Mechanical pencil with automatic change of mines. (Machine-translation by Google Translate, not legally binding)

摘要

Mechanical pencil with automatic change of mines, consisting essentially of a tank displaceable at will longitudinally and radially, divided internally in compartments, operable from the outside by a button like head of the pen, whose deposit can fit, thanks to some notches arranged at the base of the partitions that form the compartments, with a frustoconical piece with superior projections to fit the projections of the tank, a piece that is opened longitudinally following a line parallel to the generatrix of the cone, whose orifice is always in correspondence With one of the compartments of the mechanical deposit, this can rotate, moved manually by the button of the indicated head, on the larger base of the truncated cone, obtaining the necessary pressure to maintain the intimate union between both with springs arranged, respectively, between the head of the lapic ero and the mines deposit, and between the frustoconical piece and the tip of use of that, acting this last spring also for the fixation of the carrier clamp of the mine. (Machine-translation by Google Translate, not legally binding)