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It was a form of sodium peroxide (Na 2 O 2) or sodium superoxide (NaO 2). As it absorbs carbon dioxide in a rebreather's scrubber it emits oxygen. This compound was first incorporated into a rebreather design by Captain S.S. Hall and Dr. O. Rees of the Royal Navy in 1909.
Sir Robert Davis, head of Siebe Gorman, improved the oxygen rebreather in 1910 [2] [3] with his invention of the Davis Submerged Escape Apparatus, the first rebreather to be made in quantity. While intended primarily as an emergency escape apparatus for submarine crews, it was soon also used for diving , being a handy shallow water diving ...
Many diving rebreathers are descended from it. However, there were earlier underwater uses of rebreathers: Davis Escape Set for use in emergency by submariners from 1927 onwards; Siebe Gorman Salvus invented in the 1900s and first used in mines and by firemen; The rebreathers used by the Italian Decima Flottiglia MAS frogmen in World War II
The timeline of underwater diving technology is a chronological list of notable events in the history of the development of underwater diving equipment.With the partial exception of breath-hold diving, the development of underwater diving capacity, scope, and popularity, has been closely linked to available technology, and the physiological constraints of the underwater environment.
[70] [71] The earliest practical rebreather relates to the 1849 patent from the Frenchman Pierre Aimable De Saint Simon Sicard. [72] The first commercially practical closed-circuit scuba was designed and built by the diving engineer Henry Fleuss in 1878, while working for Siebe Gorman in London.
Lambertsen designed a series of rebreathers in 1940 (patent filing date: 16 Dec 1940) and in 1944 (patent issue date: 2 May 1944) [1] and first called his invention breathing apparatus. Later, after the war, he called it Laru ( acronym for Lambertsen Amphibious Respiratory Unit ) and finally, in 1952, he changed his invention's name again to ...
The first Interspiro rebreather was the ACSC - the alternating closed and semi-closed circuit rebreather which was developed and marketed in the 1980s. In the 1990s this design was developed further to become the DCSC, also intended for mine countermeasures.
The first version was designed by Fleuss and Davis in about 1906-1910. It had equal balance back and front of the wearer, and avoided projections on the back that could catch when crawling through holes. The more vulnerable parts were in front in sight of the wearer. The reducing valve was of the constant feed type. [3]