Abstract: With respect to an overhead conveyor of the type wherein a carriage travels along a rotatable generally horizontal drive shaft by being supported on the top periphery of the drive shaft through skewed driven rollers, carriage construction is minimized by forming a portion or all of the carriage from a uniform cross sectional shaped elongated member extending through skewed apertures within the hub of one or all of the driven rollers.

Abstract: A load of an overhead conveyor is connected to a carriage, that has elastomeric material biasing a plurality of pivotally mounted driven wheels against a rotatable drive shaft extending along the transporting direction. The driven wheels are canted with respect to the drive shaft so that when the drive shaft is rotated, a helical loci of engagement between the drive shaft and driven wheels provides sufficient traction through the engagement force of the bias to propel the hanger along the transporting path. A first portion of weight of the load is carried through the bias member and through the driven wheels to the drive shaft, and thereafter a next portion of weight of the load is carried through a support wheel to a load support structure independently of the drive shaft.

Abstract: The shaft of the tennis racket is split between the handle and the head into two basic parts, so that a first part cantilevered from the grip supports the head, preferably with a journal, at its inner end while the second part supports the head at its outer end, preferably with a journal. The two shaft parts are unconnected so that they will flex independently of each other to maintain the head generally parallel with the axis of the grip independently of the force or positioning of the ball on the strings of the head. The shaft part that is connected between the grip and the outer end of the head is removable or displacable from the head to allow stringing of the head, and reassembly to overlie and protect the string holes along the side of the head.