US1957436A - X-ray apparatus - Google Patents

X-ray apparatus Download PDF

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Publication number
US1957436A
US1957436A US285392A US28539228A US1957436A US 1957436 A US1957436 A US 1957436A US 285392 A US285392 A US 285392A US 28539228 A US28539228 A US 28539228A US 1957436 A US1957436 A US 1957436A
Authority
US
United States
Prior art keywords
tube
container
energizing
ray
containers
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
US285392A
Other languages
English (en)
Inventor
Julius B Wantz
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 X Ray Corp
Original Assignee
General Electric X Ray Corp
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 General Electric X Ray Corp filed Critical General Electric X Ray Corp
Priority to US285392A priority Critical patent/US1957436A/en
Priority to NL44356A priority patent/NL44356B/xx
Priority to BE357686D priority patent/BE357686A/fr
Priority to FR671924D priority patent/FR671924A/fr
Priority to GB18205/29A priority patent/GB313568A/en
Application granted granted Critical
Publication of US1957436A publication Critical patent/US1957436A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Definitions

  • the present invention has to do with X-ray apparatus and relates particularly to a new construction for oil-immersed X-ray units.
  • the invention has to do with the provision of oil-immersion or insulation for a tube, the tube and its insulation being disposed in one container, and means for connecting such tube so immersed to a second container, in which disposed the X-ray tube energizing elements,
  • Figure 1 is a general schematic and perspective outline of the entire device and shows a separable tube holder in position above a transformer container, the transformer elements and other energizing equipment being indicated diagrammatically;
  • Figure 2 is a sectional elevation of the tubeholder structure shown in Figure 1;
  • Figure 3 is a section taken along the line 3-3 in Figure 2 viewed in the direction of the arrows;
  • Figure 4 is another embodiment of the invention in which X-ray protection forms a part of the tube envelope
  • Figure 5 is a further embodiment of the invention and in which the X-ray protection is ob tained by mounting the X-ray tubes within an envelope made of X-ray protective material.
  • a source of power is indicated by the numeral 10. Conduits lead from such source of power 10. There is disposed in association with said conduits a main switch 11 which is adapted to control the energizing of the apparatus from the source of power.
  • any suitable control means may be employed, and in the present instance an autotransformer 12 is connected across the lines from the source of power 10.
  • a wire forming a variable tap on said auto-transformer 12 is designated 13, and it is through the adjustment of this variable tap that the potential across the primary of a hightension transformer, hereinafter to be referred to, may be varied.
  • a common connector 14 forms a return circuit for the energizing of both a high-tension and a filament transformer.
  • a conduit 15 connected at 9 one end to a rheostat 16 and at the other end to one terminal of the primary of a filament current transformer is disclosed.
  • Said rheostat 16, or any other regulatory de vice which may be substituted therefor, is intended to provide means for varying the potential across the primary of such filament transformer, said variations to control the amount of current passing through an X-ray tube later to be mentioned in a manner well known in the art.
  • a high-tension transformer 1'7 is disclosed. It i comprises a high-tension transformer secondary 18, and a high-tension transformer primary 19. There is also provided a filament transformer 20, comprising a secondary 21 and a primary 22, 1 0
  • An X-ray tube is shown at 23, the numeral 24 being used to indicate the anode of such X-ray tube, and 25 the cathode thereof.
  • the connections from the secondary of the high-tension transformer to the anode of the tube 23 is designated 26, while a common connection between the secondary 18 of said hightension transformer 17, and the other terminal thereof, and one terminal of the secondary of said filament transformer, is designated 27.
  • a conduit 23 is connected between wire 27 and one terminal of the cathode 25 of the X-ray tube.
  • a housing or box This may comprise a base 30, which base should be opaque to X- ight. Secured to the said base 30 in any suitable manner but with sufiicient closeness as to prevent oil-seepage, is a cover or container 31 which with the said base 30 completely encloses the X-ray tube 23, and provides means for containing the oil insulation to be used in association with such tube. A seal between base 30 and cover 31 is provided and for convenience such seal is marked 37.
  • a second container 32 having a cove 33.
  • studs 34 which are employed for the purpose of positioning the tube-container or tubecontainer base 30 hereinabove referred to.
  • apertures 35 In said tube-container base 30 are apertures 35 to receive the studs 34.
  • Thumb nuts for locking the tube-container in position upon the transformer container are shown at 36.
  • a window 38 transparent to X-light is within the container 31, which is a window 38 transparent to X-light, but which is oil-tight.
  • window 33 may be formed in a number of ways. It may be produced as is shown in the present instance by cutting an aperture in the case 31 and placing therein a material transparent to X-light. In other instances, it may be made by reducing the cross-section of material forming the case 31 to such a thinness that it is transparent to X-light. Divers other means may be employed for producing such a window.
  • a sylphon device 39 which is adapted to take up the expansion of the oil in container 31 and surrounding the tube 23. The heat of such tube is transmitted to the oil within the container 31 through the anode 24 of the tube, and shortly there is a marked expansion of such oil so that a means for compensating for such expansion is necessary.
  • An anode insulator 40 is used upon cover 33 for the container 32.
  • a somewhat similar but not identical cathode insulator ii is also employed upon said cover 33. Fhe anode lead from the high-tension transformer as it passes through said insulator is designated by the numeral 42 when passing through the insulator 40, and the cathode lead-in wires l3 and 44 are so designated when passing through said cathode insulator 41.
  • Each of these insulators 40 and 41 is of the conical type, and made by a plurality of corrugations to increase creepage distance across the insulator.
  • Said insulators 40 and 41 should be accurately placed upon said cover 33 and should bear a definite and fixed relation to the studs 34.
  • anode insulator 45 Within the bottom of base 36 is an anode insulator 45, and a cathode insulator 46. Said insulators are accurately disposed and bear a complemental relation to the insulators 40 and 41 upon the top 33. When brought together, that is, when the base 30 is pressed downwardly upon the cover 33 with the studs 34 registering within the apertures 35, the insulators 46 and 41 and 45 and 46 hereinabove referred to should register closely one with another.
  • anode insulator 45 Through the anode insulator 45 is a conductor 47, having at its underside a button or contact plate 51. Through the insulator 46 are two conductors 48 and 49, each of which has at its end contact plates 51. At the head of lead-in conductors 43, and 44, are contact points or plates 50, each one of which is adapted to properly register with the proper plate or contact 51 in the opposed insulating member.
  • a conductor 5'7 From the connector 47 to the anode 24 is a conductor 5'7. Intermediate the conductors 48 and 49 and the cathode 25 of the tube 23 are two conductors 53 and 59 for carrying the filament current, one of said conductors, 58 or 59, also forming a conductor for the hi h-tension current which is impressed across the tube 23.
  • a screw-on cathode terminal may be employed upon the tube 23, such screw-on terminal being designated 60.
  • Such a terminal has properly disposed therein and insulated one from the other two binding posts, which posts facilitate rapid connection interm diate the conduits and 59 and the tube.
  • brackets 61 are disposed within the container 31. These form a support for the X-ray tube 23 wher :y it is held an adjusted position properly removed from the walls of the casing 31 and the base 36.
  • the clamps 61 are common in the industry and are generally of some dielectric material, such as wood, bakelite, or fiber.
  • FIGs 2 and 3 shown a housing comprising a material opaque to X-ray.
  • any tube may be employed.
  • a material transparent to X-light is shown.
  • the tube 23 in such instance comprises a bulb of lead glass 63, having therein a window 64 made of lime glass whereby to permit the passage of X-rays.
  • the window 64 is arranged to register with window 38 in casing 31.
  • FIG 5 a container of similar material, transparent to X-light, is disclosed.
  • the tube 23 in such instance is completely encased, except for an opening registering with the window 38, in lead glass shiel s designated 65, such shields comprising two parts adapted to be fastened together through flanges arranged their greatest diameter, such shields now being more or less common in the X-ray industry.
  • the clamps 61 instead of coming in direct contact with the tube 23, surround the lead glass shield 65, the shape of such shield corresponding substantially to the shape of the tube 23 except for the flat portion thereof adjacent the window 38. Flanges through which fastening members pass are shown at 66 on the inner ends of such shields.
  • the thumb nuts 36 When so registering, the thumb nuts 36 may be screwed into position, and the device secured in electrically connected position.
  • a tube may be quickly changed, when desired, by releasing such thumb nuts and removing the casing 31 with its contents, another tube 23 contained in another casing 31 being adapted to be instantly substituted for the first-referred to housing.
  • two independent containers including complemental walls, one container enclosing an X-ray tube, another container enclosing X-ray tube energizing instrumentalities, and complemental contacts on said containers whereby said X-ray tube and said X-ray tube energizing instrumentalities are electrically connected when said complemental walls are in physical contact, the contacts on the X-ray tube container being electrically connected to the anode and cathode of said tube and the contacts on said tube energizing instrumentalities enclosing container being electrically connected to said tube energizing instrumentalities.
  • two independent containers including complemental walls, adapted to be brought into substantial engagement when said apparatus is in operable condition, one container enclosing an X-ray tube, another container enclosing tube energizing instrumentalities, and contacts upon each of said containers, the contacts on one container being adapted to engage upon the contacts of the other container when said complemental walls are in substantial engagement, the contacts on the X-ray tube container being electrically connected to the anode and cathode of said tube and the contacts on said tube energizing instrumentalities enclosing container being electrically connected to said tube energizing instrumentalities.
  • X-ray apparatus comprising an X-ray tube, a vessel enclosing said tube and filled with insulating oil, tube energizing instrumentalities, a vessel enclosing said tube energizing instrumentalities and filled with oil, said vessels including complemental walls adapted to be brought into substantial engagement one with another and complemental contact means intermediate said vessels when said complemental walls are in substantial engagement, the contact means on the X-ray tube container being electrically connected to the anode and cathode of said tube and the contact means on said tube energizing instrumentalities enclosing container being electrically connected to said tube energizing instrumentalities.
  • X-ray apparatus comprising two independent containers including complemental walls adapted to be brought into substantial engagement preliminary to the operation of said X-ray apparatus, one of said containers enclosing an X-ray tube, another of said containers enclosing tube energizing instrumentalities, complemental contacts on said containers, said contacts being operable to establish electrical connection between said tube and said tube energizing instrumentalities when said complemental walls are in substantial engagement, and means upon one of said containers engaging the other container for securing said containers one to another with said complemental walls in engagement, the contacts on the X-ray tube container being electrically connected to the anode and. cathode of said tube and the contacts on said tube energizing instrumentalities enclosing container being electrically connected to said tube energizing instrumentalities.
  • X-ray apparatus comprising two independent containers, one of said containers enclosing an X-ray tube, another of said containers enclosing tube energizing instrumentalities, contacts on said containers, the contacts on the X-ray tube enclosing container being electrically connected to conduits leading to said tube, and the contacts on said tube energizing instrumentalities container being electrically connected to conduits from said tube energizing instrumentalities, spring means upon certain of said contacts, and means cooperating with said containers for securing said containers in engagement with said spring means compressed.
  • X-ray apparatus comprising a plurality of containers, an X-ray tube in one of said containers, tube energizing instrumentalities in another of said containers, contacts on said containers, there being conduits between the contacts on said X-ray tube container and said X-ray tube and conduits in electrical connection with the contacts on said tube energizing instrumentalities container and the tube energizing instrumentalities therein, and complemental means on said containers for guiding one of said containers into contact contacting position upon the other of said containers.
  • X-ray apparatus comprising a plurality of containers, an X-ray tube in one of said containers, tube energizing instrumentalities in another of said containers, complemental guide means on said containers, and complemental contacts on said containers, the contacts on said X-ray tube container being electrically connected to conduits leading to said X-ray tube and the contacts upon said tube energizing instrumentalities container being in electrical connection with conduits leading to said tube energizing instrumentalities, the engagement of said complemental guide means positioning one of said containers on the other thereof with said complemental contacts disposed for electrical connection therebetween.

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  • X-Ray Techniques (AREA)
US285392A 1928-06-14 1928-06-14 X-ray apparatus Expired - Lifetime US1957436A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US285392A US1957436A (en) 1928-06-14 1928-06-14 X-ray apparatus
NL44356A NL44356B (nl) 1928-06-14 1929-01-03 in olie geplaatst roentgentoestel
BE357686D BE357686A (fr) 1928-06-14 1929-01-26 appareil à rayons x à bac d'huile
FR671924D FR671924A (fr) 1928-06-14 1929-03-22 Appareil à rayons chi immergé dans l'huile
GB18205/29A GB313568A (en) 1928-06-14 1929-06-13 Improvements in oil-immersed x-ray apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US285392A US1957436A (en) 1928-06-14 1928-06-14 X-ray apparatus

Publications (1)

Publication Number Publication Date
US1957436A true US1957436A (en) 1934-05-08

Family

ID=23094041

Family Applications (1)

Application Number Title Priority Date Filing Date
US285392A Expired - Lifetime US1957436A (en) 1928-06-14 1928-06-14 X-ray apparatus

Country Status (5)

Country Link
US (1) US1957436A (fr)
BE (1) BE357686A (fr)
FR (1) FR671924A (fr)
GB (1) GB313568A (fr)
NL (1) NL44356B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971946A (en) * 1974-12-12 1976-07-27 American Radiologic Systems Inc. X-ray apparatus with improved housing for components
DE19500733B4 (de) * 1994-01-31 2006-08-17 Siemens Ag Röntgenstrahleranordnung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2622757B1 (fr) * 1987-10-30 1989-12-08 Thomson Cgr Dispositif emetteur de rayons x de type compact
FR2622758B1 (fr) * 1987-10-30 1990-04-27 Thomson Cgr Ensemble radiogene a protection integrale contre les rayonnements de fuite

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971946A (en) * 1974-12-12 1976-07-27 American Radiologic Systems Inc. X-ray apparatus with improved housing for components
DE19500733B4 (de) * 1994-01-31 2006-08-17 Siemens Ag Röntgenstrahleranordnung

Also Published As

Publication number Publication date
NL44356B (nl) 1932-01-15
FR671924A (fr) 1929-12-20
BE357686A (fr) 1929-02-25
GB313568A (en) 1930-07-10

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