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