Abstract: A method for protecting a computer-based classifier. The method includes determining a first similarity of a plurality of input data sets of a computer-based classifier, comparing the determined first similarity of the plurality of input data sets and a second similarity of a comparison corpus of input data sets and recognizing the possibility of an attack on the computer-based classifier when the first similarity of the plurality of input data sets and the second similarity of the comparison corpus deviate from one another in a predetermined manner.

Abstract: A shaped component includes a main metal sheet and at least one torsion tab. The torsion tab has a torsion region and a tab head. An extension of the torsion region perpendicular to a center longitudinal axis of the torsion tab is less than an extension of the tab head perpendicular to the center longitudinal axis of the torsion tab such that the tab head provides a clamping region for clamping a sheet metal component such as a cable guide component to the main metal sheet. Also, the shaped component can include at least two torsions tabs such that at least two sheet metal components can be clamped to the shaped component.

Abstract: An apparatus for grinding an elongated workpiece having a plurality of outer surfaces of revolution all centered on a common workpiece axis has a frame and a chuck on the frame for orienting the workpiece with the workpiece axis vertical and for rotating the workpiece about the workpiece axis. Two grinder drive motors on the frame diametrally flank the workpiece axis, are displaceable horizontally and radially of the workpiece axis, and each have a downwardly extending respective vertical drive shaft rotatable about a respective shaft axis, carrying a respective set of at least two vertically and axially spaced grinding wheels, and each having an unsupported and unbraced lower end. The grinders are displaced in respective diametrally opposite horizontal and radial directions for engaging the grinding wheels with the surfaces of the rotating workpiece grinder, such that all the surfaces of the workpiece can be ground simultaneously.

Abstract: A grinding wheel assembly has a support disk centered on an axis and having an outer edge and a pair of axially opposite faces. An annular abrasive ring is juxtaposed with the outer edge, and a flexible hinge formation joins the ring to the outer edge of the disk at one of the faces. An actuator body of controlledly radially variable dimension joins the ring to outer edge of the disk at the other of the faces for deforming the ring and flexing the hinge formation so as to vary a shape of an outer face of the ring radially of the axis. Thus with this system the exact shape of the outer face of the abrasive ring can be controlled remotely. The control can be very accurate, and can be monitored by sensors in a feedback system to ensure exact position of the outer ring surface.

Abstract: An apparatus for grinding a cam having an outer surface with outwardly convex and outwardly concave portions has a frame and a main drive on the frame for holding the cam and rotating it about a main axis. A pair of drive motors having respective output axes generally diametrally flank the main axis. Respective carriages carrying the drive motors are shiftable on the frame radially of the main axis. One of the motors is shiftable into an inner position in which the main axis extends through the one drive motor. Respective grinding wheels are rotatable by the motors about the respective axes, and the wheel of the one motor is of substantially smaller diameter than the wheel of the other motor.

Abstract: A workpiece having a planar face the workpiece is rotated about a workpiece axis substantially perpendicular to the planar workpiece face, and a grinding disk centered on a disk axis is rotated about the disk axis. The disk has an annular planar disk face perpendicular to and centered on the disk axis and an annular frustoconical disk face extending from an edge of the planar disk face, centered on the disk axis, and angled inward from the planar disk face. A portion of the annular face is oriented perpendicular to the workpiece axis and pressed against the planar workpiece face to premachine most of the planar workpiece face. Thereafter the disk is pivoted and oriented parallel the planar workpiece face to finish machine the planar workpiece face with the planar disk face.

Abstract: A grinding wheel assembly has a support disk centered on an axis and having an outer edge and a pair of axially opposite faces. An annular abrasive ring is juxtaposed with the outer edge, and a flexible hinge formation joins the ring to the outer edge of the disk at one of the faces. An actuator body of controlledly radially variable dimension joins the ring to outer edge of the disk at the other of the faces for deforming the ring and flexing the hinge formation so as to vary a shape of an outer face of the ring radially of the axis. Thus with this system the exact shape of the outer face of the abrasive ring can be controlled remotely. The control can be very accurate, and can be monitored by sensors in a feedback system to ensure exact position of the outer ring surface.

Abstract: A workpiece has two cylindrical workpiece surfaces centered on respective parallel axes and each flanked by a pair of arcuately rounded and annular corners also centered on the respective axes. Some of the corners have a small radius of curvature and others of the corners have a large radius of curvature. The workpiece is held and rotated about a main axis parallel to the axis of one of the workpiece surfaces. A pair of grinders have wheels generally diametrally flanking the workpiece and each having a central cylindrical outer wheel surface centered on the respective wheel axis and a pair of arcuately rounded edge and surfaces also centered on the respective wheel axis. Two of the edge surfaces are the large radius and the other two of the small radius.

Abstract: The invention relates to a method and a device for grinding cams of a camshaft (7) in a clamp with two grinding spindles (10, 11), wherein the cams or cam pairs are each arranged in a mirror image relative to the workpiece rotation axis (16), wherein the camshaft (7) is tensioned and rotated about the longitudinal axis thereof. In the device for carrying out the method, the camshaft (7) can be inserted into the workpiece receiver (6) from the side lying opposite the at least one back stay (15) by means of the loading device.

Abstract: An apparatus for grinding an elongated workpiece having a plurality of outer surfaces of revolution all centered on a common workpiece axis has a frame and means such as a headstock and tailstock for rotating the workpiece about the workpiece axis. Two grinders on the frame diametrally flank the workpiece axis and are displaceable radially of the workpiece axis. They each have a respective set of axially spaced grinding wheels. Actuator means serves for displacing the grinders in respective diametrally opposite directions for engaging the grinding wheels with the surfaces of the rotating workpiece grinder. The axial spacing and dimensions of the wheels correspond to the axial spacing and dimensions of the surfaces such that all the surfaces of the workpiece can be ground simultaneously.

Abstract: An apparatus for grinding a cam having an outer surface with outwardly convex and outwardly concave portions has a frame and a main drive on the frame for holding the cam and rotating it about a main axis. A pair of drive motors having respective output axes generally diametrally flank the main axis. Respective carriages carrying the drive motors are shiftable on the frame radially of the main axis. One of the motors is shiftable into an inner position in which the main axis extends through the one drive motor. Respective grinding wheels are rotatable by the motors about the respective axes, and the wheel of the one motor is of substantially smaller diameter than the wheel of the other motor.

Abstract: A workpiece having a planar face the workpiece is rotated about a workpiece axis substantially perpendicular to the planar workpiece face, and a grinding disk centered on a disk axis is rotated about the disk axis. The disk has an annular planar disk face perpendicular to and centered on the disk axis and an annular frustoconical disk face extending from an edge of the planar disk face, centered on the disk axis, and angled inward from the planar disk face. A portion of the annular face is oriented perpendicular to the workpiece axis and pressed against the planar workpiece face to premachine most of the planar workpiece face. Thereafter the disk is pivoted and oriented parallel the planar workpiece face to finish machine the planar workpiece face with the planar disk face.

Abstract: A machining apparatus has a vertical support frame defining two machining stations spaced apart in a direction, holders in the stations for rotating respective workpieces each about a respective station axis, and a transfer device for loading rough workpieces into the holders and for taking finished workpieces out of the holders. A single machining tool can be shifted in the direction between one position engaging the workpiece in one of the stations and out of engagement with the workpiece in the other of the stations and another position engaging the workpiece in the other station and out of engagement with the workpiece in the one station.

Abstract: A workpiece has two cylindrical workpiece surfaces centered on respective parallel axes and each flanked by a pair of arcuately rounded and annular corners also centered on the respective axes. Some of the corners have a small radius of curvature and others of the corners have a large radius of curvature. The workpiece is held and rotated about a main axis parallel to the axis of one of the workpiece surfaces. A pair of grinders have wheels generally diametrally flanking the workpiece and each having a central cylindrical outer wheel surface centered on the respective wheel axis and a pair of arcuately rounded edge and surfaces also centered on the respective wheel axis. Two of the edge surfaces are the large radius and the other two of the small radius.

Abstract: The invention relates to a method and a device for grinding cams of a camshaft (7) in a clamp with two grinding spindles (10, 11), wherein the cams or cam pairs are each arranged in a mirror image relative to the workpiece rotation axis (16), wherein the camshaft (7) is tensioned and rotated about the longitudinal axis thereof. In the device for carrying out the method, the camshaft (7) can be inserted into the workpiece receiver (6) from the side lying opposite the at least one back stay (15) by means of the loading device.

Abstract: A machining apparatus has a vertical support frame defining two machining stations spaced apart in a direction, holders in the stations for rotating respective workpieces each about a respective station axis, and a transfer device for loading rough workpieces into the holders and for taking finished workpieces out of the holders. A single machining tool can be shifted in the direction between one position engaging the workpiece in one of the stations and out of engagement with the workpiece in the other of the stations and another position engaging the workpiece in the other station and out of engagement with the workpiece in the one station.

Abstract: A method serves for circumferential grinding of radially non-circular workpieces, in particular for grinding cams (15) or polygons. The workpiece is rotated about a first second axis (13) extending at an angle, preferably of 90.degree., relative to the first axis (18). Starting out from a raw contour, the material at the surface of the workpiece (15) is removed along spiral-shaped paths of a point of action (20), by a plurality of steps corresponding each to one rotation of the workpiece, until intermediate contours and finally a finished contour are obtained, this being achieved by rotating and/or advancing the workpiece and the grinding wheel (11) in a controlled way, in response to data records. Every time an intermediate contour is reached, a new data record is called up for the next rotation of the workpiece. One measures continuously a predetermined absolute dimension (R.sub.Gist) of the workpiece and derives therefrom the existing deviation (.increment.R.sub.G) from a given setpoint value (R.sub.