GB473536A - Improvements in or relating to devices comprising ionic discharge tubes - Google Patents
Improvements in or relating to devices comprising ionic discharge tubesInfo
- Publication number
- GB473536A GB473536A GB17871/37A GB1787137A GB473536A GB 473536 A GB473536 A GB 473536A GB 17871/37 A GB17871/37 A GB 17871/37A GB 1787137 A GB1787137 A GB 1787137A GB 473536 A GB473536 A GB 473536A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pmax
- emission
- cathode
- june
- filling
- 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
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/50—Thermionic-cathode tubes
- H01J17/58—Thermionic-cathode tubes with more than one cathode or anode
Landscapes
- Discharge Lamp (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
473,536. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 26, 1937, No. 17871. Convention date, June 29, 1936. Drawings to Specification. [Class 39 (i)] A device, for example for rectifying or switching, comprises an incandescent cathode arc discharge tube, pressure p of the filling of which lies between pmax. and 1À25 pmax. which values are, for argon, 0À02 mm. and 0À0008 mm. and for other gases or vapours values giving equivalent mean free paths, and the cathode of which is of wire, has a peak value of emission of 0À08+0À4p/pmax. amps. per sq. cm. of active cathode surface, and is so constructed that the distance between adjacent parts or turns is at least about double that distance at which the entire periphery takes part in the emission. The actual spacing for a helical cathode, may be at least equal to the wire diameter. The peak value of emission may be double the minimum value stated. The filling may comprise argon at 4.10<-3> mm. 6.10<-3> mm. 18.10<-3> mm. 20.10<-3> mm. or 60.10<-3> mm. or helium at 100.10<-3> mm. or neon at 70.10<-3> mm., or krypton at 12.10<-3> mm. or xenon at 10.10<-3> mm. or mercury at 8.10<-3> mm. or mixtures. Dimensions and characteristic curves of a typical rectifying arrangement are given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE473536X | 1936-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB473536A true GB473536A (en) | 1937-10-14 |
Family
ID=6541584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17871/37A Expired GB473536A (en) | 1936-06-29 | 1937-06-26 | Improvements in or relating to devices comprising ionic discharge tubes |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2170034A (en) |
| FR (1) | FR823639A (en) |
| GB (1) | GB473536A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2687471A (en) * | 1948-05-01 | 1954-08-24 | Western Union Telegraph Co | Concentrated arc discharge device |
| US3174107A (en) * | 1960-08-01 | 1965-03-16 | Clifford E Quackenbush | Control circuit cyclically energizing a load using raw a. c. as one of two supplies |
| US3522466A (en) * | 1968-07-29 | 1970-08-04 | Takeo Kamegaya | Electric discharge lamps having hot cathode |
-
1937
- 1937-06-19 US US149234A patent/US2170034A/en not_active Expired - Lifetime
- 1937-06-26 GB GB17871/37A patent/GB473536A/en not_active Expired
- 1937-06-28 FR FR823639D patent/FR823639A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR823639A (en) | 1938-01-24 |
| US2170034A (en) | 1939-08-22 |
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