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GB443411A - Improved method of manufacturing contact members for electric discharge tubes - Google Patents

Improved method of manufacturing contact members for electric discharge tubes

Info

Publication number
GB443411A
GB443411A GB20926/35A GB2092635A GB443411A GB 443411 A GB443411 A GB 443411A GB 20926/35 A GB20926/35 A GB 20926/35A GB 2092635 A GB2092635 A GB 2092635A GB 443411 A GB443411 A GB 443411A
Authority
GB
United Kingdom
Prior art keywords
contact members
electric discharge
discharge tubes
blank
improved method
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
GB20926/35A
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.)
Koninklijke Philips NV
Original Assignee
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB443411A publication Critical patent/GB443411A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/28—Manufacture of leading-in conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Switches (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Cold Cathode And The Manufacture (AREA)

Abstract

443,411. Making contact members for thermionic valves &c. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. July 23, 1935, No. 20926. Convention date, Oct. 4, 1934. [Class 83 (ii)] Contact members for the caps of electric discharge tubes are manufactured from a profiled rod or wire blank F and the various operations necessary are carried out without rotating the blank. The blank has a rib portion which is slotted by a milling cutter, the projections thus formed are made circular by a hollow cutter and then drilled ; a form cutter shapes the side of the bar prior to the contact members being severed by a saw.
GB20926/35A 1934-10-04 1935-07-23 Improved method of manufacturing contact members for electric discharge tubes Expired GB443411A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE443411X 1934-10-04

Publications (1)

Publication Number Publication Date
GB443411A true GB443411A (en) 1936-02-27

Family

ID=6529065

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20926/35A Expired GB443411A (en) 1934-10-04 1935-07-23 Improved method of manufacturing contact members for electric discharge tubes

Country Status (3)

Country Link
BE (1) BE411127A (en)
FR (1) FR794591A (en)
GB (1) GB443411A (en)

Also Published As

Publication number Publication date
FR794591A (en) 1936-02-20
BE411127A (en)

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