Links 4 and 5 are connected by turning pairs E and F to crank 1 and rocker arm 3 of the four-bar linkage ABCD. Points of links 4 and 5 describe complex connecting-rod curves whose shape depends upon the sizes of the links of the mechanism. Thus, for example, upon rotation of crank 1, points G and H of link 5 describe the connecting-rod curves shown in the drawing.
$594$LW,6L$