Samuel Blatchford

“ It is entirely clear that the specification of the Todd patent decribes the grooves in the metal as being horizontal and vertical, and gives no other meaning to the words 'transverse' and 'longitudinal.' It describes the transverse and longitudinal corrugating or ribbing as producing projections which are bounded by horizontal and vertical grooves. From the evidence, Todd took the old zinc wash-board corrugated into horizontal grooves, and corrugated or ribbed it again, by vertical grooves crossing the horizontal grooves at right angles. ”

“ In the Galusha and Safford patent of December, 1857, there is shown a wash-board formed of corrugated sheet-metal. The specification states that the corrugations are formed of a series of elevations and depressions, the elevations and depressions being in parallel rows, and in alternate positions with respect to each other; that the corrugations are oblong, their ends and sides inclined, and their edges somewhat rounded ”

“ That description shows a sheet-metal wash-board provided with diamond-shaped projections, each bounded by diagonal grooves or depressions. The metal-plate is described as being crimped to form oblong diamond-shaped projections, having the largest diameter running transversely across the board, each projection being bounded by a diagonal groove or depression, the upper corner of each diamond, where the grooves cross each other, being raised higher than any other part of the same, and the corresponding lower corner being the lowest part of the diamond. ”