GB392858A - Improvements in and relating to electric incandescent lamps - Google Patents

Improvements in and relating to electric incandescent lamps

Info

Publication number
GB392858A
GB392858A GB37031/32A GB3703132A GB392858A GB 392858 A GB392858 A GB 392858A GB 37031/32 A GB37031/32 A GB 37031/32A GB 3703132 A GB3703132 A GB 3703132A GB 392858 A GB392858 A GB 392858A
Authority
GB
United Kingdom
Prior art keywords
tube
marble
electric incandescent
dec
relating
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
GB37031/32A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB392858A publication Critical patent/GB392858A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/30—Envelopes; Vessels incorporating lenses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/12—Joining of mount or stem to vessel; Joining parts of the vessel, e.g. by butt sealing

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
GB37031/32A 1931-12-31 1932-12-31 Improvements in and relating to electric incandescent lamps Expired GB392858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US392858XA 1931-12-31 1931-12-31

Publications (1)

Publication Number Publication Date
GB392858A true GB392858A (en) 1933-05-25

Family

ID=21904659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37031/32A Expired GB392858A (en) 1931-12-31 1932-12-31 Improvements in and relating to electric incandescent lamps

Country Status (2)

Country Link
FR (1) FR748029A (fr)
GB (1) GB392858A (fr)

Also Published As

Publication number Publication date
FR748029A (fr) 1933-06-27

Similar Documents

Publication Publication Date Title
GB433033A (en) Improvements in and relating to electric incandescent lamps
GB388716A (en) Improvements in and relating to the manufacture of glass articles
GB392858A (en) Improvements in and relating to electric incandescent lamps
GB512665A (en) Improvements in and relating to electric lamps or the like
GB429886A (en) Improvements in and relating to electric lamps
GB376092A (en) Improvements in electric lamps
GB435527A (en) Improvements in and relating to electric lamps or the like
GB498827A (en) Improvements relating to electric incandescent lamps
GB709865A (en) Improvements in and relating to the manufacture of decorative electric incandescent lamps
GB499682A (en) Improvements in methods of capping vitreous vessels, such as electric incandescent lamps, without the use of cement
GB433233A (en) Improvements in and relating to electric lamps
GB271029A (en) Improvements in or relating to electric incandescent lamps
GB800350A (en) Improvements in miniature electric incandescent lamps
GB473257A (en) Improvements in or relating to dwarf electric incandescent lamps
GB211879A (en) Improvements in or relating to incandescent electric lamps and other similar apparatus, and to glass refining apparatus in connection therewith
GB455842A (en) Improvements in or relating to miner's electric lamp bulbs
GB417986A (en) Improvements in and relating to electric lamps
GB479964A (en) Improvements in or relating to electric incandescent lamps for projection and like purposes
GB472753A (en) Improvements in or relating to caps for electric incandescent lamps or the like
AU100087B2 (en) Improvements in or relating to electric incandescent lamps wherein the filament is sealed into a bulb whichis surrounded bya second bulb
GB817601A (en) Improvements in and relating to electric lamps
GB359712A (en) Improvements in or relating to electric incandescent lamps
GB381837A (en) Improvements in or relating to capless electric incandescent lamps or discharge tubes
GB289478A (en) Improvements in and relating to the manufacture of incandescent electric lamps
GB432776A (en) Improvements in electric incandescent lamps