Pulleys 1 and 2 are of equal diameter. Pulley 1 rotates about fixed axis A and, through flexible link 7, rotates pulley 2 about fixed axis B. Link 3, designed as a bent lever, turns about fixed axis C and is connected by turning pairs F and D to link 5 and to link 4 which, in turn, is connected by turning pair E to flexible link 7. Link 6 is connected by turning pairs H and G to flexible link 7 and to link 5. When pulley 1 rotates about axis A, links 4, 5 and 6 have complex motions and link 3 oscillates about axis C.
$1910$FL,ML$