GB329405A - Improvements in or relating to mercury vapour discharge devices - Google Patents
Improvements in or relating to mercury vapour discharge devicesInfo
- Publication number
- GB329405A GB329405A GB621929A GB621929A GB329405A GB 329405 A GB329405 A GB 329405A GB 621929 A GB621929 A GB 621929A GB 621929 A GB621929 A GB 621929A GB 329405 A GB329405 A GB 329405A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mercury
- arcs
- traverses
- transmitting
- lead
- 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
-
- 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
- H01J2893/0095—Tubes with exclusively liquid main electrodes
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
329,405. Gramophone Co., Ltd., and Browne, C. O. Feb. 25, 1929. Low-pressure metallic-vapour apparatus. - Apparatus for transmitting or recording electric oscillations by the aid of light comprises a tube containing two outer electrodes and a mercury column electrode between the two outer electrodes from which arc discharges take place to opposite sides of the common mercury electrode. As shown, a horizontal quartz tube 1, preferably restricted at 9, 10, is turned up at the ends 2, 3, in which lead-in wires 4, 5 are sealed, and also at the centre, and is filled with mercury, the central upstanding part receiving a plug, of cotton wool 7 through which the lead-in wire 8 passes. The oscillating current, which may be of acoustic frequency, is impressed through a transformer 11 and traverses the arcs in series through stabilizing resistances 12, 13, and steady current from a battery 14 traverses the arcs in parallel. Heating coils 15, 16 vaporize some of the mercury to assist in striking the arcs. Either arc may be used for recording or transmitting, or two records or transmissions may be effected simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB621929A GB329405A (en) | 1929-02-25 | 1929-02-25 | Improvements in or relating to mercury vapour discharge devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB621929A GB329405A (en) | 1929-02-25 | 1929-02-25 | Improvements in or relating to mercury vapour discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB329405A true GB329405A (en) | 1930-05-22 |
Family
ID=9810570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB621929A Expired GB329405A (en) | 1929-02-25 | 1929-02-25 | Improvements in or relating to mercury vapour discharge devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB329405A (en) |
-
1929
- 1929-02-25 GB GB621929A patent/GB329405A/en not_active Expired
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