GB347636A - Improvements in or relating to incandescent electric lamps - Google Patents

Improvements in or relating to incandescent electric lamps

Info

Publication number
GB347636A
GB347636A GB3072/30A GB307230A GB347636A GB 347636 A GB347636 A GB 347636A GB 3072/30 A GB3072/30 A GB 3072/30A GB 307230 A GB307230 A GB 307230A GB 347636 A GB347636 A GB 347636A
Authority
GB
United Kingdom
Prior art keywords
filament
bulb
axis
silvered
fits
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
GB3072/30A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB347636A publication Critical patent/GB347636A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/58—Cooling arrangements

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
GB3072/30A 1929-08-09 1930-01-29 Improvements in or relating to incandescent electric lamps Expired GB347636A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE1863423X 1929-08-09
BE347636X 1929-11-22

Publications (1)

Publication Number Publication Date
GB347636A true GB347636A (en) 1931-04-29

Family

ID=25661997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3072/30A Expired GB347636A (en) 1929-08-09 1930-01-29 Improvements in or relating to incandescent electric lamps

Country Status (5)

Country Link
US (1) US1863423A (enrdf_load_stackoverflow)
BE (1) BE365595A (enrdf_load_stackoverflow)
FR (1) FR696318A (enrdf_load_stackoverflow)
GB (1) GB347636A (enrdf_load_stackoverflow)
NL (1) NL27868C (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423525A (en) * 1945-02-13 1947-07-08 Grover C Singer Electric lamp

Also Published As

Publication number Publication date
FR696318A (fr) 1930-12-27
NL27868C (enrdf_load_stackoverflow) 1932-09-15
BE365595A (enrdf_load_stackoverflow)
US1863423A (en) 1932-06-14

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