US2048237A - X-ray apparatus - Google Patents

X-ray apparatus Download PDF

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Publication number
US2048237A
US2048237A US707975A US70797534A US2048237A US 2048237 A US2048237 A US 2048237A US 707975 A US707975 A US 707975A US 70797534 A US70797534 A US 70797534A US 2048237 A US2048237 A US 2048237A
Authority
US
United States
Prior art keywords
tube
transformer
ray
laminations
ray tube
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
US707975A
Other languages
English (en)
Inventor
Verhoeff Adrianus
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
Application granted granted Critical
Publication of US2048237A publication Critical patent/US2048237A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G29/00—Arrangements for lubricating fibres, e.g. in gill boxes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • C10M101/04—Fatty oil fractions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
    • C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M7/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made of other substances with subsequent freeing of the treated goods from the treating medium, e.g. swelling, e.g. polyolefins
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/02—Constructional details
    • H05G1/04—Mounting the X-ray tube within a closed housing
    • H05G1/06—X-ray tube and at least part of the power supply apparatus being mounted within the same housing
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2060/00—Chemical after-treatment of the constituents of the lubricating composition
    • C10N2060/04—Oxidation, e.g. ozonisation
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions

Definitions

  • an X-ray tube may be combined with a high-voltage transformer to form a unit.
  • a high-voltage transformer may be combined with an intervening space between the tube and the metal parts of the transformer and sometimes this space has been filled with oil, in which case the intervening space may be made smaller than if it contained air.
  • X-ray tubes having a wall portion protected against irregular electric charges i. e. tubes having an equipotential wall portion or a double wall completely avoid the necessity of such an intervening space. This fact may be readily understood 'by keeping in mind that the electrostatic charges built up. on the inner surface of charged wall is placed a short distance therefrom.
  • X-ray tube having a wall portion protected against irregular charges is to include both an X-ray tube having an equipotential wall portion and an X-ray tube having a double wall.
  • the present invention relates to an X-ray apparatus in which part of the wall of the tube bears against the magnetic core of the transformer'either directly or through the intermediary of a comparatively thin insulating layer or metal member.
  • the longitudinal axis of the tube is arranged perpendicular to the plane of the sheet-metal laminations forming the transformer core.
  • the size of the transformer core and the length of an equipotential portion of the wall of the X-ray tube may be brought into better mutual concordance than with a tube arranged parallel to the plane of the laminations.
  • the insulating tube portions protrude from both sides or from one side of the transformer core.
  • a symmetrical construction of an X-ray apparatus according to the invention may be obtained by dividing. the transformer into two parts and by arranging the X-ray tube between these two parts.
  • the parts of the transformer are shelltype transformers in which the legs of the cores are located on opposite sides of the Xray tube and in the same direction.
  • the entire unit may be easily enclosed by a metal envelope.
  • shape of the transformer core is preferably made to conform in this case to the circular crosssection of the tube which brings about a saving of space and ensures the correct position of the tube.
  • Figure 1 is a section taken perpendicular to the axis of the tube and shows one of the transformer halves in section, the other in elevation.
  • Figure 2 is a plan view, partly in section, taken parallel to the axis of the tube.
  • Figure 3 is a view showing the external appearance of the apparatus and one type of support for same.
  • An X-ray tube I is enclosed between two shelltype transformers 2 and 3 having magnet cores formed as sectors of a circle. On one side of the tube a sector-shaped opening 4 is formed for the passage of theX-rays and on the other'side an opening 5 of the same shape is formed which may serve for the attachment of supporting members.
  • Trapezium-shaped high tension coils 6 and 1 located in the windows of the transformers, each supply half the operating voltage of the X-ray tube.
  • One of these coils has a winding for the heating voltage of the incandescent cathode.
  • the primary windings are located directly around the central legs 8 and 9, the primary winding visible in Figure 1 being denoted by I 0.
  • a space which is filled with insulating material II For the purpose of insulation, there is left in the transformer windows outside of the windings, a space which is filled with insulating material II.
  • the two transformers and the X-ray tube are surrounded by a common metal housing 12 provided with a centering tube [3 arranged in front of a window Id of the X-ray tube.
  • One of the ends of the high-tension coils B and 1 is connected to the iron core of the transformer, this connection not being shown in the figure.
  • the outer ends of the coils are connected by means of insulating conductors l 5 and I6 (see Fig. 2) to the terminals of the tube.
  • the tube I has a central portion I! of metal preferably of ferro-chrome, which bears directly against the transformer core.
  • metal preferably of ferro-chrome
  • X-ray tubes of other types in which it is possible to keep the middle portion of the tube surface at the same potential may also be used.
  • 'By an equipotential Wall portion should therefore not only be meant a metal portion of the wall itself.
  • apparatus may be supported from a stand in different manners, for example, as shown in Fig; 3 by a bracket l8 secured to the transformer.
  • a handle l9 facilitates the rotation about the axis 20 passing through the focal spot of the tube.
  • the apparatus represented is particularly suitable for dental purposes to' which, however, the possibility of application is not restricted.
  • X-ray apparatus may also be employed for testing materials, e. g. crystalline bodies.
  • the tube may be provided for this purpose with two diametrically opposite windows so that a beam of rays may emerge from the apparatus through both the chamber 4 and the chamber 5' with the'result that two objects can be tested simultaneously.
  • the chambers are excellently suitable in this case for housing therei cameras for taking the photographs. 7
  • An X-ray apparatus comprising an X-ray tube having an equipotentialwallportion, a hightension supply transformer for said tube and assembled withthe tube to form a unit therewith, and supply leads for said tube connected to the output ends of said transformer, said transformer having a magnetic core consisting of parallel laminations, said X-ray tube being arranged with its longitudinal axis perpendicular to the plane of said laminations and bearing with said wall portion against said core without interposed hightension insulation.
  • An -X-ray apparatus comprising an X-ray tube having a cylindrical envelope comprising an annular metal portion and vitreous portions sealed to the edges of said metal portion, a high-tension transformer for said tube assembled with the tube to form a unit therewith, and supply conductors for said tube connected to the output ends of said transformer, said transformer having a magnetic core comprising parallel laminations, said annular metal portion being arranged with its axis perpendicular to the plane of the laminations and bearing against said core without interposed high-tension insulation.
  • an X-ray tube and a hightension supply transformer therefor said transformer comprising two series-connected transformer units having magnetic cores comprised of parallel laminations, and high-voltage supply leads for said tube connected to the output ends of said transformer units, said transformer units being symmetrically arranged on opposite'sides of the longitudinal axis of the 'X-ray tube and with the plane of the laminations perpendicular to said axis, said laminations bearing against the 'wall of said tube without interposed high-tension insulation, and a common housing surrounding said tube and transformer.
  • an X-ray tube and a hightension supply transformer therefor said transformer comprising two series-connected shelltype transformer units having magnetic cores,
  • said cores having central legs and consisting of sector-shaped laminations arranged parallel to a plane which is perpendicular to the longitudinalaxis of said X-ray tube, and high-voltage supply leads for said tube connected to the free output ends of said transformer units, said trans former units being arranged on oppositesides of said axis and with the central legs of the mag netic cores in alignment, and a common housing surrounding said tube and transformer.
  • an X-ray tube and a hightension supply transformer therefor said transformer comprising two series-connectedshelltype partial transformers having magnetic cores,
  • said cores comprising sector-shaped laminations arranged parallel. to a plane perpendicular to the longitudinal axis of saidX-ray tube, said partial transformers being symmetrically arranged on opposite sides of the longitudinal axis of the tube and said laminations being recessedat the top of the sector to form a cavity in which said X-ray, tube is fittingly mounted, and electric leads for said tube connected to the free output ends arranged with its longitudinal axis perpendicu- 50 lar to the plane ofsaid laminations and bearing at said wall portion against said core without interposed high-tension insulation.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • X-Ray Techniques (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
US707975A 1933-01-25 1934-01-23 X-ray apparatus Expired - Lifetime US2048237A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM122667D DE665460C (de) 1933-01-25 1933-01-25 Roentgenapparat

Publications (1)

Publication Number Publication Date
US2048237A true US2048237A (en) 1936-07-21

Family

ID=7330108

Family Applications (1)

Application Number Title Priority Date Filing Date
US707975A Expired - Lifetime US2048237A (en) 1933-01-25 1934-01-23 X-ray apparatus

Country Status (5)

Country Link
US (1) US2048237A (de)
DE (1) DE665460C (de)
FR (1) FR767587A (de)
GB (1) GB422018A (de)
NL (1) NL38751C (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611095A (en) * 1949-08-31 1952-09-16 Picker X Ray Corp Waite Mfg Shockproof head for x-ray apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611095A (en) * 1949-08-31 1952-09-16 Picker X Ray Corp Waite Mfg Shockproof head for x-ray apparatus

Also Published As

Publication number Publication date
NL38751C (nl) 1936-08-15
FR767587A (fr) 1934-07-19
DE665460C (de) 1938-09-26
GB422018A (en) 1935-01-03

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