|4492292||Coupling system for power take-off shafts|
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 i...
|4433767||Power transmission mechanism|
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 socke...