Some cone CVT patterns use two rollers.[23][24] In 1903, William Evans and Paul Knauf used for any patent with a constantly variable transmission working with two parallel conical rollers pointing in opposite Instructions and related by belts which could be slid together the cones to fluctuate the transmission ratio. A https://gearboxcvt64296.gynoblog.com/31947781/getting-my-gearbox-cvt-to-work