Link 1 slides in fixed guides a-a and has pin d which slides along slot e of link 5. Link 5 turns about fixed axis A and has a second slot f which slides along pin k of link 4. Link 4 is connected by sliding pair B to link 2 and has pin h which slides along slot m of link 3. Link 2 slides in fixed guide c, and link 3 in fixed guide b. The value of one of the factors, x, is set up by displacinig link 1; that of the second factor, y, by displacing link 2. At this, link 4 and slot m of link 3 are displaced vertically by the amount z=(1/k)xy where k is a constant dimension of the mechanism, being the distance from point A to the axis of guides a-a.
$1270$LG,MO$