This is one of Ben Peakes unique engines. This particular engine incorporates many different technologies of the time in one engine. I.e. the sun and planet crank, half beam technology and many other fine examples of ideas that not necessarily made front page news. These are stand alone engines. I.e. no boiler. But I hook mine up to my Wilesco D20 and off she runs. A lovely unique engine that I enjoy having in my collection.
If you want to find out more just visit my links page for the website.