GB371419A - Improvements in and relating to electrodes for thermionic tubes - Google Patents
Improvements in and relating to electrodes for thermionic tubesInfo
- Publication number
- GB371419A GB371419A GB30746/30A GB3074630A GB371419A GB 371419 A GB371419 A GB 371419A GB 30746/30 A GB30746/30 A GB 30746/30A GB 3074630 A GB3074630 A GB 3074630A GB 371419 A GB371419 A GB 371419A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- heater
- class
- wire
- auxiliary heater
- 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
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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
-
- 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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/22—Heaters
Landscapes
- Electron Sources, Ion Sources (AREA)
- Solid Thermionic Cathode (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
371,419. Thermionic valves. SCHWITZER, A. and ERBER, B., (trading as GANZ & CO., G.), 45, Van der Nullgasse, Vienna. Oct. 14, 1930, No. 30746. Convention date, July 3. [Class 39 (i).] In an indirectly heated tubular cathode a, the heating filament b consists of wire less than À1 mm. diameter wound into a helix which is in turn disposed as a zig-zag or the like of at least two sections, the heater wire being insulated from the cathode by solid insulation c which is in effective contact with both the heater and the cathode. The heater is designed to be connected to supply mains having a voltage of 100 or more. An auxiliary heater f may be provided to be supplied at low voltage for preliminary ageing purposes, and if required this auxiliary heater may render the cathode suitable for operation on high and low voltages. The cathode may be formed by a coiled wire which can then act as the auxiliary heater. Specifications 243,868, 278,787, 297,966, 320,849, 326,617, and 335,573, [all in Class 39 (i), Electric lamps, Arc &c.], are referred to. Reference has been directed by the Comptroller to Specifications 326,617 and 335,573, [both in Class 39 (i), Electric lamps, Arc &c.].
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT371419X | 1930-07-03 | ||
| AT389886X | 1930-10-06 | ||
| AT396905X | 1931-07-08 | ||
| AT396527X | 1931-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB371419A true GB371419A (en) | 1932-04-14 |
Family
ID=31950563
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30746/30A Expired GB371419A (en) | 1930-07-03 | 1930-10-14 | Improvements in and relating to electrodes for thermionic tubes |
| GB27769/31A Expired GB389886A (en) | 1930-07-03 | 1931-10-06 | Improvements in and relating to electrodes for discharge tubes |
| GB15843/32A Expired GB396905A (en) | 1930-07-03 | 1932-06-04 | Improvements in and relating to electrodes for discharge tubes |
| GB15844/32A Expired GB396527A (en) | 1930-07-03 | 1932-06-04 | Improvements in thermionic valves |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27769/31A Expired GB389886A (en) | 1930-07-03 | 1931-10-06 | Improvements in and relating to electrodes for discharge tubes |
| GB15843/32A Expired GB396905A (en) | 1930-07-03 | 1932-06-04 | Improvements in and relating to electrodes for discharge tubes |
| GB15844/32A Expired GB396527A (en) | 1930-07-03 | 1932-06-04 | Improvements in thermionic valves |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2041286A (en) |
| FR (2) | FR718982A (en) |
| GB (4) | GB371419A (en) |
| NL (1) | NL41244C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2589521A (en) * | 1952-03-18 | Heater | ||
| US2436907A (en) * | 1945-06-23 | 1948-03-02 | Nasa | Indirectly heated cathode |
| US2513798A (en) * | 1947-04-28 | 1950-07-04 | Milton L Hatfield | Centrifugal clutch |
| US3137766A (en) * | 1957-12-16 | 1964-06-16 | Norton Co | Electric wire for use at high temperatures |
| EP2511919A1 (en) * | 2011-04-11 | 2012-10-17 | ABB Technology AG | Dry transformer heating |
| JP6049398B2 (en) * | 2012-10-24 | 2016-12-21 | 東京エレクトロン株式会社 | Heater device |
-
1930
- 1930-10-14 GB GB30746/30A patent/GB371419A/en not_active Expired
- 1930-10-29 US US492020A patent/US2041286A/en not_active Expired - Lifetime
-
1931
- 1931-05-28 NL NL57059A patent/NL41244C/xx active
- 1931-06-22 FR FR718982D patent/FR718982A/en not_active Expired
- 1931-10-06 GB GB27769/31A patent/GB389886A/en not_active Expired
-
1932
- 1932-06-04 GB GB15843/32A patent/GB396905A/en not_active Expired
- 1932-06-04 GB GB15844/32A patent/GB396527A/en not_active Expired
- 1932-06-08 US US616014A patent/US2051472A/en not_active Expired - Lifetime
- 1932-06-13 FR FR41948D patent/FR41948E/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB396527A (en) | 1933-08-10 |
| FR718982A (en) | 1932-02-02 |
| NL41244C (en) | 1937-08-16 |
| GB389886A (en) | 1933-03-30 |
| US2051472A (en) | 1936-08-18 |
| US2041286A (en) | 1936-05-19 |
| FR41948E (en) | 1933-05-03 |
| GB396905A (en) | 1933-08-17 |
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