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GB800350A - Improvements in miniature electric incandescent lamps - Google Patents

Improvements in miniature electric incandescent lamps

Info

Publication number
GB800350A
GB800350A GB124656A GB124656A GB800350A GB 800350 A GB800350 A GB 800350A GB 124656 A GB124656 A GB 124656A GB 124656 A GB124656 A GB 124656A GB 800350 A GB800350 A GB 800350A
Authority
GB
United Kingdom
Prior art keywords
electric incandescent
miniature electric
bulb
incandescent lamps
jan
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
GB124656A
Inventor
John Willoughby Thomas Wright
Donald Arthur Howles
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
Priority to GB124656A priority Critical patent/GB800350A/en
Publication of GB800350A publication Critical patent/GB800350A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

800,350. Electric incandescent lamp caps; reflectors. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 11, 1957 [Jan. 13, 1956], No. 1246/56. Classes 39(2) and 75(2) The cap 7 into which the bulb 1 of a miniature electric incandescent lamp is cemented is extended to form a reflecting surface 9 of substantially parabolic shape with the filament 2 located at or near the focus. As shown the outer rim of the reflector is in line with the outer end of the bulb 1 and provides protection for the bulb.
GB124656A 1956-01-13 1956-01-13 Improvements in miniature electric incandescent lamps Expired GB800350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB124656A GB800350A (en) 1956-01-13 1956-01-13 Improvements in miniature electric incandescent lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB124656A GB800350A (en) 1956-01-13 1956-01-13 Improvements in miniature electric incandescent lamps

Publications (1)

Publication Number Publication Date
GB800350A true GB800350A (en) 1958-08-27

Family

ID=9718663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB124656A Expired GB800350A (en) 1956-01-13 1956-01-13 Improvements in miniature electric incandescent lamps

Country Status (1)

Country Link
GB (1) GB800350A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990494A (en) * 1959-07-10 1961-06-27 Liberman Milton Electric lamp
US3518478A (en) * 1966-06-09 1970-06-30 Lampes Elect Fab Reunies Electric incandescent lamp having an external screen and operable with a reflector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990494A (en) * 1959-07-10 1961-06-27 Liberman Milton Electric lamp
US3518478A (en) * 1966-06-09 1970-06-30 Lampes Elect Fab Reunies Electric incandescent lamp having an external screen and operable with a reflector

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