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    X-ray apparatus
    44.
    发明授权
    X-ray apparatus 失效
    X光装置

    公开(公告)号：US2121630A

    公开(公告)日：1938-06-21

    申请号：US7899436

    申请日：1936-05-11

    Applicant: GEN ELECTRIC X RAY CORP

    Inventor： GROSS MALVERN J ,  ATLEE ZED J

    IPC: H05G1/04

    CPC classification number: H05G1/04 ,  H05G1/025

    Abstract: 495,440. R÷ntgen-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. May 11, 1937, No. 13388. Convention date, May 11, 1936. [Class 39 (i)] [Also in Group XX] The apparatus comprises a metal casing enclosing an evacuated envelope containing a cathode, an anode and a rotor for rotating the anode, terminal connections associated with the envelope for impressing a high potential difference on the anode and cathode, an electromagnetic stator within the casing and encircling the envelope, and an oil filling in the casing surrounding the envelope and insulatingly separating the terminal connections and stator. In the form shown the envelope 10 contains a rotating anode as described in Specification 495,435 and a dual filament cathode assembly as described in Specification 495,441. The anode bearings are carried on a shaft 45 which projects through the end of the envelope 10, and carries a connection 49 engaged by a projecting stud 31 connected to the high tension cable 27 introduced through bushings 29, 30 attached to the cap portion 90 of the outer casing. This permits easy removal of the cap 90. For this purpose also the current supply for the stator is connected to terminals attached to the cap and engaged by spring contact members on the stator. The cathode connections are introduced through bushings 24, 26. The member 49 is carried on an insulator 50 attached to a semi-cylindrical shell 51, bolted to the stator 39 attached to the main casing 1. A sheath 70 of phenolic resin surrounds the envelope 10 and projects into the space between it and the stator. Lead shields 75, 78 are provided. The cone 20 is also lined with lead. A siphon bellows device 67 takes up expansion of the oil filling of the casing. In a modification the casing contains both tube and exciting transformers. Specification 14892/13, [Class 39 (i)], also is referred to.

    X-ray apparatus
    47.
    发明授权
    X-ray apparatus 失效
    X光装置

    公开(公告)号：US2387427A

    公开(公告)日：1945-10-23

    申请号：US46295442

    申请日：1942-10-22

    Applicant: GEN ELECTRIC X RAY CORP

    Inventor： ATLEE ZED J ,  FILMER JAMES C

    IPC: H05G1/04

    CPC classification number: H05G1/04 ,  H05G1/025

    Abstract: 599,726. X-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 18, 1943, No. 17065. Convention date, Oct. 22, 1942. [Class 39 (i)] [Also in Group XX] X-ray apparatus comprises a sealed casing forming a compartment containing an X-ray tube resiliently supported therein and electrically insulated therefrom by means comprising synthetic rubber material and surrounded by a gaseous insulating medium, such as a halogen derivative of an aliphatic hydrocarbon, adapted to be delivered into or displaced from the compartment through means located in either or both of two end coverplates attached to the casing, storage means for the gaseous insulating medium being attached to one end cover-plate and connected with and thermally insulated from the compartment to maintain a constant pressure therein. As shown in Fig. 2, the housing 11 contains an X-ray tube 13 comprising a rotating anode 15 and a cathode 17 mounted within a sealed envelope 19. An anode connection 21 and filament conductors 25 are provided. The anode may be rotated by the motor 27. The housing 11 has an opening 33 provided with an annular collar 35 forming an outwardly extending hood, and is closed by a cup-shaped plate 37. The housing 11 I is provided on the opposite side with chambers 43, 44 closed at one end and open at the other to receive cable terminals. The ends of the housing 11 are closed by plates 59, 60. The bracket 65 attached to lug 63 of the housing 11 has a circular aperture receiving a resilient neoprene disc, to which is secured by a bolt a moulded insulating bracket 85 carrying the anode connection 21. The cathode end of the tube is supported by a metal bracket 95 carrying a resilient neoprene disc having a central opening receiving the end of the cathode stem 29. A central opening in the cover-plate 59 is closed by a threaded plug 115, and a central opening in the cover-plate 60 is closed by a threaded fitting 119 having an opening containing a valve comprising a spring-pressed ball and closed by a threaded plug. The housing 11 may be charged with dichlorodifluoromethane or dichlorotetrafluoroethane through the valve in fitting 119, the plug 115 being removed to allow escape of displaced air. Alternatively, the air may be exhausted from the casing by connection of an exhaust pump to a threaded port 141 communicating through the duct 139 with the opening 137 adapted to be closed by the plug 115. The fitting 119 may be kept closed or replaced by a solid plug and the exhausting and charging effected entirely through the duct 139. An auxiliary casing 143, Fig. 6, may be provided with a pipe 145 adapted to be secured in the boss 113 of the cover-plate 60, the other end of the pipe 145 extending within casing 143 to form a liquid trap preventing passage of liquid to the casing 11. The casing 143 is fitted with a charging opening 147 closable by a plug 149 carrying a valve member 151 controlling gas flow through the pipe 145. The pipe 145 is of non-conducting material to thermally insulate the casing 143 from the casing 11. Specifications 555,013, [Group XX], and 557,631 are referred to.

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