US246407A - Manufacture of electrical conductors - Google Patents
Manufacture of electrical conductors Download PDFInfo
- Publication number
- US246407A US246407A US246407DA US246407A US 246407 A US246407 A US 246407A US 246407D A US246407D A US 246407DA US 246407 A US246407 A US 246407A
- Authority
- US
- United States
- Prior art keywords
- strips
- electrical conductors
- manufacture
- rolls
- lead
- 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 title description 26
- 238000004519 manufacturing process Methods 0.000 title description 22
- 238000003825 pressing Methods 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000002452 interceptive Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/04—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a rolling mill
Definitions
- This invention has for its object the economical production of insulated and protected electrical conductors, and is especially designed for the production of underground-telegraph conductors.
- the invention is based on the principles now well known and practiced in the manufacture of lead pipe-namely, that clean lead in a warm state may be separated and reunited perfectly by the application of pressure.
- the invention further consists in the apparatus hereinafter described and claimed.
- a designates a strip ofsheet or milled lead, corrugated longitudinally; or it may be corrugated by pressing it through a suitable die, afterthe manner of forming lead pipe.
- 'b is a similar strip inverted.
- Wires c, covered with silk, cotton, kerite, or other insulating material, are laid in the grooves el or corrugations of the strips a b, by which means the wires are guided absolutely and prevented from all possible contact with each other. Then the strips a b, with the wires c, are passed between suitably corrugated or grooved rolls RR', as in Fig. 2, which exert a powerful com- (No model.)
- corrugated rolls as shown but they may be plain cylindrical rolls, in which case l would make the preparatory strips a, b grooved on one side only and lia-t on the exterior.
- the two strips a b may be of great length without in the slightest interfering with the successful production of the finished article.
- WV represents a series of reels ofinsulated wire, lw, which pass to a guiding-roll, r. .Beyond this are situated the consolidating-rolls R It.
- the two corrugated or grooved lead strips a b converge to the rolls R It', where they receive the wires 1o in their grooves, and the complete cable cr group of conductors emerge on the other side solid and continuous, requiring no additional steps to complete it.
- To facilitate the production it would he preferable to manufacture the grooved strips a b, and while they emerge from the press or rolls which produce them, and while still warm and unoxidized, to lead them directly into the rolls R It.
- a suitably-shaped draw-plate77 may be employed.
- the method of manufacturing insulated andprotected electrical conductors consisting in first producinglongitudinally grooved or corru gated strips of lead, then inserting insulated conductors in the grooves, and finally subjecting the whole to pressure, substantially as described.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insulated Conductors (AREA)
Description
(No Model.) v T. J. MGTIGHB.
MANUFAGTURE OP ELEGTBIGALUONDUGTORS.
No. 246,407. Patented Aug. 30,1881.
' WIT/H5555: i .INI/ENTOR f ATTORNEY N. PETERS. Phumlnhngnpher. wnehingmn D. C.
NITE-s STATES PATENT OFFICE.,
MANUFACTURE OF ELECTRICAL CONDUCTORS. n
SPECIFICATION forming part of Letters Patent No. 246,407, dated August 30, 1881.
Application filed July 13, 1881.
To all whom it may concern:
Be it known that I, THoMAs J. MGTIGHE, of Pittsburg, in the count-y of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in the Manufacture of Electrical Conductors; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference beinghad to theaccompanyingdrawings,which form a part of this specification, in which- Figurelshows in section the strips and wires ready to be united. Fig. 2 shows the rolls compressing the strips on the wires. Fig. 3 shows the cross-section of the completed conductor. Fig. 4 is an elevation showing the manner of continuous production.
This invention has for its object the economical production of insulated and protected electrical conductors, and is especially designed for the production of underground-telegraph conductors.
The invention is based on the principles now well known and practiced in the manufacture of lead pipe-namely, that clean lead in a warm state may be separated and reunited perfectly by the application of pressure.
It consists in producing by drawing, pressing, or rolling two correspondingly-corrugated strips of lead, placing in the corrugations of one a series of insulated wires, and then forcing the two strips together under pressure so as to unite them, thus completely incasing the insulated wires in a flexible and durable material, and doing it in a manner which permits of great facility in making very long lengths of conductor, requiring but few joints.
The invention further consists in the apparatus hereinafter described and claimed.
In the drawings, a designates a strip ofsheet or milled lead, corrugated longitudinally; or it may be corrugated by pressing it through a suitable die, afterthe manner of forming lead pipe. 'b is a similar strip inverted. Wires c, covered with silk, cotton, kerite, or other insulating material, are laid in the grooves el or corrugations of the strips a b, by which means the wires are guided absolutely and prevented from all possible contact with each other. Then the strips a b, with the wires c, are passed between suitably corrugated or grooved rolls RR', as in Fig. 2, which exert a powerful com- (No model.)
pression and unite the `adjacent: faces of the strips. I prefer corrugated rolls, as shown but they may be plain cylindrical rolls, in which case l would make the preparatory strips a, b grooved on one side only and lia-t on the exterior.
By the above process the two strips a b may be of great length without in the slightest interfering with the successful production of the finished article. This will be better understood by referring to Fig. 4. Here WV represents a series of reels ofinsulated wire, lw, which pass to a guiding-roll, r. .Beyond this are situated the consolidating-rolls R It. The two corrugated or grooved lead strips a b converge to the rolls R It', where they receive the wires 1o in their grooves, and the complete cable cr group of conductors emerge on the other side solid and continuous, requiring no additional steps to complete it. To facilitate the production it would he preferable to manufacture the grooved strips a b, and while they emerge from the press or rolls which produce them, and while still warm and unoxidized, to lead them directly into the rolls R It.
Instead ot' the rolls R R', a suitably-shaped draw-plate77 may be employed.
I am aware that insulated conductors have heretofore been inserted in metallic pipes, both flexible and rigid, and I do not therefore claim such, as my invention is widely different.
I claim as my invention- 1. The method of manufacturing insulated andprotected electrical conductors, consisting in first producinglongitudinally grooved or corru gated strips of lead, then inserting insulated conductors in the grooves, and finally subjecting the whole to pressure, substantially as described.
2. The method of manufacturing insulated and protected electrical conductors, consisting in simultaneously drawing two separate longitudinally-grooved lead strips and interposed insulated electrical conductors through a suitable compressor, substantially as described.
In testimony that I claim the foregoingl as- `my own I have hereto affixed my signature in presence oftwo witnesses.
THOMAS' J. MGTIGHE.
Witnesses:
THOMAS S. OCoNNoR, THOMAS J. PATTERSON.
IOO
Publications (1)
Publication Number | Publication Date |
---|---|
US246407A true US246407A (en) | 1881-08-30 |
Family
ID=2315733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US246407D Expired - Lifetime US246407A (en) | Manufacture of electrical conductors |
Country Status (1)
Country | Link |
---|---|
US (1) | US246407A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3054176A (en) * | 1959-07-06 | 1962-09-18 | Reynolds Metals Co | Forming system |
US3082292A (en) * | 1957-09-30 | 1963-03-19 | Gore & Ass | Multiconductor wiring strip |
US3201862A (en) * | 1960-12-28 | 1965-08-24 | Gotoh Kazuo | Process for making steel-reinforced aluminum members |
US3220107A (en) * | 1961-03-06 | 1965-11-30 | Texas Instruments Inc | Manufacture of clad rods, tubing and clad tubing |
US3220106A (en) * | 1960-10-19 | 1965-11-30 | Texas Instruments Inc | Forming and solid-phase bonding |
US3276513A (en) * | 1962-12-03 | 1966-10-04 | Jerome H Lemelson | Composite screen assembly |
US3320666A (en) * | 1964-02-26 | 1967-05-23 | Texas Instruments Inc | Cladding of core materials |
US3335488A (en) * | 1963-09-20 | 1967-08-15 | Gen Dynamics Corp | Material joining by solid state cohesion |
US3436816A (en) * | 1965-10-22 | 1969-04-08 | Jerome H Lemelson | Method of making heat transfer panelling |
US3620880A (en) * | 1969-04-07 | 1971-11-16 | Jerome H Lemelson | Apparatus and method for producing composite materials |
US4611656A (en) * | 1985-01-14 | 1986-09-16 | Kendall Jr Clarence E | Protective jacket assembly |
US5007577A (en) * | 1988-11-22 | 1991-04-16 | Sumitomo Metal Industries Ltd. | Multiple-core complex material and method of manufacturing the same |
-
0
- US US246407D patent/US246407A/en not_active Expired - Lifetime
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3082292A (en) * | 1957-09-30 | 1963-03-19 | Gore & Ass | Multiconductor wiring strip |
US3054176A (en) * | 1959-07-06 | 1962-09-18 | Reynolds Metals Co | Forming system |
US3220106A (en) * | 1960-10-19 | 1965-11-30 | Texas Instruments Inc | Forming and solid-phase bonding |
US3201862A (en) * | 1960-12-28 | 1965-08-24 | Gotoh Kazuo | Process for making steel-reinforced aluminum members |
US3220107A (en) * | 1961-03-06 | 1965-11-30 | Texas Instruments Inc | Manufacture of clad rods, tubing and clad tubing |
US3276513A (en) * | 1962-12-03 | 1966-10-04 | Jerome H Lemelson | Composite screen assembly |
US3335488A (en) * | 1963-09-20 | 1967-08-15 | Gen Dynamics Corp | Material joining by solid state cohesion |
US3320666A (en) * | 1964-02-26 | 1967-05-23 | Texas Instruments Inc | Cladding of core materials |
US3436816A (en) * | 1965-10-22 | 1969-04-08 | Jerome H Lemelson | Method of making heat transfer panelling |
US3620880A (en) * | 1969-04-07 | 1971-11-16 | Jerome H Lemelson | Apparatus and method for producing composite materials |
US4611656A (en) * | 1985-01-14 | 1986-09-16 | Kendall Jr Clarence E | Protective jacket assembly |
US5007577A (en) * | 1988-11-22 | 1991-04-16 | Sumitomo Metal Industries Ltd. | Multiple-core complex material and method of manufacturing the same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US246407A (en) | Manufacture of electrical conductors | |
US4167866A (en) | Process and device for manufacturing composite sections and similar products | |
US3649434A (en) | Encapsulating process and products of wire coated with poly(tetrafluoroethylene) | |
US504397A (en) | Electric conductor | |
US2182342A (en) | Method and apparatus for making helices without the aid of a core or mandrel | |
US941032A (en) | Process of manufacturing insulators. | |
US220907A (en) | Improvement in coating wire | |
US663490A (en) | Method of forming electrical connections. | |
US721209A (en) | Art of rolling tubes. | |
US901299A (en) | Method of producing electric coils and conductors therefor. | |
US252634A (en) | Electric cable | |
US1302563A (en) | Method for making lined bearings. | |
US1139872A (en) | Mechanism for coiling wire. | |
US1429352A (en) | Commutator-segments manufacture | |
US1677523A (en) | Solidified-seam tube | |
US469663A (en) | Edwin t | |
US369594A (en) | Manufacture of | |
GB1562925A (en) | Production of elongated products | |
US1298644A (en) | Manufacture of electric cables. | |
US652975A (en) | Rubber-covered article or tubing and method of making same. | |
US242894A (en) | delany | |
US1243179A (en) | Manufacture of flexible metal tubing. | |
US1290578A (en) | Apparatus for forming lined bushings. | |
US3575034A (en) | Method of forming | |
US1019805A (en) | Tube-drawing machine. |