Bent link 1 turns about fixed axis A. Slider 3 moves along fixed guides r-r. Sliders 4 and 5 are connected together by turning pair C. Sliders 5 and 2 move along arms Aa and Ad of link 1. Sliders 2 and 6 are connected together by turning pair D. Sliders 4 and 6 move along cross-piece b-b of slider 3. When point C follows a given curve ϕ(ξ,η)=0 with the coordinates ξ and η, point D traces curve F(x, y)=0 with the coordinates x and y. Coordinates ξ, η, x and y are related by the conditions x =ξ and y=ξ²/r. Thus the mechanism converts curve ϕ(ξ,η)=0 into curve F{x, y)= 0.
$1200$LG,Ge$