Abstract: A frictionally locking shaft/hub clamping connection (1) having at least two cone clamping rings (4, 5) which bear against one another on their cone faces (4a, 5a) and can be pushed onto one another axially by way of clamping elements (6), the radial forces which are produced bringing about a frictionally locking connection between the shaft (2) and the hub (3). The cone faces (4a, 5a) of the clamping rings (4, 5) which bear against one another have a non-round cross section which differs from the circular shape.

Abstract: A sheet metal shears for metal sheets and plates with a highly sensitive surface comprises: a sheet metal infeed platen with a lower blade secured to the edge thereof extending transversely to the direction of sheet advance; a sheet stop disposed in spaced relation from the lower blade in the direction of sheet advance; a movable top blade which in cooperation with the lower blade cuts sheet metal strips from the metal sheet which is advanced over the lower blade up to the sheet stop; and a support means for the sheet metal strips including a movable table which may be extended to support said strips prior to and during the cutting operation in a support plane which is a continuation of the surface of the sheet metal infeed platen and which may be retracted to enable the cut metal strips to fall vertically after they are cut from the sheet.