GB548392A - Gas-filled electric discharge device - Google Patents
Gas-filled electric discharge deviceInfo
- Publication number
- GB548392A GB548392A GB5051/41A GB505141A GB548392A GB 548392 A GB548392 A GB 548392A GB 5051/41 A GB5051/41 A GB 5051/41A GB 505141 A GB505141 A GB 505141A GB 548392 A GB548392 A GB 548392A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- tube
- cathode
- gap
- activated
- 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
- H01J17/38—Cold-cathode tubes
- H01J17/40—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes
Landscapes
- Gas-Filled Discharge Tubes (AREA)
- Discharge Lamp (AREA)
Abstract
548,392. Discharge tubes. STANDARD TELEPHONES & CABLES, Ltd. April 18, 1941, No. 5051. Convention date, April 24, 1940. [Class 39 (i)] A discharge tube for use in selective ringing systems comprises (i) a main discharge gap between a plane activated cathode 22, 23 and an anode 28 of small area compared with the cathode and (ii) an auxiliary breakdown gap formed between two electrodes 30, 31 spaced apart and insulated from the anode ; these electrodes 30, 31 are preferably activated and provide a small gap. The cathode as shown is in two parts connected electrically but it may be a single disc ; the wire anode is insulated by a glass tube 29. The tube has a filling of 95 per cent neon and 5 per cent argon at a pressure of 50 mm. The Specification as open to inspection under Sect. 91 also describes a tube wherein the breakdown gap is formed between the main anode and an activated wire ring placed near the anodes. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US331270A US2273958A (en) | 1940-04-24 | 1940-04-24 | Gas filled discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB548392A true GB548392A (en) | 1942-10-08 |
Family
ID=23293273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5051/41A Expired GB548392A (en) | 1940-04-24 | 1941-04-18 | Gas-filled electric discharge device |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2273958A (en) |
| GB (1) | GB548392A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2444427A (en) * | 1943-03-26 | 1948-07-06 | Standard Telephones Cables Ltd | Gas filled tube |
| US2462142A (en) * | 1947-06-14 | 1949-02-22 | Raytheon Mfg Co | Cold-cathode gas tube with starting electrode |
| GB721973A (en) * | 1952-07-29 | 1955-01-19 | Hivac Ltd | Improvements in or relating to cold cathode gaseous discharge tubes |
| DE963010C (en) * | 1954-12-24 | 1957-05-02 | Siemens Ag | Gas or vapor filled as switching tubes or the like working electrical discharge vessel |
| US3005925A (en) * | 1958-11-14 | 1961-10-24 | Tung Sol Electric Inc | Self-indicating thyratron |
| US4978892A (en) * | 1988-12-27 | 1990-12-18 | Polaroid Corporation | Variable color-output strobe |
-
1940
- 1940-04-24 US US331270A patent/US2273958A/en not_active Expired - Lifetime
-
1941
- 1941-04-18 GB GB5051/41A patent/GB548392A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2273958A (en) | 1942-02-24 |
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