GB371590A - Improvements in and relating to methods of creating high vacua in electric discharge devices - Google Patents
Improvements in and relating to methods of creating high vacua in electric discharge devicesInfo
- Publication number
- GB371590A GB371590A GB11626/31A GB1162631A GB371590A GB 371590 A GB371590 A GB 371590A GB 11626/31 A GB11626/31 A GB 11626/31A GB 1162631 A GB1162631 A GB 1162631A GB 371590 A GB371590 A GB 371590A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anodes
- electrode
- discharge
- air
- prevent
- 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
- H01J9/385—Exhausting vessels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
371,590. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Nolte, H. J. ; 1710, Rugby Road, Schenectady, New York, U.S.A.) April 14, 1931, No. 11026. Convention date, April 14, 1930. [Class 39 (i).] Gas is removed from the metal of a thin, hollow electrode of a discharge device by simultaneously fine-evacuating the envelope and rough-evacuating the interior of the electrode, and heating the electrode, a cooling stream of air being admitted to the interior of the electrode to prevent overheating. As shown, each anode 2 is of semicircular shape and is divided by a ridge 5 to form two channels connected with metal pipes 7, 9. The pipe 9 has a sleeve 12 closed by a screw 11 having a small axial opening 10, Fig. 3. The envelope in connected to a high vacuum pump through a tube 6, and the tubes 7 are connected with a rough pump, a discharge being passed between the filament 3 and anodes. A jet of air is thus drawn through the anodes of sufficient volume to prevent overheating but at a sufficiently low pressure to prevent deformation of the anodes due to difference of internal and external pressures. Cooling jackets 15 on the pipes 7 prevent excess heating of rubber joints 14. Cooling water or air is supplied to the anodes during operation. The discharge is controlled by magnetic fields set up by coils 4 so as to generate high frequency current. Specification 307,053, [Class 39 (i), Electric lamps, Arc &c.], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US371590XA | 1930-04-14 | 1930-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB371590A true GB371590A (en) | 1932-04-28 |
Family
ID=21892760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11626/31A Expired GB371590A (en) | 1930-04-14 | 1931-04-14 | Improvements in and relating to methods of creating high vacua in electric discharge devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB371590A (en) |
-
1931
- 1931-04-14 GB GB11626/31A patent/GB371590A/en not_active Expired
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