US1732640A - Wire rope and process of making same - Google Patents

Wire rope and process of making same Download PDF

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Publication number
US1732640A
US1732640A US105352A US10535226A US1732640A US 1732640 A US1732640 A US 1732640A US 105352 A US105352 A US 105352A US 10535226 A US10535226 A US 10535226A US 1732640 A US1732640 A US 1732640A
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US
United States
Prior art keywords
rope
strand
wire
strands
wire rope
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
US105352A
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English (en)
Inventor
Edward A Conner
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.)
AMERICAN CABLE CO Inc
AMERICAN CABLE COMPANY Inc
Original Assignee
AMERICAN CABLE CO Inc
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 BE342634D priority Critical patent/BE342634A/xx
Application filed by AMERICAN CABLE CO Inc filed Critical AMERICAN CABLE CO Inc
Priority to US105352A priority patent/US1732640A/en
Priority to FR636804D priority patent/FR636804A/fr
Application granted granted Critical
Publication of US1732640A publication Critical patent/US1732640A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02—Machine details; Auxiliary devices
    • D07B7/025—Preforming the wires or strands prior to closing

Definitions

  • This invention relates to wire-rope andthe like, and has for its object an lmproved method of manufacturing Wire-rope comscveral wires, the improved method comprising as a novel step the treatment of the component strands after the Wires forming each strand have been laid in the strand, but before the strands have been closed into the rope', to give each strand a' helical conformation corresponding approximately to its final contour when closed into the rope with other similarly preformed strands, whereby the wire-rope produced will have the d eslrable inert lay characteristic 0f stranded wlre-rope or cable such as is produced by the process covered by my Letters Patent No.
  • the Wire-rope is composed of strands which retain their closed relationship to each other when the Wire rope is severed, while the individual Wires of the strand components likewise re tain their closed relationship to each other in the several strands even when severed. ⁇
  • the invention provides, in the process of making stranded wire rope, the'steps which comprise forming expansile strands each having a plurality of Wires, and subjecting the several strands to the action ofdevices adapted rto for-m them into helices, and laying them, as they emerge from the devices, in position to form 4component parts of a wire rope having an inert lay conformation.
  • the improved process of making such incrt-lay wire-rope has for a further important object the provision for using, as a strand component for treatment by this process, a strand having ,thev last mentioned conventional construction which comprises several wires which have not been subjected to helical preformation, so that such a strand is expanstrands in which the with a great superiorit ⁇ the useful life of this novel 1926.
  • such a strand is referred to. herein as an expansile strand
  • each such expansile strand is subjected individually as a unitary structure to helical deformation, which may be accomplished concurrently upon the several strands, as part of a continuous process of forming an inert-lay wire-rope comprising such strands, the preformation of the strands constituting a step prior to the step of closing said preformed strands into the wire-rope; or each Wire-strand may be preformed individually as a separate operation not forming part ofthe Wire-rope making proper, and the inert-lay Wire-rope may be made up of such pre-formed strands at the convenience of the manufacturer.
  • the completed product constitutes a Wire-rope which has the principal desirable characteristics of inert-lay Wire-rope made up of wireindividual Wires have been dpreformed prior to closing into the stran ,Which may be termed inert-lay wirerope preformed throughout, and the product of the present process compares favorably in cost with the former. It also shares therein its length of life and convenience of handling, over ordinary wire-rope ofthe conventional expansile type,
  • inert-lay wirerope being shown ceed by a considerable percentage that of the aforesaid conventional expansile Wire-rope made of the same materials, and having the same dimensions.
  • Fig. 1 is a view in side elevation of a fragment of expansile strand adapted to serve as a strand component when treated by the process hereinafter disclosed for the formation of inert-lay wire rope.
  • Fig. 2 is a fragmentary detail view of part of a wire rope inthe construction of which the said process has been utilized.
  • Fig. 3 is a transverse section of the Wire rope shown in Fig. 2.
  • Fig. 4 is a vertical, longitudinal sectional view of a preforming head suitable for carrying the invention into edect.
  • the part designated by the reference numeral 1 is a wire strand, composed of several individual wires 2 which may, and preferably will, be
  • strands In Fig. 2 several strands are shown, designated respectively by the numeral 1 inasmuch as these strands in their original condition were of the type shown in Fig. 1, but in pura Wire rope.
  • each of these strands has been preformed, preparatory to being closed into the rope shown in Fig. 2, and'which is designated in its entirety by the reference character R, in order to impart to each stranda helical conformation causing the same to assume the formation normally characteristic of'a component strand in such
  • This normalizing of the strand may be produced by any convenient means, and in Fig. 4 is shown lone type of device for accomplishing the desired result, the same comprising a head 11 in which are inserted firmly a plurality of nozzles or dies 12 adapted to constitute the preforming means by which the strand, or strands, of the type shown at 1 in Fig. 1 may be formed into a helical conformation.
  • each nozzle has a peripheral, helical groove 13 confined by the walls 14 of the several bores within which the nozzles 12 are supported by the head 11.
  • the strands 1 may be preformed, it will be understood. individually, and not collectively as part of a. continuous process of rope formation and closing, but for the sake of convenstrands have been caused to pass through the dies, the helically preformed strands designated by the characters s are brought together and closed, preferably around a core s', to form a rope of the type shown in Fig. 2.
  • the core may be either constituted by another straight1 strand, as indicated at s in Fig. 4, or the core may be of nonmetallic material such as hemp at s2 in Fig. 2 and also in Fig. 3.
  • rlhe power for drawing the core through the head 11 may be applied to the core rope at a point beyond the head, this drawing mechanism not being illustrated, as any conventional type may be used, it being only necessary that its speed be co-ordinate with the speed at which the strands should be drawn through the preforming devices, and similarly any suitable mechanism may be provided to'rotate the head with its preforming devices about the axis of the wire rope substantially onerevolution to each convolution of the helix.
  • the strands 1 are drawn from suitable supply spools and subjected to the action of the nozzles 12 which constitute the Aform of preforming device selected for illustration, and each strand emerges from its nozzle in the form of a helix ready to lay easily and without resistance on the core.
  • preforming devices illustrated in Fig. 4 have been found useful to carry the method into effect, nevertheless other forms of preforming devices may be utilized, provided that they are suitable t'o effect preformation of the strands properly so that they may be laid into a wire rope posessing the desired inert la characteristic.
  • each wire 2 of each strand likewise is preformed helically so that it also is normalized, or substantially stressfree, having a helical conformation which embodies a helix around the core of the strand, and also a helix around the axis of the strand helix, and such formation is indicated clearly in Fig. 2.
  • the complete wire rope is an inert-lay rope, and is characterized by the fact that its component strands are freed from any tendency to destructive separation, and wire rope formed according to the above process exhibits a certain residual resiliency which is highly serviceable in the prolongation of the useful life of the wire rope, the characteristie structure of the rope being illustrated,
  • inert-lay Wire strand adapted to constitute a component of an inert-lay Wire rope, the steps which comprise laying a plurality of Wires together under tension as components forming an expansile strand and subsequently subjecting said expansile strand to a force adapted to impart a helical formation to the strand as a unitary structure and thereby to convert said individual Wires severally from said eX- pansile formation to a substantially stress rtree inert-lay conformation, prior to laying the strand into the rope.

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  • Ropes Or Cables (AREA)
US105352A 1926-04-29 1926-04-29 Wire rope and process of making same Expired - Lifetime US1732640A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE342634D BE342634A (enrdf_load_stackoverflow) 1926-04-29
US105352A US1732640A (en) 1926-04-29 1926-04-29 Wire rope and process of making same
FR636804D FR636804A (fr) 1926-04-29 1927-06-29 Câble métallique perfectionné et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US105352A US1732640A (en) 1926-04-29 1926-04-29 Wire rope and process of making same

Publications (1)

Publication Number Publication Date
US1732640A true US1732640A (en) 1929-10-22

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ID=22305333

Family Applications (1)

Application Number Title Priority Date Filing Date
US105352A Expired - Lifetime US1732640A (en) 1926-04-29 1926-04-29 Wire rope and process of making same

Country Status (3)

Country Link
US (1) US1732640A (enrdf_load_stackoverflow)
BE (1) BE342634A (enrdf_load_stackoverflow)
FR (1) FR636804A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556164A (en) * 1947-06-06 1951-06-12 American Steel & Wire Co Apparatus for making stranded wire structures
US2811010A (en) * 1954-12-29 1957-10-29 United States Steel Corp Preforming head for wire stranding machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556164A (en) * 1947-06-06 1951-06-12 American Steel & Wire Co Apparatus for making stranded wire structures
US2811010A (en) * 1954-12-29 1957-10-29 United States Steel Corp Preforming head for wire stranding machine

Also Published As

Publication number Publication date
BE342634A (enrdf_load_stackoverflow)
FR636804A (fr) 1928-04-17

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