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EVANS-DE JONGE FOUR-BAR APPROXIMATE STRAIGHT-LINE MECHANISM

The lengths of the links of four-bar linkage ABCD comply with the conditions: B͞C=A͞F=1.36A͞B, D͞C=2.37A͞B, A͞D=3.1A͞B, B͞E=2.09A͞B and E͞C=3.46A͞B. 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 passing through point F on straight line AD.
$675$LW,GI$