US648446A - Electromagnetic coil. - Google Patents
Electromagnetic coil. Download PDFInfo
- Publication number
- US648446A US648446A US74065099A US1899740650A US648446A US 648446 A US648446 A US 648446A US 74065099 A US74065099 A US 74065099A US 1899740650 A US1899740650 A US 1899740650A US 648446 A US648446 A US 648446A
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- US
- United States
- Prior art keywords
- wire
- terminal
- coil
- electromagnetic coil
- convolutions
- 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
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/04—Arrangements of electric connections to coils, e.g. leads
Definitions
- the object of my invention is to impart in creased mechanical strength and durability to the terminal of electromagnetic coils.
- My invention includes a coil composed of a series of layers, each layer consisting of a series of insulated convolutions. The ends of the terminal convolutions are led out to form terminals of the coil.
- I employ in combination with this section or terminal Wire a section of wire, preferably of similar diameter, composed of some soft ductile metal, like tincoated copper. Two or more such wires are twisted together into a strand, and the tin coating supplies a convenient foundation for a soldered junction.
- a filament which may be either metal or fibrous, in the form of aloop or single, and preferably consists of a fibrous thread, as of silk or cotton.
- I show a coil composed of a bare wire to and a fibrous thread z', of insulating material, separating adjacent convolutions of the wire. may employ instead of the thread t a wire havin g an insulating fibrous covering. This may be electrically connected with the wire 10.
- a paper tube Between each pair of layers of wire to there is a paper tube.
- the series of paper tubes are arranged concentrically and project at each end of the tube.
- One exterior paper tube has its ends fringed or serrated, as at f, said ends being turned down upon the ends of the tubes and the coil and cemented in position.
- the projecting concentric tubes prevent the unwinding or displacement of the end convolutions of the wire 10.
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- Insulated Conductors (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ropes Or Cables (AREA)
Description
No" 648,446. Patented May I, I900.
' B. VARLEY.
ELECTROMAGNETIC COIL.
(Application fl1ed-Dec. 1B, 1899.)
(No Model.)
YV'VITNESSESE INVENTOR:
UNiTEI) STATES PATENT Erica.
RICHARD VARLEY, OF JERSEY CITY, NEIV JERSEY.
ELECTROMAGNETIC COIL.
SPECIFICATION forming part of Letters Patent No. 648,446, dated May 1, 1900.
Application filed December 18,1899. Serial No. 740,650. (No model.)
T0 (0% whom it may concern.-
Be it known that I, RICHARD VAELEY,a citizen of the United States, residing in Jersey City, county of Hudson, State of New Jersey, have invented certain new and useful Improvements in Electromagnetic Ooils,of which the following is a specification.
The object of my invention is to impart in creased mechanical strength and durability to the terminal of electromagnetic coils.
My invention includes a coil composed of a series of layers, each layer consisting of a series of insulated convolutions. The ends of the terminal convolutions are led out to form terminals of the coil. I employ in combination with this section or terminal Wire a section of wire, preferably of similar diameter, composed of some soft ductile metal, like tincoated copper. Two or more such wires are twisted together into a strand, and the tin coating supplies a convenient foundation for a soldered junction. To provide against unwinding the convolutions by any pull or strain upon the terminal which may occur, I anchor the point where the terminal is turned out from a convolution by connecting at the described point a filament, which may be either metal or fibrous, in the form of aloop or single, and preferably consists of a fibrous thread, as of silk or cotton. I tie this to the terminal at the described point, carrying the ends of the loop back along the surface of the coil and fasten it to the surface either by the use of some adhesive material or by some suitable mechanical means.
The accompanying drawing illustrates my invention.
I show a coil composed of a bare wire to and a fibrous thread z', of insulating material, separating adjacent convolutions of the wire. may employ instead of the thread t a wire havin g an insulating fibrous covering. This may be electrically connected with the wire 10. Between each pair of layers of wire to there is a paper tube. The series of paper tubes are arranged concentrically and project at each end of the tube. One exterior paper tube has its ends fringed or serrated, as at f, said ends being turned down upon the ends of the tubes and the coil and cemented in position. The projecting concentric tubes prevent the unwinding or displacement of the end convolutions of the wire 10. I take a strand of thread, like a, tying it to the wire at the point where said terminal wire leaves its convoluted form, and I carry the thread a back along the exterior surface of the coil and cement it in position, substantially as shown. To increase the mechanical strength of the terminal wire w, I take a section of wire of soft ductile material we (I prefer to use tin-coated copper) and I twist the terminal wire U), with the tinned sec tion on, into a strand 5. This affords facility for soldering to a terminal connection, like a screw-cup, and greatly increases the mechanical strength of the terminal.
What I claim, and desire to secure by Letters Patent, is-- In an electromagnetic coil a free stranded terminal consisting of a section of the coiled wire and a short section of tin-coated wire twisted therewith combined with a strand of insulating material fixed to said stranded ter-- minal and to the surface of the coil. I
RICHARD VARLEY.-
Witnesses:
THEODORE L. OUYLER, J12, ANNA M. DONLEVY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74065099A US648446A (en) | 1899-12-18 | 1899-12-18 | Electromagnetic coil. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74065099A US648446A (en) | 1899-12-18 | 1899-12-18 | Electromagnetic coil. |
Publications (1)
Publication Number | Publication Date |
---|---|
US648446A true US648446A (en) | 1900-05-01 |
Family
ID=2717018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US74065099A Expired - Lifetime US648446A (en) | 1899-12-18 | 1899-12-18 | Electromagnetic coil. |
Country Status (1)
Country | Link |
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US (1) | US648446A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2691811A (en) * | 1949-08-09 | 1954-10-19 | Bell Telephone Labor Inc | Method of producing improved leadout conductors for electrical coils |
US3718844A (en) * | 1971-01-22 | 1973-02-27 | Sangamo Electric Co | Capacitor with terminal clips |
US5331298A (en) * | 1992-01-16 | 1994-07-19 | Elmec Corporation | Inductive device for an electromagnetic delay line and method for fabricating the same |
-
1899
- 1899-12-18 US US74065099A patent/US648446A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2691811A (en) * | 1949-08-09 | 1954-10-19 | Bell Telephone Labor Inc | Method of producing improved leadout conductors for electrical coils |
US3718844A (en) * | 1971-01-22 | 1973-02-27 | Sangamo Electric Co | Capacitor with terminal clips |
US5331298A (en) * | 1992-01-16 | 1994-07-19 | Elmec Corporation | Inductive device for an electromagnetic delay line and method for fabricating the same |
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