FR943784A - Machine and method for the manufacture of spirals of metal wire and, in particular, of spiral filaments of electric incandescent lamps, electronic tubes and the like - Google Patents

Machine and method for the manufacture of spirals of metal wire and, in particular, of spiral filaments of electric incandescent lamps, electronic tubes and the like

Info

Publication number
FR943784A
FR943784A FR943784DA FR943784A FR 943784 A FR943784 A FR 943784A FR 943784D A FR943784D A FR 943784DA FR 943784 A FR943784 A FR 943784A
Authority
FR
France
Prior art keywords
spirals
manufacture
machine
metal wire
incandescent lamps
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
Other languages
French (fr)
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.)
TECNICA APPLIC METALLI DURI ED
Original Assignee
TECNICA APPLIC METALLI DURI ED
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 TECNICA APPLIC METALLI DURI ED filed Critical TECNICA APPLIC METALLI DURI ED
Application granted granted Critical
Publication of FR943784A publication Critical patent/FR943784A/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
    • H01K3/04—Machines therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wire Processing (AREA)
FR943784D 1946-05-18 1947-03-24 Machine and method for the manufacture of spirals of metal wire and, in particular, of spiral filaments of electric incandescent lamps, electronic tubes and the like Expired FR943784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT266228X 1946-05-18

Publications (1)

Publication Number Publication Date
FR943784A true FR943784A (en) 1949-03-17

Family

ID=11219908

Family Applications (1)

Application Number Title Priority Date Filing Date
FR943784D Expired FR943784A (en) 1946-05-18 1947-03-24 Machine and method for the manufacture of spirals of metal wire and, in particular, of spiral filaments of electric incandescent lamps, electronic tubes and the like

Country Status (6)

Country Link
US (1) US2458789A (en)
BE (1) BE472552A (en)
CH (1) CH266228A (en)
FR (1) FR943784A (en)
GB (1) GB622712A (en)
NL (1) NL66732C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667204A (en) * 1952-03-29 1954-01-26 Westinghouse Electric Corp Coiling head assembly
US3020423A (en) * 1959-07-08 1962-02-06 Eduard A Gerber Crystal frequency stabilization

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1338498A (en) * 1914-12-29 1920-04-27 Westinghouse Lamp Co Filament-winding machine
US1227659A (en) * 1916-10-18 1917-05-29 Gen Electric Wire-coiling apparatus.
US1667677A (en) * 1924-01-28 1928-04-24 Gen Electric Wire-coiling machine
NL16088C (en) * 1924-01-29

Also Published As

Publication number Publication date
US2458789A (en) 1949-01-11
NL66732C (en)
BE472552A (en)
GB622712A (en) 1949-05-05
CH266228A (en) 1950-01-15

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