Link 1 turns about fixed axis A and is connected by sliding pairs to sliders 3 and 5. Link 2 turns about fixed axis E and is connected by turning pair C to slider 3. Slider 6 moves along fixed guides p-p and is connected by turning pair B to slider 5. Cross-shaped slider 4, with guides perpendicular to each other, is connected by sliding pairs to link 7 and to cross-piece Ba of link 6. Link 7 Is connected by turning pair C to slider 3. When link 2 turns about axis E, point D of slider 4 describes versiera s-s with the equation 4r²x+xy=8r³ where r=E͞C.
$1184$LG,Ge$