Improvements in the construction of operating machines for your projection for didactic purposes. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the construction of operant models for their projection with didactic purposes, which are characterized by the fact that on a rigid transparent base the various elements that make up the machine to be represented are arranged in mutual functional relation, said elements having a corporeal representation that reproduces the view in lifting and cutting them, and said elements being furthermore articulated with each other, so that the movement of one of them implies the orderly movement of the others, and the device is completed by a group of manually operated gears or mechanical, with the appropriate speed ratio that serves to set it in motion. (Machine-translation by Google Translate, not legally binding)