Some cone CVT layouts use two rollers.[23][24] In 1903, William Evans and Paul Knauf used for a patent on a continually variable transmission working with two parallel conical rollers pointing in opposite directions and related by belts that can be slid together the cones to differ the transmission ratio. Having https://gearboxcvt42074.bloguerosa.com/31757381/not-known-factual-statements-about-gearbox-cvt