Slider 1 moves along fixed guides z-z. Link 2 is connected by turning pair A to slider 1 and by a sliding pair to slider 3 which turns about fixed axis B. When slider 1 moves along guides z-z, point K of link 2 describes a strophoid with the equation y²=x²(d-x)/(d+x) where d=A͞K=0͞B.
$1136$LG,Ge$