The mind Boggles, to run a Newcomen engine properly, a vacuum supply is needed surely? The cylinder sucks, it does'nt blow.
The engine featured, however, does give us all an insight into how they worked things out back then and might spark some innovitive thinking in today's generation.
(god, I wish they'd get a spell checker on here)
Always remember, nature is in charge, get it wrong and it is you who suffers!.