Piston 1 reciprocates in fixed hydraulic cylinder 2. Connecting rod 3 is connected by turning pairs A and B to piston 1 and to rocker arm 7 which turns about fixed axis C. Link 4 is connected by turning pairs B and D to rocker arm 7 and to ram 5 of the press. Ram 5 reciprocates in fixed guides a. Pressure is applied to billet 6 when piston 1 travels to the left.
$3972$LHP,HP$