Pulleys 1 and 5 are of equal diameter. Pulley 1 rotates about fixed axis A and, through flexible link 7, rotates pulley 5 about fixed axis B. Link 3, designed as a bent lever, is connected by turning pairs C, D and E to flexible link 7 and to links 2 and 4. Link 6 turns about fixed axis H and is connected by turning pairs G and F to links 2 and 4. When pulley 1 rotates abou axis A, links 2, 3 and 4 have complex motions and link 6 oscillates about axis H.
$1914$FL,ML$