US342523A - Compound electric cable - Google Patents

Compound electric cable Download PDF

Info

Publication number
US342523A
US342523A US342523DA US342523A US 342523 A US342523 A US 342523A US 342523D A US342523D A US 342523DA US 342523 A US342523 A US 342523A
Authority
US
United States
Prior art keywords
electric cable
compound electric
covering
libbey
conducting material
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
Publication date
Application granted granted Critical
Publication of US342523A publication Critical patent/US342523A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables
    • H01B9/02Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • H01B9/027Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of semi-conducting layers

Definitions

  • the object of my invention is to utilize any number oeleetric currents passing simultaneously th rough a wire for telegraphieand telephonie purposes.
  • A is a central iron core7 surrounding which is a covering or casing of some suitable noncondueting material, B.
  • B Surrounding thelatter is a covering or coating of copper, O, and

Description

(No Model.)
- E. W. LIBBEY.
COMPCUND ELECTRIC CABLE.
No. 342,523. Patented May 25, 1886.
www
N, zum www. www l:4 c.
UNITED STATES PATENT OEEICE.
HOSEA. XV. LIBBEY, OF BOSTON, llIASSOHUSETTS.
COMPOUND ELECTRIC'CABLE.
SPECIFICATION forming part of Letters Patent No. 342,523, dated .May 25, 1886.
Application liled June 22, 1885.
To all 107mm zit may concern-.-
i'e it known that I, Hosen XV. LIBBEY, a citizen ot' the United States, residing at Boston, in the county of Su tt'ollr and State of Massachusetts, have invented a new and useful lmprovementin OompoundElectric Cables, of which the following is a specification.
The object of my invention is to utilize any number oeleetric currents passing simultaneously th rough a wire for telegraphieand telephonie purposes.
section and outside view of the same.
A is a central iron core7 surrounding which is a covering or casing of some suitable noncondueting material, B. Surrounding thelatter is a covering or coating of copper, O, and
The above is to be surrounded or eovaround this another covering of non-conducting material, B. Surrounding all these are alternate coverings of copper and non-conducting material, as many may be desired. Over the outermost covering or easing is an outside covering` ot' Zinc, D.
By means of the above-described combination l am enabled to transmit au independent current through the iron core and through each separate metallic easingoreovering, thus producing or transmitting a multiplicity of currents through one wire.
Vhat I claim as my invention, and desire to secure by Letters Patent, is-
An iron core surrounded by a non-conducting material, and then a coating ot'eopper,and then a non-conducting material, and so on to any desired number of alternate copper coatings and non-conducting materials, the whole covered with a coating or" zinc to resist elementary action and act as an assistant in retaining the electric current.
In testimony whereofl have signed my name to this specification in the presence of two suhscribing witnesses.
HOSEA W'. LIBBEY.
`\\f"itnesses:
J. H. ADAMS, E. PLANTA.
US342523D Compound electric cable Expired - Lifetime US342523A (en)

Publications (1)

Publication Number Publication Date
US342523A true US342523A (en) 1886-05-25

Family

ID=2411605

Family Applications (1)

Application Number Title Priority Date Filing Date
US342523D Expired - Lifetime US342523A (en) Compound electric cable

Country Status (1)

Country Link
US (1) US342523A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955968A (en) * 1955-03-11 1960-10-11 Western Electric Co Methods of making composite electrical conductors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955968A (en) * 1955-03-11 1960-10-11 Western Electric Co Methods of making composite electrical conductors

Similar Documents

Publication Publication Date Title
US342523A (en) Compound electric cable
US508687A (en) Cleat for electric wiring
US479525A (en) Frederic a
US403262A (en) Covering for electric cables
US285673A (en) Hebbebt o
US273305A (en) Underground conduit for electric wires
US305475A (en) Electrical comuctob
US1514857A (en) Fire bar for electric water heaters
US699761A (en) Insulator.
US305854A (en) Electric cable
US386321A (en) Everett hoeton
US716311A (en) Electrical conductor.
US473353A (en) Island
US507941A (en) Sixteenths to abner owens and john a
US190391A (en) Improvement in lightning-rods
US267279A (en) Ments
US485106A (en) Insulator
US286698A (en) Henley
US239538A (en) Conductor for oil-cables
US313380A (en) Sidney f
US373394A (en) Electric cable
US473351A (en) Island
US483124A (en) ahearn
US233440A (en) Island
US348371A (en) William s