US1734809A - Leading-in conductor - Google Patents

Leading-in conductor Download PDF

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Publication number
US1734809A
US1734809A US638931A US63893123A US1734809A US 1734809 A US1734809 A US 1734809A US 638931 A US638931 A US 638931A US 63893123 A US63893123 A US 63893123A US 1734809 A US1734809 A US 1734809A
Authority
US
United States
Prior art keywords
discs
disc
fused
leading
vitreous material
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 - Lifetime
Application number
US638931A
Other languages
English (en)
Inventor
Holst Gilles
Bergmans Jan
Bol Cornelis
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
Application granted granted Critical
Publication of US1734809A publication Critical patent/US1734809A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/20—Sealing-in wires directly into the envelope
    • 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
    • H01J5/40—End-disc seals, e.g. flat header
    • H01J5/42—End-disc seals, e.g. flat header using intermediate part
    • 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
    • H01J5/46—Leading-in conductors
    • 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
    • H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
    • H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
    • H01J2893/0034—Lamp bases
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/21—Utilizing thermal characteristic, e.g., expansion or contraction, etc.

Definitions

  • the present invention relates to leading-inl conductors and more particularly to electric conductors which are hermetically sealed in l cially suitable for conducting relatively heavy electric currents.
  • a ⁇ disc is fused into the glass vessel, which' disc con sists of a metallic material which on fusing in does not generate gases and has a coeiicientof expansion which is little different from that of the vitreous material into which it is to be sealed, a conductor being tixed to said disc.
  • the invention is especial-ly adapted for use in connection with discs composed of a metallic'material which will be vwetv by -the ⁇ rsurrounding vitreous material. Still more particularly the invention is adapted for usl ing chrome-iron of such composition that its coefficient of expansion differs little from that glass.
  • the disc is preferably fused into the wall of said tubular member at a short distance from its end.
  • leading-in conductors ⁇ may be led through the discs but preferably they4 are fixed on each side of the discs.
  • the discsconsist of chrome-iron itis desirable to choose nickel for the portions of the conductors fused to the discs.
  • a plurality of. discs is hermetically connected together along at least a portion of their circumferences by meansU of a layerI of vitreous material, thereby forming a disc of larger dimensions, said disc being fused into the vitreous wall ofthe vessel at ⁇ its circumference and a conductor being fixed to each of the discs.4
  • the discs are preferably sector-sha ed so that ⁇ they form togethera circular isc of larger dimension
  • the present invention relates also to a y.method for sealing in the discs into a wall of vitreous material. This method is characterized in first applying a thin layer of vitreous material around the circumference of said disc and then sealing the disc with -saidglass layer into the wall of' vitreous material.
  • Figure l shows a leading-in conductor having the features according tothe present in
  • n -f ⁇ Figure 5 shows a top-view of an arrangement with four leading-in wires
  • Figure 6 shows a lamp in which the discs Y are fused directly into the, neck of thebulb.
  • Figure 1 shows a glass tube l, a disc2 and leading-in wires 3 and 4.
  • the leadiiigin wires may be constructed of any ⁇ suitable material o good conductivity, e.l g. of copper..
  • leading-in wires may be Xed to the dises in various ways. Theymay be le'd through the discs and xed to the discs by soldering, welding or in any other way. However, in doing so there is a risk of formv ing air-leaks at the place ofintroduction and it is therefore preferable to fix the leading-in wires at both sides to the. discs for instance by soldering or weldin If chrome-iron discs are used, it is pre rable to construct the portions, fixed to the discs, of nickel. For this metal welding is a good and easy way of iXing the same to chrome-iron.
  • one of the leading-in wires (3) which serves to X the electrodes or the incandescent body maybe stiff and preferably consists wholly or at least as to the portion xed to the isc, of nickel.
  • the other leading-in wire (4) is preferably made flexible and may consist ofv twisted copper wire.
  • the glass bulb 6 contains the glass/stem which ends in the tubes 8 and 9, into which the discs 10 and 11 are fused.
  • the discs support on one side conductors 12 and 13 with the tungsten electrodes and on the other side the leading-in wires 1d and 15. ⁇
  • the lamp shown in Figures 3 and 4 has a bulb 16, into which the stem 17 is fused.
  • Two crescent-shaped discs 18 and 19 are fused into this stem 17 whilst leading-in 'Wires 20, 21, 22 and 23 are fixed on each side of the discs.
  • the dises may be shaped into any form desired.
  • the discs can be fused together with a relav tively narrow glass layer between them, whilst the free part of the circumference of at least one of the discs is then fused into the wall of the glass vessel.
  • One or more discs may also be connected with the other disc (discs) along the whole of their circumference. For instance a circular and an annular discq can be connected by means of an intermediate annular glass layer, and then the external circumference of the annular disc, with the glass wall can be fused together.
  • the shape of the discs depends on the shape of the glass vessel at the place of fusing. lf several wires are fused into a tubular part with'circular section, the most simple shape for the discs is the sectorl of a circle, whereas in the case of two leadu ing-in wires the crescent shape is more convenient.
  • thepole wires 20 and 21 supporting the incandescent iilament consist preferably of nickel, whilst also the Wire-portions 22 and 23 are of nickel.
  • flexible wires 31 and 32 which consist of copper, may be fixed to the nickel by l'soldering or welding.
  • the discs are preferably first connected together by a glass layer and then the aggregate obtained is fused into the glass wall for example into a tube.
  • the fusing is assisted by first surrounding the external circumference of the discs by a thin glass layer.
  • Figure 6 represents an embodiment of the invention in which the discs, with the leading-in wires fixed to them, are directly fused to the neck 29 of the bulb 30.
  • the present invention may be applied to electric glow lamps and all kinds of discharge tubes such as rectitiers, generating tubes or receiving tubes, gasfilled glowlamps, vapour lamps or the like. It is particularly advantageous in cases where no good results can be obtained with leading-in wires of platinum, nickel-iron or nickel-iron with copper-coating, as generally used; particularly in the case of heavy currents of e. g. more than amperes.
  • said latter disc being hermetically sealed at layer of. vitreous material, thereby forming together a disc of larger dimensions, said disc of larger dimensions being fused into said vitreous Wall of said vessel, and conduetors fixed to said dises.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Glass Compositions (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
US638931A 1922-05-27 1923-05-14 Leading-in conductor Expired - Lifetime US1734809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL104436X 1922-05-27

Publications (1)

Publication Number Publication Date
US1734809A true US1734809A (en) 1929-11-05

Family

ID=19774750

Family Applications (1)

Application Number Title Priority Date Filing Date
US638931A Expired - Lifetime US1734809A (en) 1922-05-27 1923-05-14 Leading-in conductor

Country Status (6)

Country Link
US (1) US1734809A (de)
AT (1) AT101830B (de)
CH (1) CH104436A (de)
DE (1) DE496041C (de)
FR (1) FR556438A (de)
GB (1) GB198322A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767896C (de) * 1933-10-31 1954-11-15 Walter Daellenbach Dr Hitzebestaendige Elektrodeneinfuehrung fuer Vakuumentladungsapparate, z. B. Quecksilberdampfgleichrichter, mit metallenem, von der Vakuum-pumpe abgetrenntem Vakuumgefaess
US2439916A (en) * 1945-03-01 1948-04-20 Westinghouse Electric Corp Method of sealing coaxial structures

Also Published As

Publication number Publication date
FR556438A (fr) 1923-07-20
DE496041C (de) 1930-04-14
AT101830B (de) 1925-11-25
GB198322A (en) 1923-07-26
CH104436A (de) 1924-04-16

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