GB523485A - Improvements in or relating to electrical arc discharge tubes - Google Patents
Improvements in or relating to electrical arc discharge tubesInfo
- Publication number
- GB523485A GB523485A GB551/39A GB55139A GB523485A GB 523485 A GB523485 A GB 523485A GB 551/39 A GB551/39 A GB 551/39A GB 55139 A GB55139 A GB 55139A GB 523485 A GB523485 A GB 523485A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge
- current
- anode
- perforated
- anodes
- 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
- 238000010891 electric arc Methods 0.000 title 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
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
- H01J13/50—Tubes having a single main anode
-
- 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
- H01J2893/0088—Tubes with at least a solid principal cathode and solid anodes
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
523,485. Metal-vapour apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 6, 1939, No. 551. Convention date, Jan. 7, 1938. Drawings to Specification. [Class 39 (i)] An apparatus with a mercury cathode is provided with two anodes, one of which is perforated, the discharge to the second anode passing through the perforation ; it is stated that while a discharge is passing to the perforated anode the discharge to the second anode maintains the same voltage for different current strengths up to a certain current value, after which the current remains substantially constant for all voltages, but becomes intermittent above a certain voltage ; if the discharge to the perforated anode is then stopped the discharge to the second anode is permanently interrupted. If a coil is arranged to produce a field parallel to the discharge the limiting value of the current is lowered and a sufficiently strong field will break the current. The effect of the coil is enhanced if a deflector, preferably of magnetic material, is placed between the cathode and the opening in the perforated anode. Two coils may be employed in opposition so that if the current in either is interrupted the current in the other stops the discharge, and applications of this arrangement to overload interrupters are described. The apparatus may contain a succession of perforated anodes, the discharge to each being regulated by those to the previous ones. Several constructions are described, including arrangements of two non-perforated anodes for use as a full-wave rectifier. Specifications 404,455 and 440,636 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US523485XA | 1938-01-07 | 1938-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB523485A true GB523485A (en) | 1940-07-16 |
Family
ID=21977027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB551/39A Expired GB523485A (en) | 1938-01-07 | 1939-01-06 | Improvements in or relating to electrical arc discharge tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB523485A (en) |
-
1939
- 1939-01-06 GB GB551/39A patent/GB523485A/en not_active Expired
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