US2240333A - Support for gaseous discharge lamps - Google Patents

Support for gaseous discharge lamps Download PDF

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Publication number
US2240333A
US2240333A US284999A US28499939A US2240333A US 2240333 A US2240333 A US 2240333A US 284999 A US284999 A US 284999A US 28499939 A US28499939 A US 28499939A US 2240333 A US2240333 A US 2240333A
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US
United States
Prior art keywords
support
envelope
wire
jacket
lamp
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
US284999A
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English (en)
Inventor
William F Hodge
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 BE440013D priority Critical patent/BE440013A/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US284999A priority patent/US2240333A/en
Priority to FR867317D priority patent/FR867317A/fr
Application granted granted Critical
Publication of US2240333A publication Critical patent/US2240333A/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
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/34—Double-wall vessels or containers

Definitions

  • a further object of the invention is to provide a support which will maintain such a device in a desired position within an enclosing jacket without deformation under normal conditions of shipping and handling, even after heating to relatively high temperatures such as encountered in some of these devices. Still other objects and advantages of the invention will appear from the following detailed specification'or from an inspection of the accompanying drawing.
  • the support is made of relatively thin sheet metal which affords a minimum of heat conduction from the lamp envelope, with which it makes only a line contact.
  • This sheet metal support is given the necessary rigidity by turning over the edges thereof to form a U-shaped girder section.
  • this support is preferably made of a metal of the class which hardens upon the application of heat thereto, whereby the structure is strengthened, rather than weakened, by the heating to which it is subjected during the operation of the lamp.
  • this support has a perforation which will just pass the wire to which it is to be attached, and the parallel sides at this point are separated only by the width of this'hole, whereby the support is fixed against tilting on said wire in one direction. Both of these turned over edges are then welded to the wire, whereby tilting in the other direction on said wire, as well as rotation or longitudinal movement thereon, is entirely prevented.
  • FIG. 1 is an elevational view of a gaseous discharge lamp having its inner arc enclosing envelope supported within the outer jacket by means of my novel support,
  • Fig. 2 is a plan view of the support
  • Fig. 3 is a perspective view of the same support welded in position on the supporting wire.
  • the discharge device I is of the general type disclosed in U. S. Patent 2,094,694, granted Oct. 5, 1937 to Cornelis Bol et al., wherein the sealed tubular envelope contains a fixed gas, such as argon, and mercury in an amount to develop a pressure of at least several atmospheres in operation.
  • a fixed gas such as argon
  • mercury in an amount to develop a pressure of at least several atmospheres in operation.
  • At one end said lamp has a thermionic cathode 2 mounted on an inlead 3, while at the other end thereof there is a similar cathode 4 mounted on an inlead 5.
  • These cathodes are of any suitable activated thermionic type. Adjacent the cathode 4 is an auxiliary starting anode 6.
  • Said lamp I is mounted within an enclosing jacket I of glass or the like which preferably contains a gas, such as nitrogen, at a pressure of the order of half an atmosphere.
  • a gas such as nitrogen
  • At one end of said jacket I there is a reentrant pinch seal 8 having a pair of inleads 9 and in sealed thereth'rough.
  • Said inleads are connected externally of said jacket to the verse support member l3 through which the beaded lead to the cathode 4 passes whereby the lower end of the envelope I is supported.
  • this support member l3 has a pair of openings II and I5 therein, the
  • opening l4 being of the same diameter as the extension I 2, while the opening I5 is of slightly larger diameter than that of the beaded inlead which passes therethrough.
  • the edges of this support member are bent downwardly to give a girder-like structure, these edges converging toward the hole II, to which they are tangent, whereby they bear against opposite sides of the extension I2, to which they are spot welded.
  • this support When made of a metal such as K Monel, which hardens upon heating,-this support retains its initial, or actually increases in, strength during operation of the lamp, despite the relatively high operating temperature thereof.
  • the extension I2 is electrically connected to the inlead to the cathode 4 through a suitable stranded wire.
  • the inlead 9 has a similar extension I6 which extends past the lamp I.
  • the ends of said extensions I2 and I6 each have welded thereto a spring II which bears against the inner surface of the jacket I.
  • a transverse mica support member I 8 is mounted on the extensions I2 and I6 by means of suitable eyelets I 9 which are afiixed to the mica member I8 and welded to said extensions, the beaded inlead to the cathode 2 extending through a suitable opening in said mica support.
  • Said extension I6 is electrically connected tothe inlead to the cathode 2 through a suitable stranded wire.
  • An electrical connection is likewise provided from the lower end of said extension I6 through a high resistance to the inlead to the auxiliary anode 6.
  • the support member I3 which is extremely inexpensive and simple in construction, has been found to provide a mounting for the lamp I within the enclosing jacket I which is far superior to any means heretofore devised for use within the limited space available, and which has demonstrated its ability to withstand all the shocks to which these lamp units are subjected, either in transit or in commercial use.
  • a similar support member I3, attached to the extension IB may also be'used at the upper end of the lamp I, in place of the mica support I8 shown, excellent support thus being provided for the lamp I.'
  • a support for the vitreous envelope of an electric gaseous discharge device comprising a substantially rigid lead wire, and means to support opposite ends of the envelope in a fixed position with respect to said wire, at least one of said means consisting of a thin. metal support member mounted transversely to said lead wire, said member having an opening at one end thereof which just permits the passage of said lead wire therethrough and an opening at the opposite end thereof adapted to serve as a seat for the adjacent end of said envelope, said support member making a line contact with said envelope, the edges of said member being bent to an angle of substantially 90 with the main portion, said main portion being of substantial width, said edges converging into contact with said lead wire and being welded thereto on both sides thereof.
  • a support for the vitreous envelope of an electric gaseous discharge device comprising a substantially rigid lead wire, and means to support opposite ends of the envelope in a fixed position with respect to said wire, at
  • metal support member mounted transversely to said lead wire, said member having an opening at one end thereof which Just permits the passage of said lead wire therethrough and an opening at the opposite end thereof adapted to serve as a seat for the adjacent end of said envelope, said support member making a line contact with said envelope, the edges of said member being bent to an angle of substantially with the main portion, said main portion. being of substantial width, said edges converging into contact with said lead wire and being welded thereto on both sides thereof, said member being made of a metal which possesses the property of hardening at elevated temperatures.
  • an electric discharge lamp envelope of vitreous material and an enclosing jacket therefor and means to support said envelope in a fixed position within said jacket
  • said means comprising a pair of support wires and a pair of transverse members mounted on said wires within,said Jacket and engaging opposite ends of said envelope, at least one of said members being a thin body of substantial width made of metal and having openings therein, the adjacent end of said envelope being seated in one of said openings, the other opening in said metal member having a diameter substantially equal to that of a support wire which passes therethrough, said member having the edges thereof opposite the latter opening bent to an angle of substantially 90 to the main portion and into contact with said support wire, said edges being welded to said wire, said member making a line contact with said envelope.
  • an electric discharge lamp envelope of vitreous material an enclosing Jacket therefor and means to support said envelope being a thin body of substantial width made of 10 metal and having openings therein, the adjacent end of said envelope being seated in one of said openings, the other opening in her having diameter substantiallyequal to that of a support wire which passes therethrough, said metal member having the edges thereof opposite the latter opening bent to an angle of substantially 90 with the main portion and into contact with said support wire, said edges being welded to said wire, both of said transverse members making a line contact with said envelope, the force exerted by said mica body on said envelope being sumcient to support said envelopeflrmlyagainstsaidmetaimemberinall positions of said jacket and insuiiicient to cause rupture of said envelope when said envelope expands and contracts under service conditions.

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  • Vessels And Coating Films For Discharge Lamps (AREA)
US284999A 1939-07-17 1939-07-17 Support for gaseous discharge lamps Expired - Lifetime US2240333A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE440013D BE440013A (en(2012)) 1939-07-17
US284999A US2240333A (en) 1939-07-17 1939-07-17 Support for gaseous discharge lamps
FR867317D FR867317A (fr) 1939-07-17 1940-09-27 Perfectionnements aux supports de tubes à décharge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US284999A US2240333A (en) 1939-07-17 1939-07-17 Support for gaseous discharge lamps

Publications (1)

Publication Number Publication Date
US2240333A true US2240333A (en) 1941-04-29

Family

ID=23092319

Family Applications (1)

Application Number Title Priority Date Filing Date
US284999A Expired - Lifetime US2240333A (en) 1939-07-17 1939-07-17 Support for gaseous discharge lamps

Country Status (3)

Country Link
US (1) US2240333A (en(2012))
BE (1) BE440013A (en(2012))
FR (1) FR867317A (en(2012))

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615146A (en) * 1948-02-11 1952-10-21 Cooper Hewitt Electric Co Thermostatic switch
US2671183A (en) * 1951-09-12 1954-03-02 Gen Electric Electric discharge lamp mount
US2677068A (en) * 1951-12-29 1954-04-27 Gen Electric Arc tube mount
US2733363A (en) * 1956-01-31 Arc tube mount
US4254355A (en) * 1978-09-11 1981-03-03 General Electric Company Ceramic arc tube mounting
EP0334444A1 (en) * 1988-03-25 1989-09-27 Koninklijke Philips Electronics N.V. Electric gas discharge lamp
EP1139375A1 (de) * 2000-03-30 2001-10-04 Heraeus Noblelight GmbH Optischer Strahler

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733363A (en) * 1956-01-31 Arc tube mount
US2615146A (en) * 1948-02-11 1952-10-21 Cooper Hewitt Electric Co Thermostatic switch
US2671183A (en) * 1951-09-12 1954-03-02 Gen Electric Electric discharge lamp mount
US2677068A (en) * 1951-12-29 1954-04-27 Gen Electric Arc tube mount
US4254355A (en) * 1978-09-11 1981-03-03 General Electric Company Ceramic arc tube mounting
EP0334444A1 (en) * 1988-03-25 1989-09-27 Koninklijke Philips Electronics N.V. Electric gas discharge lamp
US5001384A (en) * 1988-03-25 1991-03-19 U.S. Philips Corporation Electric gas discharge lamp including an outer envelope and supporting frame
EP1139375A1 (de) * 2000-03-30 2001-10-04 Heraeus Noblelight GmbH Optischer Strahler
US6570307B2 (en) 2000-03-30 2003-05-27 Heraeus Noblelight Gmbh Optical radiator with anti-extraction lock

Also Published As

Publication number Publication date
BE440013A (en(2012))
FR867317A (fr) 1941-10-13

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