Improvements introduced in the construction of automated picaportes operation with interior conviction mechanism (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the construction of automatic latching drives with internal locking mechanism, characterized in that the spike is a piece of revolution with the following features, in order of its internal end where it joins the knob; a cylindrical space cut, an annular groove for receiving a circlip, a cylindrical space of greater diameter on which it will turn, and a last section still of greater diameter, in which longitudinal grooves will be carved which will receive the inverse shape of the neck of the knob; internally, the spike has a centered through hole, with two diameters, the largest one corresponding to the largest external diameter. (Machine-translation by Google Translate, not legally binding)