US47940A - Improvement in line-wires for telegraphs - Google Patents
Improvement in line-wires for telegraphs Download PDFInfo
- Publication number
- US47940A US47940A US47940DA US47940A US 47940 A US47940 A US 47940A US 47940D A US47940D A US 47940DA US 47940 A US47940 A US 47940A
- Authority
- US
- United States
- Prior art keywords
- wire
- iron
- copper
- telegraphs
- wires
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
Definitions
- the object of our invention has been to obtain a copper wire possessing the requisite degrec of strength. for aerial telegraph-lines, and we accomplish this 'by coring a copper wire with i'ron or steel, or by covering copper wire Awith iron or steel, the copper serving mainly for the purpose of conduction and the iron imparting the necessary condition of strength.
- Ourinven tion therefore, consistsin acopper telegraphwire cored or covered, for the purpose of strength, with iron or steel.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
Description
M. G. FARMER xv G. P. MILLIKBN. TELEGRAPH WIRE.
No. 47,940 Patented May 30, 1865.
UNITED STATES PATENT OFFICE.
MOSES G. FARMER, OF SALEM, AND GEO. F. MILLIKEN, OF BOSTON, MASS.
IMPROVEMENT IN LINE-WIRES FOR TELEGRAPHS.
Specioation forming part of Letters Patent No. 47.940. dated May 30, 1865.
To all whom it may concern:
Be it known that we, MosEs G. FARMER, of Salem, Essex county, and GEORGE F. MIL- LIKEN, .of Boston, Suii'olk county, both of the State ot' Massachusetts, have invented Im-V proved Telegraph-Wire 5 and we do hereby declare that the following, taken in vconnection with the drawings which accompany and form part ot' this speciiication, is a description of our invention suiicient to enable those skilled in the art to practice it.
In the construction oi' aerial telegraph-lines the general practice, as is well known, is to use iron wire for transmission of the electric eur rent, this wire being galvanized or covered with a thin coating of zinc to prevent oxidation. In the earlier constructions `of lines it was sometimes attempted to use copper wire, but for want of tensile strength in such wire its use had to be abandoned. Yet the employment of copper wire is a desiderata-m on account of its great superiority over iron as a conductor, and could its tensile strength be madeequal to that of iron it would, to a great evtent, supersede the iron wire.
The object of our invention has been to obtain a copper wire possessing the requisite degrec of strength. for aerial telegraph-lines, and we accomplish this 'by coring a copper wire with i'ron or steel, or by covering copper wire Awith iron or steel, the copper serving mainly for the purpose of conduction and the iron imparting the necessary condition of strength.
Ourinven tion, therefore, consistsin acopper telegraphwire cored or covered, for the purpose of strength, with iron or steel.
In carrying out the invention or constructing this compound wire we prefer to core the copper with iron,fnst casting the copper around an iron har and then by the processes of rolling and drawing attenuating the same into wire by the well-known methods of wire-drawing. It will be obvious, however, that the iron can be placed around the copper and the resultant bar drawn out into a wire, leaving the copper in the center; but the rst-named lconstruction we consider'preferable, as the iron A #J E Tensile 5, strength. c: .".i .5 B u Pounds. v Pounds. No. 8 iron wire 381 1, S38 0003436 No. 9 iron Wire. 307 1, 479 0002760 No. 11 iron wire coveredwith copper to enl e it to No. 9 321 1, 326 00075 No. 11 steel wire enlarged to No.
9 with co per. 322 2, 049 .000794 No. 12 stee wire enlarged to Noi 10 with copper 264 l, 686 .000563 We claim- As a new article of manufacture, a telegraph-v wire re-enforced', for the purpose of strength, with a core or cover ol iron or steel, the wire being made by drawing a compound bar of the two metals.
In witness whereof we have hereunto set our hands lthis 31st day of January, A'. D. 1865.
MOSES G. FARMER. GEO. F. MILLIKEN.
Witnesses J. B. CROSBY, FRANCIS GoULD.
Publications (1)
Publication Number | Publication Date |
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US47940A true US47940A (en) | 1865-05-30 |
Family
ID=2117495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US47940D Expired - Lifetime US47940A (en) | Improvement in line-wires for telegraphs |
Country Status (1)
Country | Link |
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US (1) | US47940A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2719354A (en) * | 1950-11-13 | 1955-10-04 | Svenska Maskinverken Ab | Method of making extended surface heat exchanger |
US20170291116A1 (en) * | 2016-04-08 | 2017-10-12 | Tenka Labs, Inc. | Circuit blocks |
US11085595B2 (en) | 2013-09-13 | 2021-08-10 | Willis Electric Co., Ltd. | Tangle-resistant decorative lighting assembly |
US11149929B2 (en) | 2013-09-13 | 2021-10-19 | Willis Electric Co., Ltd. | Decorative lighting with reinforced wiring |
US11306881B2 (en) | 2013-09-13 | 2022-04-19 | Willis Electric Co., Ltd. | Tangle-resistant decorative lighting assembly |
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0
- US US47940D patent/US47940A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2719354A (en) * | 1950-11-13 | 1955-10-04 | Svenska Maskinverken Ab | Method of making extended surface heat exchanger |
US11085595B2 (en) | 2013-09-13 | 2021-08-10 | Willis Electric Co., Ltd. | Tangle-resistant decorative lighting assembly |
US11149929B2 (en) | 2013-09-13 | 2021-10-19 | Willis Electric Co., Ltd. | Decorative lighting with reinforced wiring |
US11306881B2 (en) | 2013-09-13 | 2022-04-19 | Willis Electric Co., Ltd. | Tangle-resistant decorative lighting assembly |
US20170291116A1 (en) * | 2016-04-08 | 2017-10-12 | Tenka Labs, Inc. | Circuit blocks |
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