US2098080A - Incandescent lamp and the like - Google Patents

Incandescent lamp and the like Download PDF

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Publication number
US2098080A
US2098080A US57196A US5719636A US2098080A US 2098080 A US2098080 A US 2098080A US 57196 A US57196 A US 57196A US 5719636 A US5719636 A US 5719636A US 2098080 A US2098080 A US 2098080A
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United States
Prior art keywords
base
shoulder
socket
glass
envelope
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Expired - Lifetime
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US57196A
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English (en)
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Daniel K Wright
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General Electric Co
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General Electric Co
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Publication date
Priority to NL49343D priority Critical patent/NL49343C/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US57196A priority patent/US2098080A/en
Priority to FR815758D priority patent/FR815758A/fr
Priority to GB207/37A priority patent/GB471301A/en
Application granted granted Critical
Publication of US2098080A publication Critical patent/US2098080A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/74—Devices having four or more poles, e.g. holders for compact fluorescent lamps
    • H01R33/76—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket
    • H01R33/7685—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket having internal socket contact by abutting
    • 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
    • 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
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/09—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for baseless lamp bulb
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/21—Utilizing thermal characteristic, e.g., expansion or contraction, etc.
    • Y10T403/217—Members having different coefficients of expansion

Definitions

  • My invention relates to electric energy translation devices, such as incandescent or other electric lamps, comprising an energy-translating unit enclosed or sealed in a bulb or envelope,
  • the invention is especially suitable and advantageous for translation devices in which considerable amounts of heat are developed, such as high wattage electric lamps with incandescent tungsten filaments as energytranslating elements.
  • the invention is especially concerned with mounting and current supply features of electric lamps and other translating devices, including the provisions for fluid or vacuum tightness where the conductors pass through the enclosing bulbs or envelopes.
  • My present invention involves a base which, in general, forms part of the bulb or sealed envelope of the. device, and embodies standardized seating means for engaging corresponding fixed standardized seating means of the socket or the like.
  • seating means of the bulb or of its base portion
  • Terminal devices with securing and contact means quite separate and distinct from the aforesaid seating shoulder of the base provide for holding the base shoulder properly seated against a fixed annular socket shoulder, and for making the electrical connections.
  • the base portion or, indeed, the whole of 5 the bulb or envelope is preferably of heat-resistant material, such as metal or high-melting glass like Pyrex and various borosilicate glasses.
  • the contact terminal devices and their attachment to the base also present features of novelty, 10 which may, indeed, be useful in other types of construction besides those here shown and described.
  • Fig. 1 is a side view of an incandescent electric lamp conveniently embodying my invention
  • Fig. 2 shows a vertical section through a socket taken as indicated by the line and arrows 2-4 in Fig. 6, with a lamp similar to that of Fig. l therein
  • Fig. 3 shows a vertical section through the base of Fig. 1 before its attachment to the rest of the bulb
  • Fig. 4 is a similar view illustrating a stage in the attachment of contact terminal devices to this base
  • Fig. 5 is a side view'illustrating a stage in the manufacture of the contact terminal shown in Figs. 1-4
  • Fig. 6 is a plan view of the socket shown in Fig. 2
  • Fig. 1 is a side view of an incandescent electric lamp conveniently embodying my invention
  • Fig. 2 shows a vertical section through a socket taken as indicated by the line and arrows 2-4 in Fig. 6, with a lamp similar to that of Fig. l therein
  • Fig. 3 shows a
  • Fig. 9 is a side view of a lamp with contact terminal devices somewhat different from those shown in Figs. 1-5;
  • Fig. 10 is a bottom plan view of the lamp;
  • Fig. 11 shows a fragmentary vertical section through the base shown in Fig. 9, on a larger scale;
  • Fig. 12 shows a vertical section through the base before its attachment to the rest of the bulb;
  • Fig. 13 is a similar view illustrating a stage in the attachment of contact terminal devices to the base;
  • Fig. 9 is a diagram including plan and edge views of an engagement or locking device and a .side view of a contact device shown in Fig. 6, illustrating their operating interrelations;
  • Fig. 8 is a bottom plan view of the socket shown in Figs. 2 and 6.
  • Fig. 9 is a side view of a lamp with contact terminal devices somewhat different from those shown in Figs. 1-5;
  • Fig. 10 is a bottom plan view of the lamp;
  • Fig. 11 shows a
  • FIG. 14 is a side view at right angles to Figs. 9, 12 and 13, partly in section, illustrating a stage in the manufacture of one of the contact terminal devices, its skirt being shown in section;
  • Fig. 15 is a plan view of one of the parts shown in Fig. 14; and
  • Fig. .16 shows a vertical section through a socket and adapter device for the lamp and base of Figs. 1-5.
  • Fig. 17 is a fragmentary side view oi a lamp with contact terminal devices somewhat different from those in Figs. 1-6 and 9-14, with a corresponding socket shown in dotted lines; and
  • glass envelope or-bulb 22 containing arr:electric; translation unit. 2
  • the translation unit 21 is preferably mounted on the base 24 by attachment of its supporting structure 23 to the inward-extending ends of the terminals 25, 25 and the filament 22 is connected in'series between them.
  • the base 24 has a ''(standardized) annular seating shoulder 29.
  • the corner between the bottom and peripheral surfaces may be rounded off somewhat, as shown, without impairing the seating and aligning functions of the shoulder 29.
  • the seating shoulder 29 is shown engaged with a corresponding (standardized) annular seating shoulder 30, here of reentrant, rahbeted conformation, at the open mouth of the socket 32.
  • the rigid contact and securing studs 21, 21 of the devices 25, 25 extend down into the socket 32.
  • the base 24 is made up as a separate piece, preferably of heat-resistant glass more or less like Pyrex, and is fused to the lower end of the bulb 20. This is done, of course, after the translating unit 2
  • Figs. 3 and 4 show the separate glass base-piece 24 before sealing to the rest of the bulb 20: it may be provided with an external lip or flange at its outer edge, to facilitate the attachment or "sealing in, as it may be called.
  • Fig. 3 shows the base-piece 24 after attachment of the terminal devices 25, 25 thereto, and with a glass exhaust-tube also attached at its exhaust opening 26.
  • Fig. 4 shows the base-piece 24 assembled with the terminal devices 25, 25 before their attachment, and also shows the exhaust tube, separate but in position for fusion to a projecting lip around the exhaust opening 26.
  • the terminals 25, 25 have around them thin sealing flanges 33, 33, of flaring, cup-like, conoidal form, whose outer edges are attached to the base 24 around the holes 28, 28 by fused glass seals 34, 34, making gas and vacuum tight joints.
  • the seals 34, 34 may be formed by fusing the glass of the base itself to the edges of the skirts 33, 33, as shown in Fig. 3.
  • Fig. 3 For this purpose, as shown in Fig.
  • the base 24 may be initially provided with projecting lips or annular flanges 35, 35 around its holes 28, 28, of such size as almost to fit into the skirts 33, 33: indeed, the flanges or hollow bosses 35, 35 are shown with rabbets at their outercornersrinwhich t edges-otthe a. "can just sent, so 'asto assure proper assembly ndxe xnm n for l -51a suitab e iic. 1 61-1- dashlinesinliiggh m I to ire the proper relation during.
  • the sealing flanges or skirts 33, 33 may be of die-stamped or spun sheet metal. They should, of course, present surfaces which the fused or softened glass will wet" and stick to, and should preferably have the same expansion as the glass, as near as may be. For heat-resistant glass of the character hereinbefore indicated, these conditions can be fulfilled with skirts of an alloy known as Fernico, described in U. S. Patent No. 1,942,260, granted Jan. 2, 1934, to H. Scott. The skirts 33, 33 should be thin enough to yield somewhat to any stress from the glass under-temperature changes,say about .01 inch thick for skirts some 5 inch in diameter and of the proportions shown.
  • skirts also afford a limited resiliency that cushions the shock of an accidental blow against a stud 21, for example, and-prevents breakage at the seal 34 or elsewhere in the glass.
  • the projecting studs 21, 21 are rigid with the,base 24 for all practical purposes. While it is unnecessary to taper the edges of the skirts 33, 33 to the extreme thinness resorted to when hollow copper terminals are sealed to glass, moderate tapering is advisable, if there is any material difference between the expansion of the glass and the skirt material.
  • slnrts of Femico whose coefflcient is about 47 l0
  • slnrts of Femico whose coefflcient is about 47 l0
  • skirts 33, 33 and the main terminal members need not be originally integral,or even of the same metal,--but may be originally separate parts united and sealed together by gas and vacuum tight joints, as of fused metal. Joints of a soldered or brazed type are in some respects preferable.
  • skirts 33, 33 of Fernico it is advantageous to make the main terminal members of iron, and to braze the skirts to them with copper. Close to each skirt 33, as shown in Figs.
  • each terminal 25 has an engagement or securing shoulder 38, shown as formed by a or approaching fusion of the glasaand endwlse pressure is applied to the terminals 25, ⁇ 25 so asto .base 24 itself, as shown..--
  • adhesion of the- I reduction 39 in its diameter At the skirt 22; the terminal member is also reduced in diametenon a bevel, thus aii'ording a shoulder 49- thatdetermines the position oi the skirt on the member.
  • the round hole in the bottom of the skirt 22 has .an' inturned sloping flange 4i, conformable to the slope of the bevel at 40 and afi'ording an increased area and ampler strength for the brazed joint.
  • the seal of fused metal 35 is clearly shown; in Fig. 5, the skirt 33 and the main terminal member are shown assembled ready for brazing, and a ring 21 of copper wire (or other suitable brazing metal) is shown fitting around the main member against (above) the outer, convex side of the skirt 22.
  • the assembled parts being suitably held in the relation shown in Fig.
  • the socket 22 comprises a hollow insulating body 44 whose open mouth has the reentrant or rabbeted seating shoulder 20 already referred to.
  • the socket 32 has engagement means 45 arranged substantially in a plane parallel with the shoulder 25, but belowit, and preferably resiliently yielding. While the engagement means 45 might also serve ior'electrical contact to connect the translating device in circuit, separate contacts 41, 41 are shown for this purpose in Figs. 2 and 6, arranged below the engagement means 45 to engage the large lower portions of the studs 21, 21.
  • the engagement means 45 can also serve, in the present instance, to shield the contacts 41, 41 against premature or improper engagement with the studs 21, 21,--or, indeed, against being accidentally bridged or short-circuited in any way, as by a tool in the hands of a careless person.
  • the engagement means 45 of (springy) metal
  • its portions pertaining to the individual studs 21, 21 are shown as separate parts in Fig. 6 (where they appear in plan), and are hereinafter referred to as engagement members 45, 45. They are electrically isolated or insulated from each other and from all the electrical parts of the socket.
  • each engagement member 45 is secured or anchored by a screw bolt 49 to the insulating structure 44 of the socket.
  • the free end of each member 45 has therein a key-hole opening 49, curved concentrically with the axis of the socket seat 30. From the large circular end of this opening 49, which is adapted to take the large portion of a contact stud 21, a narrower arcuate slot extends toward the anchored end of the member 45, this slot being just wide enough to take the intermediate portion 39 of the stud 21, above its shoulder 38.
  • each member 45 has a radially extending sloping-sided bottom hump or downward off-set 5
  • the contact means 41 for each stud 21 engages the stud laterally with some resilient pressure, and on both sides.
  • Two pairs oi opposed resiliently yielding contact laws or fingers 41, 41 are shown for each stud 21, mounted one pair above another on the upstanding arm of a metal L-bracket 52, and forming, as it were, a U-clip,-best shown inFigs. 6 and 7.
  • Thelower arm of bracket 52 is secured to the insulating structure of the socket by a screw 52.
  • the two pairs of I contact jaws or fingers 41, 41 may be formed of one piece of springy sheet metal bent to a, U or yoke shape, with the legs of the U slotted almost to its connective member.
  • the connective member of the U abuts against the upright arm of bracket 52 and is secured thereto by rivets 54, 54.
  • the resiliently yielding contacts 41, 41 also serve as a means for yieldingly locking the base 24 against reverse (counterclockwise) turning, after the studs 21, 21 have been properly engaged with the contacts.
  • the opposed spring fingers 41, 41 that coact with each stud 21 are oppositely bent to aflord arcuate recesses for receiving and gripping around the stud, as well as humps at the free ends of the fingers diverging on a bevel, so
  • the bottom of the insulating socket body 44 is recessed to accommodate flat metal connectors 55, 55, which are secured in place and electrically connected to e the contact brackets 52, 52 by the screws 52, 53, and are provided with binding screws 56, 55 for the attachment of current supply wires (not shown).
  • Nuts 51, 51 for the screw bolts 45, 48 that secure the engagement members 45', 45 are shown housed in correspondingly shaped recesses in the bottom of the socket structure 44.
  • Holes 50, 50 for screws or bolts (not shown) to secure the socket 32 to a support (not shown) are also illustrated in Figs. 2 and 5.
  • the socket 22 has index marks 52, 62 in line with the stud-receiving large por-,
  • the members 45, 4! completely shield the recesses of the socket body 44 which house the contacts 41, 41 and receive the studs 21, 21, making it impossible to insert the latter far enough for the base shoulder 29 to reach the socket shoulder 30 except through the large portions of Inserting the studs 21, 21 through the keyholes 49, 49, it is impossible to bring the studs against both contacts 41, 41 at the same time,- no matter how much askew the studs may be in the keyholes,except by turning the lamp and base 24 clockwise relative to the socket 32.
  • its supporting structure includes a pair of metal wire uprights 23, 23 facing one another, with a pair of insulating refractory cross-bars 63, 63 spanned betwen them.
  • metal wires 64 extending through holes in the cross-bars 63, 63 and having their ends bent over toward or against the uprights, and (in the latter case) Welded thereto.
  • the coiled filament 22 is shown arranged in a series of co-planar parallel lengths in the rectangular frame formed by the supporting uprights 23 and cross-bars 63, with the bends or connections between lengths supported by refractory metal hooks 65 whose ends are fused into the cross-bars.
  • the laterally extending ends of the filament 22 are welded to the supports 23, 23.
  • a suitable jig .(not shown) a definite, predetermined, standard position of the filament 22 relative to the base shoulder 29 is assured when the supports 23, 23 are attached to the terminal devices as just described.
  • the seating shoulder 30 of the socket 32 is of reentrant or rabbeted conformation, while the seating shoulder 23 of the base 24 is a simple external angle.
  • the-seating shoulder of the base 24b is reentrantly formed by a rabbet 241) at the-angle between the fiat bottom and the (conical) periphery of the base,
  • the socket shoulder consists of the upper edge or inner corner angle 33b of a socket shell 32b.-which may also be the screw shell of an Edison screw base adapter-10, Figs. 9 and 16.
  • the base shoulder 23b preierablyengages laterally against the upper socket edge 30b only at three isolated (equally spaced) points, consisting of protuberances 1
  • the contact terminal devices 26b, 251) shown in Figs. 9-14 are also different: i. e., the main terminal members have the form of fiat strips,
  • each strip-like main terminal member is reduced in width and shouldered at 40b, adjacent the skirt 33b.
  • the skirt 33b has an elongated hole that readily takes the reduced portion of the main terminal member,--which as shown in Fig. 14 extends from the shoulder clear to the end of the member that lies inside the bulb in the complete lamp.
  • the shoulder lb-or each such shoulder since there are two distinct shoulders in this instanceslopes at an angle or on an arc corresponding to the adjacent or abutting spherical surface of the skirt 33b.
  • an oblong rectangular ring 311) such as shown in Fig. 16, is fitted around the large part of the main member against and above the outer, convex side of the skirt 33b, and fused down into the cracks as already described in connection with Fig. 5, thus brazing the skirt rigidly to the reduced portion of the terminal strip and its shoulders 40, 4ll,'as shown at 36b in Figs. 13 and 14.
  • the lamp and its base 24b and terminal devices 25b, 2511 may be like those illustrated and described in Figs. 1-5, and may be similarly fabricated.
  • Its supporting uprights 23b, 2312 are of channel section, and fit on therectangular upper or inner ends of the terminal devices 25b, 25b, and are welded or secured by crimping in the channel sides on the ends of the members, as at 3512, 65b,-or in both ways,as in Fig. 1.
  • the wires 34b which hold the ends or the cross-bars 63, 63 engaged in the channelled uprights 23b, 23b and abutting against the channel webs may extend through holes in the latter and be bent over at their ends, instead of being welded to the uprights as in Fig. 1.
  • the adaptersocket device shown in Fig. 16 has parallel guideways 1
  • the balls 13, 13 and their springs 15, are housed in tubular sheet metal "capsules 18, 16 whose .fianged mouths may be welded to the sides of the 1
  • the center contact disc 80 is soldered, brazed, or otherwise secured to this end of the tube 'II'. This center contact 80 is shown with a securing tab or tang 8
  • the lower end of the other guide tube 12 abuts against the inturned shell flange I8 and is'soldered, brazed, orotherwise secured thereto.
  • the adapter may be used to mount the lamp in an ordinary Edison screw socket, such as the mogul socket heretofore used for ,many high-wattage lamps.
  • Fig. 17 shows a lamp with modified metal terminal devices He, He, whose rigid flat contact and securing studs 21c, 21c have their ends bent radially outward at 2.0, 28c into a common plane parallel with that of the standardized seating shoulder "c of the base 240.
  • the reentrant or rabbeted base shoulder 290 For coaction with the reentrant or rabbeted base shoulder 290, the
  • socket 320 shown in Figs. 17 and 18 has a corresponding standardized rabbeted shoulderjtc at its open mouth; and for coaction with the outturned stud ends 180, 280, the engagement and contact means of the socket 320 consist of circumferentially extending metal leaf-spring members 84, 84. each secured or anchored at one end to the bottom of the insulating socket body by a screw II. The free end of each spring 84 is bent upward on a bevel, and near the free end,
  • the stiffness of the springs 04, N is such that when the stud ends 28c, 200 are thus engaged under and interlocked with them, the base shoulder 20c is held firmly seated against or in the rabbeted socket shoulder 300.
  • the lamp is firmly and accurately held with its translation element in just the desired predetermined position relative to the socket 320 and any associated reflector (not shown), and is yieldingly locked. Socket openings in the studs 21c, 210 are unnecessary, since the outturned ends 28c, 20c take their place as engagement means.
  • An electric translating device comprising a glass bulb or envelope, with a glass base forming part of the envelope wall and having an annular seating shoulder for e g i a corresponding socket shoulder; substantially rigid-contact teraocaoso minaldevices sealedbyfusion to saidbasepartof the envelope-wall and forming electrical connections to the inside ofthe envelope, and proof the envelope wall andhaving a seating shoulder for engaging a corresponding socket shoulder; metal contact terminal devices comprising rigid members extending through holes in the base and having around them thin resilient flared skirts with their edges sealed to the base by fused glass seals, so that the skirts permit slight relative rocking movement as between the envelope and said members and protect said seals, and also having end portions extending inward into the envelope and contact stud portions projecting outward from the basein the direction of the axis of said seating shoulder; and an energy-translating unit in said envelope mounted on the inward-extending ends of said members, with its translating element in definite, predetermined position relative to said seating shoulder of said base.
  • An electric translating device comprising a glass bulb or envelope, and a base forming part of the envelope wall and having a seating shoulder for engaging a corresponding socket shoulder; metal contact terminal devices comprising members extending through holes in the base and having around them thin metal skirts with their edges sealed to the base by fused glass seals, and also having end portions extending inward into the envelope and contact stud portions projecting outward from the base in the direction of the axis of saidseating shoulder; and an energy-' der for engaging a corresponding socket shoul-- der; metal contact terminal devices comprising members extending through holes in the base and having around them thin skirts with their edges sealed to the base by fused glass seals, and also having hollow end portions extending inward into the envelope and contact stud portions projecting outward from the base in the direction of the axis of said seating shoulder; and an energy-translating unit in said envelope including supports having their ends telescoped and secured in the hollow inward-extending end portions of said members, with the energy-translating element of said unit in definite
  • An electric translating device comprising a glass bulb or envelope, and a base forming part of the envelope wall and having a seating shoulder for, engaging a corresponding socket shoulder; substantially rigid contact terminal devices sealed by fusion to said base part of the envelope wall, forming electrical connections to the inside of the latter and projecting externally from the latter as cylindrical contact studs in the direction of the axis of said seating shoulder, and reduced in diameter adjacent the base so as to aiford securing shoulders facing toward the same; and an energy-translating unit mounted in said envelope and connected to said terminal devices, with its energy-translating element in definite, predetermined position relative to said seating shoulder of said base.
  • a glass base-piece for forming part of the bulb or envelope Wall of an electric translating device, adapted to be sealed by fusion to the glass wall of a bulb or envelope of such a device and having an annular seating shoulder for engaging a corresponding shoulder of a socket; a substantially rigid contact terminal device affording electrical connection through said base piece and provided with engagement means for coacting with corresponding engagement means of the socket to hold the said base shoulder against the socket shoulder; and a fused glass seal forming a fluid-tight joint between said contact terminal device and said base-piece.
  • a metal contact terminal device for a bulbwall base comprising a rigid member adapted to extend through the base and a flared skirt around said member with outer edge adapted for sealing to the base by a fused glass seal, and also including a portion at one side of said skirt for the attachment of electric translating device supports and engagement means at the other side of said skirt for engaging corresponding means in a socket for the said base.
  • a metal contact terminal device for a bulbwall base comprising a rigid post member adapted to extend through the base and a thin flared skirt.
  • a metal contact terminal device for a bulbwall base comprising a rigid post member adapted to extend through the base and a resilient flared skirt of Fernico around said member sealed and attached thereto with a joint of fused metal.
  • a metal contact terminal device adapted to extend through a bulb-wall base and comprising a cylindrical member including a contact stud portion and an adjacent reduced portion .aifording a securing shoulder, and a flared skirt around said member spaced from said securing shoulder, with outer edge adapted for sealing to the base by a fused glass seal.
  • a metal contact terminal device for a bulbwall base comprising a member adapted to extend through the base and having a reduced portion afiording a shoulder, a metal cup or flare around said member at said shoulder, with outer edge adapted for sealing to the base by a fused glass seal, and a fused metal seal attaching said flare to the reduced portion and the shoulder of said member with a fluid-tight joint.
  • a metal contact terminal device for a bulbwall base comprising a cylindrical member including a contact and securing stud portion and a reduced portion adapted to extend through the base, with an intermediate shoulder; a metal cup or flare around said reduced portion fitting against said shoulder, with outer edge adapted for sealing to the base by a fused glass seal; and a fused metal seal attaching said flare tosaid reduced portion and shoulder of said member with a fluid-tight joint.
  • An electrical device comprising a vitreous envelope having openings therein, a plurality of metal terminal members consisting of cylindrical prongs each having a thin metal skirt secured thereto by a fluid tight joint, one of said prongs extending through each of said openings and the rim of the skirt thereon being fused and embedded in the vitreous material around said opening, each of said prongs having an enlarged portion at its outer end spaced from the flare thereon to provide a securing shoulder facing the envelope for engagement with securing means in a socket, and a mount within said envelope comprising an energy translation element and leads connected to the inner ends of said prongs.
  • An electrical device comprising a vitreous envelope, a cup-shaped vitreous body sealed at its rim to an opening in said envelope and having a plurality of openings in the bottom thereof, a plurality of metal terminal members consisting of cylindrical prongs each having a thin metal skirt secured thereto by a fluid-tight joint, one of said prongs extending through each of the openings in said cup-shaped vitreous body and the rim of the skirt thereon being fused and embedded in the vitreous material around said opening, each of said.
  • prongs having an enlarged portion at its outer end spaced from the flare thereon to provide a securing shoulder facing the bottom of said cup-shaped vitreous body for engagement with securing means in a socket, and a mount within said envelope comprising an energy translation element and leads connected to the inner ends oi. said prongs.
  • An electric energy translation device comprising a vitreous envelope having openings therein, a plurality of metal contact terminal devices each comprising a rigid prong member extending through one of said openings and a thin flared skirt around said member with its outer edge sealed directly to the vitreous material around said opening, said skirt having elastic flexure permitting slight relative rocking between said rigid prong member and said envelope, said prong member having sufficient rigidity to support the device, and an electric energy translation element in said envelope connected to said rigid members.
  • An electrical device comprising an envelope having a comparatively heavy preformed glass portion with a plurality of holes therethrough, a plurality of rigid metal contact prongs extending through said holes and provided with surrounding flared skirts having their edges sunk and fused into the thickness of said preformed glass portion around the said holes, and a light source in said envelope supported by and electrically connected to said prongs.
  • An electrical device comprising an envelope having a comparatively heavy preformed glass portion with a plurality of projecting bosses thereon and a hole through each of said bosses and said preformed glass portion; a plurality of rigid metal contact prongs extending through said holes and provided with surrounding flared skirts having their edges sunk and fused into the thickness of said preformed glass portion and around said bosses; and a light source in said envelope supported by and electrically connected to said prongs.

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  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Connecting Device With Holders (AREA)
US57196A 1936-01-02 1936-01-02 Incandescent lamp and the like Expired - Lifetime US2098080A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL49343D NL49343C (en:Method) 1936-01-02
US57196A US2098080A (en) 1936-01-02 1936-01-02 Incandescent lamp and the like
FR815758D FR815758A (fr) 1936-01-02 1936-12-31 Perfectionnements aux ampoules étanches fonctionnant à des températures élevées
GB207/37A GB471301A (en) 1936-01-02 1937-01-04 Improvements in and relating to incandescent and other electric lamps and similar devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57196A US2098080A (en) 1936-01-02 1936-01-02 Incandescent lamp and the like

Publications (1)

Publication Number Publication Date
US2098080A true US2098080A (en) 1937-11-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
US57196A Expired - Lifetime US2098080A (en) 1936-01-02 1936-01-02 Incandescent lamp and the like

Country Status (4)

Country Link
US (1) US2098080A (en:Method)
FR (1) FR815758A (en:Method)
GB (1) GB471301A (en:Method)
NL (1) NL49343C (en:Method)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422222A (en) * 1944-06-14 1947-06-17 Thomas E Carroll Electric bipost lamp adaptor
US2427096A (en) * 1938-12-01 1947-09-09 Westinghouse Electric Corp Electrical device and molded stem therefor
US2429287A (en) * 1942-07-18 1947-10-21 Westinghouse Electric Corp Apparatus for uniting leads to lamp contacts
US2462020A (en) * 1945-07-03 1949-02-15 Palmer H Craig Method and means for sealing conductors to glass envelope walls
US2682008A (en) * 1950-11-25 1954-06-22 Hanovia Chemical & Mfg Co Seal stem for electric discharge devices
US2972699A (en) * 1958-02-12 1961-02-21 Westinghouse Electric Corp Electric lamp and socket
WO2011055294A3 (en) * 2009-11-09 2011-07-14 Koninklijke Philips Electronics N.V. A lamp, a lamp holder for such a lamp and a system comprising such a lamp and lamp holder

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427096A (en) * 1938-12-01 1947-09-09 Westinghouse Electric Corp Electrical device and molded stem therefor
US2429287A (en) * 1942-07-18 1947-10-21 Westinghouse Electric Corp Apparatus for uniting leads to lamp contacts
US2422222A (en) * 1944-06-14 1947-06-17 Thomas E Carroll Electric bipost lamp adaptor
US2462020A (en) * 1945-07-03 1949-02-15 Palmer H Craig Method and means for sealing conductors to glass envelope walls
US2682008A (en) * 1950-11-25 1954-06-22 Hanovia Chemical & Mfg Co Seal stem for electric discharge devices
US2972699A (en) * 1958-02-12 1961-02-21 Westinghouse Electric Corp Electric lamp and socket
WO2011055294A3 (en) * 2009-11-09 2011-07-14 Koninklijke Philips Electronics N.V. A lamp, a lamp holder for such a lamp and a system comprising such a lamp and lamp holder

Also Published As

Publication number Publication date
GB471301A (en) 1937-09-01
NL49343C (en:Method)
FR815758A (fr) 1937-07-22

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