The gear-driven cylinder is a first for me. It shows a unique approach to speed reduction from the motor to the cylinder and pays homage the old wringer washer construction principles of gear drives for the agitator and wringer which would be most familiar to the maker, a long-time producer of wringer washers. In a tumble only application, they did not have to worry about high speeds shearing cogs. The other neat thing about the system is that the weight of the cylinder rests against the drive cog possibly providing extra support for the drum bearing and assuring positive contact between the two sets of gears.