US1988290A - Incandescent lamp and similar device - Google Patents

Incandescent lamp and similar device Download PDF

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Publication number
US1988290A
US1988290A US666334A US66633433A US1988290A US 1988290 A US1988290 A US 1988290A US 666334 A US666334 A US 666334A US 66633433 A US66633433 A US 66633433A US 1988290 A US1988290 A US 1988290A
Authority
US
United States
Prior art keywords
bulb
base
glass
shell
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
US666334A
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English (en)
Inventor
Daniel K Wright
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 BE402627D priority Critical patent/BE402627A/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US666334A priority patent/US1988290A/en
Priority to DEP69126D priority patent/DE627962C/de
Priority to FR771643D priority patent/FR771643A/fr
Priority to GB11319/34A priority patent/GB420783A/en
Application granted granted Critical
Publication of US1988290A publication Critical patent/US1988290A/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

Definitions

  • My invention relates to electric incandescent lamps and similar devices comprising an electric energy translation element, such as a illament, enclosed or sealed in a bulb or envelope.
  • an electric energy translation element such as a illament
  • the unitary base structure not only serves as a means for mounting the lamp, but also includes terminals or contacts connected to conductors leading into the bulb through the glass to the translation element inside.
  • the base comprises a metal shell or sleeve, which receives and holds the end of the bulb (with the aid of suitable ce- 90 ment) and is provided with engagement means (such as screw threads or bayonet pins) for securing the base in a socket or othersupport.
  • a base sleeve may itself form one of the base terminals; or' it may not.
  • such a base usually has one or more terminals or contacts exposed at one end thereof, con- ,nected by one or more leads" to the translation device, and suitably insulated from the sleeve.
  • bases have been used, some of which differ from the more usual illustrative types just described. For example, there .are double ended tubular lamps, with a base or terminal device at each end.
  • the internal "mount" of the lamp or the like is mounted on the base or terminal device itself, or a portion thereof, independently of the attachment of the bulb to the base.
  • the mount is supported directly by such base or device, instead of through the medium of the bulb, as heretofore.
  • the glass bulb wall may be sealed directly to the base or terminal device by fusion or thermal softening, so that the base becomes an integral part of the lamp-even, in-
  • FIG. 1 is a perspective view of a lamp conveniently embodying my invention
  • Fig. 2 is a vertical sectional view through a portion thereof, illustrating a form of construction representing one species of my invention
  • Figs. 3, 4 and 5 are similar sections illustrating other species of the invention
  • Fig. 6 is a vertical sectional view illustrating yet another species.
  • the device shown in Fig. 1 is an incandescent electric lamp having as'its electric energy translation element a filament 10 within a glass bulb 11, connected between wires 12 and 13 attached to its ends, and additionally supported, at intermediate points, by wires 14 whose ends are fused into a glass head 15, itself fused to the wire 13.
  • a brace wire 16 fused into the head 15 at one end is welded at its other end to the wire 12.
  • the wires 12, 13 not only support the filament 10, but also serve as its current leads.
  • the mount comprising the filament 10 and its supporting means just described, is attached directly to a base 1'1, here of an Edison or screw type, having a sheet metal screw shell 17a that serves as one base contact. and having another base contact 18 exposed at its lower end, but insulated from the shell.
  • the seat 17b may be made of any radial width desired to enable the base shell 17a to take a bulb neck that will admit a filament or a mount" larger than the main (threaded) portion of the shell 17a.
  • the lip 17c affords additional adhesion area for the glass and protects the joint, but is of such small height (e. g of a magnitude comparable to the thickness of the glass) that it does not shade or cut off useful light from the filament 10.
  • the wire 12 may be attached by welding to a diaphragm or web 17d across the interior of the shell, at its bottom.
  • the wire 13 extends to an opening in this portion 17d and is embedded and secured in a fused body of glass which closes and seals the opening, but the end of the wire 13 may be exposed outside to serve as a center contact 18.
  • the seal 18' is here shown as a tip formed by the residue of a glass exhaust" tube 19 sealed to the shell bottom 17d, and sealed off (after use) around the wire 13.
  • the portion of the wire 13 embedded in the glass is preferably made of material similar to the shell 17a, or such as heretofore used for incandescent lamp ieads sealed in glass.
  • the upper edge of the base shell 23 tapers down to a very thin section about which the glass of the bulb wall 11 is sealed.
  • materials for bulb and shell'are not greatly restricted; e. g., to a shell 23 of copper, which wets well to glass, may be sealed a bulb 11 of hard glass whose thermal coefiicient of expansion is much lower than that of copper.
  • the thin edge section of theshell 23 permits such a combination.
  • the shell 23 has an inward-recessed bottom with a central opening surrounded by an outstanding flange or nipple 24, whose wall tapers to a very thin edge.
  • a metal cap 25 with a corresponding tapered edge is attached to the nipple 24 by a ring of glass 26 sealed over the edges of both parts. In its bottom, the cap 25 has a central 'hole 27, adapted to serve as an exhaust opening.
  • the mount wire 12 is attached to the shell 23, about as in Figs. 2 and 3, while the lead 13 extends down into the cap 25 and is there bent around the hole 27 and secured by solder 28.
  • Fig. 6 has a bayonet type of base instead of a screw base, as in Figs. 1-5, otherwiseit most nearly resembles Fig. 2.
  • the lower end of the lamp bulb 11 is sealed to the inside of a shell 31 provided with bayonet pin projections 32, and made of special metal such as that employed for the shell 17 in Fig. 2.
  • the bottom web or -diaphragm 33 of the shell 31 has two openings in which are sealed the fused glass bcdiesor beads 34-34.
  • the two mount .wires 12, 13 are embedded and secured in the beads 3434, with their ends exposed outside to serve as end contacts. Either (or both) of the beads 34-34 may be formed by fusing down the residue of an exhaust tube (not shown) as described above in connection with Fig. 2.
  • the iron chromium alloy which I prefer is one marketed by the Allegheny Steel Co. as Allegheny 55, of which the following is a typical percentage-by-weight analysis:
  • An electrical device comprising a bulb; a unitary base structure or termina device, by which the lamp is mounted,'sealed to the wall of said bulb and having an exhaust opening for the bulb therethrough; and a mount in said bulb, including an electric energy translation element with its supporting means and current lead wires, mounted on said base structure independently of the attachment of the bulb to said base structure with one of the lead wires extending to said exhaust opening; and a fused seal sealing said exhaust opening and securing said current lead wire.
  • An electrical device comprising a bulb; a unitary base structure or terminal device, by which the lamp is mounted and which embodies its contact terminals, sealed to the wall of said bulb and having an exhaust opening for the bulb through one of said contact terminals; and a mount in said bulb, including an electric energy translation element and its supporting means and current lead wires, mounted on said base structure independently of the attaclunent of the bulb to said base structure, with one of said lead wires extending to said exhaust op'en-' ing; and a fused seal securing said current lead -76 wire to the apertured contact terminal and sealing the exhaust opening.
  • An electrical device comprising a unitary base having an exhaust opening in its bottom; a bulb or envelope sealed to said base structure; a filament with supporting means therefor mounted on said base structure independently of the bulb, and with a lead wire extending through said exhaust opening; and a residue of exhaust tubing sealed to the edge of said opening and also fused and sealed around said lead, but leaving the end of the latter exposed as an external contact.
  • An electrical device comprising a metal base shell; a disc of metal to which glass is more readily sealable attached to said shell; a glass bulb or envelope abutting endwise against said disc and sealed thereto; and a filament with supporting means therefor mounted on said metal base shell independently of the bulb.
  • An electrical device comprising a metal base shell; a disc of metal to which glass is more readily sealable attached to said shell and having an upstanding lip; a glass bulb or envelope abutting endwise against said disc and sealed thereto and to the inside of said lip; and a filament with supporting means therefor mounted on said metal base shell independently of the bulb.
  • An electrical device comprising a metal base structure, including a shell with an inward flanged bottom opening, and an apertured bottom disc of metal to which glass is more readily sealable attached and sealed to the flange around said bottom opening; a glass bulb or envelope sealed to said base structure; a body of glass sealed to said bottom disc at its aperture and sealing the latter; and a filament with supporting means therefor mounted on said metal base shell independently of the bulb, including an external contact lead sealed through said body of glass.
  • incandescent lamps or the like comprising a base member having an aperture therethrough and a glass exhaust tube having an end sealed to the rim of said aperture, which comprises attaching a mount comprising an energy translation element and a plurality of supporting lead wires to said base member, one of said lead wires extending into said exhaust tube, sealing the end of a glass bulb to said base member, and after use of said exhaust tube, fusing and sealing it around said lead wire.

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
US666334A 1933-04-15 1933-04-15 Incandescent lamp and similar device Expired - Lifetime US1988290A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE402627D BE402627A (enrdf_load_stackoverflow) 1933-04-15
US666334A US1988290A (en) 1933-04-15 1933-04-15 Incandescent lamp and similar device
DEP69126D DE627962C (de) 1933-04-15 1934-03-15 Elektrische Gluehlampe mit am Gefaesshals angeschmolzenem Sockel, an welchem zwei Stromzufuehrungsdraehte isoliert voneinander befestigt sind, von denen der eine von einem Glasroehrchen luftdicht gefasst wird
FR771643D FR771643A (fr) 1933-04-15 1934-04-11 Perfectionnements aux lampes à incandescence et articles similaires
GB11319/34A GB420783A (en) 1933-04-15 1934-04-14 Improvements in and relating to electric lamps and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US666334A US1988290A (en) 1933-04-15 1933-04-15 Incandescent lamp and similar device

Publications (1)

Publication Number Publication Date
US1988290A true US1988290A (en) 1935-01-15

Family

ID=24673762

Family Applications (1)

Application Number Title Priority Date Filing Date
US666334A Expired - Lifetime US1988290A (en) 1933-04-15 1933-04-15 Incandescent lamp and similar device

Country Status (5)

Country Link
US (1) US1988290A (enrdf_load_stackoverflow)
BE (1) BE402627A (enrdf_load_stackoverflow)
DE (1) DE627962C (enrdf_load_stackoverflow)
FR (1) FR771643A (enrdf_load_stackoverflow)
GB (1) GB420783A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1030455B (de) * 1951-05-25 1958-05-22 British Thomson Houston Co Ltd Elektrische Gluehlampe fuer Scheinwerfer
US3020437A (en) * 1959-02-09 1962-02-06 John J Horan Elastic lamps, principles, constructions, mountings and methods
US3218500A (en) * 1959-06-29 1965-11-16 Hunting Eng Ltd Plastic material covered lamp with panel push-fit mounting means
US3265922A (en) * 1960-10-24 1966-08-09 Philips Corp Electric lamp
US5698935A (en) * 1994-04-25 1997-12-16 Leviton Manufacturing Co., Inc. Lampholder system with mogul base

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE751305C (de) * 1938-08-14 1953-02-23 Telefunken Gmbh Stromdurchfuehrung fuer elektrische Gluehlampen und Entladungsgefaesse

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1030455B (de) * 1951-05-25 1958-05-22 British Thomson Houston Co Ltd Elektrische Gluehlampe fuer Scheinwerfer
US3020437A (en) * 1959-02-09 1962-02-06 John J Horan Elastic lamps, principles, constructions, mountings and methods
US3218500A (en) * 1959-06-29 1965-11-16 Hunting Eng Ltd Plastic material covered lamp with panel push-fit mounting means
US3265922A (en) * 1960-10-24 1966-08-09 Philips Corp Electric lamp
US5698935A (en) * 1994-04-25 1997-12-16 Leviton Manufacturing Co., Inc. Lampholder system with mogul base

Also Published As

Publication number Publication date
FR771643A (fr) 1934-10-13
GB420783A (en) 1934-12-07
BE402627A (enrdf_load_stackoverflow)
DE627962C (de) 1936-03-26

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