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431,468 · Jacobs · "Illuminating-Tile" · Page 2 Home  > Prism Glass  > Patent Index  > Page 2

431,468: 2 of 4

3. As an improvement in illuminating-tiles, a metal frame or body which is provided with parallel lines of light-openings, has within each opening vertical ribs at the intersection of the curbs of contiguous openings, and has at its lower side around each of said openings outwardly and downwardly inclining faces, substantially as and for the purpose specified.     4. As an improvement in illuminating-tiles, a metal frame or body which is provided with round light-openings that have each one or more vertical peripheral ribs, in combination with glass lenses that are adapted to fit into such openings, and to fit over and engage with said ribs, substantially as and for the purpose set forth.     5. The hereinbefore-described illuminating-tile, in which is combined the frame or body

that is provided with rows of round light-openings which have each a peripheral vertical rib, and has smaller square light-openings arranged between contiguous round openings, glass lenses that are placed within said round openings and adapted to fit over and engage the said peripheral ribs,glass lenses which are placed within said square openings, and cement that is placed within and caused to fill the spaces between the sides of said lenses and the walls of their openings, substantially as and for the purpose specified.     In testimony that I claim the foregoing I have hereunto set my hand this 11th day of February, A. D. 1890. JACOB JACOBS. Witnesses:     D. G. BEECHING,     MALHON KOERNER.