I do not intend to confine myself to the lozenge cells, as it is obvious that square and some other forms will do as well.
Neither do I intend to confine myself to ribs or ridges intersecting each other, as it is evident that ridges forming various figures will answer much the same purpose, such, for instance, as run circular, parallel, serpentine, zig-zag or angular, or any other raised surface of rubber.
Nor do I confine myself to rubber alone as the only gum, as gutta-percha, and other gums may be substituted for it.
I claim the mat as formed by ridges or grating, together with the cells or spaces, of whatever form, the one to serve as scrapers to clean the foot, and the other to contain the dirt, whether of rubber, gutta-percha, or other flexible gums.
One hundred and thirty-first, to Gustavus Cuppers, of College Point, N. Y., July 20, 1858. For manufacture of Hard Rubber Goods.
I wish to have it distinctly understood that I do not claim as my invention the heating or curing process, as it is called, nor the combination of India-rubber and gutta-percha with sulphur, nor any other combination already patented and described.
But I claim the improvement in the hardening or curing process of caoutchouc or India-rubber and of gutta-percha, by which articles, wares, goods and merchandize may be manufactured into any desired size, form or shape, substantially as described.
One hundred and thirty-second, to Abraham Brower, of New York City, July, 1858. For Water-proof Cement.
I am aware that water-proof compositions for leather consisting of tallow, suet, wax, rosin, tar, oil, and India-rubber have been employed; these I do not claim of themselves, singly or combined.
I am not aware, however, of shellac or glue ever having been employed in unctuous water-proof compositions for leather; but these I do not claim of themselves in my composition, apart from the other ingredients, as all are required combined, to render it so excellent for the purposes set forth.