Cam 1 slides along fixed guides d-d and its working surface a is along a curve that satisfies the condition y=Cx^n where C is a constant depending on the transmission angle. Screw 2 rotates in fixed bearings A and is connected by screw pair B to cam 1. Follower 3 slides in fixed guide E and its pointed tip slides along working surface a of cam 1. When handwheel D is turned through the angle φ, follower 3 is displaced by the distance y which is proportional to y=C(φr*tan(β))^n where r is the pitch radius of the thread of screw 2 and β is the helix angle of the thread.
$3117$SmC,MO$