Abstract: A drive aft has two universal joints. The universal joint (1) is connected to a sliding sleeve (9). The other universal joint carries a sliding journal (8). The sliding journal (8) and the sliding sleeve (9) engage one another in a rotationally fast way via teeth (11, 22). The teeth (11, 22) are longitudinally displaceable relative to one another in the direction of a longitudinal axis (10). In order to prevent the driveshaft, in the fitted condition, from falling apart after having suffered a fracture, an anti-disengagement member is provided. The member includes an annular stop (13) arranged at the end of the sliding journal (8). The stop (13) may be fitted through an aperture (15) in the joint yoke (4) of the first universal joint (1). The stop (13) stops against a suitable face of the inner longitudinal teeth (22) when the sliding sleeve (9) and the sliding journal (8) are moved apart by a change in length distance (16).

Abstract: A disengagable coupling comprising a first part (1) affording a bore (3) and a second part (2) comprising a sleeve (5) and a drive flange (6). The sleeve (5) fits in the bore (3) and contains an insert (8) with collars (9,10) between which is defined a chamber (4) for the reception of oil under pressure to expand the sleeve into frictional engagement with the wall of the bore (3) for torque transmission. There may be a pressure release valve response to relative movement between the first and second coupling parts to release the coupling in case of overload.

Abstract: In an adjustable telescoping power take-off shaft an inner shaft extends into splined engagement with an outer shaft. An adapter sleeve encloses an axially extending part of the outer shaft and a locking assembly, including a clamp nut threaded onto the sleeve and a retainer ring located within the nut, locks the inner and outer shafts in position after the length adjustment is made.

Abstract: A universal joint includes first and second yokes with a bore extending through each yoke. A cross trunnion having cylindrical bearing pins is carried between the first and second yokes with the bearing pins supported in the bores of the yokes. Hollow cylindrical bearing housings carried by the yokes containing roller or slide bearings may be used for journalling the bearing pins in the yokes. A stop member is carried by each of the yokes, and each stop member has an end face which is arranged to engage the end face of the other stop member to limit the amount of angular deflection of the universal joint. In one embodiment, the stop members are formed by limit bolts extending axially from each of the yokes into an axial bore of the trunnion. In another embodiment, the stop members are formed by axially adjustable stop collars carried coaxially on each yoke.