US3440721A - Method of making steel-cored aluminium cable - Google Patents

Method of making steel-cored aluminium cable Download PDF

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Publication number
US3440721A
US3440721A US642402A US3440721DA US3440721A US 3440721 A US3440721 A US 3440721A US 642402 A US642402 A US 642402A US 3440721D A US3440721D A US 3440721DA US 3440721 A US3440721 A US 3440721A
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steel
cable
making steel
cored aluminium
aluminium cable
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US642402A
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Tatsuo Kuratomi
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H01B1/023—Alloys based on aluminium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/02—Single bars, rods, wires, or strips
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49194—Assembling elongated conductors, e.g., splicing, etc.
    • Y10T29/49201—Assembling elongated conductors, e.g., splicing, etc. with overlapping orienting
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49924—Joining by deforming of parallel side-by-side elongated members
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49925—Inward deformation of aperture or hollow body wall

Definitions

  • two or more grooves are formed on the sides of an aluminum strip, the sides holding each groove are formed to be handshaped projections, a steel core is inserted into each groove and is embraced and held with said projections and then the aluminum strip is formed to be circular in the cross-section.
  • An object of the present invention is to very simply provide a method of making an electric cable from an aluminum strip having a triangular, square or hexagonal crosssection.
  • Another object of the present invention is to provide a method of making a steel-cored aluminum cable high in the flexibility.
  • FIG. 1 is a cross-sectional view of an electric cable having two steel cores according to the present invention
  • FIG. 2 is a view showing a producing process of the cable in FIG. 1;
  • FIG. 3 is a cross-sectional view of an electric cable having three steel cores according to the present invention.
  • FIG. 4 is a view showing a producing process of the cable in FIG. 3.
  • Such steel-cored aluminum cable containing two or more steel cores as is shown in FIGS. 1 and 3 is made by forming two or more grooves 2 on the sides of an aluminum strip 1 having any proper cross-section, forming band-shaped projections 3 defining each groove 2, inserting a steel core 4 into said groove 2, then bringing down said projections 3 so as to embrace and hold the steel core 4 and forming the aluminum strip 1 by any proper means so that its contour may be columnar.
  • the proper number of the steel cores to be used may be two or more. Also the completed cable may be twisted so as to be easy to wire.
  • an electric cable containing steel cores can be made from an aluminum strip having any proper triangular, square or hexagonal cross-section by a very simple process. Further, in the steel-cored aluminum cable made by the method of the present invention, as two or more comparatively fine steel cores can be used to be contained, there is an effect that the flexibility is high.
  • a method of making steel-cored aluminum cables comprising steps of forming two or more longitudinal grooves on the sides of an elongated aluminum strip, forming the sides defining each grooveto be band-shaped projections, inserting a steel core into each groove, deforming said projections to embrace and hold said steel core and then forming the aluminum strip to be circular in the cross-section.

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  • Non-Insulated Conductors (AREA)

Description

April 1969 TATSUO KURATOMI 3,44,721
METHOD OF MAKING-STEELCORED ALUMINIUM CABLE Filed May 51, 1967 INVENTOR TA TS UO K URA TOM] United States Patent Ofice 3,440,721 Patented Apr. 29, 1969 3,440,721 METHOD OF MAKING STEEL-CORED ALUMINIUM CABLE Tatsuo Kuratomi, Chigasaki-shi, Japan, assignor to T akeo Kagitani, Tokyo, Japan Filed May 31, 1967, Ser. No. 642,402 Int. Cl. H01b 13/02, 7/04 U.S. Cl. 29-624 1 Claim ABSTRACT OF THE DISCLOSURE This invention relates to a method of working steelcored aluminum cables.
According to the present invention, two or more grooves are formed on the sides of an aluminum strip, the sides holding each groove are formed to be handshaped projections, a steel core is inserted into each groove and is embraced and held with said projections and then the aluminum strip is formed to be circular in the cross-section.
An object of the present invention is to very simply provide a method of making an electric cable from an aluminum strip having a triangular, square or hexagonal crosssection.
Another object of the present invention is to provide a method of making a steel-cored aluminum cable high in the flexibility.
In the accompanying drawings,
FIG. 1 is a cross-sectional view of an electric cable having two steel cores according to the present invention;
FIG. 2 is a view showing a producing process of the cable in FIG. 1;
FIG. 3 is a cross-sectional view of an electric cable having three steel cores according to the present invention;
FIG. 4 is a view showing a producing process of the cable in FIG. 3.
The present invention shall be detailed with reference to the accompanying drawings.
Such steel-cored aluminum cable containing two or more steel cores as is shown in FIGS. 1 and 3 is made by forming two or more grooves 2 on the sides of an aluminum strip 1 having any proper cross-section, forming band-shaped projections 3 defining each groove 2, inserting a steel core 4 into said groove 2, then bringing down said projections 3 so as to embrace and hold the steel core 4 and forming the aluminum strip 1 by any proper means so that its contour may be columnar.
The proper number of the steel cores to be used may be two or more. Also the completed cable may be twisted so as to be easy to wire.
According to the present invention, an electric cable containing steel cores can be made from an aluminum strip having any proper triangular, square or hexagonal cross-section by a very simple process. Further, in the steel-cored aluminum cable made by the method of the present invention, as two or more comparatively fine steel cores can be used to be contained, there is an effect that the flexibility is high.
What is claimed is:
1. A method of making steel-cored aluminum cables comprising steps of forming two or more longitudinal grooves on the sides of an elongated aluminum strip, forming the sides defining each grooveto be band-shaped projections, inserting a steel core into each groove, deforming said projections to embrace and hold said steel core and then forming the aluminum strip to be circular in the cross-section.
7 References Cited UNITED STATES PATENTS 1,292,659 1/ 1919 Speed. 1,365,117 1/1921 Mees 29-509 X 2,132,235 10/1938 Green 174-128 X 2,250,907 7/ 1941 Edwards 174-128 2,395,878 3/1946 Keene 29-509 2,887,762 5/ 1959 Dobell. 3,201,862 8/ 1965 Gotoh 29-509 X 3,236,938 2/1966 Toedtman. 3,264,404 8/1966 Trebby et al 174-130 CHARLIE T. MOON, Primary Examiner.
US. Cl. X.R.
US642402A 1967-05-31 1967-05-31 Method of making steel-cored aluminium cable Expired - Lifetime US3440721A (en)

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US64240267A 1967-05-31 1967-05-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004015957A1 (en) * 2004-03-31 2005-10-27 CCS Technology, Inc., Wilmington Mechanically separable cable

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1292659A (en) * 1918-05-11 1919-01-28 Western Electric Co Conductor.
US1365117A (en) * 1918-03-23 1921-01-11 Mees Carl Leo Bonding-pin
US2132235A (en) * 1934-03-13 1938-10-04 Roeblings John A Sons Co Insulated electric conductor
US2250907A (en) * 1938-03-26 1941-07-29 Irving W Edwards Composite electric cable
US2395878A (en) * 1942-01-22 1946-03-05 Supperior Steel Corp Method of making bimetallic billets
US2887762A (en) * 1950-04-03 1959-05-26 Preload Co Inc Method of making prestressed structural member
US3201862A (en) * 1960-12-28 1965-08-24 Gotoh Kazuo Process for making steel-reinforced aluminum members
US3236938A (en) * 1962-03-26 1966-02-22 Jasper Blackburn Corp Compressible electrical connector
US3264404A (en) * 1964-03-26 1966-08-02 Kaiser Aluminium Chem Corp Power transmission cable

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1365117A (en) * 1918-03-23 1921-01-11 Mees Carl Leo Bonding-pin
US1292659A (en) * 1918-05-11 1919-01-28 Western Electric Co Conductor.
US2132235A (en) * 1934-03-13 1938-10-04 Roeblings John A Sons Co Insulated electric conductor
US2250907A (en) * 1938-03-26 1941-07-29 Irving W Edwards Composite electric cable
US2395878A (en) * 1942-01-22 1946-03-05 Supperior Steel Corp Method of making bimetallic billets
US2887762A (en) * 1950-04-03 1959-05-26 Preload Co Inc Method of making prestressed structural member
US3201862A (en) * 1960-12-28 1965-08-24 Gotoh Kazuo Process for making steel-reinforced aluminum members
US3236938A (en) * 1962-03-26 1966-02-22 Jasper Blackburn Corp Compressible electrical connector
US3264404A (en) * 1964-03-26 1966-08-02 Kaiser Aluminium Chem Corp Power transmission cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004015957A1 (en) * 2004-03-31 2005-10-27 CCS Technology, Inc., Wilmington Mechanically separable cable

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