An apparatus for underwater breathing with automatically governed loading and discharge valves (Machine-translation by Google Translate, not legally binding)

摘要

An apparatus for underwater breathing with automatically controlled loading and unloading valve, which has a variable volume distributor organ, which automatically governs either the load valve incorporated to it or the valuated discharge valve, characterized by the fact that also this discharge valve is established within the distributor organ. (Machine-translation by Google Translate, not legally binding)