US2126290A - Electrical cable - Google Patents

Electrical cable Download PDF

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Publication number
US2126290A
US2126290A US100271A US10027136A US2126290A US 2126290 A US2126290 A US 2126290A US 100271 A US100271 A US 100271A US 10027136 A US10027136 A US 10027136A US 2126290 A US2126290 A US 2126290A
Authority
US
United States
Prior art keywords
conductor
edge
tape
seam
teeth
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
US100271A
Other languages
English (en)
Inventor
George A Seeley
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.)
AT&T Corp
Original Assignee
Western Electric 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 BE421296D priority Critical patent/BE421296A/xx
Priority to NL47103D priority patent/NL47103C/xx
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to US100271A priority patent/US2126290A/en
Priority to GB10913/37A priority patent/GB476098A/en
Priority to FR821766D priority patent/FR821766A/fr
Priority to DEI58943D priority patent/DE715555C/de
Application granted granted Critical
Publication of US2126290A publication Critical patent/US2126290A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1808—Construction of the conductors
    • 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
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5185—Tube making

Definitions

  • FIG. 1 ELECTRICAL CABLE Filed Sept. ll, 1936 FIG.
  • This invention relates to electrical cables and more particularly to a coaxial cable in which one conductor is substantially a hollow metallic cylinder enclosing another metallic conductor of smaller diameter spaced from and supported in the cylinder by spacing members of insulating material.
  • Coaxial conductor pairs also are frequently used to form an outgoing and return circuit for an alternating electrical current oi high frequency. It is therefore particularly essential that the inner surface of the outer conductor, which. faces and is nearest to the inner conductor, shall be smooth, continuous and free from irregularities so far as may he. I
  • Objects of the present invention are to "provide a coaxial conductor pair which shall he simple in structure, easy to manufacture, relatively low torsional rigidity at least in one direction of pnssible twist, and having an outer conductor in hei'ently smooth Within.
  • One embodiment of the invention contemplates a coaxial conductor having any suitahle form inner or axial conductor such as solid wire, hollow strand, or compound strand, .with a plu rality of spacing members or insulating material thereon, and with an outer conductor of cylindrical form on the spacing members, the outer conductor being a strip or tape oi metal formed longi tudinally into a cylinder and having its edges meeting and held in place by integral means on terior to the cylinder, but preferably such as to permit of longitudinal displacement or? the abutted edges of the tape relatively to each other, while preventing any radial displacement of the edges.
  • Fig. l is a broken view in side elevation of a part of a coaxial conductor pair constructed in accordance with the invention
  • Fig. 2 is an end view thereoi
  • Fig. 3 is a side view on a reduced scale of a portion of the pair after being twisted
  • Fig. 4 is an end view thereof
  • Fig. 5 is a plan view of a portion oi a tape to be formed into an outer conductor
  • Fig. 6 is an end view thereot.
  • a coaxial conductor pair comprises an in ner or axial conductor to, a plurality of slotted spacing disks it, it mounted on the inner condoctor at intervals therealong, and a cylindrical outer conductor 62 resting on the peripheries of the disits M, ii to be supported on and spaced from the inner conductor thereby.
  • the inner conductor herein disclosed is preferably a smooth solid circularly cylindrical wire of copper, but may be of other metal or of other form if desired, e. g., a cylinder, a plurality of associated strands, or any other practicable form,
  • the dislgs ii it may be thought of as molded or formed or cut from any suitable insulating material, e. g., artificial resin, rubber, cellulose plastic, or the lilac and may have any form suitable for the purpose.
  • the outer conductor (32 is a strip or tape of able material such as copper, bronze, aluminum or other appropriate conductive substance, stormed over the peripheries of the disks it, it into cylinder supported thereon, the cylinder being in this instance of circular cross-section, if desired it may in some cases be lfiOll-Clifillllf
  • the strip is formed along both edges thereof spaced, integral, outwardly projecting teeth it; These teeth M, i i are oilset icy about the thickness of the tape toward that side of the tape which forms the outer surface of the cylindrical outer conductor.
  • the true edges is, it of the heing aout'ted to form a seam l'l, the teeth i l oi each edge overlie the other edge, so that the teeth of each edge hold the other edge down.
  • the teeth are cold worked (as by being swedged while being cut with a punch and die, cutting rolls, or the like), they may, in the process of being formed into the cylindrical conductor, be more or less deeply imbedded into the material of the opposite edges, thus still more securely interloching the edges along the seam ll, which however, increases the torsional rigidity of the formed conductor.
  • the edges iii to slide along each other and the teeth who lions such as shown in Figs. 3 d d, as the ill I! is changed from a straight he to a heliii. s the teeth may be distributed at substantially intervals along the helical seam oi? the .ed unit.
  • the teeth may preferably be t rmed to stand at spaced intervals along i ight seam. The unit may then be twisted ei "her way;
  • the pair is not to be twisted, but it is desired to have the seam helical, the tape may be wrapped spirally instead of being formed longitudinally over the disks 'l I, H, in which case the teeth of the tape will be original] located to fall as shown in Fig. 3.
  • a cable as shown in Fig. 3, or comprising units such as shown in Fig. 3, will have much greater flexibility both in torsion and in nexure than an analogous structure with the edges of the tape welded, soldered or immovably interlocked, yet neither edge can lift above the other radially to produce any internal ridge or protuberance to harm the desired electrical properties of the pair.
  • a coaxial conductor pair the combination with an axial conductor and spacing members thereon oi an outer hollow conductor therecround and comprising a metal tape iformed into a tube with the edges the tape abutteci together to form a seam, each edge of. the tape having projecticns thereon overlying the outer side oi" the other abutting edge, the widths of the spaces between consecutive projections on either edge being greater than the widths of the projections on the other edge and the projections on either edge overlapping the other edge between consecutive projections of the other edge, the parts being so proportioned and arranged that when the conductor pair is twisted each edge and its projections are free to slide along the other edge to provide torsional flexibility, while the seam cannot open radially.
  • a coaxial conductor pair the combination with an axial conductor and spacing members thereon of an outer hollow conductor therearound and comprising a metal tape formed into a tube with the edges of the tape abutted together to form a seam, each edge or the tape having projections thereon overlying and slidable on the outer side of the other edge, so that when the conductor pair is twisted each edge and its projections are free to slide along the edge to provide torsional flexibility, while the seam cannot open radially.

Landscapes

  • Communication Cables (AREA)
  • Insulated Conductors (AREA)
  • Ropes Or Cables (AREA)
US100271A 1936-09-11 1936-09-11 Electrical cable Expired - Lifetime US2126290A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE421296D BE421296A (fr) 1936-09-11
NL47103D NL47103C (fr) 1936-09-11
US100271A US2126290A (en) 1936-09-11 1936-09-11 Electrical cable
GB10913/37A GB476098A (en) 1936-09-11 1937-04-16 Electrical cables
FR821766D FR821766A (fr) 1936-09-11 1937-05-12 Câbles électriques
DEI58943D DE715555C (de) 1936-09-11 1937-08-26 Verfahren zur Herstellung von konzentrischen Leitungen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US100271A US2126290A (en) 1936-09-11 1936-09-11 Electrical cable

Publications (1)

Publication Number Publication Date
US2126290A true US2126290A (en) 1938-08-09

Family

ID=22278922

Family Applications (1)

Application Number Title Priority Date Filing Date
US100271A Expired - Lifetime US2126290A (en) 1936-09-11 1936-09-11 Electrical cable

Country Status (6)

Country Link
US (1) US2126290A (fr)
BE (1) BE421296A (fr)
DE (1) DE715555C (fr)
FR (1) FR821766A (fr)
GB (1) GB476098A (fr)
NL (1) NL47103C (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471299A (en) * 1942-03-31 1949-05-24 Western Electric Co Cable forming machine
US2480106A (en) * 1945-06-11 1949-08-30 Int Standard Electric Corp Concentric conductor electric cable
US2606953A (en) * 1946-09-23 1952-08-12 Int Standard Electric Corp High-frequency coaxial cable outer conductor
US2653989A (en) * 1948-11-16 1953-09-29 Int Standard Electric Corp Coaxial electric cable with corrugated seam
US2695329A (en) * 1950-07-21 1954-11-23 Lignes Telegraph Telephon Electrical conductor
US3051278A (en) * 1958-02-03 1962-08-28 Mc Graw Edison Co Guy guard
US20080111655A1 (en) * 2006-11-15 2008-05-15 John Michael Wozniak Magnetic flotation device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3342834C1 (de) * 1983-11-26 1985-01-03 AEG-Telefunken Kabelwerke AG, Rheydt, 4050 Mönchengladbach Koaxialkabel

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471299A (en) * 1942-03-31 1949-05-24 Western Electric Co Cable forming machine
US2480106A (en) * 1945-06-11 1949-08-30 Int Standard Electric Corp Concentric conductor electric cable
US2606953A (en) * 1946-09-23 1952-08-12 Int Standard Electric Corp High-frequency coaxial cable outer conductor
US2653989A (en) * 1948-11-16 1953-09-29 Int Standard Electric Corp Coaxial electric cable with corrugated seam
US2695329A (en) * 1950-07-21 1954-11-23 Lignes Telegraph Telephon Electrical conductor
US3051278A (en) * 1958-02-03 1962-08-28 Mc Graw Edison Co Guy guard
US20080111655A1 (en) * 2006-11-15 2008-05-15 John Michael Wozniak Magnetic flotation device

Also Published As

Publication number Publication date
GB476098A (en) 1937-12-01
BE421296A (fr)
NL47103C (fr)
DE715555C (de) 1942-01-02
FR821766A (fr) 1937-12-13

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