The lengths of the links comply with the condition: 0͞C=r, where r is the radius of circle p-p. The axis of guides t-t is tangent to circle p-p. Link 1, turning about fixed axis 0, is connected by turning pair C to link 5 and by a sliding pair to slider 3. Slider 4 moves along fixed guides t-t whose axis is parallel to axis 0y. Slider 4 is connected by turning pair B to slider 3. Arm Bf of slider 4, whose axis is parallel to axis Ox, is connected by a sliding pair to cross-shaped slider 2 which has guides perpendicular to each other. Link 5 is connected by a sliding pair to slider 2. When link 1 turns about axis 0, point D of slider 2 describes conchoid q-q of Kulp with the equation x²(r²+y²)=r⁴.
$1153$LG,Ge$