GB389512A - Luminous electric discharge tube - Google Patents
Luminous electric discharge tubeInfo
- Publication number
- GB389512A GB389512A GB17906/31A GB1790631A GB389512A GB 389512 A GB389512 A GB 389512A GB 17906/31 A GB17906/31 A GB 17906/31A GB 1790631 A GB1790631 A GB 1790631A GB 389512 A GB389512 A GB 389512A
- Authority
- GB
- United Kingdom
- Prior art keywords
- path
- conductor
- tube
- lamp
- electrodes
- 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
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
Landscapes
- Gas-Filled Discharge Tubes (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
389,512. Discharge apparatus. RAINBOW LIGHT, Inc., 21, 44th Road, Long Island City, New York, U.S.A.-(Assignees of Machlett, R. R. ; 25, Dorchester Road, Scarsdale, New York, U.S.A.) June 20, 1931, No. 17906. Convention date, June 26, 1930. [Class 39 (i).] A discharge lamp which can also be used as. a rectifier, oscillator, amplifier, &c. has two alternative paths for the discharge, one path having a low starting potential and a rising voltage characteristic. the other having a high starting potential and a falling voltage characteristic. The lamp can thus be started on a low voltage supply, the initial current flowing along the former path. The lamp is so constructed that the transference of the current from the first path to the second takes place automatically. In the lamp shown in the Figure the electrodes 11 are situated at the ends of the tube 10, the path between the electrodes constituting the path of high starting potential. A conductor 14 is arranged along the axis of the tube but is insulated from both electrodes by supports 15, the conductor and the gaps G between its ends and the electrodes forming the path of low potential. When current is supplied to the lamp the discharge first passes through the gaps G and along the conductor 14. The voltage characteristic of this path rises until the discharge finally takes the path between the electrodes 11. The tube contains neon, argon, mercury vapour &c. and the conductor 14 is in the form of a fine wire of iron or other material that does not sputter readily. A shield may be mounted between the conductor 14 and the wall of the tube to prevent sputtered material from being deposited on the tube, openings being provided in the shield for the passage of ions. In long tubes the single conductor 14 may be replaced by a number of conductors placed end to end with gaps between. The tube when used as a lamp may be used in the electrical transmission of pictures and the photographic recording of sound.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US464077A US1961617A (en) | 1930-06-26 | 1930-06-26 | Luminous discharge tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB389512A true GB389512A (en) | 1933-03-20 |
Family
ID=23842458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17906/31A Expired GB389512A (en) | 1930-06-26 | 1931-06-20 | Luminous electric discharge tube |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1961617A (en) |
| BE (1) | BE380856A (en) |
| FR (1) | FR719038A (en) |
| GB (1) | GB389512A (en) |
-
0
- BE BE380856D patent/BE380856A/xx unknown
-
1930
- 1930-06-26 US US464077A patent/US1961617A/en not_active Expired - Lifetime
-
1931
- 1931-06-20 GB GB17906/31A patent/GB389512A/en not_active Expired
- 1931-06-23 FR FR719038D patent/FR719038A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1961617A (en) | 1934-06-05 |
| FR719038A (en) | 1932-02-01 |
| BE380856A (en) |
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