US395963A - Incandescent-lamp filament - Google Patents
Incandescent-lamp filament Download PDFInfo
- Publication number
- US395963A US395963A US395963DA US395963A US 395963 A US395963 A US 395963A US 395963D A US395963D A US 395963DA US 395963 A US395963 A US 395963A
- Authority
- US
- United States
- Prior art keywords
- filaments
- incandescent
- lamp filament
- deposit
- edison
- 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
- 239000000463 material Substances 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002195 soluble material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 2
- 229910052762 osmium Inorganic materials 0.000 description 2
- 229920000136 polysorbate Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
Definitions
- Figure l. represents an apparatus which may be conveniently employed.
- Fig. 2 is an enlarged view of a filament cut from a sheet, and I ⁇ a view of one of the screens used in depositing the filaments directly.
- A is the bell-jar of an air-pump.
- B B are glass plates held by suitable supports.
- Electrodes 1 of carbon or silicon circuit-wires I 2 lead from any suitable source of electric energy.
- the two electrodes are so placed that an arc is termed between them by the current, and the deposit proceeding in straight lines therefrom is formed evenly upon all parts of theplates. It is then stripped f off in sheets, from which the soluble material,
- filaments C are readily formed by cutting or punching. or other refractory high-resistance material material. soluble in water or alcohol such as i formed upon the plates to any desired llllClE ness, which may readily be s1 ripped oil", and
- I may, however, interposc a screen, I), be tween the arc and the plate, having apertures Z) I), through which apertures the deposit is made in the shape of a straight strip with enlarged ends, which may be bent into the loop form. In this way filaments of silicon may be formed, which it has heretofore been difficult to produce.
- ⁇ Vhat I claim is- The process ot preparing material for the manufacture of filaments for incandescent electric lamps, consisting in volatilizing a subst ancc having a high electrical resistance by the soluble material is then removed. leaving electrically heating such substance in a vacuum, causing such substance to be deposited From these sheets the flexible filaments are formed in the desired 5 shape.
- a screen of suitable material provided with one or more apertures of the shape and size desired for the filament is interposed between in the 't'orm ol' filaments or as a sheet from which filaments are formed, substantially as set forth.
Description
(No Model.)
T. A. EDISON. INGANDESGENT LAMP PILAMENT.
Patented Jan. 8, 1889 AT TEST:
UNITED STATES PATENT EEtcE,
THOMAS A. EDISON, OF MENLO PARK, XEIV JERSEY.
lNCANDESCENT-LAMP FlLAMENT.
SPECIFICATION forming part of Letters Patent No. 395,963, dated January 8, 1889. Application filed April 5, 1884. Serial No. 126,802. (No specimens.
T0 (LU whom it nmy concern/.-
Be it known that I, Tnonas A. EDISON, of Menlo Park, in the county of Middlesex. and State of New Jersey, have invented a new and useful Improvement in Incandescing Conductors t'orElectric Lamps, (Case No. il 7,)
terial in a vacuum by electrical heating and l causing it to be deposited from the vapor upon any object in the vacuum.
For the purposes of the present invention I either deposit carbon, silicon, boron, osmium,
in sheets, from which filaments for the incandescing conductors are cut, stamped, or otherwise formed; or I deposit the material directly in the filamentary form.
ithin the vacuum-chaml)er, which is exhausted in any suitable manner, I place one or more plates of polished glass of suitable size, each preferably having a coating of a form, the rest of the deposit being intercepted by the screen.
In the accompanying drawings, Figure l. represents an apparatus which may be conveniently employed. Fig. 2 is an enlarged view of a filament cut from a sheet, and I} a view of one of the screens used in depositing the filaments directly.
A is the bell-jar of an air-pump.
B B are glass plates held by suitable supports.
To the lectrodes 1 of carbon or silicon circuit-wires I 2 lead from any suitable source of electric energy. The two electrodes are so placed that an arc is termed between them by the current, and the deposit proceeding in straight lines therefrom is formed evenly upon all parts of theplates. It is then stripped f off in sheets, from which the soluble material,
if such is used, is removed, and filaments C are readily formed by cutting or punching. or other refractory high-resistance material material. soluble in water or alcohol such as i formed upon the plates to any desired llllClE ness, which may readily be s1 ripped oil", and
tenacious, flexible sheets of the carbon, silicon, or other material.
I may, however, interposc a screen, I), be tween the arc and the plate, having apertures Z) I), through which apertures the deposit is made in the shape of a straight strip with enlarged ends, which may be bent into the loop form. In this way filaments of silicon may be formed, which it has heretofore been difficult to produce.
I am aware that it has been noticed as a scientific fact that films of gold will be deposited on the walls of Geissler tubes when that metal. is subjected to the action of the electrical discharge in such tubes.
\Vhat I claim is- The process ot preparing material for the manufacture of filaments for incandescent electric lamps, consisting in volatilizing a subst ancc having a high electrical resistance by the soluble material is then removed. leaving electrically heating such substance in a vacuum, causing such substance to be deposited From these sheets the flexible filaments are formed in the desired 5 shape. To form the filaments directly, a screen of suitable material provided with one or more apertures of the shape and size desired for the filament is interposed between in the 't'orm ol' filaments or as a sheet from which filaments are formed, substantially as set forth.
This specification signed and witnessed this 22d day of January, 1884.
THOS. A. EDISON. \Vitnesses:
A. W. KIDDLE, E. C. ROWLAND.
Publications (1)
Publication Number | Publication Date |
---|---|
US395963A true US395963A (en) | 1889-01-08 |
Family
ID=2464933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US395963D Expired - Lifetime US395963A (en) | Incandescent-lamp filament |
Country Status (1)
Country | Link |
---|---|
US (1) | US395963A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2549249A (en) * | 1947-01-22 | 1951-04-17 | Western Union Telegraph Co | Method of drawing filled tantalum tubes |
US2635994A (en) * | 1950-04-27 | 1953-04-21 | Sprague Electric Co | Production of carbon resistors |
US2702274A (en) * | 1951-04-02 | 1955-02-15 | Rca Corp | Method of making an electrode screen by cathode sputtering |
US3061476A (en) * | 1958-04-01 | 1962-10-30 | Barnes Eng Co | Method of making thermistor bolometers |
US3288700A (en) * | 1963-10-23 | 1966-11-29 | Northern Electric Co | Sputtering apparatus including a folded flexible conveyor |
US5458754A (en) * | 1991-04-22 | 1995-10-17 | Multi-Arc Scientific Coatings | Plasma enhancement apparatus and method for physical vapor deposition |
-
0
- US US395963D patent/US395963A/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2549249A (en) * | 1947-01-22 | 1951-04-17 | Western Union Telegraph Co | Method of drawing filled tantalum tubes |
US2635994A (en) * | 1950-04-27 | 1953-04-21 | Sprague Electric Co | Production of carbon resistors |
US2702274A (en) * | 1951-04-02 | 1955-02-15 | Rca Corp | Method of making an electrode screen by cathode sputtering |
US3061476A (en) * | 1958-04-01 | 1962-10-30 | Barnes Eng Co | Method of making thermistor bolometers |
US3288700A (en) * | 1963-10-23 | 1966-11-29 | Northern Electric Co | Sputtering apparatus including a folded flexible conveyor |
US5458754A (en) * | 1991-04-22 | 1995-10-17 | Multi-Arc Scientific Coatings | Plasma enhancement apparatus and method for physical vapor deposition |
US6139964A (en) * | 1991-04-22 | 2000-10-31 | Multi-Arc Inc. | Plasma enhancement apparatus and method for physical vapor deposition |
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