by Jan Willem Bech | Database Atmosferic Divingsuits
Return to 1903 in timeline John L. Watson John Watson designed a diving bell with some interesting futures. The diving bell was equipped with a toolbox placed on the outside of the bell. Also Watson made an escape system for the diver. The cover (G) is connected with... by Jan Willem Bech | Database Atmosferic Divingsuits
Return to 1903 in timeline Wichmann und Zopke Spiral wire armouring makes its appearance yet again in a design by Wichmann and Zopke in 1903. This proposes to encircle the diver’s trunk and tights with flat steel spiral bands drawn tight by a handle-operated ratchet.... by Jan Willem Bech | Database Atmosferic Divingsuits
Return to 1896 in timeline 1896 William Robert Fasey A dress proposed in 1896 by William Robert Fasey bears some resemblance to that of the Carmagnolles and to Careys. It is a plate dress with ball-and-socket joints, these being rendered watertight by... by Jan Willem Bech | Database Atmosferic Divingsuits
Return to 1895 in timeline 1895 James Baxter Murray and Stuart Murray and Stuart patented there suit in 1895. They used the old spiral technique and even used three layers to get the suit watertight. They received a GB patent 9755 in 1895. They use barrel-shaped... by Jan Willem Bech | Database Atmosferic Divingsuits
Return to 1893 in timeline 1893 Arthur Hemenger Arthur Hemenger was listed earlier when he obtained a patent in 1890. A later patent of Hemenger’s of 1893 carries the use of spiral wires considerably further. A metal casing is retained for the trunk, but both... by Jan Willem Bech | Database Atmosferic Divingsuits
Return to 1891 in timeline 1891 William Carey The strange-looking suit shown in the figures was invented by William Carey, of Southampton. It shows a plate suit, with ball-and-socket joints, but provision is made for easing the action of the joints by mounting... by Jan Willem Bech | Database Atmosferic Divingsuits
Return to 1870 in timeline 1870 Charles Wilson and C.F. Mudge Charles Wilson and Charles F. Mudge of Bridgeport patented a diving armor in 1870. Unfortunately I have not been able to find more information about there invention. I would be very pleased to receive... by Jan Willem Bech | Database Atmosferic Divingsuits
Return to 1838 in timeline 1838 William Taylor The problem with the Lethbridge gear was that the diver hardly had a possibility to move. This is something that has challenged inventors from that day on until today. The first guy that designed a suit with... by Jan Willem Bech | Database Atmosferic Divingsuits
Return to 1720 in timeline The late seventeenth and early eighteenth centuries saw an increased interest in the business of diving, and a proliferation of new designs of equipment. In the first half of the eighteenth century, a number of divers... by Jan Willem Bech | Database Atmosferic Divingsuits
1715 1715 John Lethbridge John Lethbridge (1675–1759) invented the first underwater diving machine in 1715. He lived in the county of Devon in South West England and reportedly had 17 children. Dive in 1715 1720 1720 Jacob Rowe In the first half of... by Jan Willem Bech | Database Atmosferic Divingsuits
Return to timeline 1715 1715 John Lethbridge first known atmospheric ‘suit’ John Lethbridge (1675–1759) invented the first underwater diving machine in 1715. He lived in the county of Devon in South West England and reportedly had 17...
by Jan Willem Bech | Database Oxygen Rebreathers, Database OX GER
Bergbau-gerät 1923 with breathing operated oxygen addition Inflation and economic crisis force the Dräger Company to close its plant and lay off all its workers. After the end of the war(1914-1918), the market for Dräger products shrinks; the Company is forced to turn...
by Jan Willem Bech | Database Oxygen Rebreathers, Database OX GER
Development of the Dräger lungenkraft dossiergeräte During the First World War, the first breathing apparatuses with breath-controlled dosage were designed and used. Examples of these early types are the HSS gerat (link) and Selbstretter Dräger Tübben (link). In other...
by Jan Willem Bech | Database Oxygen Rebreathers, Database OX GER
Inhabad Gastauchgerät modell 1923 The Inhabad Gastaucher is a breathing apparatus designed by Professor Woltersdorf. Woltersdorf, a professor at the Breslau University of Applied Sciences (12-08-1875 – ?), was the ‘bergassessor’ of the...
by Jan Willem Bech | Database Oxygen Rebreathers, Database OX GER
1920 Dräger Lungenautomatisches Überdruckgerät, versuchgerät In 1920 the period in which mainly injector systems were used came to an end. More and more manufacturers were producing lung-controlled systems that injected the gas dose via the counter lung. The picture...
by Jan Willem Bech | Vademecum
Oxygen as a breathing gas Oxygen is a colorless, odorless, tasteless gas. Carl Wilhelm Scheele Oxygen was discovered in 1771 by the Swedish pharmacist Carl Wilhelm Scheele. The rediscovery by Joseph Priestley only made it more widely known. It was soon understood that...
by Jan Willem Bech | Vademecum
Why are divers wearing weight belts? Divers Lead weights You all know the phenomenon that if you throw something into the water one object will float and the other will sink. At first you think about the weight, a brick is much heavier than wood, isn’t it? But...
by Jan Willem Bech | Vademecum
This page explains how the pressure of gases in a gas mixture develops underwater. John Dalton (1766-1844) lived in England and was originally not encouraged to study by his church background. He was inspired by John Gough, a blind English philosopher of nature and...
by Jan Willem Bech | Vademecum
This page is about the relationship between pressure and volume In 1627-1691 lived an Irish scientist who before diving drafted perhaps the most important law named after him, Boyle’s Law. Sometimes this law is also called Boyle-Mariotte law. The French...
by Jan Willem Bech | Vademecum
This page explains why the pressure increases underwater and how to calculate it This page is meant for non-divers who are reading a first time about underwater sports. The pages in the vademecum provide information about very well known theory to advanced rebreather...
by Jan Willem Bech | Homebuilders Homebuild Rebreather
Accessories HBRA, Homebuilders
This article written by Avery Louie gives a lot of inside information about testing the galvanic sensors used in rebreathers The Science Sr. doing what it does best In the last post I alluded to a larger pressure pot- the Science Sr. This was totally based off of...
by Jan Willem Bech | Homebuilders Constant Injection Oxygen Rebreather CIOR, Homebuilders
Avery build a smart oxygenrebreather. He explains in detail: Holding onto the rock of great buoyancy, in the Atlantic After feeling a bit like a snail in a shell in my last rebreather, I decided I wanted to make something a lot smaller and more ergonomic. Hence the...
by Jan Willem Bech | Homebuilders, Homebuilders Manual Operated Oxygen Rebreather MOOR
Averie Louie oxygen rebreather prototype Avery Louie send me information about his diving projects. He worte some very interesting articles about building rebreathers and a pressure pot. Search for Aylo for his adventures. His website can be found here:...
by Jan Willem Bech | Database Oxygen Rebreathers, Homebuilders Manual operated Closed Circuit Systems MCCR, Homebuilders
Frank build his mCCR Dolphin and improved it during three years! I have builded myDolphin mCCR in about 3 Years and now i think its finished! This Unit has the Name “Dark Side Dolphin” Release 4.5 I dive this Unit in the German Lakes and in...
