Abstract: Disengaging device for a clutch includes support means, an anti-friction bearing having one bearing race predisposed to act upon and co-rotate with disengaging means of the clutch and another bearing race predisposed not to co-rotate with the clutch disengaging means and being actable upon by the support means through a contact surface so as to effect a disengaging movement, and means providing a resistance to displacement in radial direction effective between the support means and the antifriction bearing, the means providing a resistance to displacement comprising at least one bracing or holding member elastic in axial direction, the bracing member being clamped, on one hand, by bracing profile means formed in one of the non-rotating bearing race and the support means so as to be braced directionally neutral in axial direction, the bracing member effectively engaging, on the other hand, the other of the non-rotating bearing race and the support means so as to hold the non-rotating bearing race and the suppo

Abstract: Friction clutch wherein a cup spring, on the one side thereof, is braced against one of the clutch components other than the pressure plate thereof and, on the other side thereof, loads a pressure plate, torque transmission between the pressure plate and the one of the clutch components other than the pressure plate and lifting of the pressure plate being effected by a plurality of leaf springs which ensure relative movement between the pressure plate and the other of the clutch components at least over the operating travel range of the clutch amounting to the engagement and disengagement travel and the wear travel of the clutch disk, includes top means projecting into the travel path of the leaf springs and being engageable thereby for stopping travel thereof at least when the pressure plate has reached substantially the position thereof corresponding to the maximum wear travel thereof.

Abstract: Clutch disk assembly includes a hub, a friction lining support disk coaxially surrounding the hub, the friction lining support disk and the hub having mutual relative torsional play force storage means operatively connected between the hub and the friction lining support disk and effective against relative torsion therebetween load friction means ineffective over a first given range of torsional play between the hub and the friction lining support disk and effective over a second given range of the torsional play, the load friction means comprising a friction member and friction means effective over the second given range of torsional play, at least one force-storage device compressible over the second given range of the torsional play being effective through the friction member, and a pair of disk-like members disposed in axial spaced relationship on the hub and fixed thereto against relative rotation therewith, the load friction means being disposed in the axial space between the pair of disk-like members.

Abstract: Drive mechanism for heavy vehicles such as tractors, construction machinery and the like, wherein one of two clutches is selectively blocked by a shifting device so as to prevent engagement and disengagement thereof, while the other of the two clutches is released so as to be engageable and disengageable, and wherein an output shaft of a transmission is drivable by the one clutch in one rotary direction, and the same output shaft is drivable by the other clutch in the other rotary direction, a set of reversing gears being connectible to the transmission through the other clutch, includes a control clutch disposed in force transmission path between the other clutch and the output shaft of the transmission, and including an additional output shaft for an auxiliary drive, and means for shifting power flow selectively to the transmission and to the additional output shaft.

Abstract: Clutch disk including at least two damping devices disposed in an energy transfer path between a friction lining support and a respective output member, one of the damping devices being effective over a given rotary angle by itself, and the other of the damping devices being effective over a further rotary angle either without the given rotary angle of the one damping device or in addition thereto, both of the output members being profiled parts matching the other mating profiled parts, the profiled part of the other of the damping devices being a hub member having torsional play with respect to the profiled part mating therewith which corresponds to the torsional play of the one damping device, the output member for the one damping device being within the axial extension of the hub member for the other damping device, and extending in radial direction through the hub member, both of the output members matching with a common mating profile.

Abstract: Variable pulley for a drive acting through a tension medium strand includes two pulley parts, at least one of which is displaceable in axial direction relative to the other, each of the pulley parts having a running surface for a tension medium strand, at least one of the pulley parts being mounted on a shaft-like member, at least two systems having means mutually connecting the pulley parts to one another, the at least two systems being axially spaced from one another and affording axial displacement of the at least one pulley part, the systems, on the one hand, being firmly linked to the at least one pulley part and, on the other hand, having means for linking the systems to a part of a drive which is to act through a tension medium strand, the systems being synchronously and concentrically rotatable with the part of the drive.

Abstract: A reversing mechanism for two clutches wherein one of the clutches is alternately blocked in lifted condition, comprising actuating means movable over a disengaging travel path, for selectively engaging and disengaging the non-blocked other clutch, means comprising a stepping mechanism and a reversing device, the actuating means being movable beyond the given actuating path and over a reversing path for actuating the means comprising a stepping mechanism and a reversing device, and a lifting device connected to the actuating means and actuable thereby for effecting engagement and disengagement of the non-blocked clutch over the disengaging travel path (I-II), and at least substantially over the reversing path (II-III) and in a force transmission path between the actuating means and disengagement member of the clutches, the lifting device being effective so that at least over partial ranges of the reversing path (II-III) a change in at least one of the path direction and the force transmission occurs, the lift