Abstract: A mechanically variable transmission is provided by a novel arrangement of sheaves in combination with a power ring which can be utilized with a planetary device to smoothly varying output speed from maximum rotational speed in one direction to maximum speed in the opposite direction while passing through or maintaining zero output speed or any other speed in a forward or reverse direction while the input speed is varied or remains constant. The novel arrangement provides changes in the output speed over the entire range of engine power and under all load conditions since declutching is not necessary to shift gears allowing the engine to operate at a constant horsepower over the entire range of throttle settings and can enhance engine efficiency by allowing the engine to operate at the lowest possible speed and highest torque.

Abstract: A method and control system for gear cutting machines such as hobbing equipment, shaper cutters and bevel-cutting equipment for achieving greater accuracy, productivity, and gears of increased quality while eliminating error, tedious calculations, labor and product variation is provided by employing a control system and utilizing a method of gear cutting wherein optimum cutter efficiency is maintained by electronically monitoring and controlling cutter input power, cutter shift and workpiece feed or in an alternative embodiment by varying index drive and feed drive in response to inputs measured from the cutter or cutter motor to produce gears approaching the optimum theoretical calculated configuration.

Abstract: A method and control system for gear cutting machines such as hobbing equipment, shaper cutters and bevel-cutting equipment for achieving greater accuracy, productivity, and gears of increased quality while eliminating error, tedious calculations, labor and product variation is provided by employing a control system and utilizing a method of hobbing wherein optimum hob cutter efficiency is maintained by electronically monitoring and controlling hob input power, hob shift and workpiece feed to produce gears approaching the optimum theoretical calculated configuration. The method of cutting gears and the control system provides for the production of more accurate gears by eliminating the use of cams in shaper cutters and the use of change gears in hobbing machines and by properly controlling hob shift to result in an increased hob cutter life and provide higher production of optimally designed gears.

Abstract: A speed reducer gear box comprising input, intermediate and output shafts rotatably mounted in a gear case. A hydraulic motor or the like is connected to the input shaft and is adapted to rotate the same. The intermediate shaft has a helical gear mounted thereon which is in mesh with a gear tooth portion on the input shaft whereby rotation of the input shaft by the hydraulic motor causes rotation of the intermediate shaft. A helical gear is also mounted on the output shaft for rotation therewith and is in mesh with a gear tooth portion on the intermediate shaft. A flywheel is mounted on the input shaft for rotation therewith to provide inertia to stabilize and to smooth out the operation of the gear box.

Abstract: A gear reduction apparatus includes a housing having first and second input shafts rotatably mounted therein and first and second flywheels mounted on the first and second input shafts respectively. Each input shaft is adapted to be connected to a power source and includes a toothed gear portion in mesh with a toothed gear portion of an output power mechanism which is thereby rotated at a lower angular velocity than the input shafts. The output power means may include a planetary gear system for further speed reduction prior to connection to a driven member.

Abstract: A speed reducer gearbox includes input, intermediate and output shafts rotatably mounted therein and a flywheel mounted for independent rotation about the intermediate shaft. The flywheel includes a toothed gear portion in mesh with an additional gear on the input shaft whereby the flywheel is rotated in response to rotation of the input shaft. The flywheel toothed gear portion and additional gear on the input shaft are of relative sizes such that the flywheel is rotated at a higher angular velocity than the input shaft.