Improvements and innovations introduced in printing machines flat calls (Machine-translation by Google Translate, not legally binding)

摘要

For improvements and innovations introduced in the so-called flat printing machines, characterized in that the sliding guides of the stage are constituted by prismatic surfaces that maintain it in its rectilinear trajectory without oscillations and doing without any other lateral effort with strange adjustment elements, being one of the trapezoidal section guides and the other flat. (Machine-translation by Google Translate, not legally binding)