The lengths of the links comply with the conditions: B͞C=C͞K=C͞D=1, A͞B=0.46, A͞D=1.3, C͞D=F͞E, C͞F=D͞E, G͞C=H͞K and G͞H=C͞K. The mechanism is based on four-bar linkage ABCD. Point K of link 3 describes a connecting-rod curve of shape a of which portions q-q approximate two mutually perpendicular straight lines. Link 2 is connected by turning pair K to link 3. To have all points of link 2 describing path a, i.e. to obtain translational motion of link 2, a translation device is provided. It consists of links 4, 5, 6 and 7 which form parallelogram linkages DCFE and KCGH.
$699$LW,GI$