The lengths of the links comply with the conditions: A͞B=B͞C=r, R/r=2, E͞G=F͞H, G͞K=H͞L and E͞F=G͞H=K͞L. The mechanism is based on Cardan circles consisting of gear 2 of radius r rolling in internal gear 3 of radius R. Link 1 rotates about fixed axis A and is connected by turning pair B to gear 2. Point C of gear 2 describes straight line p-p passing through point A. Gear 2 is connected by turning pair C to link 4 of the translator mechanism which forms two parallellograms, KGHL and GEFH. When link 1 rotates about axis A, link 4 has rectilinear translational motion and axis EF of link 4 slides along straight line q-q which is parallel to line KL. Links 8 and 9 turn about fixed axes K and L.
$1770$GL,Ge$