US543985A - Thomas a - Google Patents
Thomas a Download PDFInfo
- Publication number
- US543985A US543985A US543985DA US543985A US 543985 A US543985 A US 543985A US 543985D A US543985D A US 543985DA US 543985 A US543985 A US 543985A
- Authority
- US
- United States
- Prior art keywords
- cellulose
- filaments
- compound
- carbonized
- sheets
- 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
- 229920002678 cellulose Polymers 0.000 description 15
- 239000001913 cellulose Substances 0.000 description 15
- 150000001875 compounds Chemical class 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 150000001720 carbohydrates Chemical class 0.000 description 5
- 235000014633 carbohydrates Nutrition 0.000 description 5
- 239000004020 conductor Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- DSSYKIVIOFKYAU-XCBNKYQSSA-N (R)-camphor Chemical compound C1C[C@@]2(C)C(=O)C[C@@H]1C2(C)C DSSYKIVIOFKYAU-XCBNKYQSSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 241000125205 Anethum Species 0.000 description 1
- 241000723346 Cinnamomum camphora Species 0.000 description 1
- 229960000846 camphor Drugs 0.000 description 1
- 229930008380 camphor Natural products 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
- C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
Definitions
- the filaments with enlarged ends are cut or punched from the sheets or membranes thus formed, which are passed between sheets of paper or metal for the purpose, and the filaments are then carbonized by heat understrain and pressure, or the sheets or membranes may be first carbonized and the filaments'pnnched or cut 7 from the carbonized sheets'
- the cellulose or compound of cellulose may be dissolved and allowed to harden, in sheets or otherwise, into'a mass more or less solid, and may be then subjected toheat and pressure and forced through dies to form ,a. fine filament, which is cut into proper lengths and carbonized by heat under strain and pressure.
- the enlarged ends may be formed by softening the ends -of the filament by a solvent and attaching ieces of the softened material thereto, or the seas of. the filament when softened may be' doubled upon themselves or otherwise enlarged without adding extra material, the
- cellulose may be dissolved in cuprammo nic hydrate, or any compound of cellulose may be employed, such as trinitro cellulose, which may be dissolved or made 5 5 plastic by a suitable solvent, such as ethylic acetate, alcohol and ether, alcohol and camphor, acetone, nitro-benzol,aniline or glaciel acetic acid.
- a suitable solvent such as ethylic acetate, alcohol and ether, alcohol and camphor, acetone, nitro-benzol,aniline or glaciel acetic acid.
- Other carbohydrates or nitrates or other compounds thereof could be treated with proper solvents and used for the purpose.
- a dryingoil such as dill.- seed-oil, maybe added in any of the methods. before described, to increase the flexibility of the filaments produced, but the use of a.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Composite Materials (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Artificial Filaments (AREA)
Description
nurse STATES THOMAS A. EDISON, or MENLO PARK, NEW JERSEY, lissienosuo THE EDISON ELEQTRIO LIGHT COMPANY, OF NEW YORK, N. Y.
INCANDESCENT co'unucros res ELECTR-HC LAMPS.
srnotmonmon'ro mgpart of Letters Patent 1%., erases, dated August e, 1895.
Application filed August 7, 1882.-
.To all whom it may concern:
Be it'known that l, THOMAS A. EDISON, of Menlo Park, in the county of Middlesex and State of New Jersey, have invented a new and 5 useful Improvement inlncandescing Conductors for Electric Lamps; and I do hereby declare that the following is a full and exactdescription of the same.
method and material for forming flexible car-. bon filaments for useas the'incandescing'con ductors of electric lamps .which will be suitable for many purposes. This I accomplish by the employment of a carbohydrate, such as pure unstructural cellulose or some compound thereof, which is formed into filaments and carbonized or first'carbonized and then made. into filaments. By some method the cellulose or compound of cellulose is dissolved by a suitable solvent and formed intosheets or membranes by allowing it to flow upon plates and there drying it. The filaments with enlarged ends are cut or punched from the sheets or membranes thus formed, which are passed between sheets of paper or metal for the purpose, and the filaments are then carbonized by heat understrain and pressure, or the sheets or membranes may be first carbonized and the filaments'pnnched or cut 7 from the carbonized sheets' By. another method the cellulose or compound of cellulose may be dissolved and allowed to harden, in sheets or otherwise, into'a mass more or less solid, and may be then subjected toheat and pressure and forced through dies to form ,a. fine filament, which is cut into proper lengths and carbonized by heat under strain and pressure. Before carbonization the enlarged ends may be formed by softening the ends -of the filament by a solvent and attaching ieces of the softened material thereto, or the seas of. the filament when softened may be' doubled upon themselves or otherwise enlarged without adding extra material, the
' 5 shortening of the filament being provided for in cdtting;.or the hardened dissolved cellulose or compound of cellulose may be forced through dies under heat and pressure and The object There in view is to produce 'a Serial No. 68,652. (No speoim ens l formed intofsheets from which the filaments arepu'nched before or after carbonization'.
For the material I may use pure unstructural cellulose, which may be dissolved in cuprammo nic hydrate, or any compound of cellulose may be employed, such as trinitro cellulose, which may be dissolved or made 5 5 plastic by a suitable solvent, such as ethylic acetate, alcohol and ether, alcohol and camphor, acetone, nitro-benzol,aniline or glaciel acetic acid. Other carbohydrates or nitrates or other compounds thereof could be treated with proper solvents and used for the purpose. It is evident that a dryingoil, such as dill.- seed-oil, maybe added in any of the methods. before described, to increase the flexibility of the filaments produced, but the use of a. I drying oil I have made the subject of a sepa' rate applicationfor patent. The carbon filaments formed inthe manner described of pure unstructurab cellulose or some compound of cellulose or of other carbohydrates or compounds of the same, have the properties of flexibility and high resistance when very thin, which are essential in incandescing conductors for electric lamps.
. vWhat I claim is- L/A-fieXiblecarbOn filament for the incandesciug conductor of an electric lamp com posed of carbonized unstrnctural cellulose or other carbo-hydrate or a compound thereof, substantially as set forth. 2. The method of producing. flexible carbon filaments for the ineandescingconductors felectric lamps, consisting in carbo hing-nu structural cellulose or other carb hydrate or a compound thereof, the material being reduced to-the proper size and shape before 'o'r after carbonization, substantially as set forth.
filaments for the iucaudescing conductors of electric lamps, -consistieg in dissolving unstructured cellulose or other carbo-hydrate one. compound thereof, and forming the same into sheets or membranes, and in punch, 9 5
ing or cutting filaments therefrom before 3.,Th'e method of forming flexible carbon carbonizing the forth.
This specification signed and witnessed this 3d day of June, 1882.
same, srbstantially as set TlIOS. A. EDISON. Witnesses:
RrcHD. N. DYER, EDWARD C. ROWLAND.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US543985A true US543985A (en) | 1895-08-06 |
Family
ID=2612732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US543985D Expired - Lifetime US543985A (en) | Thomas a |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US543985A (en) |
-
0
- US US543985D patent/US543985A/en not_active Expired - Lifetime
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