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US2105404A - Incandescent lamp and similar device - Google Patents

Incandescent lamp and similar device Download PDF

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Publication number
US2105404A
US2105404A US116583A US11658336A US2105404A US 2105404 A US2105404 A US 2105404A US 116583 A US116583 A US 116583A US 11658336 A US11658336 A US 11658336A US 2105404 A US2105404 A US 2105404A
Authority
US
United States
Prior art keywords
disc
lamp
bulb
glass
sealed
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
US116583A
Other languages
English (en)
Inventor
Paul O Cartun
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 BE402949D priority Critical patent/BE402949A/xx
Priority to NL40847D priority patent/NL40847C/xx
Priority claimed from US669189A external-priority patent/US2084192A/en
Priority to DEP68969D priority patent/DE627961C/de
Priority to GB13285/34A priority patent/GB433233A/en
Application filed by General Electric Co filed Critical General Electric Co
Priority to US116583A priority patent/US2105404A/en
Application granted granted Critical
Publication of US2105404A publication Critical patent/US2105404A/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
    • H01K1/42—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
    • H01J5/40—End-disc seals, e.g. flat header
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
    • H01J2893/0034—Lamp bases
    • H01J2893/0035—Lamp bases shaped as flat plates, in particular metallic

Definitions

  • My invention relates to electric incandescent lamps and similar devices comprising an electric energy translation element, such as a filament, enclosed or sealed in a bulb or envelope.
  • an electric energy translation element such as a filament
  • the present case is a division of my prior application Serial No. 669,189, filed May 3, 1933, Patent No. 2,084,192.
  • the unitary base structure not only serves as a means for mounting the lamp, but also includes termirials or contacts connected to conductors leading into the bulb through the glass to the translation element inside.
  • the bulb neck or end is sealed to an end member on which the internal mount of the lamp is mounted independently of the attachment of the bulb.
  • This member or disc is provided with engagement means for mounting the lamp.
  • the member or disc becomes an integral part of the lamp,even, indeed, a part of the enclosing envelope itself.
  • the internal mount of the lamp is supported directly by the member or disc, instead of through the medium of the bulb, as heretofore.
  • the current leads need no longer pass through the glass envelope; the usual separate basing operation can be eliminated; and it becomes much easier to locate the translation element accurately and uniformly with reference to the engagement means of the base.
  • Fig. l is a perspective view of a lamp embodying my invention
  • Fig. 2 is a vertical section thereof
  • Fig. 3 is a perspective view partly sectioned of a mounting for the lamp shown in Figs. 1 and 2
  • Fig. 4 is a perspective view of Serial No. 116,583
  • Fig. 5 is a view similar to Fig. 3 of another species of mounting.
  • the lamp shown in Figs. 1 and 2 comprises a glass bulb or envelope 2! abutting endwise and sealed against an apertured sheet metal disc 28 which itself forms the terminal device or base of I the lamp.
  • This disc 23 has securing wings, ears, or blades 29 formed by integral extensions of the metal from the generally circular disc periphery, for engaging suitable mounting means.
  • the internal' lamp mount comprising a filament i0 and lead wires 30, 3! is supported by the disc 28.
  • the wire 30 is welded to the disc, one of whose wings 29 serves as a base contact, and the wire 3
  • the bulb 27 is preferably made of soft glass, and the disc 28 of a metal or alloy (such as an iron alloy containing about twenty-five per cent of chromium) which has the same thermal coefiicient of expansion as glass, and to which glass is readily scalable.
  • a metal or alloy such as an iron alloy containing about twenty-five per cent of chromium
  • the end of the bulb 21 may be pressed while hot against the-heated disc 28 and thereby sealed thereto.
  • the wire 30 may be attached by welding it to the disc, and the wire 3
  • the seal 32 may be formed from the residue of a glass exhaust tube (not shown) sealed to the disc at the opening 23, and sealed off (after use) around the wire 3
  • embedded in the glass 32 is preferably made of material similar to the disc 28, or such as heretofore used for incandescent lamp leads sealed in glass.
  • Fig. 3 shows a mounting device for the lamp of Figs. 1 and 2, comprising an insulative base plate 34 with a central socket hole 35 for the base spur 32, spring contact clips 36 for receiving and gripping the disc wings 29, and a spring finger 31 for abutting against the center contact 33.
  • Current supply conductors are connected to one (at least) of the clips 36 and to the finger 31.
  • To mount the lamp in this device its bottom spur 32 is inserted or pressed home in the hole 35 with the wings 29 intermediate the clips 36, and the lamp is then turned clockwise about the spur 32 as a pivot sufiicientiy to force the wings 29 into the clips, which yield resiliently to receive and grip the wings.
  • the wings or blades 29 underlock with the upper portions of the clips 36.
  • Fig. 4 shows a lamp similar to that of Figs. 1 and 2, but with a larger iron-chromium sheet metal disc 40, having its integral peripheral wings or blades 4
  • Fig. 5 shows another mounting device, with (three) upstanding inward-shouldered spring contact clips 42 amongst which the discs 28 or 40 of Figs. 1 and 4 may be inserted and peripherally engaged. Otherwise, this device is like that of Fig. 3. With this Fig. 5 device, the wings 29 of Fig. 1 would be superfluous, and the wings H of Fig. 4 would act as mere spacers to augment the effective thickness of the discs with reference to its edge engagement under the clip shoulders.
  • the iron chromium alloy which I prefer is one marketed by the Allegheny Steel Company as Allegheny 55", of which the following is a typical percentage-byweight analysis:
  • An electric device comprising a glass bulb; and a metal disc sealed to the end of said bulb as an end wall therefor, and provided with a bottom pivot and contact spur and with securing blades engageable and disengageable by turning the lamp.
  • An electric device comprising a glass bulb; and a metal disc sealed to the end of said bulb as an end wall therefor, and provided with a bottom pivot and contact spur and with peripheral mounting wings retroverted beneath the disc.
  • An electric device comprising a glass bulb; and a metal disc sealed to the end of said bulb as an end wall therefor, and provided with a bottom contact insulated therefrom and with underlocking securing blades.
  • An electric device comprising a glass bulb; and a sheet metal disc abutting and sealed against the end of said bulb, and provided with a bottom spur and contact and with underlocking securing blades formed by extensions of the disc sheet.
  • An electric device comprising a glass bulb; and a metal disc sealed to the end of said bulb as an end wall therefor, and provided with a bottom contact insulated therefrom and with integral peripheral securing means, and a filament in said bulb connected to said disc and to said bottom contact.

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Resistance Heating (AREA)
US116583A 1933-05-03 1936-12-18 Incandescent lamp and similar device Expired - Lifetime US2105404A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE402949D BE402949A (fi) 1933-05-03
NL40847D NL40847C (fi) 1933-05-03
DEP68969D DE627961C (de) 1933-05-03 1934-02-17 Elektrische Gluehlampe mit am Gefaesshals angeschmolzenem Sockel, an welchem zwei Stromzufuehrungsdraehte isoliert voneinander befestigt sind, von denen der eine in einem Glasroehrchen luftdicht gefasst ist
GB13285/34A GB433233A (en) 1933-05-03 1934-05-02 Improvements in and relating to electric lamps
US116583A US2105404A (en) 1933-05-03 1936-12-18 Incandescent lamp and similar device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US669189A US2084192A (en) 1933-05-03 1933-05-03 Incandescent lamp and similar device
US116583A US2105404A (en) 1933-05-03 1936-12-18 Incandescent lamp and similar device

Publications (1)

Publication Number Publication Date
US2105404A true US2105404A (en) 1938-01-11

Family

ID=26814388

Family Applications (1)

Application Number Title Priority Date Filing Date
US116583A Expired - Lifetime US2105404A (en) 1933-05-03 1936-12-18 Incandescent lamp and similar device

Country Status (5)

Country Link
US (1) US2105404A (fi)
BE (1) BE402949A (fi)
DE (1) DE627961C (fi)
GB (1) GB433233A (fi)
NL (1) NL40847C (fi)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047765A (en) * 1959-08-20 1962-07-31 Gen Electric Base assembly for electric lamps
US3118717A (en) * 1960-04-11 1964-01-21 Horan John Joseph Elastic lamps, constructions, mountings and receptacles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL102367C (fi) * 1955-03-08

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047765A (en) * 1959-08-20 1962-07-31 Gen Electric Base assembly for electric lamps
US3118717A (en) * 1960-04-11 1964-01-21 Horan John Joseph Elastic lamps, constructions, mountings and receptacles

Also Published As

Publication number Publication date
DE627961C (de) 1936-03-26
NL40847C (fi)
GB433233A (en) 1935-08-12
BE402949A (fi)

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