In this type of press of olive oil, the most primitive of all that use lever principle in order to increase the effect of power on a resistance point. Pressure on the olives was simply the one exerted for a weight that was hanging in the other side of the lever and the weight of the beam itself.

In a Greek representation of the VI century a. C. It was observed how a man tied to a thick beam some stones while other man rised up the  mentioned beam to increase the pressure on the  baskets that contained the olives.

 "The

                                                                     Lever press follows the lever principle

Source: Pieralisi España S.L