GB589215A - Improvements in or relating to metal to glass seals - Google Patents
Improvements in or relating to metal to glass sealsInfo
- Publication number
- GB589215A GB589215A GB700145A GB700145A GB589215A GB 589215 A GB589215 A GB 589215A GB 700145 A GB700145 A GB 700145A GB 700145 A GB700145 A GB 700145A GB 589215 A GB589215 A GB 589215A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductor
- cup
- lead
- eyelet
- metal
- 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
- H01J13/34—Igniting arrangements
-
- 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
- H01J13/48—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
-
- 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
- H01J2893/0087—Igniting means; Cathode spot maintaining or extinguishing means
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
589,215. Discharge apparatus. SHEPHERD, G. R. (Westinghouse Electric International Co.). March 20, 1945, No. 7001. [Class 39 (i)] [Also in Group XXXVI] In a lead-in seal for electric-discharge devices, shown applied to a mercury-vapour rectifier having a mercury cathode 12, a solid anode 13, and a power-lead 20, the lead-in conductor 16 passes freely through a ceramic sleeve 18 which is sealed to the wall 14 of the housing 11. In the form shown in Fig. 1, the conductor 16 is preferably formed of steel, an eyelet 21 and cup 25 being sealed to a glass bead 19 on the lower end of the sleeve 18. The parts 21, 25 may be formed of alloy known under the Registered Trade Mark " Kovar " ; or metal such as tungsten may be used. The flanged end of the eyelet 21 is welded &c. to the bottom wall 14, a head 24 on the conductor 16 and a pin 27, carrying a contact-member 28, being similarly secured to the cup 25. In the modification shown in Fig. 4; the cup 25 is omitted, the conductor 16a being sealed directly to the glass bead 19a which, as in the other form, carries a metal eyelet 21a for attachment to the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB700145A GB589215A (en) | 1945-03-20 | 1945-03-20 | Improvements in or relating to metal to glass seals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB700145A GB589215A (en) | 1945-03-20 | 1945-03-20 | Improvements in or relating to metal to glass seals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB589215A true GB589215A (en) | 1947-06-13 |
Family
ID=9824730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB700145A Expired GB589215A (en) | 1945-03-20 | 1945-03-20 | Improvements in or relating to metal to glass seals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB589215A (en) |
-
1945
- 1945-03-20 GB GB700145A patent/GB589215A/en not_active Expired
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