US1992493A - Discharge device - Google Patents

Discharge device Download PDF

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Publication number
US1992493A
US1992493A US580457A US58045731A US1992493A US 1992493 A US1992493 A US 1992493A US 580457 A US580457 A US 580457A US 58045731 A US58045731 A US 58045731A US 1992493 A US1992493 A US 1992493A
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US
United States
Prior art keywords
envelope
anode
cathodes
chambers
partition
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
US580457A
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English (en)
Inventor
Los Cornelis Bastiaan
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
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
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Publication of US1992493A publication Critical patent/US1992493A/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
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/50—Thermionic-cathode tubes
    • H01J17/58—Thermionic-cathode tubes with more than one cathode or anode

Definitions

  • the invention relates. to discharge tubes for full wave or polyphase rectification, more par-, ticularly to tubes comprising a single anode and two or more cathodes.
  • Figure 1 represents a discharge tube in which the anode is arranged in the screen separating the cathodes.
  • Figure 2 represents a form of execution in which the screen itself constitutes the anode.
  • Figure'S represents a glow-discharge rectifier to which the invention has been applied.
  • Figure 4. shows the circuit-arrangement of the rectifier described.
  • incandescible cathodes 4 and 5 are arranged on thepress 2 of the stem 3 of a discharge tube 1. the middle between the insulating or conductive material in which an, anode 7, for example of graphite, is arranged. If the screen 6 consists of insulating materiaLthe-anode h may be sealed-inat the top orat the bottom of the tubeand screen may be provided with a Wire. 4
  • Figure 2 represents, by way of example, a. form merals as in Figure 1.
  • the dischargetube has a symmetrical shape because there are two stems 11 and 12 each carrying an mcandescible cathode.
  • Figure 3 represents a rectifier comprising cold a very small surface.
  • the open ends of the glass tube are closed by hoods 13 and 14, for example of ferrochromium, which have a large surodes.
  • the hoods 13 and 14 are sealed on to the glassof the discharge tube 1 and provided with supply wires 15 and 16. On the inner side they may be provided with a coating adapted to emit electrons.
  • the discharge tube described may contain a gaseous filling consisting, for example, of the rare gases argon, helium, neon or crypton and having, if desired, added to it another gas such as mercury vapor.
  • a so-called Wehnelt cathode is utilized as the incandescible cathode.
  • the screen ably has a small aperture through which equalization of pressure between the various portions of the discharge tube may take place.
  • the screen is made of metal, the screen as a rule does not form along its whole circumference a perfect joint with the glass wall of the tube, so that in this caseno special opening is required for the equalization of the gas pressure between the chambers of the tube.
  • Figure 4 shows the circuit-arrangement of such a rectifier.
  • the secondary winding of a transformer 1'? which may be connected at 18 to the alternating current network, has a centre tap leading to one of the terminals 19 of a directcurrent load the other terminal of which is connected to the anode '1 of the discharge tube.
  • the incandescible cathodes 4 and 5 of the discharge tube are supplied from the secondary winding by means of tapped portions located near each end thereof. All the auxiliary devices such as resistances, switches, ammeters, etc. are omitted in this circuit-arrangement for the sake of clearness.
  • the current flows through the upper part of the secondary winding, via thedirect-current terminals 19 and the direct-current load to the anode '1 and thence via the incandescible cathode 5 back to the upper part of the secondary winding of the transformer 17.
  • the current flows through the lower part of the secondary winding via the direct-current terminals 19, the anode 1'1, the incandescible cathode 4 and back to the lower end of the secondary winding.
  • the two halves of the alternating-current cycle consequently pass in the same direction through the direct-current load connected at 19.
  • a gaseous discharge device comprising a vitreous envelope, both ends of which are closed by metal hoods sealed to the said envelope and forming the cathodes of the device, and a partition disposed centrally between said cathodes, said partition fully separating said cathodes, and an anode forming a unitary structure with said partition.
  • a full wave rectifier tube comprising an envelope, a partition wall in said envelope, disposed centrally and dividing said tube into two completely separated chambers, a cathode for each of said chambers and forming part of the envelope, and a common anode forming part of said partition wall, said anode being adapted to be connected through a load to the midpoint of a transformer winding to the two ends of which may be connected the cathodes.
  • a gaseous discharge tube comprising an envelope divided into a'plurality of chambers, a common partition structure completely separating said chambers, and a plurality of electrodes of one polarity, forming part of the wall of the envelope, one being provided for each of said chambers, and a common electrode of the other polarity forming part of said partition structure.
  • a full wave rectifier tube having an envelope, a gaseous filling therein, a central'partiticn dividing said envelope into two hermetically separated chambers, a common electrode forming part of said partition and having an active surface plementary electrodes, one for each chamber, said complementary electrodes forming wall portions of said envelope.
  • a full wave rectifier tube having an envelope, a gaseous filling therein, a partition dividing said envelope into two chambers, an anode carried by said partition and having an active surface in each of said chambers, and a cold cathode for each of said chambers, said cathodes forming metallic wall portions of said envelope.

Landscapes

  • Gas-Filled Discharge Tubes (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Lasers (AREA)
US580457A 1931-01-03 1931-12-11 Discharge device Expired - Lifetime US1992493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE380672X 1931-01-03

Publications (1)

Publication Number Publication Date
US1992493A true US1992493A (en) 1935-02-26

Family

ID=6348615

Family Applications (1)

Application Number Title Priority Date Filing Date
US580457A Expired - Lifetime US1992493A (en) 1931-01-03 1931-12-11 Discharge device

Country Status (5)

Country Link
US (1) US1992493A (enrdf_load_stackoverflow)
AT (1) AT133059B (enrdf_load_stackoverflow)
FR (1) FR728190A (enrdf_load_stackoverflow)
GB (1) GB380672A (enrdf_load_stackoverflow)
NL (1) NL34645C (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472865A (en) * 1946-02-26 1949-06-14 Raytheon Mfg Co Gaseous discharge device
US2505010A (en) * 1944-02-07 1950-04-25 Int Standard Electric Corp Full-wave rectifier tube
DE861446C (de) * 1940-06-15 1953-01-05 Philips Nv Gasgefuellte elektrische Entladungsroehre
US2699015A (en) * 1951-02-27 1955-01-11 Westinghouse Electric Corp Metal mixture for sealing to glass
US2782343A (en) * 1952-05-22 1957-02-19 Ibm Glow discharge tube
US2796557A (en) * 1952-05-22 1957-06-18 Ibm Glow discharge tube
DE1038658B (de) * 1956-09-13 1958-09-11 Western Electric Co Gasentladungsroehre mit einem aus zwei keramischen Teilen bestehenden Kolben und wenigstens einer Kathode und einer Anode
US4587462A (en) * 1984-08-10 1986-05-06 Gte Laboratories Incorporated Fluorescent light source with parallel DC discharges

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE861446C (de) * 1940-06-15 1953-01-05 Philips Nv Gasgefuellte elektrische Entladungsroehre
US2505010A (en) * 1944-02-07 1950-04-25 Int Standard Electric Corp Full-wave rectifier tube
US2472865A (en) * 1946-02-26 1949-06-14 Raytheon Mfg Co Gaseous discharge device
US2699015A (en) * 1951-02-27 1955-01-11 Westinghouse Electric Corp Metal mixture for sealing to glass
US2782343A (en) * 1952-05-22 1957-02-19 Ibm Glow discharge tube
US2796557A (en) * 1952-05-22 1957-06-18 Ibm Glow discharge tube
DE1038658B (de) * 1956-09-13 1958-09-11 Western Electric Co Gasentladungsroehre mit einem aus zwei keramischen Teilen bestehenden Kolben und wenigstens einer Kathode und einer Anode
US4587462A (en) * 1984-08-10 1986-05-06 Gte Laboratories Incorporated Fluorescent light source with parallel DC discharges

Also Published As

Publication number Publication date
NL34645C (enrdf_load_stackoverflow)
AT133059B (de) 1933-04-25
GB380672A (en) 1932-09-22
FR728190A (fr) 1932-06-30

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