US2877375A - Incandescent lamp mount structure - Google Patents

Incandescent lamp mount structure Download PDF

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Publication number
US2877375A
US2877375A US540395A US54039555A US2877375A US 2877375 A US2877375 A US 2877375A US 540395 A US540395 A US 540395A US 54039555 A US54039555 A US 54039555A US 2877375 A US2877375 A US 2877375A
Authority
US
United States
Prior art keywords
filament
wires
lead
bulb
mount structure
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 - Lifetime
Application number
US540395A
Other languages
English (en)
Inventor
Charles W Pearson
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 NL211265D priority Critical patent/NL211265A/xx
Priority to DENDAT1067930D priority patent/DE1067930B/de
Priority to NL105575D priority patent/NL105575C/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US540395A priority patent/US2877375A/en
Priority to GB30591/56A priority patent/GB803036A/en
Priority to FR1160801D priority patent/FR1160801A/fr
Priority to FR70618D priority patent/FR70618E/fr
Application granted granted Critical
Publication of US2877375A publication Critical patent/US2877375A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • 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
    • H01K3/06—Attaching of incandescent bodies to mount
    • 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
    • H01K3/08—Manufacture of mounts or stems

Definitions

  • My invention relates to electric incandescent lamps generally, and more particularly to the mount, or filament supporting, structure therefor.
  • the lamp current is decreased and the light output increased. at rated voltage.
  • the life of the lamp is also increased.
  • the decrease in current signifies an increase in filament resistance which, in turn, signifies an increase in filament temperature.
  • the gain may be taken entirely in efficiency'whereby the filament operates at a still, higher temperature and the efliciency is still further increased while. the life remains the same as for the horizontally operated filament.
  • the modification may be such as to maintain the same filament temperature and efliciency as for horizontal operation with attendant further increased life.
  • the present invention, 1 provide a mount structure wherein the elongated lead-in conductors are composed of flexible wires, and the filament and respective adjacent ends of the lead-in wires are interconnected by abridge means to form a unit which is free to vibrate without relative displacement of the ends of the lead-in wires and distortion of the filament.
  • FIG. 1 is a tilted elevation of a lamp having a mount structure comprising our invention
  • Fig. 2 is an elevation -of a mount structure of somewhat modified form.
  • the lamp comprises a glass bulb 1 having a cylindrical neck portion 2 and a re-entrant glass stem 3 sealed to the end thereof.
  • the bulb 1 contains a filling of inert gas such as argon or nitrogen or mixtures thereof at a substantial pressure of several hundred millimeters.
  • a coiled-coil tungsten filament 4 is supported from lead-inwires 5 and 6 so that its axis is coincident with the longitudinal axis of the bulb 1.
  • the said lead-in wires 5' and 6 have portions thereof sealed in a flattened press portion 7 of the stem 3 and extend outwardly to contacts on the base 8.
  • the elongated lead-in wires 5 and 6 extend into the interior. of the bulb along opposite sides of its axis and have their inner ends 9 and 10 bent laterally toward the said axis where they are mechanically and electrically joined to the filament by book portions formed therein and clamped to the filament.
  • the lamp may also contain a conventional heat deflecting disc 11 which is sup-' ported from the stem press 7.
  • the filament and its supporting structure are subject to distortion due to unequal displacement of the long and short lead-in wires 6 and 5, respectively, when subjected to vibration or shock.
  • bridge means mechanically interconnecting the inner ends 9 and 10 of the lead-in wires.
  • the bridge means is composed of a pair of angular wires 12 and 13 which are interconnected by an insulating member 14,'preferably a glass button or rod into which the ends of the wires 12 and 13 are fused and embedded.
  • the opposite ends of the wires 12 and.13 are secured, preferably by welding, to the end portions 9 and 10 of the respective lead-in wires 5 and 6.
  • the filament 4 is preferably further supported by a support wi re 15 having one end embedded in the button 14 and its other end coiled about a midportion of the filament.
  • the rigid bridge member 12, 13, 14 ties together the filament 4 and the ends of the lead-in wires 5 and 6 as a unit which is free to flex about the point of emergence of the said wires 5 and 6 from the stem press 7.
  • the wires 5 and 6 are preferably composed of a springy metal or alloy such as an iron-nickel alloy containing approximately equal proportions of iron and nickel.
  • the bridge wires 12 and 13 and support wire 15 may be made of molybdenum.
  • the mount structure shown in Fig. 2 is similar to that shown in Fig. 1 and the same reference numerals have been employed to designate corresponding elements. It differs in the provision of a supplementary brace wire 16 which is welded at one end to an intermedate point on the longer lead-in wire 6 and has its other end loosely anchored in a hollow glass arbor 17 projecting from the stem press 7 between the lead-in wires 5 and 6.
  • the brace member 16 serves to prevent permanent distortion of the lead-in wires 5 and 6 in certain instances where they may be stressed beyond their elastic limit.
  • lead-in wires 5 and 6 may be annealed and softened at a point adjacent the stem press 7 by the heat attending the operation of forming the press seal 7, and thereby subjected to permanent distortion in the absence of the brace wire 16.
  • an electric incandescent lamp comprising a sealed bulb having a longitudinal axis and containing a filling of inert gas, a mount structure comprising a coiled-coil filament having its longitudinal axis substantially coincident with the said bulb axis, a pair of elongated flexible leadin wires of different lengths anchored in and extending from a wall of said bulb longitudinally into the interior of the bulb and along opposite sides of its axis to the vicinity of respective ends of said filament and thence laterally toward said bulb axis where they are electrically and mechanically joined to the said respective ends of the filament, and rigid bridge means mechanically but not electrically interconnecting the laterally extending portions of said lead-in wires at points adjacent their joints with the respective ends of the filament whereby said bridge means forms a tie with said lead-in wires thereby forming a unit to resist distortion from vibration or shock.
  • an electric incandescent lamp comprising a sealed bulb having a longitudinal axis and containing a filling of inert gas, a mount structure comprising a coiled-coil filament having its longitudinal axis substantially coincident with the said bulb axis, a pair of elongated flexible lead-in wires of different lengths anchored in and extending from a wall of said bulb longitudinally into the interior of the bulb and along opposite sides of its axis to the vicinity of respective ends of said filament and thence laterally toward said bulb axis where they are electrically and mechanically joined to the said respective ends of the filament, and rigid bridge means including a U-shaped wire structure with an intermediate insulating member and located in a plane normal to the plane of said lead wires and mechanically but not electrically interconnecting the laterally extending portions of said lead-in wires at points adjacent their joints with the respective ends of the filament, and a supplementary support wire secured at one end to said insulating member and embracing a midportion of the filament at its other end
  • a mount structure comprising a coiled-coil filament having its longitudinal axis substantially coincident with the said bulb axis, a pair of elongated flexible lead-in wires of different lengths anchored in and extending from a wall of said bulb longitudinally into the interior of the bulb and along opposite sides of its axis to the vicinity of respective ends of said filament and thence laterally toward said bulb axis where they are electrically and mechanically joined to the said respective ends of the filament, and rigid bridge means mechanically but not electrically interconnecting the laterally extending portions of said lead-in wires at points adjacent their joints with the respective ends of the filament whereby said bridge means forms a tie wtih said lead-in Wires thereby forming a unit to resist distortion from vibration or shock, and a supplementary brace wire secured at one end to a point on the longer of said lead-in wires intermediate
  • an electric incandescent lamp comprising a sealed bulb having a longitudinal axis and containing a filling of inert gas, a mount structure comprising a coiled-coil filament having its longitudinal axis substantially coincident with the said bulb axis, a pair of elongatedfiexible lead-in wires of difierent lengths anchored in and extending from a wall of said bulb longitudinally into the interior of the bulb and along opposite sides of its axis to the vicinity of respective ends of said filament and thence laterally toward said bulb axis where they are electrically and mechanically joined to the said respective ends of the filament, and rigid bridge means mechanically but not electrically interconnecting the laterally extending portions of said lead-in wires at points adjacent their joints with the respective ends of the filament whereby said bridge means forms a tie with said lead-in wires thereby forming a unit to resist distortion from vibration or shock, and a supplementary brace wire secured at one end to a point on the longer of said lead-in wires intermediate

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Resistance Heating (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Discharge Lamp (AREA)
US540395A 1955-10-14 1955-10-14 Incandescent lamp mount structure Expired - Lifetime US2877375A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL211265D NL211265A (enrdf_load_stackoverflow) 1955-10-14
DENDAT1067930D DE1067930B (enrdf_load_stackoverflow) 1955-10-14
NL105575D NL105575C (enrdf_load_stackoverflow) 1955-10-14
US540395A US2877375A (en) 1955-10-14 1955-10-14 Incandescent lamp mount structure
GB30591/56A GB803036A (en) 1955-10-14 1956-10-08 Improvements in electric incandescent lamp mount structure
FR1160801D FR1160801A (fr) 1955-10-14 1956-10-12 Montage perfectionné du filament d'une lampe électrique à incandescence
FR70618D FR70618E (fr) 1955-10-14 1956-10-30 Montage perfectionné du filament d'une lampe électrique à incandescence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US540395A US2877375A (en) 1955-10-14 1955-10-14 Incandescent lamp mount structure

Publications (1)

Publication Number Publication Date
US2877375A true US2877375A (en) 1959-03-10

Family

ID=24155275

Family Applications (1)

Application Number Title Priority Date Filing Date
US540395A Expired - Lifetime US2877375A (en) 1955-10-14 1955-10-14 Incandescent lamp mount structure

Country Status (5)

Country Link
US (1) US2877375A (enrdf_load_stackoverflow)
DE (1) DE1067930B (enrdf_load_stackoverflow)
FR (2) FR1160801A (enrdf_load_stackoverflow)
GB (1) GB803036A (enrdf_load_stackoverflow)
NL (2) NL211265A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156843A (en) * 1960-10-27 1964-11-10 Sylvania Electric Prod Incandescent lamp mount
US3210587A (en) * 1962-10-16 1965-10-05 Westinghouse Electric Corp Lamp mount and component therefor
US3210589A (en) * 1960-04-28 1965-10-05 Westinghouse Electric Corp Electric incandescent lamp having filament of partially recrystallized fibrous structure
US4604546A (en) * 1984-07-03 1986-08-05 Gte Products Corporation Incandescent lamp mount structure with shield for evaporation products
US20030062834A1 (en) * 2001-08-21 2003-04-03 Marchand Jacky Paul Lamp with anti-explosion device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19926865C2 (de) * 1999-06-12 2001-07-26 Interheat Inc Thermische Infrarot-Lampe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1247068A (en) * 1913-10-04 1917-11-20 Gen Electric Filament.
US2116384A (en) * 1937-03-02 1938-05-03 Gen Electric Electric lamp or similar device
US2158561A (en) * 1938-06-09 1939-05-16 Hygrade Sylvania Corp Reflector bulb lamp
US2179437A (en) * 1938-08-10 1939-11-07 Arthur R Socolofsky Incandescent lamp
US2181295A (en) * 1939-04-18 1939-11-28 Hygrade Sylvania Corp Reflector bulb lamp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL10193C (enrdf_load_stackoverflow) * 1920-07-23 1923-12-15
US1620487A (en) * 1921-12-19 1927-03-08 Westinghouse Lamp Co Filament support for series lamps
DE638447C (de) * 1933-03-03 1936-11-16 Philips Nv Elektrische Gluehlampe mit zwei Gluehdraehten, insbesondere fuer Kraftwagenscheinwerfer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1247068A (en) * 1913-10-04 1917-11-20 Gen Electric Filament.
US2116384A (en) * 1937-03-02 1938-05-03 Gen Electric Electric lamp or similar device
US2158561A (en) * 1938-06-09 1939-05-16 Hygrade Sylvania Corp Reflector bulb lamp
US2179437A (en) * 1938-08-10 1939-11-07 Arthur R Socolofsky Incandescent lamp
US2181295A (en) * 1939-04-18 1939-11-28 Hygrade Sylvania Corp Reflector bulb lamp

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3210589A (en) * 1960-04-28 1965-10-05 Westinghouse Electric Corp Electric incandescent lamp having filament of partially recrystallized fibrous structure
US3156843A (en) * 1960-10-27 1964-11-10 Sylvania Electric Prod Incandescent lamp mount
US3210587A (en) * 1962-10-16 1965-10-05 Westinghouse Electric Corp Lamp mount and component therefor
US4604546A (en) * 1984-07-03 1986-08-05 Gte Products Corporation Incandescent lamp mount structure with shield for evaporation products
US20030062834A1 (en) * 2001-08-21 2003-04-03 Marchand Jacky Paul Lamp with anti-explosion device
US7005800B2 (en) * 2001-08-21 2006-02-28 Koninklijke Philips Electronics N.V. Lamp with anti-explosion device

Also Published As

Publication number Publication date
GB803036A (en) 1958-10-15
NL105575C (enrdf_load_stackoverflow)
DE1067930B (enrdf_load_stackoverflow) 1959-10-29
NL211265A (enrdf_load_stackoverflow)
FR1160801A (fr) 1958-08-11
FR70618E (fr) 1959-06-05

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