GB190804461A - Improved Process of and Means for Manufacturing Filaments for Illuminating and Heating Purposes. - Google Patents
Improved Process of and Means for Manufacturing Filaments for Illuminating and Heating Purposes.Info
- Publication number
- GB190804461A GB190804461A GB190804461DA GB190804461A GB 190804461 A GB190804461 A GB 190804461A GB 190804461D A GB190804461D A GB 190804461DA GB 190804461 A GB190804461 A GB 190804461A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- filament
- thoria
- paste
- die
- 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
- Glass Compositions (AREA)
- Resistance Heating (AREA)
Abstract
4461. Michaud, G., and Delasson, E. June 10, 1907, [date applied for under Section 91 of Patents &c. Act, 1907]. Incandescent lamps.-In making filaments to be heated by gas, petroleum spirit, acetylene, lusol, or the like, silica, alumina, lime, magnesia, or a mixture of these substances is mixed with rare oxides such as thoria and ceria, and with black soap to form a paste ; traces of chromium oxide may be added. The paste is squirted by means of a piston G, Fig. 1, through a die which may have a serrated edge. A hollow filament may be made by means of a die having a central rod which is attached to a perforated partition within the cylinder. The filament traverses a vertical tube C of refractory material such as carborundum or thoria or other rare earth, heated by electric arcs one on each side of it. At the constricted lower end of the tube, the filament is cut into lengths by a knife H operated by an electro-magnet. The filaments may be arranged conically to form a mantle or vertically in one plane, and supported either at their upper or lower ends. Alternatively they may project horizontally in one plane from a vertical stem. An inverted burner has a number of filaments projecting downwards radially. Tubular bodies, or bodies having thin radially-projecting ribs, may be made by similar processes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR190804461X | 1907-06-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190804461A true GB190804461A (en) | 1908-09-10 |
Family
ID=32188347
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190804461D Expired GB190804461A (en) | 1907-06-10 | 1908-02-27 | Improved Process of and Means for Manufacturing Filaments for Illuminating and Heating Purposes. |
GB190808104D Expired GB190808104A (en) | 1907-06-10 | 1908-04-11 | Improvements in and relating to the Manufacture of Filaments for Illuminating and Heating Purposes. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190808104D Expired GB190808104A (en) | 1907-06-10 | 1908-04-11 | Improvements in and relating to the Manufacture of Filaments for Illuminating and Heating Purposes. |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB190804461A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3105052A (en) * | 1960-03-01 | 1963-09-24 | Jr Claude C Haws | Preparation of refractory oxide microspheres |
-
1908
- 1908-02-27 GB GB190804461D patent/GB190804461A/en not_active Expired
- 1908-04-11 GB GB190808104D patent/GB190808104A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3105052A (en) * | 1960-03-01 | 1963-09-24 | Jr Claude C Haws | Preparation of refractory oxide microspheres |
Also Published As
Publication number | Publication date |
---|---|
GB190808104A (en) | 1908-10-29 |
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