US316817A - Induction-coil - Google Patents
Induction-coil Download PDFInfo
- Publication number
- US316817A US316817A US316817DA US316817A US 316817 A US316817 A US 316817A US 316817D A US316817D A US 316817DA US 316817 A US316817 A US 316817A
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- United States
- Prior art keywords
- coil
- wound
- induction
- over
- layer
- 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.)
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/38—Auxiliary core members; Auxiliary coils or windings
Definitions
- My improved induction-coil is more especially designed for use in connection with telephonic transmission of speech, and is so IO shown in an application for Letters Patent filed by me on the th day of February, 1884, No. 121,419.
- the invention is not limited to such an application.
- a pair of contacts or electrodes, Zd, Ze, If, and lg, is shown in each of the primary circuits d, e,f, and g.
- These primaries are all common to a single induetioncoil, O, which is wound in the following manner: Upon the core 0 is first wound a layer of the primary circuit 9, and over that is wound a layer of the continuous secondary circuit 8. I now 40 prefer to cover this layer of the secondary coil with paper and slip over it a tubular soft-iron sheath or cover, 1). Over this tube is now wound a layer of the primary circuit f, and over this a second layer of the continnous secondary circuit 8.
- a coating of paper is preferably placed, and a second iron tube, 1), is preferably slipped over it.
- a layer of the third primary circuit, 0, is now wound 011 the tube 1), and over that a third layer of the continuous secondary sis 5:) wound.
- a covering of paper is passed over this coil, and a third iron tube, 1), is slipped over it; and on this last tube the fourth primary circuit, d, is wound, and over it the last winding of the continuous secondary circuit 5:. .9.
- Any variations of resistance in the several primary circuits which are caused by the transmitting diaphragm, or otherwise, will simultaneously act upon the single secondary line. This arrangement will give an induced 63 current of great power in that line.
- a less or greater number of primary circuits may be employed.
- a compound induction-coil formed as follows: first, of a core on which the wire of one independent primary circuit is wound, over which primary a layer of a continuous secondary wire is wound; then of a tubular iron sheath or cover 011 which is wound the wire of a second independent primary circuit, over which second primary a second layer of the same continuous secondary line is wound.
Description
(No Model.)
T. J. PERRIN.
INDUCTION COIL. No. 316,817. Patented Apr. 28, 1885.
- INVENTOR Th y J, fer-ril ,W By his .Alztorneys Cub. 0 .W
UNITED STATES PATENT ()FFICEQ THOMAS J. PERRIN, OF NEW YORK, N. Y., ASSIGNOR TO THE NATIONAL IM- PROVED TELEPHONE COMPANY, OF NEXV ORLEANS, LOUISIANA.
INDUCTION-COIL.
' FECILFIGATION to. ring partof Letters Patent No. 316,817, dated April 28, 1885.
Application filed September 23,1884. (No model.)
T (0% whom zit may concern Be it known that I, Tnoams J. PERRIN, of the city, county, and State of New York, have invented certain new and useful Improvements in Induction-Ooils, of which the following is a specification.
My improved induction-coil is more especially designed for use in connection with telephonic transmission of speech, and is so IO shown in an application for Letters Patent filed by me on the th day of February, 1884, No. 121,419. Of course, however, the invention is not limited to such an application.
In telephoning long distances and under un- I 5 favorable conditions, the ordinary single primary circuit equipped with a transmittingbattcry does not produce a sufficient electromotive force in the secondary of the inductioncoil, and there are certain objections to in 20 creasing the battery power in the primary circuit of the induction-coil. XVith my improved instrument a number of primary circuits are arranged to act directly upon a single secondary which goes to line. The electrodes in all 2 5 of said primary circuits may be controlled by a single diaphragm, in the way shown in my application above mentioned, or in any of the ways well known in the art and illustrated in various patents.
The accompanying drawing is a perspective diagram view illustrating my invention.
A pair of contacts or electrodes, Zd, Ze, If, and lg, is shown in each of the primary circuits d, e,f, and g. These primaries are all common to a single induetioncoil, O, which is wound in the following manner: Upon the core 0 is first wound a layer of the primary circuit 9, and over that is wound a layer of the continuous secondary circuit 8. I now 40 prefer to cover this layer of the secondary coil with paper and slip over it a tubular soft-iron sheath or cover, 1). Over this tube is now wound a layer of the primary circuit f, and over this a second layer of the continnous secondary circuit 8. Over this layer a coating of paper is preferably placed, and a second iron tube, 1), is preferably slipped over it. A layer of the third primary circuit, 0, is now wound 011 the tube 1), and over that a third layer of the continuous secondary sis 5:) wound. A covering of paper is passed over this coil, and a third iron tube, 1), is slipped over it; and on this last tube the fourth primary circuit, d, is wound, and over it the last winding of the continuous secondary circuit 5:. .9. Any variations of resistance in the several primary circuits which are caused by the transmitting diaphragm, or otherwise, will simultaneously act upon the single secondary line. This arrangement will give an induced 63 current of great power in that line. Of course a less or greater number of primary circuits may be employed.
I claim as my invention- 1. A compound induction-coil formed, sub- 65 stantially as set forth, of a core and a series of independent primary circuits wound alternately with layers of a continuous secondary line.
2. A compound induction-coil formed as follows: first, of a core on which the wire of one independent primary circuit is wound, over which primary a layer of a continuous secondary wire is wound; then of a tubular iron sheath or cover 011 which is wound the wire of a second independent primary circuit, over which second primary a second layer of the same continuous secondary line is wound.
In testimony whereof I have hereunto subscribed my name.
THOMAS J. PERR IN.
\Vitnesses:
.Tuo. R. J'UDEN, JOHN JUDEN.
Publications (1)
Publication Number | Publication Date |
---|---|
US316817A true US316817A (en) | 1885-04-28 |
Family
ID=2385962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US316817D Expired - Lifetime US316817A (en) | Induction-coil |
Country Status (1)
Country | Link |
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US (1) | US316817A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3153758A (en) * | 1961-12-26 | 1964-10-20 | Ca Nat Research Council | Current comparator device having plural magnetic cores and multiple windings |
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0
- US US316817D patent/US316817A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3153758A (en) * | 1961-12-26 | 1964-10-20 | Ca Nat Research Council | Current comparator device having plural magnetic cores and multiple windings |
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