Links 1, 2, 3 and 4, slide in fixed guides m, q, p and n. Cross- shaped link 5, turning about fixed axis A, has slots a, b, c and d into which pins e, f , k and h of links 3, 2, 1 and 4 enter. The displacement of links 1, 2, 3 and 4 is proportional to the tangent of the angle of rotation of the cross-shaped link.
$1040$LG,ML$