US2056157A - Supporting base for electric discharge devices - Google Patents

Supporting base for electric discharge devices Download PDF

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Publication number
US2056157A
US2056157A US524391A US52439131A US2056157A US 2056157 A US2056157 A US 2056157A US 524391 A US524391 A US 524391A US 52439131 A US52439131 A US 52439131A US 2056157 A US2056157 A US 2056157A
Authority
US
United States
Prior art keywords
ring
sleeve
vitreous
slot
depression
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
US524391A
Other languages
English (en)
Inventor
Leroy J Buttolph
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 Vapor Lamp Co
Original Assignee
General Electric Vapor Lamp 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
Application filed by General Electric Vapor Lamp Co filed Critical General Electric Vapor Lamp Co
Priority to US524391A priority Critical patent/US2056157A/en
Priority to GB8372/32A priority patent/GB376686A/en
Priority to FR41575D priority patent/FR41575E/fr
Application granted granted Critical
Publication of US2056157A publication Critical patent/US2056157A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49885—Assembling or joining with coating before or during assembling

Definitions

  • the present invention relates to supports for Such a slit, of course, very positively limits the vitreous articles, and particularly to a support or compressive force which can be exerted on the base for lamps or other devices formed of fused vitreous body by said sleeve, so that it is now possilica or the like which are designed to operate sible to have a snugly fitting sleeve without any at very high temperatures, and constitutes imdanger of destroying the vitreous article by ex- 5 provements on the methods and apparatus and cessive compression thereof.
  • a particular object of the invention is to prosupporting means which will not damage the 10 vide a simple supporting means for a vitreous body, despite the fact that it is rigidly fixed 10 article such as a fused silica lamp. Another obthereon at all operating temperatures.
  • My new ject of the invention is to provide a support which supporting means is also relatively inexpensive.
  • FIG. 1 is an elevational view of a fused silica ticle.
  • a further object of the invention is to mercury vapor lamp having anode and cathode provide a novel method of assembling such a guards attached thereto according to my new support.
  • Fig. 2 is a sectional view of said lamp, taken on 20 description or from an inspection of the accomthe line 22 of Fig. l, and panying drawing.
  • Fig. 3 is a fragmentary sectional view taken on The invention consists in a new and novel sup-. the line 33 of Fig. 1. porting means, and in the method of producing In this drawing there is shown a mercury vapor the same, as hereinafter set forth and claimed.
  • arc lamp having the fused silica envelope I, said 25 In the manufacture of high intensity light envelope having an annular depression 2 formed sources and accessory apparatus, where the operin the wall forming the cathode chamber, as ating temperatures are so high as to be destrucshown in Fig. 3, and a similar depression (not tive of basing cements and above the melting point shown) formed in the wall about the anode.
  • these bases or guards may be atsaid sleeve preferably having a slot 5 in the edge 35 tached to such articles in an extremely simple thereof which registers with the joint in said split manner by forming the vitreous articles with an ring 3.
  • Said sleeve 4 has a plurality of holes near irregularity such as annular depression, indentathe edge thereof which give access to the split tions or bosses, therein at the point at which the ring beneath, drops of silver-solder 6 being guard or base is to be attached, placing a split dropped through each of these holes, whereby ring in said depression, and then silver-soldering said sleeve and said ring are united, and the or otherwise attaching a sleeve, which preferably assembly thus locked in position.
  • the sleeve 1 has a greater coefiicient of expansion than said is similarly mounted about the anode, this sleeve vitreous article, to said split ring.
  • This sleeve likewise having a slot 8 in the edge thereof by whichserves as a guard or base for the lamp or means of which excessive strains are avoided. 45 other article, being snugly adjusted on said article
  • Each of the sleeves 4 and 1 serves to support the at the melting point of the silver solder, obviously vitreous envelope, and likewise serves as a curis under tension at all lower temperatures. -In rent collector for the associated electrode.
  • sleeve 4 is then slipped over said ring with the slot 5 in registry with, or at least adjacent to, the joint in the ring.
  • the ring and the adjacent part of the sleeve 4 are then heated, as by means of a blow torch, to substantially the melting point of silver-solder, the silver-solder 6 then being dropped through the holes near the edge of the sleeve.
  • the fused silica envelope I is also heated, but due to its extremely low coefficient of expansion does not appreciably increase its diameter.
  • the slot 5 in this sleeve allows the sleeve 4 to slightly change its curvature, thereby utilizing the elasticity of said sleeve to prevent the exertion of a crushin orce on the fused silica envelope I.
  • the amount of pressure exerted is obviously con-
  • the sleeve 1 is of course, held in position in the same manner, so that a detailed description of this assembly is unnecessary.
  • the sleeve 4 may be affixed to the split ring in other ways, as by frictional engagement, or by providing each with a threaded portion and screwing the sleeve onto the ring, one of these threaded portions preferably being tapered so that the sleeve may be put under considerable tension at room temperature, the sleeve and ring then being interlocked by indenting, soldering or upsetting the parts at any desired point therein.
  • the slot 5 and the joint in the split ring 3 need not be in exact registry in order to provide the needed resilience, it being sufficient if they are both between any two solder points 6, so that the slot 5 will be free to open without stretching any portion of the ring 3, and that the term registry, as used in the specification, is to be given this latitude.
  • a vitreous body having an irregularity in the surface thereof, a split ring engaging said irregularity, said ring having an open joint between the ends thereof and a closefitting sleeve extending about said ring and soldered thereto, said sleeve having an openended slot therein in registry with the joint in said ring.
  • a fused silica lamp having an annular depression therein, a split ring in said depression, said ring having an open joint between the ends thereof, and a close-fitting sleeve extending about said ring and soldered thereto, said sleeve having an open-ended slot in registry with the joint in said ring.
  • a vitreous body having an irregularity in the surface thereof, a split ring engaging said irregularity, said ring having an open joint between the ends thereof, and a close-fitting sleeve extending about said ring and aifixed thereto, said sleeve havingan open ended slot therein, said slot being so disposed with respect to the joint in said ring'that they both lie between the same adjacent points of fixation between said ring and sleeve, whereby said slot and said joint cooperate to permit elastic yielding of both members to limit the force exerted thereby on said vitreous body.
  • a vitreous body having an irregularity in the surface thereof, a split ring engaging said irregularity, said ring having an open joint between the ends thereof, and a closefitting sleeve extending about said ring and affixed thereto, said sleeve having an open ended slot extending therein to a point which is farther from the edge of said sleeve than the points where it is affixed to said ring said slot being so disposed with respect to the joint in said ring that they both lie between the same adjacent points of fixation between said ring and sleeve, whereby said slot and said joint cooperate to permit elastic yielding of both members to limit the force exerted thereby on said vitreous body.
US524391A 1931-03-21 1931-03-21 Supporting base for electric discharge devices Expired - Lifetime US2056157A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US524391A US2056157A (en) 1931-03-21 1931-03-21 Supporting base for electric discharge devices
GB8372/32A GB376686A (en) 1931-03-21 1932-03-21 Improvements in and relating to supports for vitreous articles
FR41575D FR41575E (fr) 1931-03-21 1932-03-21 Perfectionnements apportés aux supports pour articles vitreux tels que des lampes, ainsi qu'aux procédés et aux appareils pour les fabriquer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US524391A US2056157A (en) 1931-03-21 1931-03-21 Supporting base for electric discharge devices

Publications (1)

Publication Number Publication Date
US2056157A true US2056157A (en) 1936-10-06

Family

ID=24089003

Family Applications (1)

Application Number Title Priority Date Filing Date
US524391A Expired - Lifetime US2056157A (en) 1931-03-21 1931-03-21 Supporting base for electric discharge devices

Country Status (3)

Country Link
US (1) US2056157A (fr)
FR (1) FR41575E (fr)
GB (1) GB376686A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2884554A (en) * 1956-06-28 1959-04-28 Rca Corp Electron tube
US3271613A (en) * 1962-12-06 1966-09-06 Westinghouse Electric Corp Stress-relieved seal structure for arcuate fluorescent lamp or the like

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2884554A (en) * 1956-06-28 1959-04-28 Rca Corp Electron tube
US3271613A (en) * 1962-12-06 1966-09-06 Westinghouse Electric Corp Stress-relieved seal structure for arcuate fluorescent lamp or the like

Also Published As

Publication number Publication date
FR41575E (fr) 1933-02-07
GB376686A (en) 1932-07-14

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