Abstract: A space-saving centerless grinding machine having high operability is obtained by devising the configuration of component units around the basic configuration of the machine. A dressing means for performing a dressing process for a grinding wheel and a regulating wheel comprises a single dressing unit. The dressing unit is located at a lower position between the grinding wheel and the regulating wheel, and thus eliminates the need for right and left dresser spaces for grinding wheels that have most seriously affected the breadthwise dimension of a conventional centerless grinding machine, leading to space saving and a considerable reduction in the breadthwise dimension of the centerless grinding machine.

Abstract: An X-ray imaging apparatus has an X-ray tube that irradiates an X-ray to a subject, an flat panel detector (FPD) that takes an X-ray image on the basis of the X-ray transmitted through the subject, a real-time image synthesis element that synthesizes an image by connecting in turn an image of a plurality of strip-shape X-ray images concurrently taken while letting the X-ray tube and the FPD move relative with respect to the subject, and a real-time image monitor that displays an intermediate image taken by the FPD and is synthesized in turn by the real-time image synthesis element.

Abstract: A space-saving centerless grinding machine having high operability is obtained by devising the configuration of component units around the basic configuration of the machine. A dressing means for performing a dressing process for a grinding wheel and a regulating wheel comprises a single dressing unit. The dressing unit is located at a lower position between the grinding wheel and the regulating wheel, and thus eliminates the need for right and left dresser spaces for grinding wheels that have most seriously affected the breadthwise dimension of a conventional centerless grinding machine, leading to space saving and a considerable reduction in the breadthwise dimension of the centerless grinding machine.