US476464A - Metallic-circuit cable - Google Patents
Metallic-circuit cable Download PDFInfo
- Publication number
- US476464A US476464A US476464DA US476464A US 476464 A US476464 A US 476464A US 476464D A US476464D A US 476464DA US 476464 A US476464 A US 476464A
- Authority
- US
- United States
- Prior art keywords
- metallic
- strips
- strip
- conductor
- circuit cable
- 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
Links
- 239000004020 conductor Substances 0.000 description 10
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
- H01B7/046—Flexible cables, conductors, or cords, e.g. trailing cables attached to objects sunk in bore holes, e.g. well drilling means, well pumps
Definitions
- This invention has forits object to provide an improved metallic circuit.
- a metallic conducting-wire is covered with one or more layers of insulation, about which are wound spirally two preferably-fiat conducting-strips,one of which is wound over and to cover the space between the spiral turns of the other strip, the whole being preferably covered with an insulating substance.
- One part of the invention therefore consists in the combination, with an insulated conductor, of two metal strips wound spirally about the same, one of the said strips being wound over and upon and to cover the space between the turns of the other of said strips, the successive convolutions of each strip being separated, substantially as will be described.
- the drawing represents a conductor embodying this invention.
- A represents a conductor covered with one or more layers or windings of insulation Z) b, about which is wound spirally the strip 0.
- second strip (Z is wound spirally over and upon the said strip 0 and to cover the space 5 between the successive spiral windings or turns of the said strip 0, so that a current of electricity sent over the strip 0 will not be compelled to follow the spiral turns thereof, which necessarily increase the resistance, but may pass from one turn to the other through the outer strip 01, and thus pass in a substantially director straight line along the conductor.
- An outer coating of insulation 6 is also preferably provided, as shown.
- the insulation 1 which separates the inner conductor A from the outer strips 0 (Z, will still be preserved from injury by the overlapping windings of the said outer strips, which effectually exclude all air and moisture from the insulation beneath.
- the spirallywvound strips 0 Z as conductors, they may be employed with advantage as a flexible metallic armor for the conductor A to protect the latter and to pre vent abrasion, to which insulated conductors are subject, and to this end the said armorstrips are adapted for use in connection with underground and submarine cables and the like.
- I claim The combination, with an insulated conductor, of two metallic strips wound spirally about the same, one of said strips being wound over and upon and to coverthe space between the turns of the other of said strips, the successive convolutions of each strip being separated, substautially as described.
Landscapes
- Communication Cables (AREA)
- Insulated Conductors (AREA)
- Cable Accessories (AREA)
Description
(N0 MOM-3L) C. E. JACKSON.
METALLIC GIRGUIT CABLE.
No. 476,464. Patented June 7,1892.
wzkmessea, v
CJkwrZes Emory UNITED STATES PATENT OFFICE.
CHARLES E. JACKSON, OF BOSTON, MASSACHUSETTS.
METALLIC-.CIRCUIT CABLE.
' SPECIFICATION forming part of Letters Patent No. 476,464, dated June '7, 1892.
Application filed November 12, 1891. Serial No. 4:11 702| (N0 model.)
T0 at whom it may concern.-
Be it known that 1, CHARLES E. JACKSON, of Boston, county of Suifolk, State of Massachusetts, have invented an Improvement in Metallic Circuits, of which the following description, in connection with the accompanying drawing, is a specification, like letters and figures 011 the drawing representinglike parts.
This invention has forits object to provide an improved metallic circuit.
In accordance with this invention a metallic conducting-wire is covered with one or more layers of insulation, about which are wound spirally two preferably-fiat conducting-strips,one of which is wound over and to cover the space between the spiral turns of the other strip, the whole being preferably covered with an insulating substance.
One part of the invention therefore consists in the combination, with an insulated conductor, of two metal strips wound spirally about the same, one of the said strips being wound over and upon and to cover the space between the turns of the other of said strips, the successive convolutions of each strip being separated, substantially as will be described.
The drawing represents a conductor embodying this invention.
A represents a conductor covered with one or more layers or windings of insulation Z) b, about which is wound spirally the strip 0. A
second strip (Z is wound spirally over and upon the said strip 0 and to cover the space 5 between the successive spiral windings or turns of the said strip 0, so that a current of electricity sent over the strip 0 will not be compelled to follow the spiral turns thereof, which necessarily increase the resistance, but may pass from one turn to the other through the outer strip 01, and thus pass in a substantially director straight line along the conductor. An outer coating of insulation 6 is also preferably provided, as shown. If the outer coating of insulation 6 should be injured or destroyed at any point by reason of the conductor chafing against a building or tree, the insulation 1), which separates the inner conductor A from the outer strips 0 (Z, will still be preserved from injury by the overlapping windings of the said outer strips, which effectually exclude all air and moisture from the insulation beneath. Should it not be desired to utilize the spirallywvound strips 0 (Z as conductors, they may be employed with advantage as a flexible metallic armor for the conductor A to protect the latter and to pre vent abrasion, to which insulated conductors are subject, and to this end the said armorstrips are adapted for use in connection with underground and submarine cables and the like.
I claim The combination, with an insulated conductor, of two metallic strips wound spirally about the same, one of said strips being wound over and upon and to coverthe space between the turns of the other of said strips, the successive convolutions of each strip being separated, substautially as described.
In testimony whereof I have si ned my name to this specification in the presence of two subscribing witnesses.
CHARLES E. JACKSON.
\Vitnesses:
FREDERICK L. EMERY, EMMA J. BENNETT,
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US476464A true US476464A (en) | 1892-06-07 |
Family
ID=2545320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US476464D Expired - Lifetime US476464A (en) | Metallic-circuit cable |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US476464A (en) |
-
0
- US US476464D patent/US476464A/en not_active Expired - Lifetime
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