GB209051A - Improvements in or relating to gas-filled electric glowlamps with helically wound filaments - Google Patents

Improvements in or relating to gas-filled electric glowlamps with helically wound filaments

Info

Publication number
GB209051A
GB209051A GB30116/23A GB3011623A GB209051A GB 209051 A GB209051 A GB 209051A GB 30116/23 A GB30116/23 A GB 30116/23A GB 3011623 A GB3011623 A GB 3011623A GB 209051 A GB209051 A GB 209051A
Authority
GB
United Kingdom
Prior art keywords
glowlamps
relating
gas
filament
helically wound
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
GB30116/23A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB209051A publication Critical patent/GB209051A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/16—Electric connection thereto

Landscapes

  • Wire Processing (AREA)
  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

209,051. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Dec. 23, 1922, [Convention date]. Filaments; attaching; supports for. - In gasfilled lamps having coiled filaments each end 8 of the filament is disposed around a metal mandrel 11 and together therewith is secured to the conductor 5, preferably by welding. The two conductors 5 may consequently be set farther apart than is usual, and may be curved as shown in Fig. 2 so that their ends are disposed laterally above the filament 6. In the case of a zigzag filament, the bends are supported by hooks 9, 10.
GB30116/23A 1922-12-23 1923-11-29 Improvements in or relating to gas-filled electric glowlamps with helically wound filaments Expired GB209051A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL209051X 1922-12-23

Publications (1)

Publication Number Publication Date
GB209051A true GB209051A (en) 1924-05-15

Family

ID=19778722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30116/23A Expired GB209051A (en) 1922-12-23 1923-11-29 Improvements in or relating to gas-filled electric glowlamps with helically wound filaments

Country Status (4)

Country Link
US (1) US1637034A (en)
FR (1) FR560310A (en)
GB (1) GB209051A (en)
NL (1) NL13404C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2848642A (en) * 1954-11-19 1958-08-19 Westinghouse Electric Corp Filament mounting
US4032809A (en) * 1966-03-21 1977-06-28 Westinghouse Electric Corporation Tantalum carbide or tantalum-alloy carbide filament mounting and method
US3470413A (en) * 1966-04-28 1969-09-30 Sylvania Electric Prod Projector lamp filament support
US3383539A (en) * 1967-02-06 1968-05-14 Sylvania Electric Prod Projection lamp

Also Published As

Publication number Publication date
FR560310A (en) 1923-10-02
US1637034A (en) 1927-07-26
NL13404C (en) 1925-08-15

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