Links 1 and 2 are connected by turning pairs A and B to the base, and their turning axes are perpendicular and intersect. Links 1 and 2 contact each other through edges a-a and b-b of triangular prisms d and f. These edges are perpendicular to and intersect the turning axes of links 1 and 2. Angle ϕ₂ of rotation of link 2 is related to angle ϕ₁ of rotation of link 1 by the equation ϕ₂ = arc tan ((m/n) tanϕ₁) for m=n, ϕ₂=ϕ₁.
$517$SL,CL$