Pulleys 1 and 3 are of equal diameter. Pulley 1 rotates about fixed axis A and, through flexible link 7, rotates pulley 3 about fixed axis B. Link 4, designed as a bent lever, turns about fixed axis E and is connected by turning pairs D and F to links 2 and 6. Link 2 is connected by turning pair C to flexible link 7. Link 5 turns about axis B and is connected by turning pair G to link 6. When pulley 1 rotates about axis A, links 2 and 6 have complex motions and links 4 and 5 oscillate about axes E and B.
$1900$FL,ML$