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A Swedish Navy submarine rescue diving bell from the early 1940s Diving bells have been used for submarine rescue . The closed, dry bell is designed to seal against the deck of the submarine above an escape hatch.
Charles Bowers Momsen (June 21, 1896 – May 25, 1967), nicknamed "Swede", was born in Flushing, New York. [1] He was an American pioneer in submarine rescue for the United States Navy, and he invented the underwater escape device later called the "Momsen lung", for which he received the Navy Distinguished Service Medal in 1929. [1]
Close the diving bell door, which would have been open to the trunk. Slightly increase the pressure in the diving bell to seal the bell door tightly. Close the chamber 1 door, which was also open to the trunk. Slowly depressurize the trunk until it reached a pressure of 1 atm. Open the clamp to separate the diving bell from the chamber system.
The wet-bell is used for air-diving with two divers at a time to a maximum depth of 60 metres (200 ft). The divers are equipped with hot-water suits, TV cameras, and constant communication with the diving supervisor on board the Belos. A slide leads from the divers' exit point to the chamber to speed up the surface decompression process.
More than 30 years after the ship's sinking, in 1663–1665, Albreckt von Treileben and Andreas Peckell mounted an effort to recover the valuable guns. With a simple diving bell, the team of Swedish and Finnish divers retrieved more than 50 of them. [71]
Illustration of an occupied diving bell.. The diving bell is one of the earliest types of equipment for underwater work and exploration. [10] Its use was first described by Aristotle in the 4th century BC: "...they enable the divers to respire equally well by letting down a cauldron, for this does not fill with water, but retains the air, for it is forced straight down into the water."
In the 1960s, diving expert Bo Cassel made some successful descents to Vasa with a diving bell made according to 17th-century specifications. In 1986, further experiments were done on Kronan . The tests proved successful and the conclusion was that the 17th-century operations must have required considerable experience, skill and favorable ...
The diving and submarine rescue ship HSwMS Belos (A214) The escape system (which includes all Swedish submarines being fitted with a single person escape trunk, personal escape equipment on board the submarines such as escape suits, and an escape training tank ashore at Karlskrona Naval base) (link to new wikipage on dyktanken).