GB264258A - Improved process of inserting c?sium or rubidium in an electric discharge tube - Google Patents
Improved process of inserting c?sium or rubidium in an electric discharge tubeInfo
- Publication number
- GB264258A GB264258A GB2650425A GB2650425A GB264258A GB 264258 A GB264258 A GB 264258A GB 2650425 A GB2650425 A GB 2650425A GB 2650425 A GB2650425 A GB 2650425A GB 264258 A GB264258 A GB 264258A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- rubidium
- potassium
- tube
- caesium
- 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
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
- H01J9/395—Filling vessels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Discharge Lamp (AREA)
Abstract
264,258. Wade, H., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 22, 1925. Drawings to Specification. Vacuum tubes; low-pressure metallic-vapour apparatus.-Potassium, caesium or rubidium are introduced into electric discharge tubes by introducing into the tube or into a receptacle connected thereto a mixture of one or more compounds of potassium, caesium or rubidium with one or more azides of barium or other metals of the second principal group of the periodic system and heating. The mixture may be introduced in a solid state or in the form of a solution, the sol. vent of which volatilizes when the tube is evacuated. After sealing the tube, the mixture is gently heated and the azide decomposes, the metal of the second group then reducing the compounds of potassium &c. to metal and the alkali metal produced volatilizing. A mixture of caesium chloride and barium azide mav be used. The process is applicable to tubes with incandes. cent or cold cathodes, the alkali metal forming a thin layer on, and increasing the electron emission of, incandescent cathodes and combining with residual gases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2650425A GB264258A (en) | 1925-10-22 | 1925-10-22 | Improved process of inserting c?sium or rubidium in an electric discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2650425A GB264258A (en) | 1925-10-22 | 1925-10-22 | Improved process of inserting c?sium or rubidium in an electric discharge tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB264258A true GB264258A (en) | 1927-01-20 |
Family
ID=10244699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2650425A Expired GB264258A (en) | 1925-10-22 | 1925-10-22 | Improved process of inserting c?sium or rubidium in an electric discharge tube |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB264258A (en) |
-
1925
- 1925-10-22 GB GB2650425A patent/GB264258A/en not_active Expired
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