A device to facilitate the exchange of pulleys on an axis (Machine-translation by Google Translate, not legally binding)

摘要

A device for facilitating the exchange of pulleys on an axis essentially characterized by being formed by a hub mounted on an axle by a key and provided with an external rear thread and a front flange in which the pulleys mounted on the same face stop. Cube through a second key are tangentially secured between the by a ring that is threaded to the referred cube and pressed against each other. (Machine-translation by Google Translate, not legally binding)