A procedure for the obtaining of mixed and brilliant mixed fronts on metal plates (Machine-translation by Google Translate, not legally binding)

摘要

A method for obtaining matte and glossy mixed fronts on metal plates, of the kind comprising very bright areas limited exactly with respect to the matt zone, characterized by the fact of submitting the plate or sheet to be treated to a previous polished or polished to unify the surface of the same, proceeding then to a drawing by punch or burin, following defined lines, straight or not, that form grooves on the aforementioned surface, defining and delimiting each pair of grooves the areas that have to be bright in the subsequent operations, practicing in the parts outside these zones a work of grinding with fine dust of emery, to leave in uniform shading the corresponding part and this state the sheet is subjected to a general nickel that affects equally to the areas between grooves and the nuances marginalized on a nickel-plated chromium deposit that increases the action of the coating oanterior, thus giving rise to the fact that the non-grinding areas are very bright while the nuanced ones retain a cushioned shine, leaving between them a definite and concrete separation motivated by the presence of the grooves mentioned. (Machine-translation by Google Translate, not legally binding)