Abstract: A planetary system suitable for amplification of horse power by a single or multi-stage arrangement from a rotary power source. In a stage provided are three axially concentric elements, whose axes define the system axis, a braked reaction gear and two non gear elements that rotate at the same angular speed, the input carrier and the output lever. Driven by and on the carrier is an iso-planet whose gear element meshes with the reaction gear and whose non-gear element, a free floating rim isolated from the rotation of the gear around its center and carried around the system axis is adapted to mate with and drive the output lever in specifically selected position on the system radius that is radially perpendicular to a point of large tangential force of the torque on the momentary driven radius of the iso-planet gear element. Output lever driven by a large force renders a larger torque and therefore power than the power applied.

Abstract: A planetary transmission incorporates two sun gears, one of which is braked, a planet carrier and two planet gears. Input power is supplied to one of the sun gears and output power is fed to an output shaft from the planet carrier.