GB366315A - Improvements in or relating to thermionic valves - Google Patents
Improvements in or relating to thermionic valvesInfo
- Publication number
- GB366315A GB366315A GB6925/31A GB692531A GB366315A GB 366315 A GB366315 A GB 366315A GB 6925/31 A GB6925/31 A GB 6925/31A GB 692531 A GB692531 A GB 692531A GB 366315 A GB366315 A GB 366315A
- Authority
- GB
- United Kingdom
- Prior art keywords
- march
- tin
- class
- electrode
- thermionic valves
- 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
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0019—Chemical composition and manufacture
- H01J2893/002—Chemical composition and manufacture chemical
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
366,315. Thermionic valves. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. March 5, 1931, No. 6925. Convention date, March 7, 1930. [Class 39 (i).] The surface of an anode or other electrode in contact with cooling water is of tin whereby the formation of scale is reduced. A coating of tin may be applied to an electrode of iron or copper. Specification 202,047, [Class 39 (i), Electric lamps, Arc &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of other unspecified highly electronegative metals. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE366315X | 1930-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB366315A true GB366315A (en) | 1932-02-04 |
Family
ID=6317746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6925/31A Expired GB366315A (en) | 1930-03-07 | 1931-03-05 | Improvements in or relating to thermionic valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB366315A (en) |
-
1931
- 1931-03-05 GB GB6925/31A patent/GB366315A/en not_active Expired
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