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Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments
(AREA)
Abstract
Improved mechanical pencil, characterized in that it comprises an outer upper body, shaped in a manner appropriate to a child's motif or another which, in its lower part, projects in a tubular element provided with a female thread at its free end, while in the upper part thereof, has an annular socket on which fits a cylindrical outer casing extruded proportionally towards its free end in a frustoconical shape so that, containing, the assembly thus formed an externally threaded shaft and with tubular shape, this mounts on the upper body, emerging to the outside the opposite end and this end being semishaped sectorially, moving axially towards the outside when rotating the upper body pivoting on the outer casing, being reduced or enlarged them the outer mouth of the displaceable tubular shaft. (Machine-translation by Google Translate, not legally binding)