Ke Alakai o Hawaii, Volume VI, Number 2, 11 May 1933 — DIVING TUBE FOR TREASURE HUNTERS [ARTICLE]

DIVING TUBE FOR TREASURE HUNTERS

To aid in recovering sunicen , T aiuables, a marine engineer of £eattle, Wash., has devised a diving cylinder for deep water use, Wiaiin this metal cylinder, he declares, a diver keeps dry. and may work comfortabiy under norwal air pressure us far 400 feet below the surface, a dcpth far beyond t)ie range of ordiriarv rubber dīving suits. The operator stands at the bottorn of thc cylinder, whieh contains saffi -

eiem air for a four hour descent, He is lower-ed a b?vrge, , whieh he is in constant tele-' phone comjnunication. With the aid of an ingenious pair of tongs, resembling fingers and eonuolled from within, the operator niay atDach chains to a sunken. oblect so that it m&y be hauled t-o the surface. A swivel floodlight, aJso controlled from within, provides as the operator looks out of a heavy glass porthoie. The inventor has tested lois device in a nmnber of dives off the Washington coast. —P.S,M.