Some cone CVT types use two rollers.[23][24] In 1903, William Evans and Paul Knauf used for your patent on the continuously variable transmission applying two parallel conical rollers pointing in opposite directions and connected by belts that might be slid alongside the cones to change the transmission ratio. WE Worth https://jeffreyxzxvr.nizarblog.com/32851172/rumored-buzz-on-gearbox-cvt