OMG Trevor .... what amazing engines you are showing here.
Love the vertical Stirling Cycle engine that appears to be based on the Rider patents. I'm especially taken with the angled crank pin operating the pump. Seems a simple and obvious mechanical solution, but I've never seen the like of it before now. Very nice ... as is the cascade accessory that it is supplying with water.
That Stuart Sandhurst is one lovely beast of an engine, of which I've never seen nor heard of before now.
Two extraordinary engines that are completely new to me .... thanks so much for introducing me to these wonders!
Then while I was typing the above, you go and add a new video with the always amazing Wilesco D32 and a beyond wonderful Pericaud Workshop that is just beautiful. I especially like the tools that are wearing crowned flat belt pulleys, that also have a V-groove in the center for use with round section belts .... NICE!!!