US1882032A - Discharge tube - Google Patents

Discharge tube Download PDF

Info

Publication number
US1882032A
US1882032A US204968A US20496827A US1882032A US 1882032 A US1882032 A US 1882032A US 204968 A US204968 A US 204968A US 20496827 A US20496827 A US 20496827A US 1882032 A US1882032 A US 1882032A
Authority
US
United States
Prior art keywords
anodes
discharge tube
cathode
wires
carbon
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
US204968A
Other languages
English (en)
Inventor
Oosterhuis Ekko
Mulder Johannes Gijsbe Wilhelm
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 claimed from GB2655226A external-priority patent/GB281446A/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of US1882032A publication Critical patent/US1882032A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/10—Anodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens

Definitions

  • Discharge tubes of this kind havehitherto been provided with anodes consisting of metal, for example of iron or nickel. It has.
  • the discharge tubes will be designed for voltages lying between 80 and 400 volts.
  • the latter may instead of being entirely of carbonconsist of a core of material other than carbon coated with a layer of carbon.
  • the term carbon must be understood to include also graphite.
  • the anodes extend in the discharge tube so far that during the operation of the tube positive ions practically cannot impinge on the wires to which the anodes are secured, the disintegration of these wires being consequently prevented thereby.
  • the said wires may also be coated with an insulating material, for example with glass, which also prevents the wires from being struck by positive ions, so that disintegration cannot occur.
  • .1 is a discharge tube connected in a circuit arrangement which permits to rectify both half-waves of an alternatmg current which enters at A and B.
  • Pole wires 3 and 4 for an oxide incandescent cathode 5 and pole wires 6 and 7 for two anodes 8 and 9 are mounted in a stem 2 of the discharge tube.
  • These anodes which, in accordance with the invention, are made of carbon are shaped into a cylinder and are screwed on to the threaded pole wires.
  • the anodes in the discharge tube reach so far and the distance between the incandescent cathode and the metal anode pole wires is, therefore, so great that the latter cannot be struck by positive ions.
  • the discharge tube is filled with argon at a pressure lying between 0.5 and 5 mm. of mercury. The discharge produced during the operation of the tube has the character of an arc discharge.
  • a gasfilled discharge tube for rectifying both half waves of an alternating current ranging in voltage between 80 and 400 volts, having a filling of argon at a pressure lying between 0.5 and 5 mm. of mercury, a substantially centrally located electronemitting-oxide cathode, and provided with cylindrical anodes consisting at least superficially of carbon and located at each side of the cathode respectively, the active surfaces of which anodes are of relatively great radius of curvature as compared with that of the cathode, and which anodes have ends at a point remote from the emitting surface of the cathode, and conductors for the anodes connected at said remote ends whereby the conductors are substantially protected from being struck by positive ions.
  • a gasfilled discharge tube for rectifying both half waves of an alternating current ranging in voltage between 80 and 400 volts, having a filling of rare gas at a pressure lying between 0.5 and 5 mm, of mercury, a substantially centrally located electronemitting-oxide cathode, and provided with cylindrlcal anodes consisting at least superficially of carbon and located respectively at each side of the plane through the center of the cathode,

Landscapes

  • Carbon And Carbon Compounds (AREA)
  • Lasers (AREA)
US204968A 1926-10-09 1927-07-11 Discharge tube Expired - Lifetime US1882032A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1882032X 1926-10-09
GB2655226A GB281446A (en) 1926-10-23 1926-10-23 Improvements in or relating to incandescent-cathode discharge tubes for rectifying alternating currents

Publications (1)

Publication Number Publication Date
US1882032A true US1882032A (en) 1932-10-11

Family

ID=26258301

Family Applications (1)

Application Number Title Priority Date Filing Date
US204968A Expired - Lifetime US1882032A (en) 1926-10-09 1927-07-11 Discharge tube

Country Status (3)

Country Link
US (1) US1882032A (de)
DE (1) DE648455C (de)
FR (1) FR638140A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714685A (en) * 1951-08-25 1955-08-02 Westinghouse Electric Corp Low pressure fluorescent and discharge lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714685A (en) * 1951-08-25 1955-08-02 Westinghouse Electric Corp Low pressure fluorescent and discharge lamps

Also Published As

Publication number Publication date
DE648455C (de) 1937-08-02
FR638140A (fr) 1928-05-16

Similar Documents

Publication Publication Date Title
US2501882A (en) High-voltage high-vacuum acceleration tube
US1963059A (en) Incandescible cathode discharge tube having a gaseous filling
Van Atta et al. A new design for a high-voltage discharge tube
US1882032A (en) Discharge tube
US2244070A (en) Electrode for gaseous discharge tubes
US2246131A (en) Electron emitting body
GB223562A (en) Improvements relating to electron discharge devices
US1920649A (en) High amperage rectifier
US2451556A (en) Electrode structure for gaseous discharge devices
US2479164A (en) Electric glow discharge lamp
US2725497A (en) Floating grids for fluorescent lamps
US2212881A (en) Electric gaseous discharge device
US1790152A (en) Electrical discharge apparatus
US1760525A (en) Rectifier
US2170034A (en) Rectifier tube
US1987338A (en) Mercury vapor rectifier
US1747050A (en) Electric ionization device
US2927240A (en) Gaseous discharge device
US2887614A (en) Gaseous discharge device
US1787699A (en) X-ray tube
US2273763A (en) Incandescible cathode
US2053501A (en) Thermionic gaseous discharge rectifier
US2917649A (en) Ignitron
US2184709A (en) Rectifier tube
US1706135A (en) Electronic device