GB670416A - Improvements in and relating to metal-vapour electric discharge apparatus - Google Patents
Improvements in and relating to metal-vapour electric discharge apparatusInfo
- Publication number
- GB670416A GB670416A GB1020647A GB1020647A GB670416A GB 670416 A GB670416 A GB 670416A GB 1020647 A GB1020647 A GB 1020647A GB 1020647 A GB1020647 A GB 1020647A GB 670416 A GB670416 A GB 670416A
- Authority
- GB
- United Kingdom
- Prior art keywords
- container
- pool
- metal
- arc
- discharge apparatus
- 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
- H01J13/04—Main electrodes; Auxiliary anodes
- H01J13/06—Cathodes
- H01J13/10—Containers for the liquid pool; Arrangements or mounting thereof
-
- 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
- H01J13/04—Main electrodes; Auxiliary anodes
- H01J13/06—Cathodes
-
- 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
- H01J13/04—Main electrodes; Auxiliary anodes
- H01J13/06—Cathodes
- H01J13/12—Positioning or moving the cathode spot on the surface of the pool
-
- 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
- H01J2893/0073—Discharge tubes with liquid poolcathodes; constructional details
- H01J2893/0074—Cathodic cups; Screens; Reflectors; Filters; Windows; Protection against mercury deposition; Returning condensed electrode material to the cathodic cup; Liquid electrode level control
- H01J2893/0075—Cathodic cups
Landscapes
- Plasma Technology (AREA)
Abstract
670,416. Metal-vapour discharge apparatus. BERTELE, H. C. April 16, 1948 [April 17, 1947], No. 10206/47. Class 39 (i). In electric discharge apparatus having a metallic pool cathode, the arc-spot is anchored to the peripheral edge of the pool by forming the container of a metal such as tungsten or molybdenum which is arc-resistant and resistant to sputtering, and is also wetted by the cathode liquid. A short heat-transfer path is thus provided to the exterior surface of the container which has an extended area, or is in contact with a forced current of cooling fluid. The container may have an additonal arcfixing surface, for example as in Fig. 6, where an annular surface 36 is formed by an annular boss 35 in the pool container 34. The surface 36 may be of a spongy nature, which assists in holding the arc, as described in Specification 670,485. In this form, a copper ring 40 with integral cooling fins 8 fits over the container. In the arrangement of Fig. 4, the pool container 4 is supported within a steel valve body 1 by means of a glass ring 15, which has a flanged shield 19 to prevent wall-to-cathode shorting by mercury deposit on the ring. Cooling air or liquid may be circulated round the container, as shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1020647A GB670416A (en) | 1947-04-17 | 1947-04-17 | Improvements in and relating to metal-vapour electric discharge apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1020647A GB670416A (en) | 1947-04-17 | 1947-04-17 | Improvements in and relating to metal-vapour electric discharge apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB670416A true GB670416A (en) | 1952-04-16 |
Family
ID=9963538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1020647A Expired GB670416A (en) | 1947-04-17 | 1947-04-17 | Improvements in and relating to metal-vapour electric discharge apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB670416A (en) |
-
1947
- 1947-04-17 GB GB1020647A patent/GB670416A/en not_active Expired
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