US3181291A - Wire rope configuration - Google Patents

Wire rope configuration Download PDF

Info

Publication number
US3181291A
US3181291A US236951A US23695162A US3181291A US 3181291 A US3181291 A US 3181291A US 236951 A US236951 A US 236951A US 23695162 A US23695162 A US 23695162A US 3181291 A US3181291 A US 3181291A
Authority
US
United States
Prior art keywords
strands
wires
strand
diameter
outer
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
US236951A
Inventor
Grant H Carpenter
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.)
Jones and Laughlin Steel Corp
Original Assignee
Jones and Laughlin Steel Corp
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
Application filed by Jones and Laughlin Steel Corp filed Critical Jones and Laughlin Steel Corp
Priority to US236951A priority Critical patent/US3181291A/en
Application granted granted Critical
Publication of US3181291A publication Critical patent/US3181291A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • D07B2201/1012Rope or cable structures characterised by their internal structure
    • D07B2201/1016Rope or cable structures characterised by their internal structure characterised by the use of different strands

Description

May 4, 1965 G. H. CARPENTER WIRE ROPE CONFIGURATION Filed NOV. 13, 1962 INVENTOR GRANTFLCARPENTER MSATTORNEY United States Patent 3,181,291 WIRE ROPE CONFIGURATION Grant H. Carpenter, Montoursville, Pa., assignor to Jones & Laughlin Steel Corporation, Pittsburgh, Pa., a corporation of Pennsylvania Filed Nov. 13, 1962, Ser. No. 236,951

2 Claims. (Cl. 57-148) This invention relates to wire ropes. It is more particularly concerned with wire ropes formed principally or entirely from a plurality of strands of different diameters each of which is formed from a plurality of solid wires.

It is an object of my invention to provide a wire rope structure which will exhibit maximum service life for a given cross section area. To this end it is an object of my invention to provide a wire rope which will wear uniformly in service. It is also an object to provide a wire rope which possesses maximum resiliency under shock load. It is another object of my invention to provide a wire rope which will have improved resistance to crushing. It is still another object to provide a wire rope which in cross section will have a relatively large metal area. It is yet another object of my invention to provide a Wire rope of high flexibility. Qther objects of my invention will appear in the course of the description thereof which follows.

An embodiment of my invention presently preferred by me is illustrated in the attached figures to which reference is now made.

FIGURE 1 is a cross section through a rope of my invention having outer strands of alternating larger and smaller diameter.

FIGURE 2 is a cross section of an alternate structure for the larger diameter outer strands of FIGURE 1.

FIGURE 3 is an alternate structure for the smaller diameter outer strands of FIGURE 1.

It will be seen from FIGURE 1 that the rope there illustrated has a core comprised of three strands 3 which are helically laid together without a center core wire or strand. Each strand 3 comprises a center wire 4 which is surrounded by six outer wires 5, helically laid together. The direction of lay of the three strands 3 is the same as that of outer strands 1 and 2. Wire 4 is about 4% larger in diameter than wires 5-5, to provide clearance between the latter wires when the rope is flexed.

The core formed by strands 3-3 is surrounded with three strands 1 of larger diameter which are helically laid alternately with three strands 2 of smaller diameter so that each strand 1 makes contact with a pair of strands 3-3 and each strand 2 makes contact with one strand 3 only of the core. Each strand 1 is of the same diameter as the other strands 11, and each strand 2 is also of the same diameter as the other strands 22. The relative diameters of strands 1-1 and strands 22 are adjusted so that strands 1-1 and strands 2-2 are tangent to a circumscribed circle having its center at the center of the core comprised by strands 3-3. Strands 1-1 and 2-2 are laid together helically in the same direction as the lay of strands 3-3.

Each strand 1 comprises a center wire 6 around which are helically laid six wires 7. Around the intermediate wires 7-7 are helically laid twelve wires 8. Wires 6, 7-7 and 8-8 are laid up in the same direction.

Each strand 2 comprises a center wire 9 around which 3,181,291 Patented May 4, 1965 are helically laid nine wires 10. Around these intermediate wires are helically laid nine wires 11. Wire 9 is about 12% larger in diameter than wires 11-11, but wires 10-10 are of smaller diameter than either wires 9 or 11-11. Wires 10-10 and 11-11 are helically laid up in the same direction. Wires 11-11 are of the same diameter as wires 8-8 of strand 1.

FIGURE 2 illustrates an alternative structure for larger diameter strands 1. In the structure a center wire 13 is surrounded by eight helically laid strands 14 which in turn are surrounded by eight helically laid strands 15 of larger diameter. In the valleys between the wires 15-15 are helically laid eight filler wires 16. The strand is completed by an outer layer of sixteen helically laid wires 17. Filler Wires 16-16 are of relatively smaller diameter, wires 13 and 17-17 are of the same diameter, and wires 15-15 are of larger diameter than Wires 17-17.

FIGURE 3 illustrates an alternative structure for strand 2. In this structure a center wire 18 is surrounded by six helically stranded wires 19. The valleys between wires 19-19 are occupied by six filler wires 20-20. The strand is completed by an outer layer of twelve wires 21. All the wires in the strand are helically laid up in the same direction around center wire 18. Wire 18 is slightly larger in diameter than wires 19-19, and those wires are slightly larger in diameter than Wires 21-21. Filler wires 20-20 are smaller than wires 18, 19 and 21. Outer wires 17-17 of the strand of FIGURE 2 are of the same diameter as outer wires 21-21 of the strand of FIGURE 3. The alternate strands of FIGURES 2 and 3 are used together to replace strands 1 and 2 of FIGURE 1.

It will be observed that all the outer Wires of my rope are of the same diameter whether the outer strands are those shown in FIGURE 1 or the alternate structures shown in FIGURES 2 and 3. The outer wires 8-8 of strand 1, therefore, wear down in service at the same rate as the outer wires 11-11 of strand 2. In like fashion, the outer wires 17-17 of the strand shown in FIGURE 2 wear down at the same rate as outer wires 21-21 of the strand shown in FIGURE 3. In this way, my wire rope wil provide the maximum service life possible for a rope of a given outside diameter. Likewise, my wire rope structure provides maximum resistance to crushing because of the inherent stability of the three strand core. My rope also exhibits maximum resiliency under shock load because of the absence of a straight center wire or core. Strands 3-3 are laid up helically just as are outer strands 1-1 and 2-2 so that under shock they can untwist and elongate in the same way as the outer strands. As all the strands comprising my rope are helically laid together, the rope has greater flexibility than a rope in cluding a center wire or center strand.

I have described and illustrated one alternative structure of strand 1 and a companion alternative structure for strand 2, but my invention is not limited to the alternatives described and illustrated. Those skilled in the art will be able to devise other structures for strands 1 and 2 in which the outside wires of strand 1 are of the same diameter as the outside wires of strand 2. Those structures can be satisfactorily embodied in rope of my invention.

I claim:

1. In a wire rope having an outer rope layer of strands of alternating larger and smaller diameter spirally laid together, the improvement comprising an outer strand 3 layer of solid Wires of uniform diameter, that wire diameter being the same in the strands of larger and smaller diameter, the outer rope layer strands being tangent to a circumscribed circle.

2. A Wire rope comprising a core of three strands of the same diameter spirally laid together surrounded by six outer strands of alternating larger and smaller diameter spirally laid together, the outer strands being tangent to a circumscribing circle, and having an outer strand layer of solid wires of uniform diameter, that wire diameter being the same in the strands of both larger and smaller diameter.

4 References Cited by the Examiner UNITED STATES PATENTS FOREIGN PATENTS 7 55 Canada. 6/34 Great Britain. 8/ 3 3 Switzerland.

MERVIN STEIN, Primary Examiner.

Claims (1)

1. IN A WIRE ROPE HAVING AN OUTER ROPE LAYER OF STRANDS OF ALTERNATING LARGER AND SMALLER DIAMETER SPIRALLY LAID TOGETHER, THE IMPROVEMENT COMPRISING AN OUTER STRAND LAYER OF SOLID WIRES OF UNIFORM DIAMETER, THAT WIRE DIAMETER BEING THE SAME IN THE STRANDS OF LARGER AND SMALLER DIAMETER, THE OUTER ROPE LAYER STRANDS BEING TANGENT TO A CIRCUMSCRIBED CIRCLE.
US236951A 1962-11-13 1962-11-13 Wire rope configuration Expired - Lifetime US3181291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US236951A US3181291A (en) 1962-11-13 1962-11-13 Wire rope configuration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US236951A US3181291A (en) 1962-11-13 1962-11-13 Wire rope configuration

Publications (1)

Publication Number Publication Date
US3181291A true US3181291A (en) 1965-05-04

Family

ID=22891702

Family Applications (1)

Application Number Title Priority Date Filing Date
US236951A Expired - Lifetime US3181291A (en) 1962-11-13 1962-11-13 Wire rope configuration

Country Status (1)

Country Link
US (1) US3181291A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271944A (en) * 1964-05-01 1966-09-13 United States Steel Corp Stranded wire structures
EP0117122A1 (en) * 1983-02-18 1984-08-29 AMSTED Industries Incorporated Multi-layer, contrahelically stranded wire rope
AT381967B (en) * 1982-04-23 1986-12-29 Teufelberger Gmbh Wire rope
CN106368024A (en) * 2016-11-14 2017-02-01 南通虎神金属制品有限公司 High-toughness steel wire rope special for wind power generation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1009030A (en) * 1911-02-06 1911-11-14 Edward P Frederick Rope.
US1348033A (en) * 1920-03-17 1920-07-27 George C Moon Wire rope
CH163512A (en) * 1932-10-12 1933-08-31 Schweizerische Seil Ind Vormal Zwölfdrähtige zwölflitziges strand or rope.
GB411940A (en) * 1932-12-22 1934-06-21 Edwin Alfred Ellis Improvements in and relating to wire ropes
US2241955A (en) * 1940-07-16 1941-05-13 Wickwire Spencer Steel Company Metallic rope and cable
CA585066A (en) * 1959-10-13 British Ropes Limited Ropes
US3018606A (en) * 1958-04-24 1962-01-30 Dietz Gerhard Stranded metal ropes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA585066A (en) * 1959-10-13 British Ropes Limited Ropes
US1009030A (en) * 1911-02-06 1911-11-14 Edward P Frederick Rope.
US1348033A (en) * 1920-03-17 1920-07-27 George C Moon Wire rope
CH163512A (en) * 1932-10-12 1933-08-31 Schweizerische Seil Ind Vormal Zwölfdrähtige zwölflitziges strand or rope.
GB411940A (en) * 1932-12-22 1934-06-21 Edwin Alfred Ellis Improvements in and relating to wire ropes
US2241955A (en) * 1940-07-16 1941-05-13 Wickwire Spencer Steel Company Metallic rope and cable
US3018606A (en) * 1958-04-24 1962-01-30 Dietz Gerhard Stranded metal ropes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271944A (en) * 1964-05-01 1966-09-13 United States Steel Corp Stranded wire structures
AT381967B (en) * 1982-04-23 1986-12-29 Teufelberger Gmbh Wire rope
EP0117122A1 (en) * 1983-02-18 1984-08-29 AMSTED Industries Incorporated Multi-layer, contrahelically stranded wire rope
CN106368024A (en) * 2016-11-14 2017-02-01 南通虎神金属制品有限公司 High-toughness steel wire rope special for wind power generation

Similar Documents

Publication Publication Date Title
US8707668B2 (en) Wrapped yarns for use in ropes having predetermined surface characteristics
AU610043B2 (en) Rope with fiber core and method of forming same
FI78129B (en) Textilfiberrep.
JP4802294B2 (en) Steel cords and tires for rubber article reinforcement
EP0125518B1 (en) Cord for the reinforcement of elastomers
US3490224A (en) Composite metallic and textile yarn
EP0130191B1 (en) Filiform elements usable for reinforcing mouldable materials, particularly concrete
US4170921A (en) Braided rope
US3078755A (en) Braided cordage
US3538702A (en) Reinforcing element
US4034547A (en) Composite cable and method of making the same
US4506500A (en) Steel cord for reinforcing a rubber structure
CA1163879A (en) Wire rope
CA1177923A (en) Overhead line cable with means for traction relief
US3672006A (en) Open mesh cable grip
US3336744A (en) Reinforcing cord having two-filament core surrounded by six single filatment units
GB2158847A (en) Rope
US3131469A (en) Process of producing a unitary multiple wire strand
US20130055696A1 (en) Hybrid rope and method for manufacturing the same
EP0125517B1 (en) Reinforcement cord with lapping wire
US2509894A (en) Wire rope and process of manufacturing same
US3130536A (en) Method of manufacturing wire rope
JP5269838B2 (en) Elevator wire rope
CA2109904A1 (en) Multi-strand steel cord
US3451305A (en) Braided steel leader construction