Jowitt Poppit Valve Model Steam Engine
An usual engine, this is a Jowitt Poppit Valve Model Steam Engine. Made by Chelston Model Engineering in the
mid 1980s as a casting kit. Said to be based on a design by Samuel G Jowett from 1907. Cams on either side of
the crankshaft operate sprung 'poppit' valves for the inlet and exhaust.
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