Siebe Gorman “Aqua-Lung” #1299
In Collaboration with Henry Fleuss, an officer in the English merchant navy, Siebe-Gorman developed the first oxygen rebreather. It was initially intended as a mountain rescuer and worked underwater as well as in a non-breathable atmosphere. It was tested in a water tank in 1879 and later in the sea to a depth of 5.5 m.
In 1904 Siebe Gorman received a patent for Oxylite, a mixture that gives off oxygen when it reacts with CO2 or water.
In 1905 Robert Davis developed the “Davis diving rescuer” at Siebe Gorman as a rescuer from submarines.
In 1942 SG presented the Salvus ANS oxygen circulation device, which had the breathing bag on its back.
In the 1950s, two-hose regulators were also produced under license from La Spirotechnique for the Commonwealth, but not in sufficient numbers and hardly priced for the sporting sector.
After SG took over Heinke in 1962, the advantages of both companies were combined and the famous Merlin Mark VI developed, which was widely used worldwide and also used by the Royal Navy for 20 years.
Around 2000 SG disappeared from the market after several name changes and sales.