Samuel Blatchford

“ In California Artificial Stone-paving Co. v. Molitor, 7 Sawy. 190, S.C.. 8 Fed. Rep. 821, in the district of California, in May, 1881, the defendant's pavement was made by cutting a lower course into sections with a trowel, to a greater or less depth, according to the character of the material, making a joint, and doing the same with an upper course, the upper joint being directly over the lower joint. Into the open joint, in cacy case, was loosely put some of the partially set material from the top of the laid course, answering the purpose of tar-paper. ”

“ Concrete pavement having been before laid in sections, without being divided into blocks, the invention of Schillinger was held to consist in dividing the pavement into blocks, so that one block could be removed and repaired without injury to the rest of the pavement, the division being effected by either a permanent or a temporary interposition of something between the blocks. It was held that the effect of the disclaimer was to leave the patent to be one for a pavement wherein the blocks are formed by interposing some separating material between the joints ”

“ While the mass is plastic, I lay or spread the same on the foundation or bed of the pavement, either in moulds or between movable joists of the proper thickness, so as to form the edges of the concrete blocks, a, a; one block being formed after the other. ”