GB382786A - Improvements in incandescent electric lamps - Google Patents

Improvements in incandescent electric lamps

Info

Publication number
GB382786A
GB382786A GB33192/31A GB3319231A GB382786A GB 382786 A GB382786 A GB 382786A GB 33192/31 A GB33192/31 A GB 33192/31A GB 3319231 A GB3319231 A GB 3319231A GB 382786 A GB382786 A GB 382786A
Authority
GB
United Kingdom
Prior art keywords
paste
filament
nov
cap
conductive substance
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
GB33192/31A
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.)
BUNJIRO ARAKAWA
Original Assignee
BUNJIRO ARAKAWA
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 BUNJIRO ARAKAWA filed Critical BUNJIRO ARAKAWA
Publication of GB382786A publication Critical patent/GB382786A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/62—One or more circuit elements structurally associated with the lamp
    • H01K1/70—One or more circuit elements structurally associated with the lamp with built-in short-circuiting device, e.g. for serially connected lamps

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

382,786. Cut-out arrangements for electric incandescent lamps. ARAKAWA, B., 351, Kitashinagawa-Gotenyama, Shinagawamachi, Yebara-gun, Tokyo-fu, Japan. -(Assignee of Ono, T. ; 2, Kitashinmonzencho, Azabu-ku, Tokio.) Nov. 30, 1931, No. 33192. Convention date, Nov. 29, 1930. [Class 39 (ii).] A device for maintaining the circuit when the filament of one of a number of series connected lamps fails consists of a paste which includes as one of its constituents a quantity of powdered tin, carbon, or other conductive substance, and is used to secure the cap 1 to the bulb 3. In an example the paste consists of one part of the powdered conductive substance, two parts of litharge and sufficient glycerine to form a paste which sets hard to cement the cap and bulb together. The leading-in wires 6 are embedded within the paste 4, the resistance of which is high in comparison with that of the filament 5.
GB33192/31A 1930-11-29 1931-11-30 Improvements in incandescent electric lamps Expired GB382786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP382786X 1930-11-29

Publications (1)

Publication Number Publication Date
GB382786A true GB382786A (en) 1932-11-03

Family

ID=12520827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33192/31A Expired GB382786A (en) 1930-11-29 1931-11-30 Improvements in incandescent electric lamps

Country Status (1)

Country Link
GB (1) GB382786A (en)

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