GB640498A - Improvements in or relating to discharge tubes for making and breaking electric circuits - Google Patents

Improvements in or relating to discharge tubes for making and breaking electric circuits

Info

Publication number
GB640498A
GB640498A GB4485/46A GB448546A GB640498A GB 640498 A GB640498 A GB 640498A GB 4485/46 A GB4485/46 A GB 4485/46A GB 448546 A GB448546 A GB 448546A GB 640498 A GB640498 A GB 640498A
Authority
GB
United Kingdom
Prior art keywords
pulses
circuit
anode
main
relating
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
GB4485/46A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB640498A publication Critical patent/GB640498A/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

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

640,498. Converting. PHILIPS LAMPS, Ltd. Feb. 13, 1946, No. 4485. Convention date, April 12, 1941. [Class 38 (ii)] [Also in Group XL (a)] A mercury-cathode device for use as an inverter, and having an igniter 82 and an auxiliary anode 81 in a separate chamber screened off from the main anode 80 (see Group XL (a)), is used in a circuit in which an extinguishing pulse is applied simultaneously to the main and auxiliary anodes. Control voltage 72 applied to relay tube 66 caused it to conduct during positive half-cycles, and these are converted, by transformer 64 in its cathode circuit, into pulses of steep wave-front which are applied simultaneously to main anode 80 and auxiliary anode 81 by condensers 78, 79 respectively. Igniter pulses are provided by circuit 83. In a modification, Fig. 5 (not shown), the control pulse is produced by a rotating cam acting on a switch in series with a battery. The device may also be used as a switch for high-tension D.C., the control pulses being applied for example by a -push-button. Specification 520,183 is referred to.
GB4485/46A 1941-04-12 1946-02-13 Improvements in or relating to discharge tubes for making and breaking electric circuits Expired GB640498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL640498X 1941-04-12

Publications (1)

Publication Number Publication Date
GB640498A true GB640498A (en) 1950-07-19

Family

ID=19790011

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4485/46A Expired GB640498A (en) 1941-04-12 1946-02-13 Improvements in or relating to discharge tubes for making and breaking electric circuits

Country Status (1)

Country Link
GB (1) GB640498A (en)

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