GB413127A - Improvements in and relating to electric lamps - Google Patents

Improvements in and relating to electric lamps

Info

Publication number
GB413127A
GB413127A GB21495/33A GB2149533A GB413127A GB 413127 A GB413127 A GB 413127A GB 21495/33 A GB21495/33 A GB 21495/33A GB 2149533 A GB2149533 A GB 2149533A GB 413127 A GB413127 A GB 413127A
Authority
GB
United Kingdom
Prior art keywords
casing
bulb
conductors
july
urea
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
GB21495/33A
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 GB413127A publication Critical patent/GB413127A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/34—Double wall vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Luminescent Compositions (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

413,127. Electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Prideaux, G. F. ; 1187, Plainfield Road, South Euclid, Ohio, U.S.A.) July 31, 1933, No. 21495. Convention date, July 29, 1932. [Class 39 (ii).] An electric lamp comprises a bulb 10 of glass or other vitreous material containing an electric light source 11, leading-in conductors 13 sealed in the bulb and extending outside at 20, 21 and a casing 22 of thermoplastic material moulded about the conductors 20, 21 and covering substantially the whole of the bulb surface. The terminal supports 21 are supported in the casing, which may be screw-threaded at 27 to carry a side terminal 29 and an end terminal 28. Lamps may be connected in series each having a conductor wire at opposite ends embedded in the casing. The casing may be a synthetic resin such as are formed by the reactions between urea or thio-urea and formaldehyde and known under the trade name "Elaskon" and the Registered Trade Mark "Beetle," or such as the phenol-formaldehyde condensation resins known under the Registered Trade Marks " Bakelite " and "Durite." Cellulose compounds such as the acetate nitrate or benzoate may be used, or shellac or varnish with a filler, hard rubber, celluloid or casein products.
GB21495/33A 1932-07-29 1933-07-31 Improvements in and relating to electric lamps Expired GB413127A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US625987A US1995863A (en) 1932-07-29 1932-07-29 Electric lamp

Publications (1)

Publication Number Publication Date
GB413127A true GB413127A (en) 1934-07-12

Family

ID=24508469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21495/33A Expired GB413127A (en) 1932-07-29 1933-07-31 Improvements in and relating to electric lamps

Country Status (3)

Country Link
US (1) US1995863A (en)
FR (1) FR758644A (en)
GB (1) GB413127A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413511A (en) * 1965-07-19 1968-11-26 Westinghouse Electric Corp Electric lamp having in situ molded base of foamed plastic

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934792A (en) * 1958-06-16 1960-05-03 Marco Ind Method of fabricating indicator light with molded nylon jacket
GB943534A (en) * 1959-06-29 1963-12-04 Hunting Eng Ltd Improvements relating to electric lamp bulbs
US3077022A (en) * 1962-05-03 1963-02-12 Burroughs Corp Lamp and method of manufacture
US3267598A (en) * 1963-06-05 1966-08-23 North American Aviation Inc Internally illuminated matrix
US3714414A (en) * 1971-02-09 1973-01-30 Sternius Akhegvlag & Co Kb Ornamental lighting means
US4070594A (en) * 1975-02-13 1978-01-24 Matsushita Electronics Corporation Light source device to be utilized mainly for projection purposes
FR2351352A1 (en) * 1976-05-10 1977-12-09 Anquetin Jacques NEW SOFT LIGHT RAMP
US4497756A (en) * 1981-10-05 1985-02-05 Gte Products Corporation Method of making a photoflash article using injection molding
DE4425681A1 (en) * 1994-07-20 1996-01-25 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Unit with a lamp
US20070282400A1 (en) * 2006-06-02 2007-12-06 Kendall Jay Gorham Combination medical therapy device that integrates: electrical stimulation, light therapy, heat, pressure, and vibration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413511A (en) * 1965-07-19 1968-11-26 Westinghouse Electric Corp Electric lamp having in situ molded base of foamed plastic

Also Published As

Publication number Publication date
FR758644A (en) 1934-01-20
US1995863A (en) 1935-03-26

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