Mechanical pencil of one or more mines. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the handling and fastening of the mines in the pens characterized by the application of a ratchet formed by a toothed blade or saw, a longitudinal guide post terminated by a sear for propulsion (or exit from the mine at will by the tip of the pen) from any point of its cover or wrapping, which may be convenient in order to avoid lifting the pen from the paper or changing the position of the hand that is writing or drawing each time the outgoing part of the mine is not have to interrupt work; also the fastening or subjection of said mine by the ratchet itself after each propulsion, making impossible its recoil caused by the reaction of the pressure against the paper; and finally, the quick and easy dismantling of the ratchet to allow a recoil at will, either to graduate to satisfaction the outgoing of said mine already to facilitate its replacement; being able to be either the oscillating saw and the mobile sear driving the mine or vice versa the oscillating sear and the mobile saw; all with metallic elements, or mixed, that is, metallic or fibrous and synthetic fibrous, resins, etc. (Machine-translation by Google Translate, not legally binding)