Two-column hydraulic extrusion presses

Claim 1

A HORIZONTAL HYDRAULIC EXTRUSION PRESS, COMPRISING: A BOLSTER, A PRESS-CYLINDER BLOCK, A MAIN PRESS CYLINDER IN THE PRESS-CYLINDER BLOCK, AN UPPER COLUMN AND A LOWER COLUMN, BOTH PASSING AT ONE END THROUGH AND SECURED TO THE BOLSTER AND AT THE OTHER END PASSING THROUGH AND SECURED TO THE MAIN PRESS CYLINDER, A CONTAINER, TWO CONTAINER-DISPLACING CYLINDERS ARRANGED IN THE BOLSTER, THE AXES OF THE COLUMNS AND THE AXES OF THE CONTAINER-DISPLACING CYLINDERS BEING PARALLEL TO THE AXIS OF THE PRESS, AND THESE FOUR AXES, AS SEEN IN A CROSS-SECTIONAL VIEW OF THE PRESS, BEING LOCATED AT THE CORNERS OF AN IMAGINARY PARALLELOGRAM, WITH THE AXES OF THE COLUMNS AT DIAGONALLY CYLINDERS AT THE OTHER TWO DIAGONALLY OPPOSITE CORNERS, THE DIAGONALS BEING AT AN INCLINATION TO THE HORIZONTAL, SO THAT THE TWO COLUMNS ARE ON OPPOSITE SIDES OF A VERTICAL PLANE CONTAINING THE MAIN AXIS OF THE PRESS AND ALSO ON OPPOSITE SIDES OF A HORIZONTAL PLANE CONTAINING THE MAIN AXIS OF THE PRESS, AND THE TWO CONTAINER-DISPLACING CYLINDERS ARE ALSO ON OPPOSITE SIDES OF THE SAID VERTICAL PLANE AND ALSO ON OPPOSITE SIDES OF THE SAID HORIZONTAL PLANE.