X-ray apparatus with improved housing for components

Claim 1

X-ray apparatus comprising a pedestal, a table on said pedestal and movable thereon, a tube stand mounted for movement longitudinally of said table and carrying and X-ray tube, a bucky grid and X-ray film carrier below the table and movable with the tube stand, X-ray power unit and control means both housed within the pedestal so as to underlie the table; said power unit having components including a high voltage transformer having a primary winding and a secondary winding for providing operating voltage in the order of kilovoltage to said X-ray tube, said control means having components including an additional transformer providing a supply voltage for said primary winding, and said control means further having switch means for opening and closing a circuit from said additional transformer to said primary winding; means forming a conductive connection between components of the power unit and components of the control means, a control unit remote from said pedestal and having means including timer circuitry for initiating a cycle of operation that includes the closing and opening of said switch means, thereby to produce an X-ray exposure, said switch means and a part of said timer circuitry being in the housing in which said additional transformer is located, and an electrical cable connecting said control unit to said control means, the voltage in said cable and across components in said control unit being not in excess of about 30 volts.