Procedure of manufacture of pulleys of double throat or wheels with inner throat. (Machine-translation by Google Translate, not legally binding)

摘要

"PROCEDURE OF MANUFACTURE OF PULLEYS OF DOUBLE THROAT, OR WHEELS WITH INNER THROAT", characterized by the fact that they are placed inside the mold, two previously molded twin rings, whose profile is complemented by coupling them, to form the inner throat of both the pulley or wheel, said rings having circular grooves, in which the material of the outer crown penetrates, which has to form a whole with said core. (Machine-translation by Google Translate, not legally binding)