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.
It is chiefly valuable as an instance of what to avoid. Wichmann und Zopke patented there “invention” in 1903 in Germany.
Wichmann und Zopke’s patent can be found here:
https://worldwide.espacenet.com/patent/search/family/000428674/publication/DE162931C?q=pn%3DDE162931C
Therebreathersite was founded by Jan Willem Bech in 1999. After a diving career of many years, he decided to start technical diving in 1999. He immediately noticed that at that time there was almost no website that contained the history of closed breathing systems. The start for the website led to a huge collection that offered about 1,300 pages of information until 2019. In 2019, a fresh start was made with the website now freely available online for everyone. Therebreathersite is a source of information for divers, researchers, technicians and students. I hope you enjoy browsing the content!