GB185415A - Improvements in or relating to discharge tubes with enclosed arc-discharge for alternating current - Google Patents
Improvements in or relating to discharge tubes with enclosed arc-discharge for alternating currentInfo
- Publication number
- GB185415A GB185415A GB23401/22A GB2340122A GB185415A GB 185415 A GB185415 A GB 185415A GB 23401/22 A GB23401/22 A GB 23401/22A GB 2340122 A GB2340122 A GB 2340122A GB 185415 A GB185415 A GB 185415A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- discharge
- alternating current
- relating
- during
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
- H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
- H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
- H05B41/232—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
185,415. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Aug. 30, 1921, [Convention date]. Arc lamps.-A gas-filled lamp with refractory electrodes for alternating current is so regulated by means of a suitably proportioned series resistance, choking coil or condenser that each electrode during the time it is working as an anode reaches such a high temperature that during the following period its temperature does not fall below the "disintegration'temperature." With tungsten electrodes the temperature should remain between the limit 2800‹ and 3000‹ absolute during working. A lamp for use on a circuit of 50 periods has small spherical tungsten electrodes 1 mm. apart, and a filling of neon or argon at a pressure of 50 cms. of mercury.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL185415X | 1921-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB185415A true GB185415A (en) | 1923-10-11 |
Family
ID=19777567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23401/22A Expired GB185415A (en) | 1921-08-30 | 1922-08-29 | Improvements in or relating to discharge tubes with enclosed arc-discharge for alternating current |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB185415A (en) |
-
1922
- 1922-08-29 GB GB23401/22A patent/GB185415A/en not_active Expired
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