US539636A - Sylvania - Google Patents
Sylvania Download PDFInfo
- Publication number
- US539636A US539636A US539636DA US539636A US 539636 A US539636 A US 539636A US 539636D A US539636D A US 539636DA US 539636 A US539636 A US 539636A
- Authority
- US
- United States
- Prior art keywords
- per cent
- nickel
- aluminum
- diaphragm
- iron
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 24
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- 229910052782 aluminium Inorganic materials 0.000 description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 12
- 150000002739 metals Chemical class 0.000 description 12
- 229910052759 nickel Inorganic materials 0.000 description 12
- 239000000203 mixture Substances 0.000 description 10
- 210000000188 Diaphragm Anatomy 0.000 description 8
- 229910052709 silver Inorganic materials 0.000 description 6
- 239000004332 silver Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
Definitions
- GEORGE A NELLIS AND FLORENCE S. WVEISSER, OF ALLEGHENY, PENN- SYLVANIA.
- Ourinvention relates to the diaphragms employed for transmitting sound in electrical apparatus, such as telephones, microphones, and battery-transmitters, and it is designed to afford a diaphragm for this purpose, which shall transmit sound with greater clearness and shall not deteriorate by continued use.
- the ordinary iron disk which is used for these purposes will not retain its polished surface and hence will absorb a portion of the sound which it receives, instead of reflecting the same.
- a diaphragm made of the resulting composition possesses the quality of transmitting sound to a remarkable degree, it being very sonorous and resilient in character. On account of its resiliency, it retains its shape much better than does the ordinary diaphragm, and hence does not need adjustment toward or from other parts of the apparatus, resulting from a change of shape effected by continuous use.
- the metals which we prefer to combine with the aluminum are iron, nickel, or silver, or a combination of these metals, in any case buta small percentage of the supplementy metal being necessary. Thus, if iron is used, about two or three percent. is preferred. 1f nickel is used, preferably about four or five per cent. is employed, and about the same per cent. in the case of silver. WVhen nickel or silver is employed, we preferably also add a small per cent. of iron.
- the composition we prefer is the nickelaluminum alloy, which is preferably in about the following proportions: aluminum, ninetyfour per cent; nickel, four per cent; iron, one per cent; silicon, one per cent.
- a plate thus formed of aluminum with a small per cent. of another metal or metals will receive and retain a high polish, and hence not absorb a portion of the sound received.
- the acid of the breath will not affect or tarnish the surface, and the composition is exceedingly springy and sonorous.
- a transmitter-diaphragm consisting of a plate composed of a mixture of aluminum and nickel; substantially as described.
- a transmitter-diaphragm composed of aluminum with a small percentage of nickel and iron; substantially as described.
Description
UNITED STATES PATENT OFFICE.
GEORGE A. NELLIS AND FLORENCE S. WVEISSER, OF ALLEGHENY, PENN- SYLVANIA.
TRANSMITTER-DIAPHRAGM.
SPECIFICATION forming part of Letters Patent No. 539,636, dated May 21, 1895.
Application filed March 11, 1895. Eerial No. 541,334. (No model.)
To 60% whom it may concern.-
Be it known that we, GEORGE A. NELLIs and FLORENCE S. WEIssER, of Allegheny, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Transmitter-Diaphragms, of which the following is a full, clear, and exact description.
Ourinvention relates to the diaphragms employed for transmitting sound in electrical apparatus, such as telephones, microphones, and battery-transmitters, and it is designed to afford a diaphragm for this purpose, which shall transmit sound with greater clearness and shall not deteriorate by continued use. The ordinary iron disk which is used for these purposes will not retain its polished surface and hence will absorb a portion of the sound which it receives, instead of reflecting the same.
We have discovered that when aluminum is alloyed with a small portion of another metal or metals, a diaphragm made of the resulting composition possesses the quality of transmitting sound to a remarkable degree, it being very sonorous and resilient in character. On account of its resiliency, it retains its shape much better than does the ordinary diaphragm, and hence does not need adjustment toward or from other parts of the apparatus, resulting from a change of shape effected by continuous use. The metals which we prefer to combine with the aluminum are iron, nickel, or silver, or a combination of these metals, in any case buta small percentage of the supplementy metal being necessary. Thus, if iron is used, about two or three percent. is preferred. 1f nickel is used, preferably about four or five per cent. is employed, and about the same per cent. in the case of silver. WVhen nickel or silver is employed, we preferably also add a small per cent. of iron.
The composition we prefer is the nickelaluminum alloy, which is preferably in about the following proportions: aluminum, ninetyfour per cent; nickel, four per cent; iron, one per cent; silicon, one per cent. A plate thus formed of aluminum with a small per cent. of another metal or metals will receive and retain a high polish, and hence not absorb a portion of the sound received. The acid of the breath will not affect or tarnish the surface, and the composition is exceedingly springy and sonorous.
Many variations may be made in the proportions of the various metals and in the metals used for the addition, without departing from our invention; since What we claim is l. A transmitter-diaphragm consisting of a plate composed of a mixture of aluminum and nickel; substantially as described.
2. A transmitter-diaphragm composed of aluminum with a small percentage of nickel and iron; substantially as described.
In testimony whereof we have hereunto set our hands.
GEO. A. NELLIS. FLORENCE S. WEISSER. Witnesses:
W. B. CORWIN, H. M. Coawrn.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US539636A true US539636A (en) | 1895-05-21 |
Family
ID=2608395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US539636D Expired - Lifetime US539636A (en) | Sylvania |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US539636A (en) |
-
0
- US US539636D patent/US539636A/en not_active Expired - Lifetime
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