Slider 1, moving along fixed guides p-p, has cross-piece Bb which is connected by a sliding pair to X-shaped slider 7 having the angle a between the axis of its guides. Link 3, connected by turning pair B to slider 1, moves in sliders 5 and 4. Slider 5 is connected by turning pair A to slider 2 which moves along fixed guides q-q. Cross-piece Aa of slider 2 moves in slider 7. Slider 4 turns about fixed axis 0. When slider 1 moves along guides p-p, point C describes an equilateral hyperbola with the equation xy=c²=1/4(a²+b²) where c = constant dimension of the mechanism, a and b = semiaxes of the hyperbola. Axes 0x and 0y are asymptotes of the hyperbola.
$1073$LG,Ge$