Link 4 rotates about fixed axis x-x and is connected by screw pair A to link 3 which has slot a perpendicular to axis x-x. Slider 5 moves along slot a of link 3. Link 6 turns about fixed axis B and has slot b along which pin d of slider 5 and pin C of link 2 slide. Link 2 slides in fixed guide p whose axis is perpendicular to axis x-x. Slider 5 has gear rack f which meshes with gear 1. Gear 1 rotates about a fixed axis parallel to axis x-x. When link 2 is displaced the distance y and link 3 the distance x, the displacement z of rack f of slider 5 is z=(1/k)xy where k is a constant dimension of the mechanism. The magnitude of z is proportional to the angle ϕ of rotation of gear 1. We have ϕ=(1/(rk))xy where r is the pitch radius of gear 1.
$2264$LS,MO$