The lengths of the links of slider-crank linkage ABC comply with the conditions: B͞C=0.65A͞B, B͞D=0.45A͞B, D͞C=1.05A͞B and a=0.32A͞B. When link 1 turns about fixed axis A, point D of connecting rod 2 describes a path of which a certain portion approximates straight line q-q, perpendicular to axis b-b of motion of slider 3.
$1553$SC,GI$