Improvements introduced in the machines for the automatic positioning of the bolos in the tracks of the boleras (Machine-translation by Google Translate, not legally binding)

摘要

The object of this patent are some improvements to machines for fitting automatic bowling on head of boleras, consisting replace the two chains of the carriage mobile holding incorporated pulley for braces hoisting bowling in this kind of machines, for a vis-sin-fin in which skewers and gears an attached nut and united permanently to bridge mobile and disposed at the ends of auger flat areas, so that if any damage operation of safety items that are incorporated in the machine, continue to run the engine after reached the limit of forward or reverse race, the bridge hold still for not acting nut due to lack of fileteado helicoidal in such extreme zones vis-sin-fin. (Machine-translation by Google Translate, not legally binding)