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238,858 · Cornell · "Cement Illuminating-Tiling" · Page 2 Home  > Prism Glass  > Patent Index  > Page 2

238,858: 2 of 3

having an illuminating surface composed of glass and asphalt has been constructed with integral ribs to form a cellular surface for affording side adhesion to natural asphalt; but these ribs do not surround the individual glasses or lenses so as to hold and protect them in the manner herein specified, nor are the glasses held therein so as to be water-tight independently of the asphalt filling of the tile.     I do not claim, broadly, an illuminating-tile having a cast-iron floor-plate constructed with integral ribs, flanges, or rims; nor rings surrounding the respective glasses or lenses in a cement illuminating-tile so as to prevent breakage of the glass by the expansion of the cement; nor an illuminating-tile having its surface composed of glass, metal, and cement or asphalt; but,     Having thus described my improved illuminating-tile, I claim as new and desire to protect by Letters Patent--     1. A cement illuminating-tile having its cast-iron floor-plate or grating constructed with integral glass-holding rims extending upward

around the respective light-holes, and forming rigid and water-tight walls between the cement and the glass, substantially as herein specified, for the purposes set forth.     2. A cement illuminating-tile having its cast-iron floor-plate or grating constructed with upwardly-flaring integral rims a, forming rigid and water-tight walls around the respective light-holes, with the glass held therein, and a cement filling held in the upwardly-tapering spaces between said rims, substantially as herein described.     3. A cement illuminating-tile having its cast-iron floor-plate or grating constructed with integral rims a, forming water-tight walls around the respective light-holes, with the glass held therein, and having its interspaces filled with cement, said rims extending to the top of the glass and cement, as shown, for the purposes set forth. JOHN M. CORNELL. Witnesses:     H. C. TUNIS,     THOS. CROCKER.