US543987A - Thomas a - Google Patents
Thomas a Download PDFInfo
- Publication number
- US543987A US543987A US543987DA US543987A US 543987 A US543987 A US 543987A US 543987D A US543987D A US 543987DA US 543987 A US543987 A US 543987A
- Authority
- US
- United States
- Prior art keywords
- filaments
- carbonization
- thomas
- sheets
- acid
- 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
- KRHYYFGTRYWZRS-UHFFFAOYSA-N HF Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 16
- 238000003763 carbonization Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 235000013311 vegetables Nutrition 0.000 description 10
- 239000002253 acid 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 6
- 239000000835 fiber Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 240000003917 Bambusa tulda Species 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 240000006962 Gossypium hirsutum Species 0.000 description 2
- 240000006240 Linum usitatissimum Species 0.000 description 2
- 235000004431 Linum usitatissimum Nutrition 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000005418 vegetable material Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
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 process of forming the filaments consists in subjecting fibrous vegetable material of any kind to the action of hydrofluoric acid, the resulting substance being carbonized, and the filaments of the desired shape being formed from said material either before or after carbonization.
- Filaments may be formed from the original fibrous material, which may be paper, wood, bamboo, cotton, flax, or any vegetable substance, such filaments being treated with the acid and then carbonized in the usual manner.
- Sheets, sticks, or blocks of the fibrous vegetable substance may be treated with the acid, and the filaments cut or punched from them either before or after carbonization; or masses of the material used may be completely dissolved by the acid, the resultant jelly-like mass being then pressed into sheets and the filaments formed from these sheets.
- the acid will be sufficiently removed from the mass by the pressure, the small quantity which remains gradually evaporating and distilling off.
- a flexible filament of carbon for the incandescing conductor of an electric lamp formed from vegetable fiber, treated before carbonization with hydrofluoric acid, substantially as set forth.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Composite Materials (AREA)
- Structural Engineering (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Sampling And Sample Adjustment (AREA)
- Golf Clubs (AREA)
Description
I UNITED STATES PATENT FFICE.
THOMAS A. EDISON OF MENLO PARK, NEW JERSEY, ASSIGNOR TO THE EDISON ELECTRIC LIGHT COMPANY, OF NEW YORK, N. Y.
FILAMENT FOR INCANDESCENT LAMPS.
SPECIFICATION forming art of Letters Patent No. 543,987, dated August 6, 1895.
Application filed October 20, 1882. Serial No. 74,786. (No specimens.)
To all whom it may concern.-
Be it known that I,- THOMAS A. EDIsoN, of Menlo Park, in the county of Middlesex and State of New Jersey, have invented a new and useful Improvement in Incandescing Conflexible, and carbonizable substance. This substance I have found to be exceedingly well adapted to form after carbonization incandescing filaments possessing the properties above mentioned.
The process of forming the filaments consists in subjecting fibrous vegetable material of any kind to the action of hydrofluoric acid, the resulting substance being carbonized, and the filaments of the desired shape being formed from said material either before or after carbonization.
Filaments may be formed from the original fibrous material, which may be paper, wood, bamboo, cotton, flax, or any vegetable substance, such filaments being treated with the acid and then carbonized in the usual manner.
Sheets, sticks, or blocks of the fibrous vegetable substance may be treated with the acid, and the filaments cut or punched from them either before or after carbonization; or masses of the material used may be completely dissolved by the acid, the resultant jelly-like mass being then pressed into sheets and the filaments formed from these sheets. The acid will be sufficiently removed from the mass by the pressure, the small quantity which remains gradually evaporating and distilling off.
What I claim is 1. A flexible filament of carbon for the incandescing conductor of an electric lamp, formed from vegetable fiber, treated before carbonization with hydrofluoric acid, substantially as set forth.
2. The process of forming flexible carbon filaments for the incandescing conductors of electric lamps, consisting in treating vegetable fiber with hydrofluoric acid and carbonizing the resulting material, such material being formed into filaments either before or after carbonization, substantially as set forth.
3. The process of forming flexible carbon filaments for the incandescing conductors of electric lamps, consisting in dissolving vegetable fiber by hydrofluoric acid, and pressing the resulting material into sheets, from which sheets the filaments are formed either before or after carbonization, substantially as set forth.
This specification signed and witnessed this 17th.day of October, 1882.
THOS. A. EDISON.
Witnesses:
H. W. SEELY, RIGHD. N. DYER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US543987A true US543987A (en) | 1895-08-06 |
Family
ID=2612734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US543987D Expired - Lifetime US543987A (en) | Thomas a |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US543987A (en) |
-
0
- US US543987D patent/US543987A/en not_active Expired - Lifetime
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