Link 1, turning about fixed axis B, is connected by a sliding pair to slider 3. Slider 3 is connected by turning pair C to slider 4 which moves along fixed guides p-p whose axis is perpendicular to axis 0x. Cross-piece t-t of link 3 is perpendicular to axis Bq and is connected by a sliding pair to cross-shaped slider 2 which has guides perpendicular to each other. Link 5, turning about fixed axis 0, is connected by a sliding pair to slider 2. When link 1 turns about axis B, point D describes strophoid s-s with the equation ρD=0͞D=a*cos(2ϕ)/ cos(ϕ) where ϕ is the polar angle between vector ρD and polar axis 0x.
$1141$LG,Ge$