Abstract: A string-supported device capable of simultaneous rotation about its own axis, translational motion and orbital motion. An axle consisting of two segments, both axle-segments connected together, either directly or indirectly, and each axle-segment capable of rotating independently of the other axle-segment. Two discs are connected through their centers to each of the two axle-segments. Opposite ends of a single string are connected to each axle-segment, and the string is looped over a support member upon which it can readily slide. The support member is connected to a swivel system which is in turn connected to a ring. In order to operate the device the string is first wrapped in opposite directions around each axle-segment, and the body of the yo-yo is allowed to fall while the operator is holding the ring. An up-and-down motion of the yo-yo device is thus initiated.

Abstract: A toy having combined rotational motion about a horizontal axis and translational motion in a vertical direction. Two parallel discs are connected through their centers by a single axle. One end of a torsion resistant tape is attached to the axle, at a position between the two discs. A swivel system is attached to the other end of the tape, and a ring for holding the toy is attached to the swivel system. In order to operate the toy, the user's finger is placed in the ring and an up-and-down motion is initiated. The balance of the toy during operation is facilitated by the support provided to the axle along the width of the tape.