US2125700A - High tension discharge vessel - Google Patents

High tension discharge vessel Download PDF

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Publication number
US2125700A
US2125700A US698380A US69838033A US2125700A US 2125700 A US2125700 A US 2125700A US 698380 A US698380 A US 698380A US 69838033 A US69838033 A US 69838033A US 2125700 A US2125700 A US 2125700A
Authority
US
United States
Prior art keywords
members
tube
envelope
high tension
insulating
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
US698380A
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English (en)
Inventor
Volkel Leopold
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.)
CHF Mueller AG
Original Assignee
CHF Mueller AG
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 CHF Mueller AG filed Critical CHF Mueller AG
Application granted granted Critical
Publication of US2125700A publication Critical patent/US2125700A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/02—High-level flushing systems
    • E03D1/06—Cisterns with tube siphons
    • E03D1/07—Cisterns with tube siphons with movable or deformable siphon tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details

Definitions

  • This invention relates to high tension discharge devices comprising supply conductors which are insulated against high tensions, and more particularly to X-ray tubes.
  • the cables are introduced into the device from one end thereof.
  • the device comprises two reentrant parts consisting of insulating material and extending parallel toI the longitudinal axis of the device, each part carrying one of the electrodes of the discharge device.
  • the supply conductors are led into these reentrant parts so as to be insulated for the full tension which may occur and are connected to the electrodes within said re-entrant parts.
  • the discharge path between the electrodes extends laterally to the reentrant parts.
  • the two cables By leading in the two cables from one end of the device they can be kept together up to their entrance into the tube.
  • the cable junctions are located as far as possible from the window serving for the passage of the rays.
  • the spaces into which the insulated conductors are led may be iilled with a compressed gas or with a liquid or solid insulating material.
  • Fig. l is a longitudinal section taken through the device including the reentrant parts.
  • Fig. 2 is a cross-section of the device of Figure 1 taken at II-II.
  • Fig. 3 is a sectional view on an enlarged scale along line III-III of Fig. 1 with certain parts omitt-ed, and
  • Fig. 4 is a sectional View along line IV-IV of Fig. 3.
  • the tube shown in Figure 1 has an envelope comprising a metal cap I to whose edge a glass member 2 is sealed.
  • This glass member surrounds two glass tubes 3 and 4 which rearwardly increase in diameter and which are sealed to the glass member2 at ZI to thus formreentrant parts of the discharge tube.
  • 'Ihe glass tubes 3 and 4 carry at their front end the anode 5 and the cathode 6, respectively.
  • the anode 5 is shaped in such a manner that the cathode rays, emitted by the cathode in a direction normal to the axes of the reentrant parts, strike the frontal surface of the anode.
  • the anode 5 is provided with a cavity whose bot- (Cl.
  • Z-35 tom surface forms an impact or target surface l.
  • Surface 'I is inclined to form equal angles with the axes of the glass tubes 3 and 4 (see Fig. 1) and with a line normal to the plane passing through these axes. This surface also forms an angle of 45 with the direction of the cathode rays.
  • the metal cap I is provided with a window 8 for the passage of the rays.
  • a second window, shown at 22 in Fig. 3, serves for the beam of rays emerging in a direction perpendicular to the aXis of the discharge device.
  • this space may be filled with a material which is highly resistant to electrical breakdowns, for instance, with cornpressed air, oil or with a solid cast material.
  • a separate insulating tube I3 is provided which has an internal metal coating I4 for avoiding corona eiiects of the current carrying conductors.
  • an insulating tube I5 is provided which surrounds two concentrically arranged metal tubes IS and II for the circulation of a cooling medium.
  • a liquid or gaseous cooling medium can be supplied, through the tube Il, and carried off through the annular space existing between the tubes I6 and I'I after it has absorbed the heat produced at the anode.
  • the insulating tubes I3 and I5 preferably constitute the outer envelope of the connecting devices corresponding to the cables.
  • the cables themselves are provided with an outer metal coating which can be grounded, as indicated at 25, during the operation of the X-ray tube. This coating is electrically connected to a metal hood I8 which surrounds the whole X-ray tube and is provided with necessary apertures for the passage of the X-rays.
  • a hollow member I9 of insulating material is provided between the Wall of the discharge device and the metal hood I 8.
  • a metal coating instead of a separate metal hood I8, may be provided on the insulating member I9 which coating is electrically connected to the grounded coating of the cables 9 and I0.
  • This insulating member bears on the metal hood I with the interposition of a lead layer 20.
  • the end of the member I may be shaped substantially as a hemisphere whose center point falls in the focal spot of the X-ray tube.
  • the aperture through which the rays emerge may be shaped as a slit having rounded corners and extending through a quarter of a circle so that a fan-shaped beam of X-rays is obtained.
  • Portions I and 2 of the tube wall may be formed as a single metal member thereby increasing the mechanical strength of the tube, and at the same time providing an equipotential surface. If the portion 2 is of metal and portion I of glass, the surface of the latter portion can be made equipotential by means of electrostatic screening.
  • a high-tension discharge device comprising an elongated envelope having two re-entrant parts of insulating material forming hollow tubular members, and a cylindrical portion surrounding said members, said members extending side by side into said portion from one end thereof, and being symmetrically disposed with respect to the axis of said portion, two electrodes within said envelope and mounted one on one end of each of said members, said electrodes being spaced apart to form a discharge gap, current leads passing through the hollow of said members and electrically connected to the electrode of their respective member, and means to electrically insulate said leads from each other, said means comprising insulating sleeves surrounding said leads and extending into the hollow of said tubular members, said insulating means being adapted to withstand the full Voltage occurring between said electrodes.
  • a high-voltage discharge tube comprising, an elongated envelope having two re-entrant parts of insulating material forming hollow tubular members, and a portion surrounding said members, said members being of substantially equal length and extending into said portion from one end thereof with their axes symmetrical with respect to the axis of said portion, said members having diameters which are equal and at least one-quarter the inner diameter of said portion, electrodes within said envelope and mounted one on one end of each of said tubular members, current leads passing through the hollow of said tubular members and connected to the electrode mounted thereon, insulating sleeves surrounding said leads and extending from outside the tube into said tubular members, said sleeves having a combined dielectric strength capable of withstanding the full voltage occurring between said electrodes, a protective hood surrounding the elongated envelope and provided with a metallic surface, and high-voltage cables having a metallic coating electrically connected to the metallic surface of said protective hood.
  • An X-ray tube having an elongated enclosing envelope comprising two tubular re-entrant members and a tubular portion surrounding said members, said members extending side by side into said portion from one end of the envelope with their axes symmetrical to the axis of said portion, a cathode Structure supported :trom one of said members, an anode structure supported from the end of the other member, said cathode structure and anode structure being spaced apart to form a discharge gap extending laterally to the axes of said members, said cathode struc ture being adapted to produce a cathode-ray beam having an axis substantially perpendicular to the axes of said tubular members, said anode construction comprising a target surface forming equal angles with the axes of the tubular members and with a line normal to a plane passing through said axes, current leads connected to said cathode structure and anode structure respectively, said tubular members surrounding said leads with an intermediate space, and
  • a high-tension discharge tube comprising an elongated envelope substantially symmetrical about a longitudinal axis and having tubular reentrant members of insulating material and a metal portion surrounding said members, said members being of substantially equal lengths and extending into said portion from one end thereof with their axes symmetrical with respect to the longitudinal axis of said envelope and each having an outside diameter greater than 1/4 the inside diameter of the envelope, electrodes within said envelope and mounted one on each of said members, lead Wires surrounded by said members and connected to said electrodes, and insulating sleeves surrounding said current leads and extending from the outside oi the tube into said members and completely filling a considerable portion of the space between said leads and said members.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • X-Ray Techniques (AREA)
US698380A 1932-12-02 1933-11-16 High tension discharge vessel Expired - Lifetime US2125700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE412837X 1909-12-20

Publications (1)

Publication Number Publication Date
US2125700A true US2125700A (en) 1938-08-02

Family

ID=6439205

Family Applications (1)

Application Number Title Priority Date Filing Date
US698380A Expired - Lifetime US2125700A (en) 1932-12-02 1933-11-16 High tension discharge vessel

Country Status (5)

Country Link
US (1) US2125700A (nl)
BE (1) BE399759A (nl)
FR (2) FR412837A (nl)
GB (1) GB412837A (nl)
NL (1) NL37892C (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665391A (en) * 1950-03-04 1954-01-05 Amperex Electronic Corp X-ray tube having a mica window

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665391A (en) * 1950-03-04 1954-01-05 Amperex Electronic Corp X-ray tube having a mica window

Also Published As

Publication number Publication date
NL37892C (nl)
GB412837A (en) 1934-07-05
FR764000A (fr) 1934-05-12
BE399759A (nl)
FR412837A (fr) 1910-07-23

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