GB528725A - Improvements in or relating to gas- or vapour-filled electric discharge devices - Google Patents
Improvements in or relating to gas- or vapour-filled electric discharge devicesInfo
- Publication number
- GB528725A GB528725A GB14383/39A GB1438339A GB528725A GB 528725 A GB528725 A GB 528725A GB 14383/39 A GB14383/39 A GB 14383/39A GB 1438339 A GB1438339 A GB 1438339A GB 528725 A GB528725 A GB 528725A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- discharge
- resistance
- inductance
- anode
- 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
- H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
- H01J13/02—Details
- H01J13/48—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
- H01J13/02—Details
- H01J13/20—Control electrodes, e.g. grid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
- H01J13/02—Details
- H01J13/34—Igniting arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/36—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0072—Disassembly or repair of discharge tubes
- H01J2893/0073—Discharge tubes with liquid poolcathodes; constructional details
- H01J2893/0074—Cathodic cups; Screens; Reflectors; Filters; Windows; Protection against mercury deposition; Returning condensed electrode material to the cathodic cup; Liquid electrode level control
- H01J2893/0087—Igniting means; Cathode spot maintaining or extinguishing means
Landscapes
- Plasma Technology (AREA)
- Lasers (AREA)
Abstract
528,725. Converting. PATENTVERWERTUNGS.-GES. HERMES. May 13, 1939, No. 14383. Convention date, May 14, 1938. [Class 38 (ii)] [Also in Group XL] In a gas or vapour filled electric discharge devices having liquid, e.g., mercury cathodes in which the instant of ignition is controlled by a control electrode within wide limits, an inductive impedance is connected in series with the cathode and the resultant voltage drop across this impedance is transmitted directly or indirectly to an auxiliary electrode in the neighbourhood of the cathode for preventing quenching of the discharge immediately following the ignition thereof. The discharge device shown in Fig. 1 comprises the vessel 1 with mercury cathode 2, anode 3, control electrode 7 and a series of electrodes 4 connected to a capacitator potential divider 5 for producing a desired potential distribution between the anode and cathode. The current supply source is shown at 12, load at 13, and resistances 6 for damping oscillations. The excitation anode 8 is connected through a resistance 9, battery 10 and inductance 11 in the cathode. In modifications the voltage surge occurring on initiation of the discharge .may be transmitted to a second auxiliary electrode in the neighbourhood of the cathode and connected in series with a resistance which may be adjusted relatively to the resistance 9, and the circuit of this second auxiliary electrode may be inductively coupled to the inductance 11 while the anode 8 is connected directly to the cathode. Fig. 4 shows an arrangement in which the auxiliary electrode is used to take over a part of the discharge surge on the initiation of the discharge, and consists of a mercury pool 17 connected through a resistance 18 to the end of the inductance 11. The resistance 18 is adjusted so that the discharge flowing to the exciter anode 8 is from the cathode. A suitably dimensioned resistance 21 may be connected in parallel with the inductance 11 to damp oscillations therein. To facilitate the change over of the discharge to the electrode 17, an ignition spot may be produced by an ignition pin dipping therein and functioning in dependence on the drop in voltage across the cathode inductance.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1938S0132103 DE694632C (en) | 1938-05-15 | 1938-05-15 | Switching arrangement for controllable gas or vapor-filled discharge vessels with liquid cathode |
DEP77278D DE725052C (en) | 1938-05-15 | 1938-05-15 | Electrical discharge vessel with a liquid cathode |
Publications (1)
Publication Number | Publication Date |
---|---|
GB528725A true GB528725A (en) | 1940-11-05 |
Family
ID=42199205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14383/39A Expired GB528725A (en) | 1938-05-15 | 1939-05-13 | Improvements in or relating to gas- or vapour-filled electric discharge devices |
Country Status (3)
Country | Link |
---|---|
DE (2) | DE694632C (en) |
FR (1) | FR854289A (en) |
GB (1) | GB528725A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE973732C (en) * | 1941-09-17 | 1960-05-25 | Brown Ag | Gas and / or vapor filled discharge vessel with externally fed intermediate electrodes |
BE515998A (en) * | 1951-12-03 | |||
DE1100169B (en) * | 1957-05-20 | 1961-02-23 | Basic Products Corp | Transformer device for starting and operating metal vapor discharge lamps without a starter |
CH382302A (en) * | 1959-05-26 | 1964-09-30 | Asea Ab | Voltage divider for intermediate electrodes in a high voltage ion valve |
DE1177746B (en) * | 1959-06-03 | 1964-09-10 | Asea Ab | Circuit arrangement for a high-voltage ion valve |
-
1938
- 1938-05-15 DE DE1938S0132103 patent/DE694632C/en not_active Expired
- 1938-05-15 DE DEP77278D patent/DE725052C/en not_active Expired
-
1939
- 1939-05-04 FR FR854289D patent/FR854289A/en not_active Expired
- 1939-05-13 GB GB14383/39A patent/GB528725A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR854289A (en) | 1940-04-09 |
DE694632C (en) | 1940-08-05 |
DE725052C (en) | 1942-09-12 |
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