The lengths of the links comply with the condition: A͞B=B͞C. Link 1, rotating about fixed axis A, is connected by turning pair B to link 2. Link 2 is connected by turning pairs D and C to link 4 and 3. Slider 3 moves along fixed guides p-p. Slider 4 is connected by a sliding pair to link 5 which slides along fixed guides q-q. Point D describes an ellipse with its centre at point A and having the equation (x²/(m-n)²)+(y²/(m+n)²)=1. The variable vector p=A͞D can be regarded as the crank of slotted-link mechanism ADE with crank A͞D of variable length and equal to: A͞D=(m²-n²)sqrt(1/m²+n²+2mn cos(2ϕ)) where ϕ= angle between vector p and axis Ax, m=A͞B, n =B͞D.
$1023$LG,6L$