GB620332A - Improvements in or relating to electric arc devices - Google Patents

Improvements in or relating to electric arc devices

Info

Publication number
GB620332A
GB620332A GB132/47A GB13247A GB620332A GB 620332 A GB620332 A GB 620332A GB 132/47 A GB132/47 A GB 132/47A GB 13247 A GB13247 A GB 13247A GB 620332 A GB620332 A GB 620332A
Authority
GB
United Kingdom
Prior art keywords
cathode
shield
glass
electric arc
mercury
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
GB132/47A
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 GB620332A publication Critical patent/GB620332A/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
    • H01J13/48—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
    • 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
    • H01J13/50—Tubes having a single main anode
    • 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
    • H01J2893/0088—Tubes with at least a solid principal cathode and solid anodes

Landscapes

  • Spark Plugs (AREA)

Abstract

620,332. Metal-vapour discharge apparatus. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Jan. 2, 1947, No. 132. Convention date, Jan. 27, 1942. [Class 39 (i)] The ignitor electrode projecting through the liquid cathode pool of an electric arc device carries a shield of insulating material which prevents sputtering of liquid above the level of the cathode cup. Cathode and anode cups 10, 11 of nickelcobalt-iron alloy are sealed to a glass cylinder 12 and a starter electrode 17 of tungsten coated with glass 19, 20 is sealed in neck 14 and projects through the cathode material, e.g. mercury. A dome-shaped cap or shield 21 of glass is carried by the igniter 17 leaving a gap 22 between the rim of the shield and the surface of the mercury. Cooling fins 23 are provided.
GB132/47A 1942-01-27 1947-01-02 Improvements in or relating to electric arc devices Expired GB620332A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US620332XA 1942-01-27 1942-01-27

Publications (1)

Publication Number Publication Date
GB620332A true GB620332A (en) 1949-03-23

Family

ID=22039788

Family Applications (1)

Application Number Title Priority Date Filing Date
GB132/47A Expired GB620332A (en) 1942-01-27 1947-01-02 Improvements in or relating to electric arc devices

Country Status (1)

Country Link
GB (1) GB620332A (en)

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