Compact Steam Engine
Built by Brian Elvidge in October 2014
A modification of the model made by Nick Rodgers shown in 2013. The model has crankshaft driven by two side levers, as is the valve motion.
My example used a post-war № 2 clockwork motor renovated by myself as the spring was sticking badly. It is not known for certain whether this type of engine was commercially used. The original was designed and developed by the late Andreas Konkoly.