GB293854A - Improvements in or relating to mercury arc rectifiers - Google Patents

Improvements in or relating to mercury arc rectifiers

Info

Publication number
GB293854A
GB293854A GB17296/28A GB1729628A GB293854A GB 293854 A GB293854 A GB 293854A GB 17296/28 A GB17296/28 A GB 17296/28A GB 1729628 A GB1729628 A GB 1729628A GB 293854 A GB293854 A GB 293854A
Authority
GB
United Kingdom
Prior art keywords
electrode
mercury
solenoid
arc
starting
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
GB17296/28A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Publication of GB293854A publication Critical patent/GB293854A/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
    • H01J13/34—Igniting arrangements
    • 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
    • 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
    • H01J2893/0087—Igniting means; Cathode spot maintaining or extinguishing means

Landscapes

  • Arc Welding Control (AREA)

Abstract

293,854. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Shand, E. B.). July 14, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Low-pressure metallic-vapour apparatus. - A mercury-vapour rectifier is provided with a stationary exciting electrode and a movable starting-electrode, so arranged that the arc is struck by the starting-electrode and then transferred to the exciting electrode. The exciting electrode 6 is of steel and is carried on a steel tube 7 passing air-tight through the sealed lid 8 of an exhausted tank 1 containing the working anode 2 and the mercury cathode 3. The starting electrode 4 is carried on a rod 5 passing through the tube 7 and carrying an armature 12 which is attracted by a solenoid 13 to cause the electrode 4 to dip into the mercury 3. The solenoid is in parallel with the electrode 4 so as to be short-circuited when the electrode makes contact with the mercury, whereon a spring 11 raises the electrode and strikes the arc. The electrode 4 is then withdrawn inside of the electrode 6, and the arc is transferred to the rounded edge of the latter. The solenoid 13 and the electrodes 3, 4 are supplied with current from the main circuit through a transformer 28 and rectifying devices 30. -
GB17296/28A 1927-07-14 1928-06-14 Improvements in or relating to mercury arc rectifiers Expired GB293854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US293854XA 1927-07-14 1927-07-14

Publications (1)

Publication Number Publication Date
GB293854A true GB293854A (en) 1929-04-25

Family

ID=21848739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17296/28A Expired GB293854A (en) 1927-07-14 1928-06-14 Improvements in or relating to mercury arc rectifiers

Country Status (1)

Country Link
GB (1) GB293854A (en)

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