olive oil and LEVER PRESS.
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.
Lever press follows the lever principle
Source: Pieralisi España S.L