The press of joist and hundredweight, was used for the olive oil elaboration El aceite de oliva y el sistema de prensa de viga y quintal.

 

  joist and hundredweight press

The joist and hundredweight press is a kind of press to make olive oil, very characteristic, in the following drawing you can see all the press parts.

Scheme of joist and hundredweight press.

Joist and hundredweight press is one of the presses for the making of olive oil , more used between  XVII and XIX centuries. Image given for  Pieralisi España S.L

 

Joist and hundredweight press, constitutes together with the mill of cylindrical or conical stones the foundation of the majority of the existing olive oil mills in  the XVII and XIX centuries. The use of this press falls down with the appearance of the hydraulic systems of pressure at the beginning of the XX century the working way is explained in the following drawing.

 

Scheme of the operation of the press joist and hundredweight.

 Joist and hundredweight press is used from antiquity, it mechanism is based in the lever principle. Image given for Pieralisi España S.L

 

The joist and hundredweight press is a monumental mechanism of wood, based on the lever principle, of a size closer to 15 m. The pressure is exercised of progressive and slow way, thanks to a stone weight of approximately 3.000 Kgs hanged in the tail of the girder that was rose with help of a wood screw . Few workmen, also called "husilleros"  moved this stone seized to a few wood arms.
 

  Engraved of the joist and hundredweight press.

Engraving on an oil press where it is possible to observe the joist and hundredweight press
 

 

In Bajo Aragon we can find a joist and hundredweight mill, known with the name of Jaganta mill, it is found in a municipality that gives name to this mill. The main piece of this olive mill is the hundredweight press, called "pound" like gigantic lever resting in  a solid tower visible from the exterior. The lever is driven by a wheel, which raises an enormous counterweight, squashing the mats of esparto, with the olives paste, previously crushed, that have placed in the other end.

 

the Jaganta mill, is completed with the millstone " of blood ",  receives this name because the traction of the millstone was made with animals. The function of the millstone was  the previous crush of the olives and the decantation systems of the olive oil. Jaganta's mill stopped working a few years after the Civil war, beginning to work again from 1994-1995.

Jaganta press for elaborate olive oil.

The blood millstone belongs to the Jaganta mill,  is known as the blood millstone because the traction was made by animals,

 

In the Matarraña region we can find also a joist and hundredweight mill called "molí de l´hereu", in the village of Rafales, this mill is from the XVIII century.

 

 

Press of joist and hundredweight of moli de l´hereu

Joist and hundredweight press to make olive oil in  Rafales (Teruel)

 

 

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