GB379854A - Improvements in or relating to electric incandescent lamps - Google Patents

Improvements in or relating to electric incandescent lamps

Info

Publication number
GB379854A
GB379854A GB24136/31A GB2413631A GB379854A GB 379854 A GB379854 A GB 379854A GB 24136/31 A GB24136/31 A GB 24136/31A GB 2413631 A GB2413631 A GB 2413631A GB 379854 A GB379854 A GB 379854A
Authority
GB
United Kingdom
Prior art keywords
electric incandescent
incandescent lamps
relating
aug
frosted
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
GB24136/31A
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.)
Egyesuelt Izzolampa es Villamossagi Rt
Original Assignee
Egyesuelt Izzolampa es Villamossagi Rt
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 Egyesuelt Izzolampa es Villamossagi Rt filed Critical Egyesuelt Izzolampa es Villamossagi Rt
Publication of GB379854A publication Critical patent/GB379854A/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

  • Radiation-Therapy Devices (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Resistance Heating (AREA)

Abstract

379,854. Electric incandescent lamps. EGYESœLT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG, Ujpest, near Budapest. Aug. 27, 1931, No. 24136. Convention date, Aug. 28, 1930. [Class 39 (ii).] An electric incandescent lamp with a frosted red glass bulb is provided with two or more filaments which can be switched on separately or simultaneously. The filaments preferably have different illuminating powers, and the bulb is preferably frosted on its interior surface.
GB24136/31A 1930-08-28 1931-08-27 Improvements in or relating to electric incandescent lamps Expired GB379854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU379854X 1930-08-28

Publications (1)

Publication Number Publication Date
GB379854A true GB379854A (en) 1932-09-08

Family

ID=10978993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24136/31A Expired GB379854A (en) 1930-08-28 1931-08-27 Improvements in or relating to electric incandescent lamps

Country Status (1)

Country Link
GB (1) GB379854A (en)

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