GB653592A - Improvements in or relating to electric discharge tubes - Google Patents
Improvements in or relating to electric discharge tubesInfo
- Publication number
- GB653592A GB653592A GB27676/48A GB2767648A GB653592A GB 653592 A GB653592 A GB 653592A GB 27676/48 A GB27676/48 A GB 27676/48A GB 2767648 A GB2767648 A GB 2767648A GB 653592 A GB653592 A GB 653592A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tongues
- mica
- support
- strained
- oct
- 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
- H01J19/50—Spacing members extending to the envelope
- H01J19/52—Spacing members extending to the envelope without fixed connection between spacing member and envelope
-
- 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
- H01J2893/0005—Fixing of electrodes
- H01J2893/0009—Electrode system pressing against vessel wall
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
653,592. Thermionic valves. PHILIPS ELECTRICAL, Ltd. Oct. 25, 1948, No. 27676. Convention date, Oct. 28, 1947. [Class 39 (i)] The tongues 2 of a mica electrode-support 1 are bent down before insertion into the tube 3 so as to split the mica of these tongues into layers, so as to prevent the mica cracking along any of the lines I-I through the apertures for the electrodes. The support 1 is held between two dies with only the tongues projecting and a cylinder having an internal diameter equal to the minimum permissible tube diameter is forced down on to the tongues so as to bend them, Fig. 4 (not shown). The support may alternatively be square or rectangular, the corners of which are strained, or parts of the circumference of a mica disc may be strained to fit a rectangular or elliptic-section bulb.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL653592X | 1947-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB653592A true GB653592A (en) | 1951-05-16 |
Family
ID=19795157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27676/48A Expired GB653592A (en) | 1947-10-28 | 1948-10-25 | Improvements in or relating to electric discharge tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB653592A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3512033A (en) * | 1967-11-28 | 1970-05-12 | Raytheon Co | Gaseous discharge device |
-
1948
- 1948-10-25 GB GB27676/48A patent/GB653592A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3512033A (en) * | 1967-11-28 | 1970-05-12 | Raytheon Co | Gaseous discharge device |
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