Link 1, designed as a bent lever, turns about fixed axis A and is connected by turning pairs C and D to pulleys 2 and 3, of equal diameter. Flexible link 7 runs over the pulleys and is connected by turning pairs E and H to links 6 and 4. Link 4, designed as a bent lever, turns about fixed axis B and is connected by turning pair G to link 5 which, in turn, is connected by turning pair F to link 6. When link 1 turns about axis A, links 5 and 6 have complex motions, and link 4 oscillates about axis B.
$2061$FL,Sa$