GB567683A - Improvements in or relating to electric discharge devices - Google Patents

Improvements in or relating to electric discharge devices

Info

Publication number
GB567683A
GB567683A GB9414/43A GB941443A GB567683A GB 567683 A GB567683 A GB 567683A GB 9414/43 A GB9414/43 A GB 9414/43A GB 941443 A GB941443 A GB 941443A GB 567683 A GB567683 A GB 567683A
Authority
GB
United Kingdom
Prior art keywords
mercury
electric discharge
june
projection
level
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
GB9414/43A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB567683A publication Critical patent/GB567683A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
    • H01J13/02—Details
    • H01J13/04—Main electrodes; Auxiliary anodes
    • H01J13/06—Cathodes
    • H01J13/10—Containers for the liquid pool; Arrangements or mounting thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0072—Disassembly or repair of discharge tubes
    • H01J2893/0073—Discharge tubes with liquid poolcathodes; constructional details
    • H01J2893/0074—Cathodic cups; Screens; Reflectors; Filters; Windows; Protection against mercury deposition; Returning condensed electrode material to the cathodic cup; Liquid electrode level control
    • H01J2893/0075—Cathodic cups
    • H01J2893/0077—Cathodic cup construction; Cathodic spot control

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

567,683. Metal-vapour apparatus. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 11, 1943, No. 9414. Convention date, June 17, 1942. [Class 39 (i)] The bottom 11 .of the meta envelope 10 of a pool cathode electric discharge device form the container for the pool o mercury and is provided in tegrally with a stamped-up projection 24, preferably conical, which is used to in dicate the level of the poo surface. A tubulation 25 is welded or brazed to the top o: the projection to drain the mercury away to its requirec level and is then closed by pinching at 27. The envelope bottom may also be formed with a recess 23 to provide additional depth of mercury at the immersion ignition elec trode 18. The leads to the electrode 18 and anode 13 consist of rods 19, 14, taken through glass seals 20, 15 to metal caps 21, 16 and wires 22, 17.
GB9414/43A 1942-06-17 1943-06-11 Improvements in or relating to electric discharge devices Expired GB567683A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US567683XA 1942-06-17 1942-06-17

Publications (1)

Publication Number Publication Date
GB567683A true GB567683A (en) 1945-02-27

Family

ID=22006469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9414/43A Expired GB567683A (en) 1942-06-17 1943-06-11 Improvements in or relating to electric discharge devices

Country Status (1)

Country Link
GB (1) GB567683A (en)

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