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Hi All Here is a video of my Denny hot air engine that I have just finished working on, and described yesterday in the finished project section. Hugh.

Hi All A while ago I came across an engine on Google which I had not seen before named a Denny improved hot air engine, I could see straight away that the working geometry was similar to that of the Rider-Ericsson engines that we often see, but that the mechanical configuration differed in that...

Hi All Back last year looking on Google I came across an engine that I had not previously heard of before namely the Bremen Caloric Pumping Engine. I don`t think that there are any full size working engines around these days, certainly not here in the UK, but a few model engine have been made...

Hi All As I see a 1/4 scale Rider-Ericsson pumping engine is now being shown in work in progress I thought I would show you a video of my scratch built Rider-Ericsson. It was built using the drawings in the book S&S you can build which are for a 2" bore engine. I scaled mine down to 1 1/2" bore...

Hi All this is a picture of a little hit and miss engine to David kerzel`s design which I have mounted on a little 4 wheeled trolley and fitted it with a small gas tank, at the other end is a small box which houses the electronic ignition circuit and the batteries. Hugh

Hi all As I see there is a fair amount of interest in hit and miss engines, I thought that I would try and send you a video of my engine that I finished earlier in the year. It is 1 1/4" bore x 2" stroke and apart from the flywheels is built up from plate, bar stock, and sheet...

Hi all I thought i would try and post you a picture of my latest engine, rider-ericsson hot air pumping engine Edit by Lazylathe and Dsquire