Improvements in the manufacture of roller chains. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the manufacture of roller chains, characterized by proceeding to a first phase of increasing the surface roughness by high-speed projection of a mass formed by bodies of small dimensions on the outer surface of the ferrules, then proceeding to the hardening surface of the bushings by treatment, thermal, to increase their resistance to wear and deformation and finally proceeding to the press assembly of the flanges on the ends of the bushings. (Machine-translation by Google Translate, not legally binding)