The lengths of the links of four-bar linkage ABCD comply with the conditions: A͞B=D͞C=6.2B͞C, C͞E=B͞E=0.6B͞C and A͞D=2.36B͞C. When link 1 turns about fixed axis A, point E of link 2 describes a path of which a certain portion approximates straight line q-q, parallel to AD.
$654$LW,GI$