The lengths of the links comply with the conditions: C͞B≈2.66A͞B, C͞D≈1.33A͞B, A͞D≈2.66A͞B, C͞E≈4.33A͞B, B͞E≈6.3A͞B, A͞F≈5.66A͞B, D͞F≈4A͞B and a=A͞B. Eccentric 1 has its centre at point B and rotates about fixed axis A. Connecting rod 2 has collar b which encircles eccentric 1. Projecting lug c of connecting rod 2 is connected by turning pair E to slider 3 which moves along guides d of slotted link 4. Of the path of point E of connecting rod 2, portion x-x, shown by a heavy continuous line, approximates a straight line at a distance of a from fixed axis F about which link 4 oscillates. When point E passes along portion x-x, link 4 has a dwell. It also has an instantaneous stop when point E reaches position E".
$1347$LG,D$