Abstract: A coupling arrangement for drivably interconnecting the PTO shaft of a tractor with a driven shaft for an implement to be operatively towed and powered by the tractor. The implement includes an input power shaft, and the tractor portion of the apparatus includes linkage means for moving the power input shaft with respect to the PTO shaft to render the axes coincident, with means being provided to create a power transmitting coupling or connection between the PTO shaft and the power input shaft.

Abstract: A drive shaft (30), adapted to be connected to the power takeoff shaft (14) of a tractor, comprises a longitudinally extensible shaft (33) including a tapered head (34) that is movable into and out of meshing engagement with a correspondingly shaped socket (50) on the outer end portion (49) of a driven shaft (48). The driven shaft is carried by an implement (27) and includes an inner end portion (49) connected to the outer, socket equipped end portion by a universal joint (51), the inner end portion being adapted for connection to a mechanism to be driven. A coil compression spring (53), loosely encompassing the universal joint, has opposite ends engaging flanges (54,55) on the inner and outer end portions of the driven shaft to yieldingly hold the driven shaft portions in alignment. A bearing (56) for the outer end portion of the driven shaft is mounted on the implement by mechanism including a spring (60), to enable turns of the tractor and implement.