GB493520A - Improvements relating to electric discharge tubes - Google Patents
Improvements relating to electric discharge tubesInfo
- Publication number
- GB493520A GB493520A GB10187/37A GB1018737A GB493520A GB 493520 A GB493520 A GB 493520A GB 10187/37 A GB10187/37 A GB 10187/37A GB 1018737 A GB1018737 A GB 1018737A GB 493520 A GB493520 A GB 493520A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge
- tube
- embedded
- electric discharge
- improvements relating
- 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
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
- H01J61/523—Heating or cooling particular parts of the lamp
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE493520X | 1936-04-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB493520A true GB493520A (en) | 1938-10-10 |
Family
ID=6544573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10187/37A Expired GB493520A (en) | 1936-04-09 | 1937-04-09 | Improvements relating to electric discharge tubes |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR819968A (enrdf_load_stackoverflow) |
GB (1) | GB493520A (enrdf_load_stackoverflow) |
NL (1) | NL49847C (enrdf_load_stackoverflow) |
-
0
- NL NL49847D patent/NL49847C/xx active
-
1937
- 1937-03-30 FR FR819968D patent/FR819968A/fr not_active Expired
- 1937-04-09 GB GB10187/37A patent/GB493520A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL49847C (enrdf_load_stackoverflow) | |
FR819968A (fr) | 1937-10-29 |
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