GB1565066A – Steel cords
– Google Patents
GB1565066A – Steel cords
– Google Patents
Steel cords
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Info
Publication number
GB1565066A
GB1565066A
GB36917/76A
GB3691776A
GB1565066A
GB 1565066 A
GB1565066 A
GB 1565066A
GB 36917/76 A
GB36917/76 A
GB 36917/76A
GB 3691776 A
GB3691776 A
GB 3691776A
GB 1565066 A
GB1565066 A
GB 1565066A
Authority
GB
United Kingdom
Prior art keywords
steel wire
wire cord
cord according
steel
helix angle
Prior art date
1976-09-07
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
Application number
GB36917/76A
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.)
Dunlop Ltd
Original Assignee
Dunlop Ltd
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.)
1976-09-07
Filing date
1976-09-07
Publication date
1980-04-16
1976-09-07
Application filed by Dunlop Ltd
filed
Critical
Dunlop Ltd
1976-09-07
Priority to GB36917/76A
priority
Critical
patent/GB1565066A/en
1977-09-01
Priority to US05/829,976
priority
patent/US4176513A/en
1977-09-01
Priority to AU28450/77A
priority
patent/AU506413B2/en
1977-09-01
Priority to DE19772739484
priority
patent/DE2739484A1/en
1977-09-02
Priority to SE7709912A
priority
patent/SE7709912L/en
1977-09-02
Priority to ZA00775336A
priority
patent/ZA775336B/en
1977-09-05
Priority to FI772623A
priority
patent/FI58610C/en
1977-09-06
Priority to ES462147A
priority
patent/ES462147A1/en
1977-09-07
Priority to FR7727072A
priority
patent/FR2363651A1/en
1977-09-07
Priority to JP52107661A
priority
patent/JPS5940959B2/en
1980-04-16
Publication of GB1565066A
publication
Critical
patent/GB1565066A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
229910000831
Steel
Inorganic materials
0.000
title
claims
description
34
239000010959
steel
Substances
0.000
title
claims
description
34
230000009467
reduction
Effects
0.000
claims
description
12
238000010276
construction
Methods
0.000
claims
description
5
OKTJSMMVPCPJKN-UHFFFAOYSA-N
Carbon
Chemical compound
[C]
OKTJSMMVPCPJKN-UHFFFAOYSA-N
0.000
claims
description
2
VYZAMTAEIAYCRO-UHFFFAOYSA-N
Chromium
Chemical compound
[Cr]
VYZAMTAEIAYCRO-UHFFFAOYSA-N
0.000
claims
description
2
RYGMFSIKBFXOCR-UHFFFAOYSA-N
Copper
Chemical compound
[Cu]
RYGMFSIKBFXOCR-UHFFFAOYSA-N
0.000
claims
description
2
XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Silicon
Chemical compound
[Si]
XUIMIQQOPSSXEZ-UHFFFAOYSA-N
0.000
claims
description
2
NINIDFKCEFEMDL-UHFFFAOYSA-N
Sulfur
Chemical compound
[S]
NINIDFKCEFEMDL-UHFFFAOYSA-N
0.000
claims
description
2
239000005864
Sulphur
Substances
0.000
claims
description
2
229910052799
carbon
Inorganic materials
0.000
claims
description
2
229910052804
chromium
Inorganic materials
0.000
claims
description
2
239000011651
chromium
Substances
0.000
claims
description
2
239000010949
copper
Substances
0.000
claims
description
2
229910052802
copper
Inorganic materials
0.000
claims
description
2
239000013536
elastomeric material
Substances
0.000
claims
description
2
230000002787
reinforcement
Effects
0.000
claims
description
2
229910052710
silicon
Inorganic materials
0.000
claims
description
2
239000010703
silicon
Substances
0.000
claims
description
2
229910000617
Mangalloy
Inorganic materials
0.000
claims
1
239000003795
chemical substances by application
Substances
0.000
claims
1
WPBNNNQJVZRUHP-UHFFFAOYSA-L
manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate
Chemical compound
[Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC
WPBNNNQJVZRUHP-UHFFFAOYSA-L
0.000
claims
1
238000010438
heat treatment
Methods
0.000
description
4
238000000034
method
Methods
0.000
description
4
239000000470
constituent
Substances
0.000
description
3
230000003014
reinforcing effect
Effects
0.000
description
3
230000006835
compression
Effects
0.000
description
2
238000007906
compression
Methods
0.000
description
2
238000004519
manufacturing process
Methods
0.000
description
2
239000000203
mixture
Substances
0.000
description
2
229910001369
Brass
Inorganic materials
0.000
description
1
PWHULOQIROXLJO-UHFFFAOYSA-N
Manganese
Chemical compound
[Mn]
PWHULOQIROXLJO-UHFFFAOYSA-N
0.000
description
1
239000010951
brass
Substances
0.000
description
1
BHEPBYXIRTUNPN-UHFFFAOYSA-N
hydridophosphorus(.) (triplet)
Chemical compound
[PH]
BHEPBYXIRTUNPN-UHFFFAOYSA-N
0.000
description
1
229910052748
manganese
Inorganic materials
0.000
description
1
239000011572
manganese
Substances
0.000
description
1
239000000463
material
Substances
0.000
description
1
Classifications
D—TEXTILES; PAPER
D07—ROPES; CABLES OTHER THAN ELECTRIC
D07B—ROPES OR CABLES IN GENERAL
D07B1/00—Constructional features of ropes or cables
D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
D07B1/0606—Reinforcing cords for rubber or plastic articles
D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the rope configuration
B—PERFORMING OPERATIONS; TRANSPORTING
B60—VEHICLES IN GENERAL
B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
B60C9/0007—Reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
C—CHEMISTRY; METALLURGY
C21—METALLURGY OF IRON
C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
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
D07B2201/104—Rope or cable structures twisted
D07B2201/1052—Rope or cable structures twisted using lang lay, i.e. the wires or filaments being inclined relative to the rope axis
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
D07B2201/104—Rope or cable structures twisted
D07B2201/1064—Rope or cable structures twisted characterised by lay direction of the strand compared to the lay direction of the wires in the strand
D07B2201/1068—Rope or cable structures twisted characterised by lay direction of the strand compared to the lay direction of the wires in the strand having the same lay direction
D—TEXTILES; PAPER
D07—ROPES; CABLES OTHER THAN ELECTRIC
D07B—ROPES OR CABLES IN GENERAL
D07B2205/00—Rope or cable materials
D07B2205/30—Inorganic materials
D07B2205/3021—Metals
D07B2205/3025—Steel
D07B2205/3046—Steel characterised by the carbon content
D07B2205/3053—Steel characterised by the carbon content having a medium carbon content, e.g. greater than 0,5 percent and lower than 0.8 percent respectively HT wires
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S57/00—Textiles: spinning, twisting, and twining
Y10S57/902—Reinforcing or tire cords
Description
PATENT SPECIFICATION ( 11) 1 565 066
Z ( 21) Application No 36917/76 ( 22) Filed 7 Sep 1976 ( 19) o ( 23) Complete Specification Filed 31 Aug 1977 ( 44) Complete Specification Published 16 Apr 1980 -% ( 51) INT CL 3 DO 7 B 1/06 U 1 ( 52) Index at Acceptance Di T 1 K i M ( 72) Inventors: MAURICE ALFRED YOUNG LEONARD WILHELM HAMACHER ( 54) IMPROVEMENTS IN OR RELATING TO STEEL CORDS ( 71) We, DUNLOP LIMITED, a British Company of Dunlop House, Ryder Street.
St James’s London SW 1 Y 6 PX do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:
This invention relates to steel wire cords and in particular to steel wire cords having high 5 extensibility which may be used for reinforcing elastomeric articles especially tyres.
In radial tyres which are manufactured for high speed vehicles it is usual to use a breaker or tread reinforcing belt of steel cords This belt is often of folded edge construction and is built up of layers of parallel cords having relatively high twists compared with the majority of cords used in tyre reinforcement 10 Because of the type of breaker design in use and the requirements of the tyre, the breaker or belt is highly stressed in service and it is quite common for fatigue failures to occur within the cord structure due to compression of the cords This compression stressing may be due to local discontinuities in modulus or thickness of the materials across the width of the breaker or belt in the tyre 15 In the manufacture of fine steel wires a series of stages of drawing followed by heat treatment are used The heat treatment reforms the internal structure of the steel enabling further drawing to be carried out The process of heat treating is known as “patenting” In the manufacture of fine wire for steel tyre cord a patenting operation preceeds final drawing 20 Steel cords for use in tyres are assembled from filaments of fine diameter wires (typically 0.15 mm diameter) which have been drawn from larger diameter wires so that the properties and in particular the tensile strength are maximised Typically, a 0 87 mm diamerer wire, after “patenting” is drawn to form a O 15 mm diamter wire which, following the resulting 97 % cross-sectional area reduction, has a filament tensile strength of about 25 280 Kg/square mm It is well known that reductions of cross-sectional area of, say, 1 % result in at least a 5 % increase in tensile strength of the filaments and thus the strength of the resultant cords which utilise standard degrees of twist or lay.
The present invention provides a cord having certain improved properties particularly useful in reinforcing elastomeric articles such as tyres, the improvement being obtained by 30 limiting the reduction in cross-sectional area of the wire in drawing after “patenting” or heat treatment.
According to one aspect of the present invention a steel wire cord comprises an assembly of strands each of which comprises a plurality of filaments of steel, said filaments having been drawn to give a reduction in their cross-sectional area (as hereinafter defined) of less 35 than 96 %, the strand helix angle (as hereinafter defined) being not less that 200 and the filament helix angle (as hereinafter defined) being not less that 400.
In this specification reference to the reduction of cross-sectional area of less than 96 % refers to the reduction obtained after the (or the last) -‘patenting’ or heat treatment process 40 As used herein the term -strand helix angle is the angle between the tangent to the strand helix and the longitudinal axis of the cord; and the term filament helix angle” is the angle between the tangent to the filament helix and the longitudinal axis of the cord of which the filament is a constituent.
The strand helix angle is preferably in the range from 20 ( to 300 The filament helix angle 45 1 565 066 is preferably in the range 500 to 600.
The reduction in cross-sectional area is preferably in the range 90-96 %, especially 95-96 %.
Preferably, the lay of the cord is a Lang’s lay Cords of the invention have been found to have improved breaking load, elongation at break, elongation at a load less than the breaking load, and inproved flexibility 5 Another aspect of the present invention provides a cord as described above embedded in elastomeric material and in particular vulcanised in rubber.
Still another aspect provides a tyre reinforced by said cords The vulcanised cord was found to have even further improvements in the above three properties when compared with a similar cord made from normally drawn filaments and these improvements were 10 reflected in tyres made with the cords.
One embodiment of the present invention will now be described by way of example with reference to the accompanying drawings.
Example 15
Steel wires of 0 87 mm diameter were brass plated preparatory to drawing The steel composition was as follows:Carbon O 67 0 72 % Manganese 0 40 070 % 20 Silicon 0 25 % max Phosphorous 0 025 % max Sulphur 0 025 % max Copper 0 01 % Chromium 0 02 % 25 (Such a steel is a typical steel to provide a filament strength of the order of 280 Kg/square mm).
The wire was drawn into filaments having a diameter of O 175 mm and the process was then stopped giving a reduction of cross-sectional area of 95 95 % The wire filaments were 30 then made into a high extensibility cord (A) of Lang’s lay construction It was of a 3 X 3 x 0.175 mm construction (i e each cord consisted of three strands each of which consisted of three filaments of 0 175 mm diameter), the lay of filaments in the strand being 1 40 0.1 mm in the ‘S’ direction and the lay of strands in the cord being 2 55 O 1 mm in the ‘S’ direction The helix angles of the filaments in the strands and of the strands in the cord, are respectively: 55 2 (corresponding to the lay of 1 40 0 1 mmm) and 27 ‘ 1 (corresponding to the lay of 2 55 0 1 mm).
In the accompanying drawings Figure 1 is an elevation of a length of the steel wire cord (A) in which one of the constituent strands is shown shaded: and Figure 2 is an elevation of a length of one of the constituent strands of cord (A) Both drawings were obtained by 40 tracing photomicrographs The strand shown in Figure 2 was as obtained by unwinding cord (A) In the drawings the line AB represents the longitudinal axis of the cord, and the angles 0 and (p are respectively the stand helix angle and the filament helix angle, both as hereinbefore defined.
A similar cord (B) was made from plated steel wire of the same composition and 45 diameter as that used for cord (A) but which had been drawn from wire of 0 92 mm diameter giving a reduction of cross-sectional area of 96 36 %.
1 565 066 The cord properties were measured and found to be:Cord (A) (B) 5 Breaking load (kg force) 36 8 34 4 Elongation at break (%) 9 8 7 6 Elongation at 20 kg force (%) 2 6 2 2 Stiffness (Taber test) (g cm) 8 2 9 5 Linear density (K tex) 1 876 1 922 10 Diameter (mm) 0 76 0 79 Weight in kilograms of 1000 metres of cord.
Cords (A) and (B) vulcanised in rubber and then tested had the following properties: 15 (A) (B) Breaking load (kg force) 39 1 36 2 Elongation at break (%) 7 2 38 20 Elongation at 20 kg force (%) 2 0 1 5 The resultant cord (A) thus had improved properties suitable for use in tyres Test tyres containing a breaker comprising cords (A) and subjected to a normal structural overload test showed no structural failure after identical tyres reinforced by cord (B) had failed 25
Claims (1)
WHAT WE CLAIM IS:-
1 A steel wire cord which comprises an assembly of strands each of which comprises a plurality of filaments of steel, said filaments having been drawn to give a reduction in their cross-sectional area (as hereinbefore defined) of less than 96 %, the strand helix angle (as hereinbefore defined) being not less than 200 and the filament helix angle (as hereinbefore 30 defined) being not less than 400.
2 A steel wire cord according to Claim 1, in which the strand helix angle (as hereinbefore defined) is in the range from 200 to 300.
3 A steel wire cord according to Claim 1 or 2, in which the filament helix angle (as hereinbefore defined) is in the range from 500 to 60 35 4 A steel wire cord according to Claim 1 in which the strand helix angle (as hereinbefore defined) and the filament helix angle (as hereinbefore defined) are substantially the same as those obtained using a 3 X 3 X O 175 mm Lang’s lay construction where the lay of strands in the cord is less than 3 0 mm and the lay of filaments in the strands is less than 1 5 mm 40 A steel wire cord according to any of the preceding claims, in which said reduction in cross-sectional area is in the range 90-96 %.
6 A steel wire cord according to Claim 5, in which said reduction in cross-sectional area is in the range 95-96 %.
7 A steel wire cord according to any of the preceding claims, which is of a Lang’s lay 45 construction.
8 A steel wire cord according to any of the preceding claims, in which the diameter of the wire before drawing is in the range 0 75 to 1 mm.
9 A steel wire cord according to any of the preceding claims, in which the steel is a manganese steel 50 A steel wire cord according to Claim 9 in which the steel contains 0 67 0 72 % carbon, 0 4 0 7 % manganese, 0 25 %(maximum) silicon 0 025 % (maximum) phophorus, 0.025 % (maximum) sulphur 0 01 % copper and ( O 02 % chromium.
11 A steel wire cord according to claim 1 substantially as described herein, with reference to the accompanying drawings 55 12 A steel wire cord according to claim 1 substantially as described in the Example, with reference to the accompanying drawings.
13 A steel wire cord according to any of the preceding claims, which has been embedded in an elastomeric material.
14 A vehicle tyre containing as reinforcement a steel wire cord as claimed in any of the 60 preceding claims.
R.E S WALLER.
Agent for the Applicants.
Printed for Her Majesty’s Stationery Office, by Croydon Printing Company Limited, Croydon, Surrey, 1980.
Published by The Patent Office, 25 Southampton Buildings, London, WC 2 A IA Yfrom which copies may be obtained.
GB36917/76A
1976-09-07
1976-09-07
Steel cords
Expired
GB1565066A
(en)
Priority Applications (10)
Application Number
Priority Date
Filing Date
Title
GB36917/76A
GB1565066A
(en)
1976-09-07
1976-09-07
Steel cords
US05/829,976
US4176513A
(en)
1976-09-07
1977-09-01
Steel wire cord
AU28450/77A
AU506413B2
(en)
1976-09-07
1977-09-01
Improvements to cords
DE19772739484
DE2739484A1
(en)
1976-09-07
1977-09-01
STEEL REINFORCEMENT CORDS FOR TIRES
SE7709912A
SE7709912L
(en)
1976-09-07
1977-09-02
STALLINE CORD
ZA00775336A
ZA775336B
(en)
1976-09-07
1977-09-02
Improvements to cords
FI772623A
FI58610C
(en)
1976-09-07
1977-09-05
STAOLKORD
ES462147A
ES462147A1
(en)
1976-09-07
1977-09-06
Steel wire cord
FR7727072A
FR2363651A1
(en)
1976-09-07
1977-09-07
IMPROVEMENTS TO STEEL CABLES
JP52107661A
JPS5940959B2
(en)
1976-09-07
1977-09-07
steel wire cord
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB36917/76A
GB1565066A
(en)
1976-09-07
1976-09-07
Steel cords
Publications (1)
Publication Number
Publication Date
GB1565066A
true
GB1565066A
(en)
1980-04-16
Family
ID=10392227
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB36917/76A
Expired
GB1565066A
(en)
1976-09-07
1976-09-07
Steel cords
Country Status (10)
Country
Link
US
(1)
US4176513A
(en)
JP
(1)
JPS5940959B2
(en)
AU
(1)
AU506413B2
(en)
DE
(1)
DE2739484A1
(en)
ES
(1)
ES462147A1
(en)
FI
(1)
FI58610C
(en)
FR
(1)
FR2363651A1
(en)
GB
(1)
GB1565066A
(en)
SE
(1)
SE7709912L
(en)
ZA
(1)
ZA775336B
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN111601924A
(en)
*
2017-12-19
2020-08-28
米其林集团总公司
Double-layer multi-strand cord with very low, low and medium modulus
Families Citing this family (21)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
LU79218A1
(en)
*
1978-03-13
1979-10-29
Bekaert Sa Nv
REINFORCING METAL CORDAGE AND ITS MANUFACTURING METHOD
JPS5647411A
(en)
*
1979-09-28
1981-04-30
Nippon Oil & Fats Co Ltd
Polymer of polyoxyalkylene glycol monoacrylate or monomethacrylate and lubricant, antistatic and cosmetic agent therefrom
FR2473080A1
(en)
*
1979-12-21
1981-07-10
Kanai Hiroyuki
STEEL CABLE
NL191315C
(en)
*
1981-05-08
1995-05-16
Bekaert Sa Nv
Cable for reinforcing elastomeric material and method for manufacturing such a cable.
JPS58128902A
(en)
*
1982-01-28
1983-08-01
Toyo Tire & Rubber Co Ltd
Pneumatic tyre
US4506500A
(en)
*
1982-04-10
1985-03-26
Tokusen Kogyo Kabushiki Kaisha
Steel cord for reinforcing a rubber structure
JPS58188201U
(en)
*
1982-06-04
1983-12-14
株式会社ブリヂストン
radial tires
JPS59125996U
(en)
*
1983-02-10
1984-08-24
トクセン工業株式会社
steel cord
US4516395A
(en)
*
1983-08-23
1985-05-14
The Goodyear Tire & Rubber Company
Metallic cable for reinforcing elastomeric articles
GB8332395D0
(en)
*
1983-12-05
1984-01-11
Bekaert Sa Nv
Steel wires
JPS6147839A
(en)
*
1984-08-14
1986-03-08
株式会社ブリヂストン
Tire reinforcing material
MY100832A
(en)
*
1986-03-06
1991-03-15
Goodyear Tire & Rubber
Reinforced composite structure
JPS6445883A
(en)
*
1987-08-07
1989-02-20
Toyo Tire & Rubber Co
Radial tire for car
JPH01178002A
(en)
*
1988-01-08
1989-07-14
Sumitomo Rubber Ind Ltd
Radial tire for motor bicyle
US4947636A
(en)
*
1989-02-13
1990-08-14
The Goodyear Tire & Rubber Company
Metal wire cord for elastomer reinforcement
FR2663041B1
(en)
*
1990-06-07
1994-04-01
Sodetal
NUT STEEL WIRE WITH HIGH RESISTANCE.
US5956935A
(en)
*
1995-03-17
1999-09-28
Tokyo Rope Manufacturing Co., Ltd.
High tensile steel filament member for rubber product reinforcement
DE19638984A1
(en)
*
1996-09-23
1998-04-02
Drahtcord Saar Gmbh & Co Kg
Steel cord and process for its manufacture
EP0976583B1
(en)
*
1998-07-29
2005-12-21
Sumitomo Rubber Industries Ltd.
Metallic cord and pneumatic tyre
FR2943951B1
(en)
*
2009-04-07
2012-12-14
Michelin Soc Tech
TIRE FOR HEAVY VEHICLES HAVING A LAYER OF CIRCUMFERENTIAL REINFORCING ELEMENTS.
FR2943950B1
(en)
*
2009-04-07
2011-04-15
Michelin Soc Tech
TIRE FOR HEAVY VEHICLES COMPRISING A CIRCUMFERENTIAL ELEMENT LAYER.
Family Cites Families (17)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2195592A
(en)
*
1936-01-16
1940-04-02
American Steel & Wire Co
Cordage structure and method of making same
NL69339C
(en)
*
1948-12-27
US2767836A
(en)
*
1955-06-27
1956-10-23
Lasalle Steel Co
Process of extruding steel
BE566163A
(en)
*
1957-03-30
1900-01-01
US3243338A
(en)
*
1960-07-27
1966-03-29
Dunlop Tire & Rubber Corp
Flexible elastomeric articles and reinforcement therefor
US3259487A
(en)
1963-01-31
1966-07-05
United States Steel Corp
High-strength wire rope
FR1348290A
(en)
*
1963-02-25
1964-01-04
Saar Gmbh Drahtseilwerk
Anti-rotation metal cables
US3306022A
(en)
*
1965-04-30
1967-02-28
United States Steel Corp
Wire rope
US3395528A
(en)
*
1966-02-11
1968-08-06
United States Steel Corp
Stainless steel wire products and method of making the same
US3374619A
(en)
1966-04-27
1968-03-26
United States Steel Corp
Torque balanced rope
GB1264803A
(en)
1968-04-10
1972-02-23
JPS4926509Y1
(en)
*
1968-07-09
1974-07-18
FR2077770B1
(en)
1970-02-12
1973-03-16
Michelin & Cie
TR16885A
(en)
*
1971-05-18
1973-09-01
Pirelli
REINFORCEMENT IN METAL CONDONS FOR REINFORCEMENT ON RUBBER ITEMS
BE795955A
(en)
1972-02-25
1973-08-27
Monsanto Co
THERMAL AND MECHANICAL TREATMENT OF A STEEL WIRE
FR2260660B1
(en)
*
1974-02-12
1976-11-26
Michelin & Cie
US4020887A
(en)
*
1975-05-14
1977-05-03
Nikolai Nikiforovich Vlasov
Tires reinforced with steel cord
1976
1976-09-07
GB
GB36917/76A
patent/GB1565066A/en
not_active
Expired
1977
1977-09-01
DE
DE19772739484
patent/DE2739484A1/en
active
Granted
1977-09-01
US
US05/829,976
patent/US4176513A/en
not_active
Expired – Lifetime
1977-09-01
AU
AU28450/77A
patent/AU506413B2/en
not_active
Expired
1977-09-02
SE
SE7709912A
patent/SE7709912L/en
not_active
Application Discontinuation
1977-09-02
ZA
ZA00775336A
patent/ZA775336B/en
unknown
1977-09-05
FI
FI772623A
patent/FI58610C/en
not_active
IP Right Cessation
1977-09-06
ES
ES462147A
patent/ES462147A1/en
not_active
Expired
1977-09-07
FR
FR7727072A
patent/FR2363651A1/en
active
Granted
1977-09-07
JP
JP52107661A
patent/JPS5940959B2/en
not_active
Expired
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN111601924A
(en)
*
2017-12-19
2020-08-28
米其林集团总公司
Double-layer multi-strand cord with very low, low and medium modulus
CN111601924B
(en)
*
2017-12-19
2022-03-15
米其林集团总公司
Double-layer multi-strand cord with very low, low and medium modulus
Also Published As
Publication number
Publication date
FR2363651A1
(en)
1978-03-31
ZA775336B
(en)
1978-07-26
JPS5940959B2
(en)
1984-10-03
AU506413B2
(en)
1980-01-03
AU2845077A
(en)
1979-03-08
DE2739484C2
(en)
1987-04-30
FI772623A
(en)
1978-03-08
ES462147A1
(en)
1978-12-01
SE7709912L
(en)
1978-03-08
US4176513A
(en)
1979-12-04
FI58610C
(en)
1981-03-10
DE2739484A1
(en)
1978-03-09
FR2363651B1
(en)
1981-11-27
JPS5335059A
(en)
1978-04-01
FI58610B
(en)
1980-11-28
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Legal Events
Date
Code
Title
Description
1980-07-02
PS
Patent sealed [section 19, patents act 1949]
1991-05-01
PCNP
Patent ceased through non-payment of renewal fee
