GB346957A - Improvements in and relating to electron discharge devices - Google Patents

Improvements in and relating to electron discharge devices

Info

Publication number
GB346957A
GB346957A GB9097/30A GB909730A GB346957A GB 346957 A GB346957 A GB 346957A GB 9097/30 A GB9097/30 A GB 9097/30A GB 909730 A GB909730 A GB 909730A GB 346957 A GB346957 A GB 346957A
Authority
GB
United Kingdom
Prior art keywords
anode
tube
cathode
enclosure
march
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
Application number
GB9097/30A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB346957A publication Critical patent/GB346957A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/15—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using discharge tubes only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
    • 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
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers

Abstract

346,957. Discharge apparatus. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Hull, A. W.; 1435, Lowell Road, Schenectady, New York, U.S.A.) March 21, 1930, No. 9097. Convention date, March 23, 1929. [Class 39 (i).] An arc discharge tube is provided with a control electrode 4 which completely surrounds the discharge space between the anode 3 and cathode 2. The tube contains argon or mercury vapour. The anode may consist of a nickel cup, disc, rod, &c. and the cathode may comprise an enclosure 5 provided with vanes 6 which, together with an outer tube 11 are coated with barium carbonate or other electron-emitting substance. A heater is situated within the enclosure 5. The control electrode 4 may extend in both directions to enclose the anode and cathode and may form a part of the outer container or tube as shown in Fig. 2, in which the anode 3 consists of a graphite rod. Specifications 282,766 and 309,447, [both in Class 39 (i), Electric lamps, Arc &c.], are referred to.
GB9097/30A 1929-03-23 1930-03-21 Improvements in and relating to electron discharge devices Expired GB346957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US349436A US1874753A (en) 1929-03-23 1929-03-23 Controlled arc discharge apparatus

Publications (1)

Publication Number Publication Date
GB346957A true GB346957A (en) 1931-04-23

Family

ID=23372398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9097/30A Expired GB346957A (en) 1929-03-23 1930-03-21 Improvements in and relating to electron discharge devices

Country Status (4)

Country Link
US (1) US1874753A (en)
BE (1) BE368819A (en)
ES (1) ES116611A1 (en)
GB (1) GB346957A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5994850A (en) * 1995-09-08 1999-11-30 Eev Limited Switching arrangements wherein a cylindrical trigger electrode is arranged around a gap between an anode and cathode for establishing a discharge therebetween

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422819A (en) * 1944-08-15 1947-06-24 Eitel Mccullough Inc External anode electron tube
US2492665A (en) * 1945-03-29 1949-12-27 Sylvania Electric Prod Thyratron tube
US2594897A (en) * 1945-09-19 1952-04-29 Bell Telephone Labor Inc Cathode structure for electron discharge tubes
US2459997A (en) * 1947-05-24 1949-01-25 Electrons Inc Partially indirectly heated cathode structure for gas tubes
US2763806A (en) * 1950-11-24 1956-09-18 Hanovia Chemical & Mfg Co Vapor electric discharge device
US2841735A (en) * 1955-03-15 1958-07-01 Philips Corp Electron discharge tube
US2942136A (en) * 1955-08-11 1960-06-21 M O Valve Co Ltd Low pressure gas filled thermionic valve
US3075114A (en) * 1956-07-17 1963-01-22 Edgerton Germeshausen & Grier Gaseous-discharge device
US2937303A (en) * 1957-09-11 1960-05-17 Edgerton Germeshausen & Grier Electric discharge device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5994850A (en) * 1995-09-08 1999-11-30 Eev Limited Switching arrangements wherein a cylindrical trigger electrode is arranged around a gap between an anode and cathode for establishing a discharge therebetween

Also Published As

Publication number Publication date
BE368819A (en)
ES116611A1 (en) 1930-02-16
US1874753A (en) 1932-08-30

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