NL49681C - - Google Patents
Info
- Publication number
- NL49681C NL49681C NL49681DA NL49681C NL 49681 C NL49681 C NL 49681C NL 49681D A NL49681D A NL 49681DA NL 49681 C NL49681 C NL 49681C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
- H01J1/18—Supports; Vibration-damping arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
- H01J19/48—Mountings for individual electrodes
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1112837A GB494100A (en) | 1937-04-19 | 1937-04-19 | Improvements in or relating to thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL49681C true NL49681C (en) |
Family
ID=9980545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL49681D NL49681C (en) | 1937-04-19 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE763706C (en) |
| GB (1) | GB494100A (en) |
| NL (1) | NL49681C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2518308A (en) * | 1948-09-14 | 1950-08-08 | Bell Telephone Labor Inc | Electron discharge device unit mounting |
| DE1118368B (en) * | 1958-04-10 | 1961-11-30 | Siemens Edison Swan Ltd | Incandescent cathode tubes, in which a tubular cathode and an anode surrounding this cathode are held by mica washers |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT87845B (en) * | 1917-01-23 | 1922-04-10 | Siemens Ag | Intermediate electrode in hot cathode tubes. |
| AT85417B (en) * | 1918-04-16 | 1921-09-10 | Siemens Ag | Clamping device for the hot cathode of discharge tubes. |
| NL41316C (en) * | 1934-05-03 |
-
0
- NL NL49681D patent/NL49681C/xx active
-
1937
- 1937-04-19 GB GB1112837A patent/GB494100A/en not_active Expired
-
1938
- 1938-04-01 DE DEI60981D patent/DE763706C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB494100A (en) | 1938-10-19 |
| DE763706C (en) | 1953-11-09 |