Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

A ball bearing as a non return valve and a piston with holes and a round T shaped valve that sits inside the piston

Dennis, I am interested in pictures of the piston of the pump. Actually of the whole inner workings.  I have followed your report on the construction of the Pericaud, but I have not seen detailed pictures of the piston and the non-return device. Or did something pass me by? My old head is a bit sloppy sometimes.