The mechanism is used to determine the x*sin(α). When cam 1 is turned about fixed axis D-D through angle α, follower 2, together with attached guide member 3, is displaced a distance proportional to sin(α). By means of worm 10 and segment worm wheel 9, guide member 4 is turned about point A through an angle whose tangent is proportional to the quantity x. Three sliders, 5, 6 and 7, connected together by turning pair B, move a long their respective guide members 3, 4 and 8, so that the displacement imparted to member 8 is proportional to the product x* sin(α).
$3202$CmL,MO$