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Acetylene air compressors air embolism air supply Amatol Ammonium Nitrate amperes anchor bilged binding posts blasting blasting cap Blasting Gelatin blocks boinc bottom bulkheads buoy buoyancy BuPers caisson disease Carburetor cast iron cement ceramic cere circuit Clove Hitch cofferdam compartment compressed air concrete Cordtex cubic foot cutting charges CUTTING TORCH deck DECOMPRESSION TABLE depth depth charges detonating cord detonator diameter diver diving dunce cap dynamite electric engine EYE SPLICE fairlead feet firehose firing fitted foot length Foot valves fuze galvanometer gases gasket gelatine Globar Guncotton half hitches hemp high explosives Historical Diving Society hole hollow charge hose However hull hydrogen hygroscopic inch inside kinks lead wire leaks length Liberty ships lifting pad lubricating machine manganese bronze manila masking tape master diver metal method middle ear necessary nitrogen nitroglycerin oakum open circuit voltage open hearth furnace oxygen parcelling and serving patch Pearl Harbor PETN Picric acid placed Plastic Explosive plate plosive plugs Portland cement possible pressure primacord primer cord pull pump recompression chamber removed salvage operations screw seawall secured Shaped charge sheaves ship ship's side Spark plugs spleen splice steel tube electrodes strands strength members suction surface tank top tappets threaded tongue and groove torch towing U.S. Navy underwater cutting underwater welding valve valve stem velocity of detonation vessel voltmeter welding wire rope wreck wreckage zinc