GB167222A - Improvements in and relating to mercury vapor arc devices - Google Patents
Improvements in and relating to mercury vapor arc devicesInfo
- Publication number
- GB167222A GB167222A GB1124320A GB1124320A GB167222A GB 167222 A GB167222 A GB 167222A GB 1124320 A GB1124320 A GB 1124320A GB 1124320 A GB1124320 A GB 1124320A GB 167222 A GB167222 A GB 167222A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anodes
- cathode
- auxiliary
- anode
- main
- 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
-
- 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
Landscapes
- Physical Vapour Deposition (AREA)
Abstract
167,222. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). April 22, 1920. Vapour apparatus, arrangements of.-In a rectifier having a mercury cathode covered with a finely-divided coating of highly refractory material, the arc may be started and maintained at different values of the impressed potential wave by means of an auxiliary anode, so as to produce rectified current impulses of different shapes. The auxiliary anode 4, Fig. 1, is connected with the cathode 2 through a condenser 7 and the secondary winding of a step-up transformer, the primary of which is connected across the supply mains L with the main anode 3, and through a battery 6 representing the load with the cathode. Curves are shown to illustrate the variations produced in the rectified impulses by including capacity, inductance or resistance in the circuit of the auxiliary anode. In the arrangement shown in Fig. 7, the starting potential is applied between the auxiliary anode 20 and the main anode 19 by means of a transformer T. The full-wave rectifier shown in Fig. 8 comprises two main anodes 27, 28 connected across an autotransformer T<1>, and an auxiliary anode 29 in series with a condenser or resistance 32 and the secondary of a step-up transformer T<2>, which may be cut out after starting. The battery 31, representing the load, is connected between the cathode 26 and the auto-transformer. In the arrangement shown in Fig. 9 for controlling a motor A, the potentials applied between the main anodes 54, 55 and auxiliary anodes 56, 57 of two rectifiers 35, 36 are controlled by thermionic valves 39, 40 and a tachometer driven by the motor. The anodes 47, 48 of the valves are connected with the main anodes 57, 58, and the valve cathodes 43, 44 are connected with the auxiliary anodes 56, 57 through condensers 41, 42 and the secondary windings of transformers T<4>, T<5>, the primaries of which are connected across supply mains through a resistance. The control grids 49, 50 are connected through a battery 51 and the armature of the tachometer 52 with a resistance 53 between the cathode-heating batteries 45, 46. The tachometer is driven by the motor so that the potential on the grids, and consequently the potential supplied by the valves to the anodes of the rectifiers, vary with the speed of the motor, with the result that the speed is maintained constant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1124320A GB167222A (en) | 1920-04-22 | 1920-04-22 | Improvements in and relating to mercury vapor arc devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1124320A GB167222A (en) | 1920-04-22 | 1920-04-22 | Improvements in and relating to mercury vapor arc devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB167222A true GB167222A (en) | 1921-07-22 |
Family
ID=9982625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1124320A Expired GB167222A (en) | 1920-04-22 | 1920-04-22 | Improvements in and relating to mercury vapor arc devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB167222A (en) |
-
1920
- 1920-04-22 GB GB1124320A patent/GB167222A/en not_active Expired
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