Patent ID: 8567278

Claim:
A gear set comprising: a first idler gear having a first axis and first teeth at an outer edge thereof; a second idler gear having a second axis and second teeth at an outer edge thereof; a drive gear having a drive axis and drive teeth at an outer edge thereof; a driven gear having a drive axis and driven teeth at an outer edge thereof; the first teeth of the first idler gear meshing with the drive teeth of the drive gear; the second teeth of the second idler gear meshing with the first teeth of the first idler gear; the driven teeth of the driven gear meshing with both the second teeth of the second idler gear and the drive teeth of the drive gear; the first and second axes of the first and second idler gears respectively movable between a first position wherein the engagement of drive teeth and the driven teeth have lost motion with respect to one another to a second position wherein the drive teeth and the driven teeth have reduced lost motion from the first position with respect to one another; wherein the idler gears are held in the second position by an adjustment member; wherein the first axis and the second axis are at a fixed distance from each other; and wherein the first axis is restricted to movement about an arc centered on the drive gear and the second axis is restricted to movement about an arc centered on the driven gear.