New type of differential speed changer (Machine-translation by Google Translate, not legally binding)

摘要

NEW TYPE OF SPEED CHANGER DIFFERENTIAL, characterized by having essentially a set of gears or idlers, of various diameters, according to the desired speeds of rotation, which can be coupled at will and selectively to other driving gears, by means of of one or more keys that are inserted in the slots existing in the internal part of said wheels or crazy gears. (Machine-translation by Google Translate, not legally binding)