But in thinking about what you say, I don't really understand why the stresses would be greater at the end-stroke as compared to the mid-stroke position of the piston. Sometimes I feel a bit thick, but I want to get it. Where would you say the greatest magnification of force would be if the piston is stopped near the end stroke? The gudgeon? Big-end bearing? Elsewhere? Sorry to ask, and hope you don't mind explaining further. I did Google over-centre mechanism but didn't find anything helpful.
