US3306022A - Wire rope - Google Patents

Wire rope Download PDF

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Publication number
US3306022A
US3306022A US452174A US45217465A US3306022A US 3306022 A US3306022 A US 3306022A US 452174 A US452174 A US 452174A US 45217465 A US45217465 A US 45217465A US 3306022 A US3306022 A US 3306022A
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United States
Prior art keywords
strands
lay
wire rope
rope
core
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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
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US452174A
Inventor
Roger W Stevens
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United States Steel Corp
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United States Steel Corp
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Publication date
Application filed by United States Steel Corp filed Critical United States Steel Corp
Priority to US452174A priority Critical patent/US3306022A/en
Priority claimed from FR59234A external-priority patent/FR1477381A/en
Application granted granted Critical
Publication of US3306022A publication Critical patent/US3306022A/en
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Expired - Lifetime legal-status Critical Current

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    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B1/00Constructional features of ropes or cables
    • D07B1/06Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0673Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
    • D07B1/068Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration characterised by the strand design
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B2201/00Ropes or cables
    • D07B2201/10Rope or cable structures
    • D07B2201/1028Rope or cable structures characterised by the number of strands
    • D07B2201/1036Rope or cable structures characterised by the number of strands nine or more strands respectively forming multiple layers
    • DTEXTILES; PAPER
    • D07ROPES; CABLES OTHER THAN ELECTRIC
    • D07BROPES OR CABLES IN GENERAL
    • D07B2201/00Ropes or cables
    • D07B2201/20Rope or cable components
    • D07B2201/2015Strands
    • D07B2201/2036Strands characterised by the use of different wires or filaments
    • D07B2201/2037Strands characterised by the use of different wires or filaments regarding the dimension of the wires or filaments

Abstract

1,136,805. Wire ropes. UNITED STATES STEEL CORP. 12 April, 1966 [30 April, 1965], No. 16017/66. Heading D1T. The wire rope has an independent wire rope core (2), Fig. 2 (not shown) and a plurality of strands (6) surrounding the core, one strand (6) being received in each of the valleys (4) of the core (2), the lay of the outer wires in each strand (6) being a maximum of six times the diameter of the strand (6). The lay is preferably between four and six times the diameter of the strand (6). The lay of the strands (6) is preferably between six and eight times the diameter of the rope, and the wires of the strands (6) are preferably laid in the same direction as the strands of the rope.

Description

b- 1967 R. w. STEVENS 3,306,022

WIRE ROPE I Filed April :50, 1965 4. 4 //v l/E/l/TOR ROGER w STEVENS Attorney United States Patent Ofiice 3,306,022 Patented Feb. 28, 1967 3,306,022 WIRE ROPE Roger W. Stevens, Woodhury, Conn, assignor to United States Steel Corporation, a corporation of Delaware Filed Apr. 30, 1965, Ser. No. 452,174 6 (Ilairns. (Cl. 57--148) This invention relates to a wire rope and is particularly directed to a Lang Lay steel rope having an independent wire rope core. This type of rope is often used as boom hoist ropes on small cranes or on wagon scrapers Where the drum winding is relatively poor and the diameter of the drums relatively small and also as drag ropes on drag line machines. In such service the wires in the Lang Lay rope are exposed for a considerable distance on the surface of the rope and the wires are readily scrubbed out of position. I have found that this defect can be overcome by reducing the length of lay of the outer wires in the strands over that commonly used. However, this also reduces the strength of the rope somewhat and I have found it necessary to provide other changes in the construction of the rope in order to increase its strength. I have also found that I can increase the resistance to rupture under shock loads and obtain other advantages by the changes in rope structure.

It is, therefore, an object of my invention to provide a scrub resistance Lang Lay rope having strength substantially equal to that of the normal Lang Lay rope.

Another object is to provide a rope having increased resistance against rupture under shock load and improved wear resistance.

These and other objects will be more apparent after referring to the following specification and attached drawings, in which:

FIGURE 1 is a longitudinal view of a wire rope of my invention;

FIGURE 2 is an end view of the rope of FIGURE 1; and

FIGURE 3 is a view, similar to FIGURE 2, showinganother embodiment of my invention.

Referring more particularly to FIGURES 1 and 2 of the drawings, reference numeral 2 indicates an independent wire rope core which is shown as having a 7 x 7 construction with six valleys 4 between the outer strands of the core. Six strands 6 surround the independent Wire rope core 2 with one strand being received in each of the valleys 4. The lay of the strands around the independent wire rope core must match the lay of the outer strands in the independent wire rope core. The wires in the strands are laid in the same direction as the strands in the rope, this being the standard Lang Lay construction. The rope shown is the well known 6 x 19 Scale construction, so that each strand has 19 wires.

According to my invention the strands 6 are manufactured in the usual manner except that the lay of the outer wires in each strand 6 is a maximum of six times the diameter of the strand whereas in the conventional construction the lay is commonly between 7 and 10 times the diameter of the strand. In the particular rope shown the lay is 5.2 times the diameter of the strand and I prefer that the lay be between 4 and 6 times the diameter of the strand. The strands 6 are then laid around the independent wire rope core 2 in the valleys 4 thereof with the lay of the strands around the core matching the lay of the strands in the core. This construction may be obtained by closing the outer strands of the independent wire rope core and the main strands of the rope around the center member simultaneously. Another method of obtaining this construction is shown in the co-pending application of Vennett Serial No. 384,878, filed July 24, 1964. Conventional ropes of this general type are normally manufactured with the rope lay being between approximately 6 and 8 times the diameter of the rope and it is preferred to use this length of lay in the ropes of my invention.

In the embodiment of FIGURE 3, the independent wire rope core 2 has the same construction as that of FIGURE 2. Six outer strands 10 are laid in the valleys 4. Except for the difference between strands 6 and 10, the rope of FIGURE 3 has the same construction and is made in the same manner as the rope of FIGURE 2.

While my invention has maximum utility and advantages in Lang Lay ropes and in Alternate Lay ropes in which the strands are alternately Lang Lay and Regular Lay, certain advantages are obtained in ropes of Regular Lay constructed otherwise the same as described above. It will be seen that FIGURES 2 and 3 indicate the construction of Alternate Lay and Regular Lay ropes as well as Lang Lay ropes.

While several embodiments of my invention have been shown and described it will be apparent that other adaptations and modifications may be made without departing from the scope of the following claims.

I claim:

1. A wire rope comprising an independent wire rope core including outer strands with valleys therebetween, and a plurality of strands surrounding said core with one strand being received in each of the valleys of the independent wire rope core, each of said plurality of strands including outer wires, the lay of the plurality of strands around the independent wire rope core matching the lay of the outer strands in the independent wire rope core, the lay of the outer wires in each of the plurality of strands being a maximum of approximately six times the diameter of the strand.

2. A wire rope according to claim 1 in which the lay of the plurality of strands around the core is between approximately six and eight times the diameter of the rope.

3. A wire rope according to claim 1 in which the wires in said plurality of strands are laid inthe same direction as the strands in the rope.

4. A wire rope according to claim 3 in which the lay of the plurality of strands around the core is between approximately six and eight times the diameter of the rope.

5. A wire rope according to claim 3 in which the lay of the outer wires in each of the plurality of strands is between approximately four and six time the diameter of the strand.

6. A wire rope according to claim 5 which the lay of the plurality of strands around the core is between approximately six and eight times the diameter of the rope.

References Cited by the Examiner UNITED STATES PATENTS 9/1951 Riddle 57l48 1/1962 Dietz 57148

Claims (1)

1. A WIRE ROPE COMPRISING AN INDEPENDENT WIRE ROPE CORE INCLUDING OUTER STRANDS WITH VALLEYS THEREBETWEEN, AND A PLURALITY OF STRANDS SURROUNDING SAID CORE WITH ONE STRAND BEING RECEIVED IN EACH OF THE VALLEYS OF THE INDEPENDENT WIRE ROPE CORE, EACH OF SAID PLURALITY OF STRANDS INCLUDING OUTER WIRES, THE LAY OF THE PLURALITY OF STRANDS AROUND THE INDEPENDENT WIRE ROPE CORE MATCHING THE LAY OF THE OUTER STRANDS IN THE INDEPENDENT WIRE ROPE CORE, THE LAY OF THE OUTER WIRES IN EACH OF THE PLURALITY OF STRANDS BEING A MAXIMUM OF APPROXIMATELY SIX TIMES THE DIAMETER OF THE STRAND.
US452174A 1965-04-30 1965-04-30 Wire rope Expired - Lifetime US3306022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US452174A US3306022A (en) 1965-04-30 1965-04-30 Wire rope

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US452174A US3306022A (en) 1965-04-30 1965-04-30 Wire rope
GB1601766A GB1136805A (en) 1965-04-30 1966-04-12 Wire rope and method of making the same
FR59234A FR1477381A (en) 1965-04-30 1966-04-27 wire cable and its manufacturing method

Publications (1)

Publication Number Publication Date
US3306022A true US3306022A (en) 1967-02-28

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GB (1) GB1136805A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029855A (en) * 1973-07-17 1975-03-25
US4051661A (en) * 1976-09-15 1977-10-04 Bethlehem Steel Corporation Wire strand and rope
US4176513A (en) * 1976-09-07 1979-12-04 Dunlop Limited Steel wire cord
US4365467A (en) * 1980-12-12 1982-12-28 Armco Inc. Rotation resistant wire rope
US4470249A (en) * 1983-02-18 1984-09-11 Amsted Industries Incorporated Multi-layer, contrahelically stranded wire rope
CN102021852A (en) * 2010-09-26 2011-04-20 江苏赛福天钢绳有限公司 Steel wire rope for micro-rotation high-bearing crane and making method thereof
CN102747625A (en) * 2012-06-20 2012-10-24 贵州钢绳股份有限公司 Steel wire rope for aviation
CN105908545A (en) * 2016-06-17 2016-08-31 昆山东岸海洋工程有限公司 Steel wire rope for hoisting

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105200832B (en) * 2015-10-26 2017-05-24 贵州钢绳股份有限公司 Super-large-diameter cable type steel wire rope

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567300A (en) * 1949-06-30 1951-09-11 American Steel & Wire Co Wire rope
US3018606A (en) * 1958-04-24 1962-01-30 Dietz Gerhard Stranded metal ropes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567300A (en) * 1949-06-30 1951-09-11 American Steel & Wire Co Wire rope
US3018606A (en) * 1958-04-24 1962-01-30 Dietz Gerhard Stranded metal ropes

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029855A (en) * 1973-07-17 1975-03-25
JPS604312B2 (en) * 1973-07-17 1985-02-02 Sumitomo Electric Industries
US4176513A (en) * 1976-09-07 1979-12-04 Dunlop Limited Steel wire cord
US4051661A (en) * 1976-09-15 1977-10-04 Bethlehem Steel Corporation Wire strand and rope
US4365467A (en) * 1980-12-12 1982-12-28 Armco Inc. Rotation resistant wire rope
US4470249A (en) * 1983-02-18 1984-09-11 Amsted Industries Incorporated Multi-layer, contrahelically stranded wire rope
CN102021852A (en) * 2010-09-26 2011-04-20 江苏赛福天钢绳有限公司 Steel wire rope for micro-rotation high-bearing crane and making method thereof
CN102747625A (en) * 2012-06-20 2012-10-24 贵州钢绳股份有限公司 Steel wire rope for aviation
CN105908545A (en) * 2016-06-17 2016-08-31 昆山东岸海洋工程有限公司 Steel wire rope for hoisting

Also Published As

Publication number Publication date
GB1136805A (en) 1968-12-18

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