GB235139A - Improvements in vacuum tubes - Google Patents
Improvements in vacuum tubesInfo
- Publication number
- GB235139A GB235139A GB6168/25A GB616825A GB235139A GB 235139 A GB235139 A GB 235139A GB 6168/25 A GB6168/25 A GB 6168/25A GB 616825 A GB616825 A GB 616825A GB 235139 A GB235139 A GB 235139A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- carrier
- getter
- magnesium
- attached
- 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
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 3
- 229910052749 magnesium Inorganic materials 0.000 abstract 3
- 239000011777 magnesium Substances 0.000 abstract 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000011800 void material 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
Landscapes
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
235,139. British Thomson-Houston Co., Ltd., (Assignees of Mitchell, L. E., and White, A. J.). June 5, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Vacuum tubes. - For completing exhaustion, a ' getter " such as magnesium is attached to that part of a plate or other electrode which is the last to attain the volatilization temperature of the " getter " when the electrode is heated by electron bombardment or by high-frequency currents. The " getter " 19, Fig. 3, may be secured to a carrier 18, attached to or integral with the " plate " electrode 15 at the end remote from the supports. Alternatively, the carrier 21, Fig. 7, may project inwards, the magnesium &c. being then attached to the lower side of the carrier so that it faces the interior of the electrode. Additional pieces of magnesium 23, Figs. 3 and 7, may be placed on the outside of the electrode itself. The carrier, like the electrode, may be of nickel or molybdenum.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US717951A US1632615A (en) | 1924-06-05 | 1924-06-05 | Vacuum tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB235139A true GB235139A (en) | 1925-10-15 |
Family
ID=24884187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6168/25A Expired GB235139A (en) | 1924-06-05 | 1925-03-06 | Improvements in vacuum tubes |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1632615A (en) |
| DE (1) | DE517975C (en) |
| FR (1) | FR604195A (en) |
| GB (1) | GB235139A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE739138C (en) * | 1928-03-08 | 1943-09-14 | Opta Radio Ag | Electron tubes with a cathode, the highly emissive coating of which is dusted onto the cathode body by eddy current heating |
-
1924
- 1924-06-05 US US717951A patent/US1632615A/en not_active Expired - Lifetime
-
1925
- 1925-03-06 GB GB6168/25A patent/GB235139A/en not_active Expired
- 1925-04-04 DE DEI25993D patent/DE517975C/en not_active Expired
- 1925-06-04 FR FR604195D patent/FR604195A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1632615A (en) | 1927-06-14 |
| FR604195A (en) | 1926-04-30 |
| DE517975C (en) | 1931-02-13 |
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