ES1048875U - Vibrating cylinder recording machines. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Vibrating cylinder for recording machines, characterized in that it is constituted by two coaxial cylindrical chambers, of which the internal one is displaceable axially with respect to the external chamber between advance and retraction positions and houses an axially displaceable piston in said inner chamber, which disposes of a rod passing through one of the adjacent bases of the two chambers and protruding in a portion defining a striking tip, the inner chamber and the piston being pushed towards their retraction position by means of respective springs, and arranging the two orifice chambers of exhaust and guides to lead the internal chamber in its movement inside the external chamber between the positions of advance and retraction cited, also presenting the internal chamber, from the base not traversed by the piston rod, a displaceable head with tight fitting in a section of the external chamber, whose head has a drill or axial through which opens into the external chamber in an area in which also opens a conduit for supply of air under pressure. (Machine-translation by Google Translate, not legally binding)