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On 14/04/2020 17:17, Gordon Henderson wrote: > On Tue, 14 Apr 2020, Eion MacDonald wrote: > >> If living there, I would prefer *something rather than nothing*. >> No ability to buy NHS high spec, high cost stuff. > > People are *grossly* overthinking this. > > When we wanted to, we could build a oil fired steam powered cargo ship > from plate steel to launched and sailing over the atlantic in under a > day. (3 ships every 2 days) > > https://en.wikipedia.org/wiki/Liberty_ship > > So: > > A welder and some sheet metal and girders that you can weld and cut. > Some neoprene or latex rubber. (From a standard diving drysuit) A motor. > Pullys or a gearbox, metal rods and a good engineer could make the first > workable "Iron Lung" in a day or 3. Subsequent ones will be much faster > to fabricate. No computer required. > > https://en.wikipedia.org/wiki/Iron_lung > > Polio victims have lived in these for decades. > > and the idea is already gaining traction: > > https://www.telegraph.co.uk/news/2020/04/11/iron-lung-backed-stephen-hawkings-family-trialled-covid-19-patients/ > > > https://www.theengineer.co.uk/exovent-covid-19-ventilator/ > > (although I have no idea why that looks like it has some sort of > computer control and flasing lights on it - completely not needed - you > can mechanically control the tidal volume to the required amount > (usually 4 liters or so) and stick in a standard mechanical over > pressure valve to stop over inflation. > > Gordon > Many Thanks for link to exovent. -- Regards Eion MacDonald -- The Mailing List for the Devon & Cornwall LUG https://mailman.dcglug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq