Patent for a new and improved baling-press. This design consists in "[a] duplex cotton or other press comprising connected pressing-boxes, each having a loose lower platen and platen-supports on its sides, devices . . . for raising said lower platens, a truck for supporting said boxes, traveling wheels or rollers journaled to said truck and having bevel or V-shaped treads or peripheries, a track mounted upon suitable supports and having a V-shaped or recessed top face to receive and guide said wheels or rollers during the reciprocatory movements of said truck and the thereto-connected boxes" (lines 15-27)