Slider viewer, perfected. (Machine-translation by Google Translate, not legally binding)

摘要

Improved slide viewer, characterized by being constituted by a box formed by two coupled parts, one of which has a cylindrical cavity in which fits a cylindrical annular projection of the other, so that between the edge thereof and. The bottom of the cavity forms the housing of a ring provided with a lateral toothing, which serves as a support for a disk in which small slides are located in radial and regularly distributed positions, further comprising a small toothed pinion, located in the end of an axis prolongation of the control element, which meshes with said toothing of the support ring of the slide disc, so that when said control element rotates the disc rotates, presenting successively the slides between a window closed by a translucent plate and a small lens placed respectively in a part and another that form the box. (Machine-translation by Google Translate, not legally binding)