Abstract: A sports device with runners, in particular an ice skate, includes an exchangeable adapter with which the composite sliding blade is equipped. The running sole has a profiled slide strip made of a resilient material and side faces are provided with a negative cutting angle. The adapter is connected releasably to the holder of the sports device. The contour profile, namely the curvature of the sliding face of the profiled slide strip, is defined by the geometry of the exchangeable adapter. The sliding blade is clipped onto the adapter using tongues provided on the free end of the sliding blade and the locking lugs or locking slits provided on the adapter. The sliding blade has a perforation, such that the lower part of the sliding blade can be torn off without tools when changing the sliding blade, and a new sliding blade can be clipped on.

Abstract: A sports device with runners, in particular an ice skate, includes an exchangeable adapter with which the composite sliding blade is equipped. The running sole has a profiled slide strip made of a resilient material and side faces are provided with a negative cutting angle. The adapter is connected releasably to the holder of the sports device. The contour profile, namely the curvature of the sliding face of the profiled slide strip, is defined by the geometry of the exchangeable adapter. The sliding blade is clipped onto the adapter using tongues provided on the free end of the sliding blade and the locking lugs or locking slits provided on the adapter. The sliding blade has a perforation, such that the lower part of the sliding blade can be torn off without tools when changing the sliding blade, and a new sliding blade can be clipped on.

Abstract: Winter sports gear, particularly an ice skate, include runners to which a sliding blade (3) is detachably connected. The sliding surface (1) of the sliding blade (3) is provided with at least one, in this case three, profiled grooves (4) that extend in the direction of travel. Bulge-type dams (5) extend on both sides of the profiled grooves (4).

Abstract: Winter sports gear, particularly an ice skate, include runners to which a sliding blade (3) is detachably connected. The sliding surface (1) of the sliding blade (3) is provided with at least one, in this case three, profiled grooves (4) that extend in the direction of travel. Bulge-type dams (5) extend on both sides of the profiled grooves (4).

Abstract: The invention relates to a skating sports device, in particular skating boot, comprising an exchangeable blade holder (14), connected to a boot by means of sole and heel plates (4 and 5). An exchangeable blade (1) may be clipped in the exchangeable blade holder (14), which is held under tension in the front and rear region by locking clip buttons (2) which may be operated without tools. A torsion duplex cross (3), formed by torsion and flexion bars (3a and 3b) absorbs the torsion and flexional forces occurring during skating and neutralizes the same.

Abstract: A system for performing machining operations on different portions of workpieces comprising a plurality of workstations including a lathe disposed along a predetermined path, in the present instance, a circular path. A turntable supports a plurality of workpiece chucking devices equi-spaced circumferentially around the turntable. The turntable rotates relative to the workstations to position a workpiece chucking device at each workstation permitting different machining operations to be performed on workpieces simultaneously. The chucking devices are moveable on the turntable in a radial direction to present the workpieces to the various tools at the workstations. The workpiece chucking devices include spindle motors and means for synchronizing the speeds of the spindle motors of the chucking devices with the lathe motor.