Identical pulleys 1 and 2 rotate about fixed axes A and B. Endless flexible link 6 runs over pulleys 1 and 2, four guide rollers 5, rotating about fixed axes, and two identical pulleys 4 which rotate about axes D and E of lever 3. Lever 3 turns about fixed axis C. When pulley 1 rotates about axis A, all the other pulleys and rollers rotate about their axes, and lever 3 can be turned to various positions.
$3578$CFL,DF$