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GB1366987A - Filament mount structures for use in electric incandescent filament lamps - Google Patents

Filament mount structures for use in electric incandescent filament lamps

Info

Publication number
GB1366987A
GB1366987A GB693472A GB693472A GB1366987A GB 1366987 A GB1366987 A GB 1366987A GB 693472 A GB693472 A GB 693472A GB 693472 A GB693472 A GB 693472A GB 1366987 A GB1366987 A GB 1366987A
Authority
GB
United Kingdom
Prior art keywords
filament
wires
tubular members
members
support
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
GB693472A
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 Company PLC
Original Assignee
General Electric Company PLC
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 General Electric Company PLC filed Critical General Electric Company PLC
Priority to GB693472A priority Critical patent/GB1366987A/en
Priority to JP48114638A priority patent/JPS4995201A/ja
Publication of GB1366987A publication Critical patent/GB1366987A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body

Landscapes

  • Resistance Heating (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

1366987 Electric incandescent lamps GENERAL ELECTRIC CO Ltd 2 Feb 1973 [15 Feb 1972] 6934/72 Heading H1F A filament mount structure comprises one or more filaments 6 each having a plurality of sections and each being supported within a respective framework 5 consisting of one or more pairs of parallel support wires 7, 8 interconnected at opposite ends by respective insulating bridges 9, 10 carrying anchor wires 12 which support different sections of the filament, each bridge having embedded therein at least one pair of tubular metal members 17 through which a pair of support wires extend and the tubular members of at least one of the bridges being rigidly secured, e.g. by welding, to the support wires. The tubular members are preferably tungsten wire coils and each bridge consists of two quartz glass rods press-sealed together in side-by-side relationship with the tubular members and the anchor wires in between. When first assembled the tubular members are a sliding fit on the support wires so that the filament can be accurately positioned relative to the outer extremities of the base pins 4 before the members and the wires are secured together. In a modification the lower bridge 10 may be provided with additional tubular members in which the anchor wires 12 can slide to compensate for expansion of the filament in use.
GB693472A 1972-10-11 1972-10-11 Filament mount structures for use in electric incandescent filament lamps Expired GB1366987A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB693472A GB1366987A (en) 1972-10-11 1972-10-11 Filament mount structures for use in electric incandescent filament lamps
JP48114638A JPS4995201A (en) 1972-10-11 1973-10-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB693472A GB1366987A (en) 1972-10-11 1972-10-11 Filament mount structures for use in electric incandescent filament lamps

Publications (1)

Publication Number Publication Date
GB1366987A true GB1366987A (en) 1974-09-18

Family

ID=9823519

Family Applications (1)

Application Number Title Priority Date Filing Date
GB693472A Expired GB1366987A (en) 1972-10-11 1972-10-11 Filament mount structures for use in electric incandescent filament lamps

Country Status (2)

Country Link
JP (1) JPS4995201A (en)
GB (1) GB1366987A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009362A1 (en) * 1979-03-14 1980-09-25 Philips Nv ELECTRIC BULB

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPQ106699A0 (en) * 1999-06-18 1999-07-08 Copper Refineries Pty Ltd Cathode plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009362A1 (en) * 1979-03-14 1980-09-25 Philips Nv ELECTRIC BULB

Also Published As

Publication number Publication date
JPS4995201A (en) 1974-09-10

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee