GB775277A - Improvements in or relating to thermionic valves or electron tubes - Google Patents
Improvements in or relating to thermionic valves or electron tubesInfo
- Publication number
- GB775277A GB775277A GB889954A GB889954A GB775277A GB 775277 A GB775277 A GB 775277A GB 889954 A GB889954 A GB 889954A GB 889954 A GB889954 A GB 889954A GB 775277 A GB775277 A GB 775277A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- support
- metal
- strip
- march
- 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
-
- 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
- Lasers (AREA)
Abstract
775,277. Discharge tubes. PLESSEY CO. Ltd. March 25, 1955 [March 26, 1954], No. 8899/54. Class 39(1). A centring and supporting member for an electrode system is of metal having an insulating coating or film of oxide at least where it touches the system. In one form the support member 1, of very pure aluminium, is anodised to form an insulating layer 1a, the electrodes 4 being supported in suitable indentations. The support may be formed as a long narrow strip, afterwards folded in two, or as a blanked out slotted form, afterwards compressed around the electrodes. Alternatively the supporting strip 20 with its anodised coating 21 may be bent into a U-shape to grip the electrodes 22 or 24, and the strip may be crimped between each electrode, as at 25. In Fig. 5 the electrodes 28 are retained in the support 26 with a minimum of contact. The metal support may be earthed so that it acts as an electrostatic shield. It may be mounted inside a glass envelope by cantilever springs, or in a crimped portion of a metal envelope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB889954A GB775277A (en) | 1954-03-26 | 1954-03-26 | Improvements in or relating to thermionic valves or electron tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB889954A GB775277A (en) | 1954-03-26 | 1954-03-26 | Improvements in or relating to thermionic valves or electron tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB775277A true GB775277A (en) | 1957-05-22 |
Family
ID=9861445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB889954A Expired GB775277A (en) | 1954-03-26 | 1954-03-26 | Improvements in or relating to thermionic valves or electron tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB775277A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1134166B (en) * | 1959-03-25 | 1962-08-02 | Ass Elect Ind | Attachment of the holding rods of the electrodes of an electron tube lying in one plane |
-
1954
- 1954-03-26 GB GB889954A patent/GB775277A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1134166B (en) * | 1959-03-25 | 1962-08-02 | Ass Elect Ind | Attachment of the holding rods of the electrodes of an electron tube lying in one plane |
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