Crank 1 rotates about fixed axis B and is connected by a turning pair to slider 7 which moves along the slot of link 2. Slotted link 2 rotates about fixed axis A. Adjustable along slotted link 2 is slider 3 which is set to the required position by screw device 8. Connecting rod 4 is connected by turning pairs D and C to sliders 3 and 6. Slider 6 reciprocates along fixed guides a-a of base 5 . When crank 1 rotates about axis B, slotted link 2 rotates about point A and slider 6 reciprocates along the guides of base 5. Slider 3, rigidly clamped in slotted link 2, serves to change the stroke of„ point C.
$1459$LG,FD$