Abstract: A continuously variable mechanical transmission comprised of two wheels, either friction or toothed, of which one or both are in the shape of hemispheres. A hemisphere wheel is mounted through a bearing on a mounting with two pivots attached to the outer race of the bearing, allowing the wheel to rotate around two perpendicular accesses. The center of the wheel is attached to the shaft through a single or double universal joint or a flexible shaft. The other wheel can be a regular narrow wheel fixed to the second shaft. By rotating the hemisphere wheel around the mounting pivots the diameter of the wheel engaged with the second wheel is increased or decreased allowing the transmission rate to vary.

Abstract: A child swing is described. The swing may have an object hanger for use with the child swing. The object hanger includes a support bar coupled to the seat; and a decorative object coupled to the support bar such that the decorative object is positionable above a child seating area of the seat, wherein motion is imparted to the decorative object by the motion of the swing. The swing may have a display supported by a support member and facing toward a front of the child swing; and function activators supported by the forward facing support member and facing toward the front of the child swing, each function activator activating a function of the swing upon a user activating the activator.

Abstract: A continuously variable mechanical transmission comprised of two wheels, either friction or toothed, of which one or both are in the shape of hemispheres. A hemisphere wheel is mounted through a bearing on a mounting with two pivots attached to the outer race of the bearing, allowing the wheel to rotate around two perpendicular accesses. The center of the wheel is attached to the shaft through a single or double universal joint or a flexible shaft. The other wheel can be a regular narrow wheel fixed to the second shaft. By rotating the hemisphere wheel around the mounting pivots the diameter of the wheel engaged with the second wheel is increased or decreased allowing the transmission rate to vary.

Abstract: A child swing is described. The swing may have an object hanger for use with the child swing. The object hanger includes a support bar coupled to the seat; and a decorative object coupled to the support bar such that the decorative object is positionable above a child seating area of the seat, wherein motion is imparted to the decorative object by the motion of the swing. The swing may have a display supported by a support member and facing toward a front of the child swing; and function activators supported by the forward facing support member and facing toward the front of the child swing, each function activator activating a function of the swing upon a user activating the activator.

Abstract: A propulsion system for a vehicle comprised of two wheels, both of which are in the shape of hemispheres. Each of the hemisphere wheels is mounted through a bearing on a fork with two pivots attached to the stationary race of the bearing, allowing the wheel to rotate around two perpendicular accesses. The center of each wheel is attached to the shaft through a double universal joint or a flexible shaft. By rotating the hemisphere wheel around the fork pivots the diameter of the wheel engaged with the ground is increased or decreased allowing the vehicle speed and/or direction to very.

Abstract: A propulsion system for a vehicle comprised of two wheels, both of which are in the shape of hemispheres. Each of the hemisphere wheels is mounted through a bearing on a fork with two pivots attached to the inner race of the bearing, allowing the wheel to rotate around two perpendicular accesses. The center of each wheel is attached to the shaft through a double universal joint or a flexible shaft. By rotating the hemisphere wheel around the fork pivots the diameter of the wheel engaged with the ground is increased or decreased allowing the vehicle speed and/or direction to very.

Abstract: A continuously variable mechanical transmission comprised of two wheels, either friction or toothed, of which one or both are in the shape of hemispheres. A hemisphere wheel is mounted through a bearing on a fork with two pivots attached to the inner race of the bearing, allowing the wheel to rotate around two perpendicular accesses. The center of the wheel is attached to the shaft through a double universal joint or a flexible shaft. The other wheel can be a regular narrow wheel fixed to the second shaft. By rotating the hemisphere wheel around the fork pivots the diameter of the wheel engaged with the second wheel is increased or decreased allowing the transmission rate to vary.