Improvements in the construction of mechanisms for teaching applications, which are characterized, essentially, by having a base part, with a support element, provided with a series of fixed axes arranged perpendicular to the base part, the axes mentioned being colors different from each other, in correspondence with a series of toothed wheels or other organs of the same respective colors, which are mounted freely rotating on the mentioned axes, engaging or coupling with each other, the base piece carrying holes in which the respective ends fit of other loose axles integral with respective toothed wheels and on whose axes they are also capable of rotating sleeves, integral, in turn, with other toothed wheels, so that said axes protrude from the respective sleeves and some are arranged to fit in them other mechanical elements moved. (Machine-translation by Google Translate, not legally binding)
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