GB201088A - Improvements in and relating to thermionic valves - Google Patents
Improvements in and relating to thermionic valvesInfo
- Publication number
- GB201088A GB201088A GB3163422A GB3163422A GB201088A GB 201088 A GB201088 A GB 201088A GB 3163422 A GB3163422 A GB 3163422A GB 3163422 A GB3163422 A GB 3163422A GB 201088 A GB201088 A GB 201088A
- Authority
- GB
- United Kingdom
- Prior art keywords
- socket
- resistance
- coils
- around
- ring
- 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
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/135—Circuit arrangements therefor, e.g. for temperature control
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Abstract
201,088. Morris, C. V. Nov. 20, 1922. Vacuum tubes. - A valve with plug and socket connections 'has one or more resistance coils arranged concentrically around the socket and means for varying the amount of resistance in series with the filament. In one arrangement, Fig. 1, a resistance coil b is wound around a flat insulating core c which is secured by screws c<1> around the insulating portion of the socket a. One end of the resistance is connected with the positive terminal of the filament. A spring contact f, engaging with the coil, is mounted on a contact plate e fixed to an insulating ring d which may be rotated around the socket. A spring contact g on the socket and connected with a battery engages with the plate e. In another arrangement, Fig. 3, two coils a<1>, a<2> in series are housed in a ring d having a flange d<1> to separate the coils, and provided with ventilation holes d<2>. Two spring contacts f<1>, g<1>, of which one f<1> is connected with the filament and the other g<1> with the battery, are mounted on the socket and engage with the coils, the adjustment of resistance being effected by rotating the ring around the socket a. Rotation in the wrong direction at starting is prevented by a lug on the ring engaging with a stop on the base h.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3163422A GB201088A (en) | 1922-11-20 | 1922-11-20 | Improvements in and relating to thermionic valves |
| FR561533D FR561533A (en) | 1922-11-20 | 1923-01-29 | Improvements to thermionic valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3163422A GB201088A (en) | 1922-11-20 | 1922-11-20 | Improvements in and relating to thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB201088A true GB201088A (en) | 1923-07-26 |
Family
ID=10326090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3163422A Expired GB201088A (en) | 1922-11-20 | 1922-11-20 | Improvements in and relating to thermionic valves |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR561533A (en) |
| GB (1) | GB201088A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3518602A (en) * | 1968-05-29 | 1970-06-30 | Joseph B Richey | Lamp dimmer |
-
1922
- 1922-11-20 GB GB3163422A patent/GB201088A/en not_active Expired
-
1923
- 1923-01-29 FR FR561533D patent/FR561533A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3518602A (en) * | 1968-05-29 | 1970-06-30 | Joseph B Richey | Lamp dimmer |
Also Published As
| Publication number | Publication date |
|---|---|
| FR561533A (en) | 1923-10-23 |
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