Friction cone c is keyed to shaft 1 and rotates about fixed axis A-A. Friction cone e, identical to cone c, is keyed to shaft 3 and rotates about fixed axis B-B. Tapered ring 2, between and in contact with cones c and e, rotates about axis C-C. The ring can be shifted along the elements of the cones. The transmission ratio from shaft 1 to shaft 3 i₁₃=ω₁/ω₃=n₁/n₃=((rd+(R-r)*a)/(Rd-(R-r)*a))*(R₂”/R₂’) where ω₁, ω₃, n₂ and n₃ are the angular velocities and speeds (in rpm) of shafts 1 and 3, R and r are the radii of the large and small ends of the cones, d is the length of an element of the cones, a is the variable distance from the central cross section of ring 2 to point D at the end p lane of the cones and on the middle line between their elements, and R₂’ and R₂” are the inner and outer radii of the central cross section of ring 2.
$3472$CF,IV$