GB271029A - Improvements in or relating to electric incandescent lamps - Google Patents

Improvements in or relating to electric incandescent lamps

Info

Publication number
GB271029A
GB271029A GB2858026A GB2858026A GB271029A GB 271029 A GB271029 A GB 271029A GB 2858026 A GB2858026 A GB 2858026A GB 2858026 A GB2858026 A GB 2858026A GB 271029 A GB271029 A GB 271029A
Authority
GB
United Kingdom
Prior art keywords
bulb
relating
tube
incandescent lamps
wires
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
GB2858026A
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.)
Gral Ges fur Elektro Ind M B
Original Assignee
Gral Ges fur Elektro Ind M B
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
Priority claimed from DEG65754D external-priority patent/DE455320C/en
Priority claimed from DEG67301D external-priority patent/DE464660C/en
Application filed by Gral Ges fur Elektro Ind M B filed Critical Gral Ges fur Elektro Ind M B
Publication of GB271029A publication Critical patent/GB271029A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01K3/20—Sealing-in wires directly into the envelope

Abstract

271,029. Gral Ges. f³r Electro-Industrie. May 17, 1926, [Convention date]. Addition to 261,398. Making lamps.-In the manufacture of miniature lamps, the neck of the bulb i is assembled on a support 1 with an exhaust tube e, leading-in wires d', d<2> carrying a filament h, and a metal tube or rod of porous carbon g, and the glass parts are fused and pressed on to the wires and the member g, as described in the parent Specification. The tube or porous rod g forms a communication between the exhaust tube and the interior of the bulb to enable the bulb to be exhausted.
GB2858026A 1925-11-13 1926-11-12 Improvements in or relating to electric incandescent lamps Expired GB271029A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG65754D DE455320C (en) 1925-11-13 1925-11-13 Feet for tipless electric light bulbs
DEG67301D DE464660C (en) 1926-05-17 1926-05-17 Topless dwarf glow lamp

Publications (1)

Publication Number Publication Date
GB271029A true GB271029A (en) 1927-06-30

Family

ID=25979027

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2852026A Expired GB261398A (en) 1925-11-13 1926-11-12 Improvements in or relating to electric incandescent lamps
GB2858026A Expired GB271029A (en) 1925-11-13 1926-11-12 Improvements in or relating to electric incandescent lamps

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB2852026A Expired GB261398A (en) 1925-11-13 1926-11-12 Improvements in or relating to electric incandescent lamps

Country Status (2)

Country Link
FR (1) FR624497A (en)
GB (2) GB261398A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028230B (en) * 1955-11-28 1958-04-17 Gen Electric Process for the production of incandescent lamps and similar glass vessels
DE2341028B2 (en) * 1973-08-14 1975-08-28 Philips Patentverwaltung Gmbh, 2000 Hamburg Process for the production of miniature incandescent lamps

Also Published As

Publication number Publication date
FR624497A (en) 1927-07-19
GB261398A (en) 1927-06-30

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