Identical pulleys 1 and 2 rotate about fixed axes A and B. Identical pulleys 5 and 6 rotate about axes D and C of slide 8 which reciprocates in fixed guides a-a. Also mounted on slide 8 is axis K about which pulley 7 rotates. Identical pulleys 3 and 4 rotate about axes E and F of cross-slide 9 which reciprocates in guides b-b of slide 8. Endless flexible link 10 runs over all seven pulleys. When pulley 1 rotates about axis A, all the other pulleys rotate about their axes and slide 8 and cross-slide 9 can travel in guides a-a and b-b with any kind of motion.
$3573$CFL,DF$