GB235191A - Improvements in or relating to incandescent electrical lamps - Google Patents

Improvements in or relating to incandescent electrical lamps

Info

Publication number
GB235191A
GB235191A GB14422/25A GB1442225A GB235191A GB 235191 A GB235191 A GB 235191A GB 14422/25 A GB14422/25 A GB 14422/25A GB 1442225 A GB1442225 A GB 1442225A GB 235191 A GB235191 A GB 235191A
Authority
GB
United Kingdom
Prior art keywords
wire
leading
filament
insulation
cap
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
GB14422/25A
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.)
NEUE GLUHLAMPEN GmbH
Original Assignee
NEUE GLUHLAMPEN GmbH
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 NEUE GLUHLAMPEN GmbH filed Critical NEUE GLUHLAMPEN GmbH
Publication of GB235191A publication Critical patent/GB235191A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
    • H01K9/04—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies with built-in manually operated switch

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

235,191. Neue Gluhlampen Ges., (Assignees of Berger, W.). June 3, 1924, [Convention date]. Multiple-filament lamps; caps; leading-in wires.-In bulbs of the kind wherein a number of central contacts e, f connected to the several filaments are adapted to be brought into use successively, the insulation g between them is arranged so that it can only be removed after the leading-in wire d to the discarded filament has been broken. This wire passes through apertures in the inner contact and in the insulating-disc g, and is soldered to the outer contact. The part of the leading-in wire d within the cap is enclosed in a glass tube k to prevent it from contacting with the leading-in wire c connected to the other filament. The contacts are attached to pins e<1>, f<1> by which they are secured in the insulation h of the cap. In the Specification as open to inspection under Sect. 91 (3) (a) a bulb is described wherein the several filaments comprise different lengths of a single wire. This form does not appear in the Specification as accepted.
GB14422/25A 1924-06-03 1925-06-02 Improvements in or relating to incandescent electrical lamps Expired GB235191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE235191X 1924-06-03

Publications (1)

Publication Number Publication Date
GB235191A true GB235191A (en) 1925-12-10

Family

ID=5895578

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14422/25A Expired GB235191A (en) 1924-06-03 1925-06-02 Improvements in or relating to incandescent electrical lamps

Country Status (1)

Country Link
GB (1) GB235191A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4782429A (en) * 1987-04-10 1988-11-01 Walton John F Long-life luminaires

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4782429A (en) * 1987-04-10 1988-11-01 Walton John F Long-life luminaires

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