| 主权项 |
1. A press machine comprising:
a pair of side walls having a front side, a rear side, an inner side and an outer side; a cylinder mounting plate horizontally positioned upon said pair of side walls; said cylinder mounting plate having a central aperture; a cylinder mounted upon said cylinder mounting plate and having cylinder piston positioned for vertical displacement; said cylinder piston further having a distal end for threadable engagement with either a ram or a piston extension; said central aperture further having a diameter larger than the outside diameter of a cylinder piston; first pair of horizontal slots, one slot in one side wall and one slot in the other side wall, where said slots begin at the respective said rear side of each side wall and extend horizontally along the respective inner side of said side wall; said first pair of horizontal slots; each slot further having a bottom surface; at least one additional pair of horizontal slots, located above said first pair of horizontal slots and in parallel relation; one pair of horizontal rails for each pair of said horizontal slots, each of said rails having a proximal end, a distal end, and a top surface; each rail is positioned having its proximal end adjacent to a respective horizontal slot and where the top surface of said horizontal rail has the same vertical elevation as the bottom surface of said respective slot; and, a platen for each pair of horizontal slots, said platen sized to be slidably received within said pair of horizontal slots and displaceable from a first position in which at least a portion of said platen is located between said side walls to a second position in which said platen is supported by a respective pair of horizontal rails. |
