GB479699A - Improvements relating to electric discharge devices - Google Patents
Improvements relating to electric discharge devicesInfo
- Publication number
- GB479699A GB479699A GB31058/36A GB3105836A GB479699A GB 479699 A GB479699 A GB 479699A GB 31058/36 A GB31058/36 A GB 31058/36A GB 3105836 A GB3105836 A GB 3105836A GB 479699 A GB479699 A GB 479699A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- shield
- envelope
- electrodes
- getter
- 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
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
- H01J19/44—Insulation between electrodes or supports within the vacuum space
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0002—Construction arrangements of electrode systems
Landscapes
- Discharge Lamp (AREA)
Abstract
479,699. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 13, 1936, No. 31058. Convention date, Nov. 20, 1935. [Class 39 (i)] An electric discharge device is provided with a structure for supporting the anode independently of the cathode and grid members, which also serves as a shield to prevent the deposition of getter material on the electrodes or the insulation between the electrodes. In the form shown, a metal envelope 1 is closed at one end by a member 2 to which is secured a cylindrical shield 16 having outwardly flanged edges. The anode 11 is supported from the shield by mica strips 15 secured by eyelets 17, and the getter is located in a pocket 20 in the space between the shield and the envelope. When the getter is vaporized by heating the pocket 20, the flange 18 acts as a nozzle to direct the vapour away from the electrode structure. The remaining electrodes are supported independently of the anode by insulating spacers 13, the upper spacer having a flanged portion engaging the reduced end of the envelope. When the anode is at the same potential as the envelope, the strips 15 may be metallic'. Specification 443,767 is referred to. The Specification as open to inspection under Sect. 91 states that the anode and shield may be made in one piece. Alternatively, the anode may be supported independently of the shield 16 or may form the envelope. This subjectmatter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US479699XA | 1935-11-20 | 1935-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB479699A true GB479699A (en) | 1938-02-10 |
Family
ID=21952045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31058/36A Expired GB479699A (en) | 1935-11-20 | 1936-11-13 | Improvements relating to electric discharge devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB479699A (en) |
-
1936
- 1936-11-13 GB GB31058/36A patent/GB479699A/en not_active Expired
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