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• Joseph_Salim_Peress abstract "Joseph Salim Peress (1896 – June 4, 1978), was a pioneering British diving engineer, inventor of one of the first truly usable atmospheric diving suits, the Tritonia, and was involved in the construction of the famous JIM suit.Peress had a natural talent for engineering design, and had challenged himself to construct an articulated atmospheric diving suit (ADS) that would keep divers dry and at atmospheric pressure, even at great depth. At the time, little was known about decompression diving. Various atmospheric suits had been developed during the Victorian era, but nobody had yet managed to overcome the basic design problem of constructing a joint which would remain flexible and watertight at depth without seizing up under pressure.In 1918 Peress began working for WG Tarrant at Byfleet, United Kingdom, where he was given the space and tools to develop his ideas about constructing an ADS. His first attempt was an immensely complex prototype machined from solid stainless steel.In 1923 Peress was asked to design a suit for salvage work on the wreck of the P&O liner SS Egypt which had sunk in 122 m (400 ft) of water off Ushant. He declined, on the grounds that his prototype suit was too heavy for a diver to handle easily, but was encouraged by the request to begin work on a new suit using lighter materials. By 1929 he believed he had solved the weight problem, by using cast magnesium instead of steel, and had also managed to improve the design of the suit's joints by using a trapped cushion of oil to keep the surfaces moving smoothly. The oil, which was virtually non-compressible and readily displaceable, allowed the limb joints to move freely at depths of 600 ft (180 m), where the pressure was 520 psi (35 atm). Peress claimed that the Tritonia suit's joints could function at 1,200 ft (370 m) although this was never proven.In 1930 Peress revealed the Tritonia suit. By May it had completed trials and was publicly demonstrated in a tank at Byfleet. In September Peress' assistant Jim Jarret dived in the suit to a depth of 123 m (404 ft) in Loch Ness. The suit performed perfectly, the joints proving resistant to pressure and moving freely even at depth.The suit was offered to the Royal Navy which turned it down, stating that Navy divers never needed to descend below 270 m (890 ft).Jim Jarret made a deep dive to 305 m (1,001 ft) on the wreck of the RMS Lusitania off south Ireland, followed by a shallower dive to 60 metres (200 ft) 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 1969 Peress became a consultant to the new company created to develop the JIM suit, which was named after his diver Jim Jarret.".
• Joseph_Salim_Peress birthDate "1896".
• Joseph_Salim_Peress birthYear "1896".
• Joseph_Salim_Peress deathDate "1978-06-04".
• Joseph_Salim_Peress deathYear "1978".
• Joseph_Salim_Peress thumbnail Tritonia_Lusitania_1935.jpg?width=300.
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• Joseph_Salim_Peress wikiPageExternalLink atmospherickern.htm.
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• Joseph_Salim_Peress birthDate "1896".
• Joseph_Salim_Peress dateOfBirth "1896".
• Joseph_Salim_Peress dateOfDeath "1978-06-04".
• Joseph_Salim_Peress deathDate "1978-06-04".
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• Joseph_Salim_Peress name "Joseph Salim Peress".
• Joseph_Salim_Peress name "Peress, Joseph Salim".
• Joseph_Salim_Peress significantDesign Atmospheric_diving_suit.
• Joseph_Salim_Peress subject Category:1896_births.
• Joseph_Salim_Peress subject Category:1978_deaths.
• Joseph_Salim_Peress subject Category:Diving_engineering.
• Joseph_Salim_Peress subject Category:Inventors.
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• Joseph_Salim_Peress comment "Joseph Salim Peress (1896 – June 4, 1978), was a pioneering British diving engineer, inventor of one of the first truly usable atmospheric diving suits, the Tritonia, and was involved in the construction of the famous JIM suit.Peress had a natural talent for engineering design, and had challenged himself to construct an articulated atmospheric diving suit (ADS) that would keep divers dry and at atmospheric pressure, even at great depth. At the time, little was known about decompression diving.".
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• Joseph_Salim_Peress depiction Tritonia_Lusitania_1935.jpg.
• Joseph_Salim_Peress givenName "Joseph Salim".
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• Joseph_Salim_Peress name "Joseph Salim Peress".
• Joseph_Salim_Peress name "Peress, Joseph Salim".
• Joseph_Salim_Peress surname "Peress".