GB191030323A - Improvements in Supports for Electric Incandescent Lamp Filaments. - Google Patents

Improvements in Supports for Electric Incandescent Lamp Filaments.

Info

Publication number
GB191030323A
GB191030323A GB191030323DA GB191030323A GB 191030323 A GB191030323 A GB 191030323A GB 191030323D A GB191030323D A GB 191030323DA GB 191030323 A GB191030323 A GB 191030323A
Authority
GB
United Kingdom
Prior art keywords
helix
filament
wire
tungsten
supports
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
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
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Application granted granted Critical
Publication of GB191030323A publication Critical patent/GB191030323A/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
    • H01K3/06—Attaching of incandescent bodies to mount

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)

Abstract

30,323. British Thomson-Houston Co., [General Electric Co.]. Dec. 30. Filaments, attaching; filaments, supports for. -A filament 3 is strengthened at the point of attachment b y s u rrounding it by a helix 2 of a resilient refractory material such as drawn tungsten or molybdenum. In the form shown, the filament, which may be of tungsten, is passed through the helix 2 into a hole in the flattened end of a leading-in wire 1, which may be of copper, and after the helix has been brought against the wire, the parts are united, for instance by arc-fusion, which may take place in hydrogen or the like. The parts may be introduced on a support into a glass bell, where the wire 1 is caused to engage a notched rod forming one electrode, and is then touched by a graphite rod forming the other electrode, which is immediately withdrawn to strike the arc. A loop filament so mounted may be supported in a lamp by engaging a coil of a resilient helix attached by a glass rod to the bulb-tip. The helix may consist of drawn tungsten or molybdenum which softens when hot and yields if the filament is too tightly strained.
GB191030323D 1910-12-30 1910-12-30 Improvements in Supports for Electric Incandescent Lamp Filaments. Expired GB191030323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191030323T 1910-12-30

Publications (1)

Publication Number Publication Date
GB191030323A true GB191030323A (en) 1911-09-14

Family

ID=32495879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191030323D Expired GB191030323A (en) 1910-12-30 1910-12-30 Improvements in Supports for Electric Incandescent Lamp Filaments.

Country Status (1)

Country Link
GB (1) GB191030323A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1684331A1 (en) * 2004-09-10 2006-07-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Electric incandescent lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1684331A1 (en) * 2004-09-10 2006-07-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Electric incandescent lamp

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