GB409190A - Improvements in and relating to mercury vapour arc apparatus - Google Patents
Improvements in and relating to mercury vapour arc apparatusInfo
- Publication number
- GB409190A GB409190A GB24034/33A GB2403433A GB409190A GB 409190 A GB409190 A GB 409190A GB 24034/33 A GB24034/33 A GB 24034/33A GB 2403433 A GB2403433 A GB 2403433A GB 409190 A GB409190 A GB 409190A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- grid
- anode
- graphite
- aug
- 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
- H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
- H01J13/02—Details
- H01J13/20—Control electrodes, e.g. grid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0072—Disassembly or repair of discharge tubes
- H01J2893/0088—Tubes with at least a solid principal cathode and solid anodes
- H01J2893/009—Anode systems; Screens
- H01J2893/0092—Anodic screens or grids
Landscapes
- Primary Cells (AREA)
Abstract
409,190. Mercury-vapour apparatus. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Aug. 30, 1933, No. 24034. Convention date, Aug. 30, 1932. [Class 39 (i).] The anode 1 and the control grid 6 are housed within an arc-guiding sleeve 8, and the grid is loosely held, to prevent distortion due to thermal stresses, at the lower edge of a separate sleeve 4 which closely surrounds the anode. The anode consists of graphite, and the grid and sleeve 4 of graphite or molybdenum. A grid in the form of graphite bars or perforated sheet metal is held in position by a graphite ring 12 screwed on the sleeve 4. The sleeve 8 may be polished, both internally and externally, to minimise radiation, and, when the sleeve 4 consists of a semi-conductor, e.g. silite, a heating resistance may be provided thereon to ensure a high temperature of the anode &c. The sleeve 4 is secured by the ring 5 at a relatively cool portion of the leading-in insulator 3. The sleeve 8 is secured to the cover of the apparatus with or without interposed insulation, and the limiting resistances in the circuit of the control grid may be dispensed with when the grid is formed of semi-conducting material. A non-sontrolling grid, preferably in the form of a cylinder, for deionizing the vapour may be disposed below the control grid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE409190X | 1932-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB409190A true GB409190A (en) | 1934-04-26 |
Family
ID=6422382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24034/33A Expired GB409190A (en) | 1932-08-30 | 1933-08-30 | Improvements in and relating to mercury vapour arc apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB409190A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2400987A (en) * | 2003-04-23 | 2004-10-27 | Neil Mearns | Light fitting connector |
-
1933
- 1933-08-30 GB GB24034/33A patent/GB409190A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2400987A (en) * | 2003-04-23 | 2004-10-27 | Neil Mearns | Light fitting connector |
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