Abstract: The invention relates to a process for producing a hollow profiled section (7) with bulges (37) which is provided with an end-side closure cover (7), and to a jack bracket (32) produced by means of this process. To allow simple production of an expanded hollow profiled section (6) provided with a closure cover (7) and to demonstrate a jack bracket (32) produced by this process which entails only a low level of manufacturing outlay yet nevertheless ensures a high ability to withstand mechanical stresses, it is proposed that a cup-like cover (7) be pushed into the hollow profiled section (6), with the hollow profiled section (6) being placed into a hydroforming die (1). After the latter has then been closed, an axial ram (8) is introduced into the cover (7) and into the end of the hollow profiled section, in such a manner that the rim side of the cover (7) is radially pressed to the surrounding hollow profiled section (6). The hollow profiled section (6) is then widened by means of hydroforming pressure.

Abstract: The invention relates to a method for producing a peripherally closed hollow profiled element by means of internal high-pressure forming, a hollow elongated blank (5) being inserted into an internal high-pressure forming tool (1), and the blank (5) located completely inside the forming tool (1) after the insertion being compressed in a region lying between its ends (9, 10) during the closing operation of the forming tool (1), after which the compressed blank (5) is expanded into the final shape of the hollow profiled element by means of fluidic internal high pressure.

Abstract: In an exemplary embodiment, the measuring arrangement including the x-ray tube and radiation receiver, is capable of being locked against rotation, and the patient support is capable of being locked against longitudinal movement. The x-ray beam is selectively limited in extent by means of an adjustable diaphragm. In the case of a locked measuring arrangement and patient support and a limited x-ray beam, the measured values of the radiation receiver are detected by a computer which, from them and from information regarding the cross section of a vessel to be examined, determines the concentration and/or quantity of an x-ray contrast agent therein. The information regarding the cross section is obtained with a normal computer tomographic scanning operation.

Abstract: A planigraphic X-ray apparatus for the preparation of transverse tomographic or planigraphic images of an exposure object, which consists of an X-ray measuring arrangement including an X-ray source generating a polyenergetic X-ray beam penetrating through the exposure object, with a radiation receiver which determines the radiation intensity of the X-radiation as a reference value prior to its ingress into the object, and a further radiation receiver which determines the radiation intensity behind the object in the direction of the radiation as attenuated values, through scanning of the projected X-ray beam at sequential equidistant points, a comparator element which forms a measured magnitude from the two values, as well as a drive arrangement for the measuring arrangement, consisting of a pivot mounting for producing rotational movements of the X-ray measuring arrangement through small equidistant angular amounts about a rotational axis generally coincident with the symmetrical longitudinal axis of the expo

Abstract: A tomographic X-ray apparatus for the producing of transverse laminographic or tomographic images, constituted of an X-ray measuring arrangement having an X-ray source which generates an X-ray beam, whose cross-sectional expanse or spread perpendicular to the X-rayed layer is equal to the layer thickness, and in parallel to the layer is equal to the layer thickness or is lesser than the latter; and including a radiation receiver which measures the radiation intensity behind the object at successive equidistant points, as well as a drive installation for the measuring arrangement, consisting of a pivot mounting for producing rotary movements of the X-ray measuring arrangement through small equidistant angular increments about a rotational axis which is approximately coincident with the symmetrical longitudinal axis of the exposure object; as well as a slide carriage located on the pivot mounting for producing a linear scanning movement (scanning lift) of the X-ray measuring arrangement perpendicular to the dir

Abstract: A patient's support installation for a transverse axial scanning or tomographic X-ray apparatus utilized for producing tomographic X-ray images, in particular of the skull as a laminagraphic object; consisting of a base or pedestal portion having a frame and a horizontally displaceable table plate which is supported on the latter; a holding arrangement encompassing the laminagraphic object on all sides thereof, fastened to the head end of the table plate, which possesses an aperture into which there is introducible the laminagraphic object to a desired depth; as well as means for fixing the skull in the desired position; and an X-ray transmitter or generator for generating an X-ray beam transilluminating the holding arrangement together with the laminagraphic object at the elevation of the laminagraphic plane, and for scanning the laminagraphic object from different directions in the laminagraphic plane; as well as including an X-ray measuring arrangement which is operatively connected with the X-ray generato

Abstract: An X-ray diagnostic installation for producing a transverse layer or planigraphic image including a first X-ray measuring arrangement having X-ray source which generates an X-ray beam whose extent of cross-sectional diffusion perpendicular to the layer is equal to the layer thickness, and equal to or less than the layer thickness in parallel to the layer, and a radiation receiver which measures the radiation intensity behind the object at successive equidistantly located points, as well as a drive arrangement for the measuring arrangement adapted to generate a linearly guided scanning motion extending in perpendicular to the direction of the central beam across the total expanse of the object, in an alternating sequence with a rotational motion about small equidistant angles, whose sum comprises 180.degree., and about a center of revolution lying approximately in the central portion of the layer surface on the main radiation beam.