Flexible link 1 runs over pulleys 5 and 7, of equal diameter, and oscillates about fixed axis A. Link 6, designed as a bent lever, is connected by turning pairs B and C to pulleys 5 and 7, and by turning pair D to link 3 which is also designed as a bent lever. Links 2 and 4 turn about fixed axes H and G and are connected by turning pairs E and F to link 3. When flexible link 1 turns about axis A, links 3 and 6 have complex motions and links 2 and 4 oscillate about axes H and G.
$1997$FL,TC$