{"product_id":"siebe-gorman-davis-submarine-escape-apparatus","title":"Siebe Gorman Davis Submarine Escape Apparatus","description":"\u003cp\u003eRare Davis Submarine Escape Apparatus by Siebe Gorman \u0026amp; Co Ltd. London from the 1930's.\u003c\/p\u003e\n\u003cp\u003eThis device was invented by Sir Robert Davis, head of Siebe Gorman, to prevent anoxia and long overpressure illness for divers ascending fast through water. It \"\u003cspan style=\"font-size: 0.875rem;\"\u003eadjusts\"\u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e the pressure in the lungs to the decreasing underwater pressure when the depth decreases. It was invented in 1910 and was adopted by the Royal Navy around 1927. They used it till the 1950's\u003cspan\u003e with limited success at several sunken submarines, for example the HMS Poseidon (1931), HMS Thetis (1939) and HMS Perseus (1941).  \u003c\/span\u003e\u003csup class=\"mw-ref reference\" id=\"cite_ref-5\" rel=\"dc:references\" data-mw='{\"name\":\"ref\",\"attrs\":{},\"body\":{\"id\":\"mw-reference-text-cite_note-5\"}}'\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eThe DSEA for sale here is still in the original box. It shows some ageing. For a good working of the apparatus a canister of barium hydroxide and a compressed oxygen were also necessary. These are not present of course. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eWe haven't tested it!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eTake a good look at the photos for a good impression!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe dimensions of the box are 47 x 40 x 11cm. and the total weight is around 4.5 kgs.\u003c\/p\u003e","brand":"Volanticus","offers":[{"title":"Default Title","offer_id":55456207044935,"sku":null,"price":495.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/5736\/9415\/files\/rn-image_picker_lib_temp_abd4c0bc-76b9-4649-a01b-61a1e6d5e21c.jpg?v=1792244777","url":"https:\/\/volanticus.com\/products\/siebe-gorman-davis-submarine-escape-apparatus","provider":"Volanticus","version":"1.0","type":"link"}