The lengths of the links comply with the conditions: C͞B=4.28A͞B, C͞D=4.86A͞B, C͞E=2.14A͞B, B͞D=8.4A͞B, A͞E=4.55A͞B and a=1.66A͞B. When point B of crank 1 travels along the part of a circle indicated by a heavy continuous line, point D of connecting rod 2 describes portion y-y of its path that is shown by a heavy continuous line and which approximates a straight line perpendicular to guides x-x. During continuous rotation of crank 1 about fixed axis A, slotted link 3 reciprocates along axis x-x-with a dwell during the travel of point D along portion, y-y of its path.
$1350$LD,D$