Improvements in the valves that control the passage of pressure fluids (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the valves that control the passage of pressurized fluids, according to which said valves are organized on a control shaft susceptible to sliding, through certain channels, carrying out the opening and closing phases, on whose tree they have been produced, two peripheral protrusions forming a stop that delimit the displacements of the control shaft. (Machine-translation by Google Translate, not legally binding)