The inversion condition 0͞Bx0͞P=0͞D² is always complied with. Link 2, turning about fixed axis 0, is connected by sliding pairs to sliders 6, 9 and 3. Link 7 has the form of a bent lever and turns about axis 0. Link 7 is connected by turning pair D to slider 1 and its arm Da moves in slider 8. Slider 1 moves along axis Eb of link 5. Link 5 is connected by turning pair E to slider 4 and by a sliding pair to cross-shaped slider 6 which has guides perpendicular to each other. Sliders 8 and 9 are connected together by turning pair P. Slider 3 is connected by turning pair C to slider 4 which moves along fixed guides p-p whose axis is parallel to axis Oy. When link 2 turns about axis 0 , point P describes a conic section with the equation y²=2px-(1-e²)x² where 2p=0͞D²/0͞C, e²=E͞C=0͞C. Point P describes an ellipse when e<1, a parabola when e=1 and a hyperbola when e>1.
$1122$LG,Ge$