GB1443691A - Method and apparatus for manufacturing bent filaments for incan descent lamps - Google Patents

Method and apparatus for manufacturing bent filaments for incan descent lamps

Info

Publication number
GB1443691A
GB1443691A GB1141975A GB1141975A GB1443691A GB 1443691 A GB1443691 A GB 1443691A GB 1141975 A GB1141975 A GB 1141975A GB 1141975 A GB1141975 A GB 1141975A GB 1443691 A GB1443691 A GB 1443691A
Authority
GB
United Kingdom
Prior art keywords
filament
tongs
bending
mandrel
filaments
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
GB1141975A
Other languages
English (en)
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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
Priority claimed from DE19742413791 external-priority patent/DE2413791C2/de
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1443691A publication Critical patent/GB1443691A/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)
GB1141975A 1974-03-22 1975-03-19 Method and apparatus for manufacturing bent filaments for incan descent lamps Expired GB1443691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742413791 DE2413791C2 (de) 1974-03-22 Verfahren zur Herstellung von gebogenen Glühwendeln und Vorrichtung zur Durchführung dieses Verfahrens

Publications (1)

Publication Number Publication Date
GB1443691A true GB1443691A (en) 1976-07-21

Family

ID=5910822

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1141975A Expired GB1443691A (en) 1974-03-22 1975-03-19 Method and apparatus for manufacturing bent filaments for incan descent lamps

Country Status (4)

Country Link
US (1) US3993107A (enExample)
JP (1) JPS50128383A (enExample)
FR (1) FR2265176B3 (enExample)
GB (1) GB1443691A (enExample)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1214551A (en) * 1916-03-29 1917-02-06 John Karpouich Machine for bending rods.
US1733802A (en) * 1924-05-12 1929-10-29 Westinghouse Lamp Co Method of mounting coiled filaments
US3048201A (en) * 1959-12-29 1962-08-07 Westinghouse Electric Corp Article-forming device

Also Published As

Publication number Publication date
DE2413791B1 (de) 1975-07-31
US3993107A (en) 1976-11-23
FR2265176B3 (enExample) 1977-11-25
FR2265176A1 (enExample) 1975-10-17
JPS50128383A (enExample) 1975-10-09
DE2413791A1 (enExample) 1975-07-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee