GB406620A - Improvements in electric discharge tubes - Google Patents
Improvements in electric discharge tubesInfo
- Publication number
- GB406620A GB406620A GB29703/33A GB2970333A GB406620A GB 406620 A GB406620 A GB 406620A GB 29703/33 A GB29703/33 A GB 29703/33A GB 2970333 A GB2970333 A GB 2970333A GB 406620 A GB406620 A GB 406620A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- free ends
- wire
- oct
- enclosed
- 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
- H01J61/545—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode inside the vessel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F1/00—Platen presses, i.e. presses in which printing is effected by at least one essentially-flat pressure-applying member co-operating with a flat type-bed
- B41F1/26—Details
- B41F1/28—Sheet-conveying, -aligning or -clamping devices
-
- 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
- H01J61/526—Heating or cooling particular parts of the lamp heating or cooling of electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- X-Ray Techniques (AREA)
- Solid Thermionic Cathode (AREA)
- Physical Vapour Deposition (AREA)
Abstract
406,620. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent - Treuhand - Ges. f³r Elektrische Gl³hlampen ; 11, Ehrenbergstrasse, Berlin.) Oct. 26, 1933, No. 29703. Convention date, Oct. 28, 1932. [Class 39 (i).] Means to facilitate starting in electric discharge tubes with thermionic electrodes comprise one or more wires extending along the interior of the tube, enclosed for the greater part of their length in insulating sheaths by which they are supported, and having free ends which serve as auxiliary electrodes or as supports for conductors forming such electrodes. In the example shown a helical wire 11 is enclosed by a thin glass sheath 12 which is held in the tube by semi-circular clips 13. The free ends 14, 14<1> of the spiral project from the sheath and act as auxiliary electrodes. When the supply is switched on, glow discharges occur between the thermionic electrodes 6, 6<1> and the ends 14, 141 of the wire, thus ionizing the gas and initiating the main discharge. The electrodes 7, 7<1> are of a sintered mixture of tungsten, barium oxide and strontium oxide. In a modification, applicable to very long tubes, the wire is broken in the middle and the free ends thus formed project out of the sheaths and form two further auxiliary electrodes. Specification 405,514 is referred to.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE405514X | 1932-06-18 | ||
| DEP66311D DE588894C (en) | 1932-06-18 | 1932-10-29 | Electric light tubes with electrodes attached to the ends, in particular glow electrodes, and a wire accommodated inside the tube to facilitate ignition |
| DE433437X | 1934-04-07 | ||
| DEP69579D DE622897C (en) | 1932-06-18 | 1934-06-16 | Electric light tubes with electrodes attached to the ends, in particular glow electrodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB406620A true GB406620A (en) | 1934-03-01 |
Family
ID=40852445
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15724/33A Expired GB405514A (en) | 1932-06-18 | 1933-05-31 | Improvements in luminous electric discharge tubes |
| GB29703/33A Expired GB406620A (en) | 1932-06-18 | 1933-10-26 | Improvements in electric discharge tubes |
| GB10087/35A Expired GB433437A (en) | 1932-06-18 | 1935-04-01 | Improvements in electric discharge tubes |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15724/33A Expired GB405514A (en) | 1932-06-18 | 1933-05-31 | Improvements in luminous electric discharge tubes |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10087/35A Expired GB433437A (en) | 1932-06-18 | 1935-04-01 | Improvements in electric discharge tubes |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US1935702A (en) |
| AT (2) | AT136749B (en) |
| CH (1) | CH169496A (en) |
| DE (2) | DE588894C (en) |
| DK (1) | DK48842C (en) |
| FR (2) | FR756151A (en) |
| GB (3) | GB405514A (en) |
| NL (2) | NL36151C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2444397A (en) * | 1945-03-27 | 1948-06-29 | Sylvania Electric Prod | Electric discharge lamp |
| US2473413A (en) * | 1945-05-17 | 1949-06-14 | Cortese Ralph | Electrode |
| US2930934A (en) * | 1958-02-12 | 1960-03-29 | Westinghouse Electric Corp | Discharge lamp |
| FR2295563A2 (en) * | 1974-12-16 | 1976-07-16 | Central Eclairage Lab | HIGH PRESSURE SODIUM VAPOR DISCHARGE LAMP |
-
1932
- 1932-10-29 DE DEP66311D patent/DE588894C/en not_active Expired
-
1933
- 1933-05-24 NL NL65415A patent/NL36151C/xx active
- 1933-05-26 CH CH169496D patent/CH169496A/en unknown
- 1933-05-26 AT AT136749D patent/AT136749B/en active
- 1933-05-26 DK DK48842D patent/DK48842C/en active
- 1933-05-26 FR FR756151D patent/FR756151A/en not_active Expired
- 1933-05-31 GB GB15724/33A patent/GB405514A/en not_active Expired
- 1933-06-06 US US674519D patent/US1935702A/en not_active Expired - Lifetime
- 1933-10-26 GB GB29703/33A patent/GB406620A/en not_active Expired
-
1934
- 1934-06-16 DE DEP69579D patent/DE622897C/en not_active Expired
-
1935
- 1935-04-01 GB GB10087/35A patent/GB433437A/en not_active Expired
- 1935-04-02 US US14356A patent/US2085561A/en not_active Expired - Lifetime
- 1935-05-27 NL NL73703A patent/NL40579C/xx active
- 1935-05-28 FR FR46267D patent/FR46267E/en not_active Expired
- 1935-05-28 AT AT145154D patent/AT145154B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DE588894C (en) | 1933-11-29 |
| FR46267E (en) | 1936-04-08 |
| NL36151C (en) | 1935-08-15 |
| DE622897C (en) | 1935-12-09 |
| GB405514A (en) | 1934-02-08 |
| AT145154B (en) | 1936-04-10 |
| FR756151A (en) | 1933-12-05 |
| AT136749B (en) | 1934-03-10 |
| US1935702A (en) | 1933-11-21 |
| NL40579C (en) | 1937-04-15 |
| DK48842C (en) | 1934-06-04 |
| CH169496A (en) | 1934-05-31 |
| GB433437A (en) | 1935-08-14 |
| US2085561A (en) | 1937-06-29 |
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