GB386111A - Improvements relating to gas-filled electron discharge tubes - Google Patents
Improvements relating to gas-filled electron discharge tubesInfo
- Publication number
- GB386111A GB386111A GB35918/31A GB3591831A GB386111A GB 386111 A GB386111 A GB 386111A GB 35918/31 A GB35918/31 A GB 35918/31A GB 3591831 A GB3591831 A GB 3591831A GB 386111 A GB386111 A GB 386111A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- chamber
- anode chamber
- tubes
- tube
- 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
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
- H01J5/06—Vessels or containers specially adapted for operation at high tension, e.g. by improved potential distribution over surface of vessel
-
- 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
- H01J17/52—Thermionic-cathode tubes with one cathode and one anode
- H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
- H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0048—Tubes with a main cathode
- H01J2893/0051—Anode assemblies; screens for influencing the discharge
- H01J2893/0054—Cooling means
Landscapes
- Lasers (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
386,111. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Dec. 29, 1931, No. 35918. Convention date, April 20. Addition to 386,063. [Class 39 (i).] In. electron - discharge tubes of the type described and claimed in the parent Specification each anode chamber is provided with a heating or heatretaining device. For this purpose a heating coil may be arranged around the anode chamber or the latter may be covered with asbestos or provided with a double wall with the intervening space e exhausted. Alternatively, as shown in Fig. 1, the anode chamber 10 is placed directly over the cathode chamber 1 and is heated thereby. The cathode comprises loosely coiled wire gauze 4 mounted in a heating coil 3a, the coil and the inner and outer surfaces of the gauze being coated with a substance providing high electron emission. The tube 6 is provided with a flared extension 17 directed towards the cathode and one of the leads of the coil 3a carries a screen 18 arranged to attract a large proportion of the ions coming from the tube 6. The tube 8 connecting the chambers 1, 7 is formed with a helical portion 14 protected by cylindrical glass sleeves 15, 16. Fig. 2 shows a modification in which the anode chamber 10 is sunk into a recess 12 in the top of the cathode chamber 1 and is covered by a heat-retaining hood 13, e.g. of glass. Radiation of heat from the cathode is reduced by a screen 19 and ignition is improved by providing the tubes 6, 9 with metal points 20, 21 within the chamber 7. The tubes 6, 9 may be used as control electrodes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE386063X | 1931-01-26 | ||
| DEN31939D DE648516C (en) | 1931-01-26 | 1931-04-21 | Rectifier tubes with arc discharge between one or more anodes and a glow cathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB386111A true GB386111A (en) | 1933-01-12 |
Family
ID=25875991
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29229/31A Expired GB386063A (en) | 1931-01-26 | 1931-10-21 | Improvements relating to gas-filled electron discharge tubes |
| GB35918/31A Expired GB386111A (en) | 1931-01-26 | 1931-12-29 | Improvements relating to gas-filled electron discharge tubes |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29229/31A Expired GB386063A (en) | 1931-01-26 | 1931-10-21 | Improvements relating to gas-filled electron discharge tubes |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US2080628A (en) |
| DE (1) | DE648516C (en) |
| FR (2) | FR729219A (en) |
| GB (2) | GB386063A (en) |
| NL (2) | NL42082C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1263766A (en) * | 1969-09-16 | 1972-02-16 | English Electric Valve Co Ltd | Improvements in or relating to electron discharge tubes |
-
0
- NL NL36709D patent/NL36709C/xx active
- NL NL42082D patent/NL42082C/xx active
-
1931
- 1931-04-21 DE DEN31939D patent/DE648516C/en not_active Expired
- 1931-10-21 GB GB29229/31A patent/GB386063A/en not_active Expired
- 1931-12-23 US US582825A patent/US2080628A/en not_active Expired - Lifetime
- 1931-12-29 GB GB35918/31A patent/GB386111A/en not_active Expired
-
1932
- 1932-01-04 FR FR729219D patent/FR729219A/en not_active Expired
- 1932-04-01 US US602598A patent/US2011904A/en not_active Expired - Lifetime
- 1932-04-04 FR FR41744D patent/FR41744E/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR729219A (en) | 1932-07-20 |
| FR41744E (en) | 1933-03-29 |
| GB386063A (en) | 1933-01-12 |
| DE648516C (en) | 1937-08-02 |
| US2080628A (en) | 1937-05-18 |
| US2011904A (en) | 1935-08-20 |
| NL36709C (en) | |
| NL42082C (en) |
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