GB549481A - Improvements in and relating to electric lamps - Google Patents

Improvements in and relating to electric lamps

Info

Publication number
GB549481A
GB549481A GB1404441A GB1404441A GB549481A GB 549481 A GB549481 A GB 549481A GB 1404441 A GB1404441 A GB 1404441A GB 1404441 A GB1404441 A GB 1404441A GB 549481 A GB549481 A GB 549481A
Authority
GB
United Kingdom
Prior art keywords
lead
supported
stem
apices
props
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
GB1404441A
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.)
General Electric Co
Original Assignee
General Electric Co
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 to US364043A priority Critical patent/US2288499A/en
Application filed by General Electric Co filed Critical General Electric Co
Priority to GB1404441A priority patent/GB549481A/en
Priority to FR880516D priority patent/FR880516A/en
Publication of GB549481A publication Critical patent/GB549481A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape

Landscapes

  • Drying Of Solid Materials (AREA)

Abstract

549,481. Electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Oct. 31, 1941, No. 14044. [Class 39 (ii)] A high-wattage heatradiating lamp for paintdrying and other drying purposes has a tungsten filament of coiled wire wound and supported to take the form of a series of open-ended triangles 21, 34, 22, supported each at the apices, the whole filament structure taking the form of a triangular prism and occupying the minimum of space. The ends of the wire are connected by hooks to the lead-in conductors 15, 16 which carry between them a glass stem 27 to which hooked props 23, 24 for the support of the apices are secured. A mica reflector is supported by the lead-in wires in the neighbourhood of the pinch. In a modified form, Fig. 6 (not shown) the lead-in wires are parallel and carry in addition to the stem 27 an upper stem to which are attached props for supporting the upper ends of the triangles. Specification 471,301, [Group XXXVI], is referred to.
GB1404441A 1940-11-02 1941-10-31 Improvements in and relating to electric lamps Expired GB549481A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US364043A US2288499A (en) 1940-11-02 1940-11-02 Electric lamp
GB1404441A GB549481A (en) 1941-10-31 1941-10-31 Improvements in and relating to electric lamps
FR880516D FR880516A (en) 1941-10-31 1941-12-30 Improvements to incandescent lamps and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1404441A GB549481A (en) 1941-10-31 1941-10-31 Improvements in and relating to electric lamps

Publications (1)

Publication Number Publication Date
GB549481A true GB549481A (en) 1942-11-23

Family

ID=10033975

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1404441A Expired GB549481A (en) 1940-11-02 1941-10-31 Improvements in and relating to electric lamps

Country Status (2)

Country Link
FR (1) FR880516A (en)
GB (1) GB549481A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1398821A2 (en) * 2002-09-13 2004-03-17 Light Sources, Inc. Germicidal lamp with end of life arc quenching device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1398821A2 (en) * 2002-09-13 2004-03-17 Light Sources, Inc. Germicidal lamp with end of life arc quenching device
EP1398821A3 (en) * 2002-09-13 2006-03-01 Light Sources, Inc. Germicidal lamp with end of life arc quenching device

Also Published As

Publication number Publication date
FR880516A (en) 1943-03-29

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