The lengths of the links comply with the conditions: K͞L=C͞G, K͞C=G͞L, A͞C=B͞D, E͞F=C͞D=A͞B, A͞N=H͞N, C͞E=D͞F and A͞C:A͞K=K͞H:C͞E. The mechanism is based on the Hart four-bar inversor, consisting of crossed-crank linkage CKLG with the centre of inversion at point A. Point H describes a circle passing through point A and point E describes straight line q-q which is perpendicular to line AN. Link 5 is a component of a translator consisting of two parallel-crank linkages, ACDB and CEFD. When link 1 turns about fixed axis N, link 5 has rectilinear translational motion and its axis EF slides along straight line q-q which belongs to the fixed plane and is parallel to line AB. Link 7 turns about fixed axis A and link 3 about fixed axis B.
$715$LW,GI$