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. The matal was supposed to be strong against any marine life. One of its two hoses supplied air from the surface via a bellows and the other one evacuated the exhaled air.
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Also, one of its two hoses supplied air from the surface via a bellows and the other one evacuated the exhaled air.
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This airtight oak barrel was used to salvage valuables from wrecks. Another Englishman, Andrew Becker, developed a similar system in the same year, but that suit had a system of tubes for inhaling and exhaling, too.
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The inventor tested it in the river of his hometown, Breslau (now Wroclaw, Poland). The head of the suit was protected by a cylinder-like tin plate and the design allowed to walk on the riverbed.
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The first Scuba apparatus to be developed in scuba diving history was invented by Benoit Rouquayrol and Auguste Denayrouse, which included a diving helmet, a compressed air tank and an early rudimentary demand regulator.
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In 1873, Benoît Rouquayrol and Auguste Denayrouze built a new piece of equipment a rigid diving suit with a safer air supply, however it weighed about 200 pounds.
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Modern scuba diving gear consists of one or more gas tanks strapped to the divers back, connected to an air hose and an invention called the demand regulator. The demand regulator controls the flow of air, so that the air pressure within the diver's lungs equals the pressure of the water.