GB713828A - Improvements in lead-in conductors for electric lamps and the like - Google Patents

Improvements in lead-in conductors for electric lamps and the like

Info

Publication number
GB713828A
GB713828A GB2198052A GB2198052A GB713828A GB 713828 A GB713828 A GB 713828A GB 2198052 A GB2198052 A GB 2198052A GB 2198052 A GB2198052 A GB 2198052A GB 713828 A GB713828 A GB 713828A
Authority
GB
United Kingdom
Prior art keywords
group
sept
wires
conductors
lead
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
GB2198052A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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
Priority claimed from US244818A external-priority patent/US2667595A/en
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB713828A publication Critical patent/GB713828A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/02—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing by fusing glass directly to metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/34—Double-wall vessels or containers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

713,828. Electric discharge tubes. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 1, 1952 [Sept..1,.1951], No. 21980/52. Class 39(1) [Also in Group XI] The leading-in wires 1 to the main electrodes of high pressure discharge lamps are each provided at their inner end 2 with a small slipover coil 10 of tungsten wire which encloses a'small sliver 11 of thorium metal to increase the electron emission of the electrodes. The parts of the wires intermediate their respective ends are flattened by rolling longitudinally to facilitate sealing into an envelope of quartz or the like (see Group XI). Specifications 472,126 and 474,394, [both in Group XXXVI], are referred to.
GB2198052A 1951-09-01 1952-09-01 Improvements in lead-in conductors for electric lamps and the like Expired GB713828A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US244818A US2667595A (en) 1951-09-01 1951-09-01 Ribbon lead construction

Publications (1)

Publication Number Publication Date
GB713828A true GB713828A (en) 1954-08-18

Family

ID=31188057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2198052A Expired GB713828A (en) 1951-09-01 1952-09-01 Improvements in lead-in conductors for electric lamps and the like

Country Status (1)

Country Link
GB (1) GB713828A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582704A (en) * 1968-06-06 1971-06-01 Gen Electric Manufacture of foil seals
US3693241A (en) * 1970-08-27 1972-09-26 Elmer G Fridrich Manufacture of foil seals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582704A (en) * 1968-06-06 1971-06-01 Gen Electric Manufacture of foil seals
US3693241A (en) * 1970-08-27 1972-09-26 Elmer G Fridrich Manufacture of foil seals

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