GB190105592A - An Improved Method of Manufacturing Filaments for Incandescing Electric Lamps. - Google Patents
An Improved Method of Manufacturing Filaments for Incandescing Electric Lamps.Info
- Publication number
- GB190105592A GB190105592A GB190105592DA GB190105592A GB 190105592 A GB190105592 A GB 190105592A GB 190105592D A GB190105592D A GB 190105592DA GB 190105592 A GB190105592 A GB 190105592A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thread
- salt
- filament
- metal
- improved method
- 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
Links
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
5592. Voelker, W. L. March 16. Incandescent lamps.-Carbide filaments, such as are described in Specifications No. 6149, A.D. 1899, and No. 11,344, A.D. 1900, are now made by soaking a thread of carbonizable material in a solution of a chloride, acetate, cyanide, or other readily-decomposed salt or organic compound of uranium, titanium, zirconium, beryllium, thorium, or like metal, drying it, and baking it at 400‹ F.; the thread is ammoniated if a salt of a mineral acid has been used. The thread is carbonized by packing it with charcoal in a crucible, which is heated to a high temperature while coal gas or gaseous hydrocarbon is passed through the materials. The filament is then mounted in bulbs the space in which is freed from oxygen, and may contain vapour of the metal or a salt of the metal used, and the filament is heated nearly to fusion by passing current through it. The thread or filament may be soaked in the salt solution at any stage in the manufacture.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB190105592T | 1901-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB190105592A true GB190105592A (en) | 1902-01-23 |
Family
ID=32421919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB190105592D Expired GB190105592A (en) | 1901-03-16 | 1901-03-16 | An Improved Method of Manufacturing Filaments for Incandescing Electric Lamps. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB190105592A (en) |
-
1901
- 1901-03-16 GB GB190105592D patent/GB190105592A/en not_active Expired
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