turned it down, stating that Navy divers never needed to descend below . Jim Jarret made a deep dive to , 50 fathoms, on the wreck of the Lusitania off south Ireland, followed by a shallower dive to in the English Channel in 1937 after which, due to lack of interest, the Tritonia suit was retired. Peress abandoned work on diving suits and instead turned to pioneering work in plastic moulding, later forming a company which became the world's largest manufacturer of gas turbine blades for the aircraft industry. In 1965, Peress came back from retirement, starting his collaboration with two British engineers, Mike Humphrey and Mike Borrow, interested in designing a modern atmospheric diving suit. The first order of business was finding the original Tritonia suit, which turned up in a Glasgow warehouse. After all those years, the suit was still in working condition, and the octogenarian Peress became the first person to test it in a factory test tank. In 1969 Peress became a consultant to UMEL (Underwater Marine Equipment Limited), the new company formed by Humphrey and Borrow, which eventually created the JIM suit, which was named after Peress' diver Jim Jarret. Notes and references External links Atmospheric diving suits The Joseph Peress Diving Suit Diving engineers 1896 births 1978 deaths British inventors