1917 George Stolle

There is not much found about George Stolle. His patent was registered in 1917. He put the design in in 1914. Stolle was a citizen of Kiel Germany.In 1920 he patented another suit with F. Gall.Gall later worked for Neufeldt und Kuhnke.

The present invention therefore relates to an arrangement applicable to armored diving suits by which the ascent can be regulated at will. For this purpose a vessel is provided on the diving device the gas contents of which can be altered at will by the diver so that the volume of the vessel increases or diminishes corresponding to the charge. if the vessel is itself rigid the gas leaving the vessel may be displaced by liquid to increase the descent or vice versa. In the first case the vessel is for instance made out of parts telescoping one within the other or is in the form of an air bellows. The change of volume at constant weight operates the change in the descent, while in the latter case in which the container is rigidly connected with the diving device the variable liquid weight in this container produces the alteration in the ascent condi tions. The operation of the valves necessar for the functioning of the device may usually take place from the inside of the diving device, which will for this purpose be made in. the usual manner so that the diver can draw his arms into the interior of the diving device and move freely therein.

Stolle patent https://patentimages.storage.googleapis.com/f5/3b/b7/9eb12fa6163e80/US1245058.pdf