The lengths of the links comply with the conditions: A͞D=C͞B and O͞D=O͞C. Link 1 rotates about fixed axis x-x and is connected by screw pairs to links 3 and 4. Links 3 and 4 are connected by turning pairs A and B to links 5 and 6 which, in turn, are connected by turning pairs D and C to disk 2. Disk 2 turns about fixed axis O. Screw 1 has right-hand and left-hand threads, a and b, of equal pitch. As a result, when screw 1 is rotated, disk 2 turns about axis O.
$2232$LS,5L$