Link 1 rotates about axis x-x and is connected by screw pairs E and F to links 2 and 3 which, in turn, are connected by turning pairs C and D to links 4 and 5. Links 4 and 5 are of equal length and are connected by turning pairs A and B to disk 6 which turns about fixed axis O. Link 1 has right- and left-hand screw threads, a and b. Rods d and f of links 2 and 3 slide in the corresponding holes i and k of these links. When link 1 is rotated, links 2 and 3 move in opposite directions and, through links 4 and 5, rotate disk 6 through a certain angle about axis O.
$2238$LS,ML$