Samuel Blatchford

“ In the Nash reissue it is stated that the function of either form of valve described 'is to regulate the flow of water in and out of the spaces of the cylinder in such manner as to produce the compound rotation and cross movement of the piston.' But in the defendant's meter the water is admitted and discharged in such a way as to prevent any motion of the piston except a sliding movement, which is neither a compound rotation nor a cross movement, within the meaning of the Nash reissue. ”

“ The piston of a water meter, pump, or motor constructed with alternate recesses and bearing points or projections, a and b, and a cylinder chamber having alternate wall recesses and bearing points or projections, a' and b', adapted to intermatch with each other at one or more bearing points at one side of the cylinder, and allow the projections of each part to bear upon and to pass each other at two or more points at a different side of the chamber, to allow the piston to revolve while it also rocks in constantly changing lines across the center of the cylinder chamber, for the purpose stated. ”

“ The Galloway engine was a steam engine. At that time it was well known that steam and water engines, whether rotary or reciproacating, could be used as meters to measure the flow of fluids passed through them, and various forms of both kinds had been used as meters. The original patent of Nash states that it is contemplated to use the apparatus as a motor or as a pump, and so does the reissue. ”