GB190805416A - Improvements in Filaments for Incandescent Electric Lamps. - Google Patents
Improvements in Filaments for Incandescent Electric Lamps.Info
- Publication number
- GB190805416A GB190805416A GB190805416DA GB190805416A GB 190805416 A GB190805416 A GB 190805416A GB 190805416D A GB190805416D A GB 190805416DA GB 190805416 A GB190805416 A GB 190805416A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- heated
- carbon
- threads
- electric lamps
- 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
- Resistance Heating (AREA)
Abstract
5416. British Thomson-Houston Co., [General Electric Co.]. March 10. Carbon.-In making so-called "metallize i " carbon filaments for electric lamps, squirted cellulose threads are impregnated with a solution of a volatile inorganic substance such as a metallic chloride before being carbonized, and are then strongly heated, flast ed in benzine or a similar vapour, and again strongly heated in a known manner. Preferably a 0À15 per cent solution of sodium chloride is used to impregnate the threads, but chlorides such as t ose of potassium, barium, and calcium may be employed. The filaments may be heated in an electric furnace, while packed in flaked graphite in graphite boats, a temperature of about 2000‹ C. be ng necessary to " metallise " them. The resulting filaments are regular in section, free from spots and blisters, and have a positive resistancetemperature coefficient.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190805416T | 1908-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190805416A true GB190805416A (en) | 1908-11-12 |
Family
ID=32489011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190805416D Expired GB190805416A (en) | 1908-03-10 | 1908-03-10 | Improvements in Filaments for Incandescent Electric Lamps. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190805416A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3005764A (en) * | 1948-05-24 | 1961-10-24 | Daniels Farrington | Neutronic reactor structure |
-
1908
- 1908-03-10 GB GB190805416D patent/GB190805416A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3005764A (en) * | 1948-05-24 | 1961-10-24 | Daniels Farrington | Neutronic reactor structure |
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