GB455591A - Improvements in and relating to electric discharge tubes - Google Patents
Improvements in and relating to electric discharge tubesInfo
- Publication number
- GB455591A GB455591A GB12582/36A GB1258236A GB455591A GB 455591 A GB455591 A GB 455591A GB 12582/36 A GB12582/36 A GB 12582/36A GB 1258236 A GB1258236 A GB 1258236A GB 455591 A GB455591 A GB 455591A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- vanes
- envelope
- conductivity
- low
- 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
- 239000000463 material Substances 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 abstract 1
- 229910052793 cadmium Inorganic materials 0.000 abstract 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 229910052733 gallium Inorganic materials 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/22—Means for obtaining or maintaining the desired pressure within the tube
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamp (AREA)
Abstract
455,591. Discharge apparatus. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. May 4, 1936, No. 12582. Convention date, May 4, 1935. [Class 39 (i)] In mercury, gallium, cadmium, &c. vapour discharge tubes, the reserve of the vapourforming medium is contained in a chamber 17, Fig. 2, of low heat conductivity projecting outwardly from the envelope and having mounted thereon a heat-radiating structure 14 constructed, for example, with vanes 19. The chamber 17 is formed by pinching the end of a tube 15 the conductivity of which is made low by reason of its small cross-section or by using a material of low conductivity or by incorporating a heat insulating barrier in its structure. The radiating structure consists of a copper &c. cylinder 18 and a plurality of channel members 19 forming the vanes. Thermal contact with the chamber is maintained by a mass of fusible material 20 such as solder. Alternatively the vanes may be constructed by pairs of metal sheets formed so as to envelope the chamber. In the application described, the discharge tube has a metal envelope 1, Fig. 1, forming the anode. The cathode 3 is a pleated metal ribbon of nickel &c. coated with an emissive material such as barium oxide. The lead-in connections are as described in Specification 448,727, [Group XI].
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19867A US2091915A (en) | 1935-05-04 | 1935-05-04 | Electric discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB455591A true GB455591A (en) | 1936-10-23 |
Family
ID=21795464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12582/36A Expired GB455591A (en) | 1935-05-04 | 1936-05-04 | Improvements in and relating to electric discharge tubes |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2091915A (en) |
| FR (1) | FR47312E (en) |
| GB (1) | GB455591A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2499197A (en) * | 1948-11-24 | 1950-02-28 | Gen Electric | Metal envelope electric discharge device |
| US6528953B1 (en) * | 2001-09-25 | 2003-03-04 | Osram Sylvania Inc. | Amalgam retainer |
-
1935
- 1935-05-04 US US19867A patent/US2091915A/en not_active Expired - Lifetime
-
1936
- 1936-05-04 GB GB12582/36A patent/GB455591A/en not_active Expired
- 1936-05-04 FR FR47312D patent/FR47312E/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR47312E (en) | 1937-03-16 |
| US2091915A (en) | 1937-08-31 |
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