US370528A - Ciete d exploitation des cables electbiqijes systems beethoud - Google Patents
Ciete d exploitation des cables electbiqijes systems beethoud Download PDFInfo
- Publication number
- US370528A US370528A US370528DA US370528A US 370528 A US370528 A US 370528A US 370528D A US370528D A US 370528DA US 370528 A US370528 A US 370528A
- Authority
- US
- United States
- Prior art keywords
- ciete
- electbiqijes
- beethoud
- systems
- cables
- 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 30
- 239000011810 insulating material Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 6
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 4
- CTSLUCNDVMMDHG-UHFFFAOYSA-N Bromacil Chemical compound CCC(C)N1C(=O)NC(C)=C(Br)C1=O CTSLUCNDVMMDHG-UHFFFAOYSA-N 0.000 description 2
- 101710028061 SLC25A26 Proteins 0.000 description 2
- 206010041662 Splinter Diseases 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/226—Helicoidally wound metal wires or tapes
Definitions
- FRANCOIS BOREL OF OOIt'lAILLOD, SWITZERLAND, ASSIGNOR TO THE SO- CIETE DEXPLOITATION DES CABLES ELEOTRIQUES SYSTEME BERTHOUD,
- My invention relates to an electric cable constructed, as hereinafter described, so as to prevent induced currents in other cables and to economize the materials made use of.
- My invention is based upon the following principles: First,if an electric currentthrough two concentric conductors passes in one direction in the central conductor and in the opposite direction in the concentric conductor no induced current is set up in the neighboring conductors; second, to economize insulating material the conductors should be parallel, otherwise the current is liable to pass where the conductors are nearest to each other.
- Figure 1 shows a section of my improved cable.
- Fig. 2 shows a modification of the same.
- the central conductor, A, Fig. 1, containing one or more wires, is surrounded by ametallic tube,'13, or by helicalwound metallic ribbons; or these may be dispensed with, as seen in Fig. 2.
- the insulating material at O, surrounding the conductor, is of sufficient thickness to prevent the current passing from the conductor A to the tube D.
- the tubular conductor D is preferably of helical-wound metallic wire, E.
- ribbons surrounded by metallic F is a second coat of non'conductive ma terial.
- the exterior protecting-coat of the cable is formed of the two leaden tubes G and I, between which is inserted a coating of hydrofuge material, H, (rosin, paratiine, &c.)
- the purpose of the tube B is to avoid accidents which might be produced by one of the wires of the conductor or a metallic splinter coming near the tube D and lessening the distance through the insulating material.
- I form the metallic coats B, D, G, and I by a machine similar to a lead-pipe press, into which is introduced the insulating material, C and F, and the hydrofugematerial, H, in fusible state, as the cable is manufactured.
- the electric cable composed of the central conductor, A, the insulating material, 0, surrounding the samc, the concentric conductor D outside the insulating material, C, and parallel with the conductor A, and the insulating envelope F and protecting-tubes G I, having hydrofuge material between them and being parallel to and concentric with the conductor A, substantially as set forth.
Description
(No Model.)
ELECTRIC GABLE. No. 370,528. Patented Sept. 27, 1887.
"A! p was 4 5, 31
UNITED STATES PATENT OFFICE.
FRANCOIS BOREL, OF OOIt'lAILLOD, SWITZERLAND, ASSIGNOR TO THE SO- CIETE DEXPLOITATION DES CABLES ELEOTRIQUES SYSTEME BERTHOUD,
BOREL & CIE.
ELECTRIC CABLE.
SPECIFICATION forming part of Letters Patent No. 370.528, dated September 27, 1887.
Application filed January 3, 1887. Serial No. 123,322. (No model.)
To all whom it may concern.-
Be it known that I, FRANQOIS BOREL, engineer, of Oortaillod, Switzerland, have in I vented a new and useful Improvement in Electric Cables, of which the following is a specification.
My invention relates to an electric cable constructed, as hereinafter described, so as to prevent induced currents in other cables and to economize the materials made use of.
My invention is based upon the following principles: First,if an electric currentthrough two concentric conductors passes in one direction in the central conductor and in the opposite direction in the concentric conductor no induced current is set up in the neighboring conductors; second, to economize insulating material the conductors should be parallel, otherwise the current is liable to pass where the conductors are nearest to each other.
In the accompanying drawings, Figure 1 shows a section of my improved cable. Fig. 2 shows a modification of the same.
The central conductor, A, Fig. 1, containing one or more wires, is surrounded by ametallic tube,'13, or by helicalwound metallic ribbons; or these may be dispensed with, as seen in Fig. 2. The insulating material at O, surrounding the conductor, is of sufficient thickness to prevent the current passing from the conductor A to the tube D. The tubular conductor D is preferably of helical-wound metallic wire, E.
ribbons surrounded by metallic F is a second coat of non'conductive ma terial.
The exterior protecting-coat of the cable is formed of the two leaden tubes G and I, between which is inserted a coating of hydrofuge material, H, (rosin, paratiine, &c.)
The purpose of the tube B is to avoid accidents which might be produced by one of the wires of the conductor or a metallic splinter coming near the tube D and lessening the distance through the insulating material.
To obtain regularity in manufacturing the before-described cables, I form the metallic coats B, D, G, and I by a machine similar to a lead-pipe press, into which is introduced the insulating material, C and F, and the hydrofugematerial, H, in fusible state, as the cable is manufactured.
I claim as my invention- The electric cable composed of the central conductor, A, the insulating material, 0, surrounding the samc, the concentric conductor D outside the insulating material, C, and parallel with the conductor A, and the insulating envelope F and protecting-tubes G I, having hydrofuge material between them and being parallel to and concentric with the conductor A, substantially as set forth.
Signed by me this 6th day of December, A. D. 1886;
FRANCOIS BOREL.
Witnesses:
EDOUARD DRAY, J. A. VVAREL.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US370528A true US370528A (en) | 1887-09-27 |
Family
ID=2439542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US370528D Expired - Lifetime US370528A (en) | Ciete d exploitation des cables electbiqijes systems beethoud |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US370528A (en) |
-
0
- US US370528D patent/US370528A/en not_active Expired - Lifetime
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