Abstract: A gearless differential for distributing power from a motor to two follower shafts with ends connected to opposite wheels and to opposed outer disks held in position with a journal mounted casing having corresponding identical regular polygonal raceways with asymmetric sections surrounding a central drive disk there between with equidistant radial slots each holding one cylinder or roller bearing to radially reciprocate as they race along the raceways in a slippage mode where one wheel loses traction; and in a drive mode where the central drive disk power input drives both outer disks connected to the two follower shafts transferring torque evenly to both wheels so there is no movement of the cylinders or roller bearings in the raceways.

Abstract: A concrete curb forming and extruding apparatus with wheel adjustment locks, and an adjustable slip form system shaping cementitious material into a continuous curb forced there through by an extruder which receives materials stored in a hopper with dasher. The extruder has a rotary trowel compacting member which continually forces material from the hopper into compressed concrete passing through an adjustable slip form to fill the same and form differing shaped continuous curbing underneath fences or against vertical surfaces or conventional curbing, depending upon the slip form setting.

Abstract: An eccentric dual stepping gear roller bearing system, which consists of an input shaft and an output shaft associated with a gear ring holding an exterior row of equally spaced ball bearings, an output gear with an interior row of lesser diameter with fewer equally spaced ball bearings held at a different plane relative the exterior row, and at least one stepping gear with exterior and interior stepping gears having differing radii joined off-set on top of one another and eccentrically mounted on the drive shaft to act on the interior and exterior rows of roller bearings, which act as gear teeth to rotate the output gear to reduce shaft output.