GB182699A - Improvements in and relating to methods of manufacturing bodies of tungsten alloys - Google Patents

Improvements in and relating to methods of manufacturing bodies of tungsten alloys

Info

Publication number
GB182699A
GB182699A GB1947421A GB1947421A GB182699A GB 182699 A GB182699 A GB 182699A GB 1947421 A GB1947421 A GB 1947421A GB 1947421 A GB1947421 A GB 1947421A GB 182699 A GB182699 A GB 182699A
Authority
GB
United Kingdom
Prior art keywords
tungsten
filaments
alloys
coating
relating
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
GB1947421A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB1947421A priority Critical patent/GB182699A/en
Publication of GB182699A publication Critical patent/GB182699A/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
    • H01K3/02—Manufacture of incandescent bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wire Processing (AREA)

Abstract

182,699. British Thomson - Houston Co., Ltd., (General Electric Co.). July 19, 1921. Drawings to Specification. Alloys.-Filaments, wires, strips, and sheets of tungsten alloys are prepared by shaping metallic tungsten to the desired form, coating the resulting body with a constituent of the desired alloy, and heating the resulting composite body to a temperature at which the coating material alloys with the tungsten. Tungsten filaments may be coated electrolytically or otherwise with iron or zirconium, the unalloved composite filaments being afterwards mounted in lamp bulbs and the alloying operation effected therein. Specifications 21513/06 and 168,669, and the known process of coating tantalum filaments with tungsten and alloying them subsequently by heating are referred to.
GB1947421A 1921-07-19 1921-07-19 Improvements in and relating to methods of manufacturing bodies of tungsten alloys Expired GB182699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1947421A GB182699A (en) 1921-07-19 1921-07-19 Improvements in and relating to methods of manufacturing bodies of tungsten alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1947421A GB182699A (en) 1921-07-19 1921-07-19 Improvements in and relating to methods of manufacturing bodies of tungsten alloys

Publications (1)

Publication Number Publication Date
GB182699A true GB182699A (en) 1922-07-13

Family

ID=10129955

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1947421A Expired GB182699A (en) 1921-07-19 1921-07-19 Improvements in and relating to methods of manufacturing bodies of tungsten alloys

Country Status (1)

Country Link
GB (1) GB182699A (en)

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