Abstract: An assembly mountable on a toolhead assembly of a machine tool for performing a work function on a shallow wall of a workpiece positioned on a worktable of the machine generally consisting of a body mountable on the toolhead assembly, having a bottom surface adapted to be positioned adjacent the work table and an elongated bore disposed adjacent the bottom surface, a spindle shaft journaled in the elongated bore, having a bevel gear disposed on an inner portion thereof and means for mounting a tool bit on an outer end portion thereof, and a drive shaft journaled in the body, mountable on a drive spindle of the toolhead assembly and having a bevel gear meshing with the first mentioned bevel gear.

Abstract: The present invention includes a stationary housing having disposed therein an epicyclic star gearset including sun, idler, and ring gears. The sun gear includes an input shaft extending therefrom, and the ring gear includes a first output shaft extending therefrom. A bull gear having a second output shaft extending therefrom is also provided and is operatively connected to a pinion gear, which pinion gear is fixedly connected to an idler shaft extending from said idler gear. In accordance with a preferred embodiment of the invention, the gears are predeterminedly sized for obtaining equal and opposite rotation of the first and second output shafts during operation.

Abstract: A gas turbine engine comprising a fan, a compressor and a turbine, wherein the torque requirements of the fan or compressor can be modulated, is provided with differential gearing to transmit all of the fan and compressor power requirements from the turbine. The differential gearing maintains an adjustable speed relationship between the fan and compressor with respect to the turbine depending upon the torque requirements thereof and the gear ratios within the differential gearing.

Abstract: A device for switching power of active toy comprising: a pair of drive gears having engaging lugs formed on their opposing inner surfaces for mutual engagement and crank portions for actuating predetermined acting portions; a switching mechanism; and a switching gear adapted to be brought by said switching mechanism into engagement with alternating one of said drive gears. When said switching gear engages one of said drive gears, the other drive gear is driven by the first-mentioned drive gear through their engaging lugs, at a certain time lag, so that said crank portions of said drive gears may be actuated with a phase differential.