Gears 1 and 2 mesh with each other and rotate about fixed axes B and A. Cranks b and a are rigidly attached to gears 1 and 2, and are connected by turning pairs D and C to connecting rods 6 and 3 which, in turn, are connected by turning pairs F and E to crossbeam 4. Crossbeam 4 is connected by turning pair K to slider 5 which moves in fixed guide e along axis y-y. The dimensions of the links comply with the conditions: r₂=2r₁, A͞C=B͞D, C͞E=D͞F, and E͞K=F͞ K. In the initial position, the angles made by lines AC and BD with axis x-x are equal and symmetrical. The required kind of motion of slider 5 can be obtained by clamping cranks a and b at various positions on gears 2 and 1.
$2437$LrG,ML$