GB1263846A - Methods of making electric incandescent lamps - Google Patents

Methods of making electric incandescent lamps

Info

Publication number
GB1263846A
GB1263846A GB32906/70A GB3290670A GB1263846A GB 1263846 A GB1263846 A GB 1263846A GB 32906/70 A GB32906/70 A GB 32906/70A GB 3290670 A GB3290670 A GB 3290670A GB 1263846 A GB1263846 A GB 1263846A
Authority
GB
United Kingdom
Prior art keywords
bulb
neck
leads
tube
electric incandescent
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
GB32906/70A
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.)
Jean Rochet SA
Original Assignee
Jean Rochet SA
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 Jean Rochet SA filed Critical Jean Rochet SA
Publication of GB1263846A publication Critical patent/GB1263846A/en
Expired legal-status Critical Current

Links

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

1,263,846. Electric incandescent lamp. JEAN ROCHET S.A. 7 July, 1970 [6 Aug., 1969], No. 32906/70. Heading H1F. An electric incandescent lamp is made by placing within a glass bulb 1 a filament structure 3 having a support 4 and leads 5, 6. A glass exhaust tube 7 is placed within the neck 2 of the bulb with the leads 5, 6 between the neck and the tube. The neck, leads and exhaust tube are heat sealed by a clamping device during which a tungsten needle is inserted in tube 7 to prevent it collapsing. After sealing, the neck of the bulb is cruciform in cross-section (Fig. 4, not shown). The bulb is evacuated via tube 7, the bulb tipped-off and a metal cap secured to the bulb by glue. Electrical connections are made to the cap by leads 5, 6.
GB32906/70A 1969-08-06 1970-07-07 Methods of making electric incandescent lamps Expired GB1263846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6927006A FR2055909A5 (en) 1969-08-06 1969-08-06

Publications (1)

Publication Number Publication Date
GB1263846A true GB1263846A (en) 1972-02-16

Family

ID=9038704

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32906/70A Expired GB1263846A (en) 1969-08-06 1970-07-07 Methods of making electric incandescent lamps

Country Status (7)

Country Link
US (1) US3685881A (en)
BE (1) BE753587A (en)
DE (1) DE2035556A1 (en)
FR (1) FR2055909A5 (en)
GB (1) GB1263846A (en)
LU (1) LU61461A1 (en)
NL (1) NL7005242A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5378183A (en) * 1993-04-12 1995-01-03 Preston; Daniel Method of manufacturing electrodes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2122117A (en) * 1937-05-07 1938-06-28 Electronics Supply Corp Reconditioning electronic unit
US2359483A (en) * 1942-10-17 1944-10-03 Gen Electric Vitreous electrical device and its fabrication
NL208036A (en) * 1955-06-16
US2946641A (en) * 1957-08-28 1960-07-26 Corning Glass Works Lamp manufacture

Also Published As

Publication number Publication date
LU61461A1 (en) 1971-06-14
NL7005242A (en) 1971-02-09
US3685881A (en) 1972-08-22
FR2055909A5 (en) 1971-05-14
BE753587A (en) 1970-12-31
DE2035556A1 (en) 1971-02-25

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