GB395804A - Improvements relating to luminous gas discharge tubes - Google Patents
Improvements relating to luminous gas discharge tubesInfo
- Publication number
- GB395804A GB395804A GB606232A GB606232A GB395804A GB 395804 A GB395804 A GB 395804A GB 606232 A GB606232 A GB 606232A GB 606232 A GB606232 A GB 606232A GB 395804 A GB395804 A GB 395804A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- positive column
- electrodes
- cathode
- insulation
- 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
- H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
- H05B41/34—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp to provide a sequence of flashes
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
395,804. Discharge lamps. UNEON, Ltd. and SOUNDY, L. H., Vincent House, Vincent Square, London. Feb. 29, 1932, Nos. 6062 and 11753. [Class 39 (i).] Discharge lamps of flashing signs &c. are operated by intermittently short-circuiting the positive column whilst maintaining the flow of current near the cathode. In a neon lamp for direct current, an auxiliary electrode d, Fig. 1, near the cathode b is connected to the anode f through an intermittently closing switch s. The voltage interrupted by the switch s is that across the positive column and not the higher voltage across the electrodes b, f. The electrode d may be of metal gauze at the junction of the positive column and the Faraday dark space but may be nearer the cathode b either in the Faraday or Crookes dark spaces or in the negative glow. In an alternating current lamp, two auxiliary electrodes, one in front of each main electrode, are connected together through the switch s. To extinguish portions of the positive column in sequence, other gauze electrodes may be provided at points along the tube. The tube may be shielded from sight at its ends beyond the auxiliary electrodes. To improve the extinction of the positive column by reducing the escape of ions around the electrode d, this electrode may be circular and may extend near to the walls of the tube; for example, half-way between the circumference of the electrode b and the walls, or the electrodes may be arranged as shown in Fig. 4. The main electrode b is here hollow and is surrounded by insulation l such as steatite, dental plaster or porcelain to produce a discharge spreading from the aperture m. The electrode d is surrounded by insulation n and is carried by, and may be adjustable on, rods p moulded in the insulation l. The electrode b is of iron, aluminium or tungsten. The electrode d is of aluminium, nickel, iron, tungsten, or molybdenum and may be coated with electron emissive material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB606232A GB395804A (en) | 1932-02-29 | 1932-02-29 | Improvements relating to luminous gas discharge tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB606232A GB395804A (en) | 1932-02-29 | 1932-02-29 | Improvements relating to luminous gas discharge tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB395804A true GB395804A (en) | 1933-07-27 |
Family
ID=9807719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB606232A Expired GB395804A (en) | 1932-02-29 | 1932-02-29 | Improvements relating to luminous gas discharge tubes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB395804A (en) |
-
1932
- 1932-02-29 GB GB606232A patent/GB395804A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2769939A (en) | Read-out tube circuit | |
GB448706A (en) | Improvements in and relating to electric discharge lamps | |
GB346957A (en) | Improvements in and relating to electron discharge devices | |
GB381703A (en) | Improvements in or relating to electric luminous discharge tubes | |
GB395804A (en) | Improvements relating to luminous gas discharge tubes | |
GB1190424A (en) | Electron Discharge Device for Generation of Spectral Radiation | |
US1993811A (en) | Luminous gas discharge tube | |
US1971907A (en) | Gaseous discharge device | |
GB373270A (en) | Improvements in or relating to electric discharge lamps | |
GB389157A (en) | Improvements in and relating to electric discharge devices | |
GB659321A (en) | Heating device for tubular electric discharge lamps and the like | |
GB384857A (en) | Improvements in luminous electric discharge tubes | |
GB380895A (en) | Improvements in electric luminous discharge devices | |
GB338494A (en) | Improvements in or relating to vacuum tube lights and methods of operating the same | |
GB476066A (en) | Improvements in or relating to electric discharge devices | |
GB315094A (en) | Improvements in and relating to electric arc devices | |
GB407565A (en) | Improvements in luminous electric discharge lamps | |
GB434276A (en) | Improvements in and relating to electric discharge lamps | |
GB424211A (en) | Improvements in or relating to electric discharge lamps | |
GB389418A (en) | Improvements in luminous electric discharge lamps | |
GB420872A (en) | Improvements in or relating to vapour or gaseous electric discharge devices | |
GB467820A (en) | Improvements in or relating to electric discharge lamps | |
GB515615A (en) | Improvements in or relating to gas or vapour filled electric discharge tubes | |
GB442307A (en) | Improvements in and relating to electric lamps | |
GB533451A (en) | Improvements in and relating to electric discharge devices |