Toy of subacuum practices. (Machine-translation by Google Translate, not legally binding)

摘要

Underwater practice toy, consisting of a closed hollow base-piece with a lower cover, whose rough upper surface capriciously represents the characteristics of a seabed and a preferably transparent bell equipped with a hole provided with a screw cap on its upper part, meeting both pieces welded together and said bottom being located inside the bell; with the particularity of having foreseen a housed inside the base piece and provided with a flexible hollow appendix that projects to the outside through a hole made in the upper part of the base located outside the bell, having such a bladder ducts tubular whose ends are welded in arbitrary holes in the rough upper surface of the base-piece, so that, being filled with water, both the bell and the bladder, upon exerting pressure on the protruding outer appendix of the latter, produce more upwelling currents of water through the aforementioned holes in the seabed, whose currents are used to make it ascend; and describe capricious evolutions to floating objects contained within the bell. (Machine-translation by Google Translate, not legally binding)