Head for plotting machines able to selectively plot and cut from sheets figures memorized by a computer

摘要

This invention relates to a head for plotting machines able to trace out figures memorized by a computer and is provided, besides a writing pen (4), with a metallic cutting point (6) suitably spaced from said writing pen and perpendicular to the working plane, said writing pen and said metallic cutting point being provided with respective devices for locking and registering the rest position of their points with respect to the working plane, control means being provided to selectively press either point toward the working plane according to whether a plot of memorized figures has to be performed on a paper sheet (2) lying on the working plane, or a cut of said memorized figures has to be performed on a sheet of paper or other suitable material.