US237131A - Allen w - Google Patents
Allen w Download PDFInfo
- Publication number
- US237131A US237131A US237131DA US237131A US 237131 A US237131 A US 237131A US 237131D A US237131D A US 237131DA US 237131 A US237131 A US 237131A
- Authority
- US
- United States
- Prior art keywords
- magnetic
- filings
- diaphragms
- allen
- rose
- 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
- 210000000188 Diaphragm Anatomy 0.000 description 18
- 240000002804 Calluna vulgaris Species 0.000 description 6
- 235000007575 Calluna vulgaris Nutrition 0.000 description 6
- 230000001939 inductive effect Effects 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 241000684550 Athis Species 0.000 description 2
- 240000001144 Rosa woodsii Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052803 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001702 transmitter Effects 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
Definitions
- My invention relates to that class of electric telephones in which variations of resistance of a current traversing a galvanic circuit are produced by the varying conditions of magnetic lings capable of inductive or magnetic action included in a magnetic field therein.
- Fi gurel represents a plan view of my improved transmitter, with portions of the casing broken away; and Fig. 2,21 vertical lou gitudinal section therethrough.
- the caseO is provided with asuitable mouthpiece, A. Magnets M Ml are'secnred in this case, arranged parallel to each other, with interposed insulating material I between. One pole of each magnet is drawn out, so as to constitute an elastic or yielding diaphragm, D D', parallel to each other, lying directly beneath the mouth-piece. Filings of some metal capable of magnetic or inductive action are shown as placed loosely in the magnetic fleld between said diaphragms. Such filings may be in the form of coarse powder; but I prefer to use them in the form of slivers or lings, the length of which is three or four times as great as that of its breadth or thickness. Filings of iron, steel, aluminum, cobalt, or nickel may be employed; but I prefer the last-named metal, as being less liable to oxidation from exposure to moisture.
- Amixture of filings of different magnetic materials, or of filings and powder of homogeneous or dissimilar materials, may be employed, if preferred.
- Electro-magnets may also be used,if desired.
- Each magnet is connected, by suitable wires or binding-screws, S S', to a galvanic battery, so that the circuit passes from one diaphragm to the other through the lin gs, the resistance of the circuit being correlatively varied by variation in the condition of the filings, caused by impingement of sound-waves 0upon the diaphragm.
Description
(N Model.)
A.. W. ROSE.
Transmittialg Telephone. No. 237,131.. Patented Feb. I, 188|.
FLPERS. PHOTO-LITHOGRAPHER, WASIIDNGTON Il C.
UNITED STATES PATENT OEEICE.
ALLEN W. ROSE, OF NEW YORK, N. Y., ASSIGNOR TO CHARLES A. OHEEVER, OF SAME PLACE; SAID GHEEVER ASSIGNOR TO HIMSELF AS TRUSTEE.
TRANSMITTING-TELEPHONE.
SPECIFICATION forming part of Letters Patent No. 237,131, dated February 1, 1881.
Application filed October 26, 1880. (No model.)
.To all whom it may concern:
Be it known that I, ALLEN W. ROSE, a citi- Zen of the Dominion of Canada, now residing in the city, county, and State of New York, have invented certain new and useful Improvements in Transmitting-Telephones, of which the following is a specification.
My invention relates to that class of electric telephones in which variations of resistance of a current traversing a galvanic circuit are produced by the varying conditions of magnetic lings capable of inductive or magnetic action included in a magnetic field therein.
In other applications I'led simultaneously with this I have broadly claimed the method of operation of Athis apparatus, as well as the various modifications of its organization. I therefore limit my present claim to the specific organization specified at the close of this specication, the distinguishing characteristic of which is the interposition of magnetic filings in a magnetic field between elastic diaphragms, constituting magnetic poles.
In the accompanying drawings, Fi gurelrepresents a plan view of my improved transmitter, with portions of the casing broken away; and Fig. 2,21 vertical lou gitudinal section therethrough. A
The caseO is provided with asuitable mouthpiece, A. Magnets M Ml are'secnred in this case, arranged parallel to each other, with interposed insulating material I between. One pole of each magnet is drawn out, so as to constitute an elastic or yielding diaphragm, D D', parallel to each other, lying directly beneath the mouth-piece. Filings of some metal capable of magnetic or inductive action are shown as placed loosely in the magnetic fleld between said diaphragms. Such filings may be in the form of coarse powder; but I prefer to use them in the form of slivers or lings, the length of which is three or four times as great as that of its breadth or thickness. Filings of iron, steel, aluminum, cobalt, or nickel may be employed; but I prefer the last-named metal, as being less liable to oxidation from exposure to moisture.
Amixture of filings of different magnetic materials, or of filings and powder of homogeneous or dissimilar materials, may be employed, if preferred.
Electro-magnets may also be used,if desired.
Each magnetis connected, by suitable wires or binding-screws, S S', to a galvanic battery, so that the circuit passes from one diaphragm to the other through the lin gs, the resistance of the circuit being correlatively varied by variation in the condition of the filings, caused by impingement of sound-waves 0upon the diaphragm.
I claim as of my own invention- 1. The combination, substantially as herein set forth, of two elastic or yielding diaphragms, constituting magnetic poles'and included in a galvanic circuit, with metallic lings capable of magnetic or inductive action interposed loosely in the magnetic ield between said diaphragms.
2. The combination, substantially as herein set forth, ofthe case, the mouth-piece, the magnets, the interposed insulating material, the diaphragms constituting magnetic poles, the filings interposed in the magnetic field between said diaphragms in a loose condition, and a galvanic circuit, of which the lilings form a part.
In testimony whereof I have hereunto subscribed my name this 22d day of October, A. D. 1880.
A. W. ROSE.
Witnesses:
E. C. DAVIDSON, WILLAED L. CANDEE,
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US237131A true US237131A (en) | 1881-02-01 |
Family
ID=2306489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US237131D Expired - Lifetime US237131A (en) | Allen w |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US237131A (en) |
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0
- US US237131D patent/US237131A/en not_active Expired - Lifetime
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