Abstract: A coupling which serves to transmit torque from a shaft to the end portion of a rotary mandrel in a web winding or unwinding machine has a socket which is defined by a sleeve-like insert in the end portion of the shaft. The socket has a lateral inlet which can be closed by a pivotable gate, and the gate can be held in closed position by a wheel which is pivotable on the end portion of the shaft between operative and inoperative positions. The sleeve and the gate extend beyond one axial end of the wheel to define a relatively long socket for the end portion of the mandrel so that the latter can stand pronounced bending and other stresses.

Abstract: An apparatus which can adjust the position of one end portion of a reeling shaft which carries a reel for a web of paper, textile material or the like has a plate-like carrier for a bearing which rotatably mounts one end portion of the shaft, a support for the carrier, and a first slide which is secured to the underside of the carrier and extends into a central chamber of a second slide is movable in a chamber in the support. The first slide can move the second slide in response to rotation of an adjusting shaft which is mounted in the support and extends at right angles to the axis of the reeling shaft. The first slide can move with reference to the second slide in response to rotation of a sleeve having external threads mating with the internal threads of a nut which is affixed to the support.

Abstract: A deburring machine for plate- or sheet-like workpieces has a horizontal table on which a workpiece to be treated is supported during movement in parallelism with at least one of its elongated marginal portions. At least one set of coaxial cylindrical brushes is adjacent to the one marginal portion of the moving workpiece and the brushes form at least one pair of neighboring brushes which are driven to rotate in opposite directions whereby the metallic bristles of one brush treat the underside and the metallic bristles of the other brush treat the upper side of the one marginal portion. The frame of the machine can support two sets of coaxial brushes if the workpieces have parallel marginal portions. Such workpieces are advanced between the two sets of brushes so that one set treats one of the parallel marginal portions and the other set treats the other marginal portion.