GB329152A - Improvements relating to thermionic valves or electron discharge tubes - Google Patents
Improvements relating to thermionic valves or electron discharge tubesInfo
- Publication number
- GB329152A GB329152A GB14531/29A GB1453129A GB329152A GB 329152 A GB329152 A GB 329152A GB 14531/29 A GB14531/29 A GB 14531/29A GB 1453129 A GB1453129 A GB 1453129A GB 329152 A GB329152 A GB 329152A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- rectifier
- improvements relating
- discharge tubes
- electron discharge
- 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
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 229910052726 zirconium Inorganic materials 0.000 abstract 2
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
- H01J7/186—Getter supports
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
- H01J7/183—Composition or manufacture of getters
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Particle Accelerators (AREA)
- Electron Beam Exposure (AREA)
- X-Ray Techniques (AREA)
Abstract
329,152. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Dec. 15, 1928, [Convention date]. Vacuum tubes; metallicvapour apparatus; R÷ntgenray tubes. - The removal of residual gas or gaseous impurities in a radio valve, R÷ntgen-ray tube, or rectifier is facilitated by arranging within the tube. a member not acting as an electrode and consisting partly or wholly of zirconium, said member being so shaped and disposed that different parts thereof are maintained at different temperatures during the operation of the tube. The Figure shows a rectifier 3 having a filling of one or more rare gases and a metal vapour and provided with a zirconium wire 11 carried by a support 9 and extending partly into a Wehnelt cathode 8. Specification 300,403 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL329152X | 1928-12-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB329152A true GB329152A (en) | 1930-05-15 |
Family
ID=19784286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14531/29A Expired GB329152A (en) | 1928-12-15 | 1929-05-09 | Improvements relating to thermionic valves or electron discharge tubes |
Country Status (5)
Country | Link |
---|---|
US (1) | US1859043A (en) |
BE (1) | BE366084A (en) |
DE (1) | DE528384C (en) |
FR (1) | FR686414A (en) |
GB (1) | GB329152A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8129548B2 (en) | 2004-10-01 | 2012-03-06 | Davy Process Technology Limited | Process for the purification of 1,4-butanediol |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2449786A (en) * | 1943-03-05 | 1948-09-21 | Westinghouse Electric Corp | Getter |
BE469199A (en) * | 1945-09-15 | |||
US2462837A (en) * | 1945-10-08 | 1949-03-01 | Tung Sol Lamp Works Inc | Incandescent lamp |
FR945456A (en) * | 1951-08-08 | 1949-05-05 | Thomson Houston Comp Francaise | Improvements to discharge tubes |
US2830215A (en) * | 1955-10-18 | 1958-04-08 | Rca Corp | Getter structure for electron tube |
-
0
- BE BE366084D patent/BE366084A/xx unknown
-
1929
- 1929-05-09 GB GB14531/29A patent/GB329152A/en not_active Expired
- 1929-11-22 US US408963A patent/US1859043A/en not_active Expired - Lifetime
- 1929-12-10 FR FR686414D patent/FR686414A/en not_active Expired
- 1929-12-10 DE DEN31281D patent/DE528384C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8129548B2 (en) | 2004-10-01 | 2012-03-06 | Davy Process Technology Limited | Process for the purification of 1,4-butanediol |
Also Published As
Publication number | Publication date |
---|---|
FR686414A (en) | 1930-07-25 |
DE528384C (en) | 1931-06-29 |
US1859043A (en) | 1932-05-17 |
BE366084A (en) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB329152A (en) | Improvements relating to thermionic valves or electron discharge tubes | |
GB300403A (en) | Improvements relating to thermionic valves or electron discharge tubes | |
GB329854A (en) | ||
GB380672A (en) | Improvements in or relating to discharge tubes for the rectification of alternating current | |
GB550551A (en) | Improvements in and relating to gettering arrangements for highly evacuated envelopes of electron discharge tubes | |
GB230497A (en) | Improvements in or relating to x-ray tubes | |
GB327048A (en) | Improvements relating to thermionic valves or electron discharge tubes | |
US2082165A (en) | Gaseous discharge rectifier | |
GB282712A (en) | Improvements relating to thermionic valves or electron discharge tubes | |
GB473398A (en) | Improvements in surfaces of high secondary-electron emission and methods of manufacturing such surfaces | |
GB265223A (en) | ||
GB331231A (en) | Improvements in and relating to thermionic valves | |
GB280851A (en) | Improvements in or relating to thermionic valves or electron discharge tubes | |
GB357774A (en) | Improvements relating to electron discharge tubes | |
GB266480A (en) | An improved form of valve for wireless transmission and reception | |
GB301455A (en) | Improvements in or relating to arc discharge tubes | |
GB471409A (en) | Improvements in the manufacture of high-vacuum tubes | |
GB514967A (en) | Improvements in and relating to electric discharge devices | |
GB251611A (en) | Improvements in or relating to vacuum electric discharge devices | |
GB313729A (en) | Improvements in and relating to metallic vapour electrical discharge devices | |
GB216896A (en) | Improvements in or relating to electric discharge tubes having an incandescent cathode, an anode and one or more grid-electrodes | |
GB502321A (en) | Improvements in electric discharge tubes | |
GB232201A (en) | Improvements in or relating to incandescent cathodes for discharge tubes | |
GB400410A (en) | Improvements in and relating to electric discharge tubes | |
GB370297A (en) | Improvements relating to electron discharge tubes or thermionic valves |