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314,026 · Jackson · "Illuminating Basements" · Page 2 Home  > Prism Glass  > Patent Index  > Page 2

314,026: 2 of 7

extend the full length of the tile and are recessed on the top to receive a cross-bearer, K, extending over and resting on the top of the next bearer and bolted to them, and the meeting edges of the tiles D and E rest upon this cross-bearer and are bolted to it, and cement is run in or pressed in between the tiles and all is made water-tight.     Fig. 7 shows the recessed longitudinal bearer I and the meeting edges of the tiles D and E, one end of which has a flange cast upon it and receives the end of the other on the top of the flange, and is bolted to it in the manner described.     In many cases these tiles must be laid so as to conform to the grade of the street, which may have considerable inclination along the front of the building. In order to support these tiles upon the proper grade, the bearers are so laid as to conform to this grade, the ends i, where they rest on the end supports, being of such different heights that the tiles will take the proper grade when they are laid upon them. In order to support the tiles at points between the bearers, either at the middle, or, if they are wide, at more than one point, I employ wedges or blocks J, of iron or other unyielding material, which are placed between the ends of the tiles and the surface upon which the bearers rest, thus preventing the tile from bending between the bearers and its end supports after the bearers, blocks, or wedges are adjusted, so that the surface is at the right grade. Either fusible cement is run in or plastic cement filled and pressed into the crevice, filling up the entire space between the end of the tile and its end bearings and surrounding ends of the bearers as well as blocks or wedges, so that they are united in a solid body, unyielding and water-tight, with very little expense. If these tiles are simply laid upon the bearers with their ends resting on brick-work, as shown in Figs. 10 and 11, without being secured, they might be lifted by the use of a bar or other device, as there is no means of fastening at the crown of the arch, so that burglars could obtain easy entrance into basements. In order to prevent this and secure the tiles firmly at their outer ends, I employ channel or other bars of iron, which extend along the outer edge of the illuminating-tile over the end supports, usually having a width of about two inches. These iron bars are secured to the beams by bolts or otherwise, and the outer ends of the tiles are then secured to these bars, by which means it will be impossible to raise or move them from their position. At points between the bearers these channel-iron bars may have bolts passing through the blocking bases before described and into the vault-beams below. The whole is then firmly secured, the channel-iron bars being supported at intervals between the bearers and prevented from bending.     I do not claim, broadly, a sectional extension

of the area or vault cover composed of sectional tiles inserted in or supported by a metal frame bolted to it, as described in the Reissue Patent No. 9,883 of T. Hyatt; neither do I claim an extension area or vault cover composed of sectional illuminating-tiles, each alternate tile having cast at one or both edges strengthening-ribs projecting laterally to form a seat for the next tile to rest on.     Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is--     1. Tiles covering areas and made in two sections in the direction of their length, said tiles being joined together at their meeting edges on the same plane, without intervening risers, the outer sections being rectangular in shape, and the inner ones having their inner edge made to fit the contour of the building-front, and without surrounding metal frames, together with supporting-flanges F G or beams H, as herein described.     2. Tiles covering areas and made in two sections, the outer one of which is rectangular in form and the inner one fitted to its inner edge, while its own inner edge is made to fit the contour of the building, said tiles being made without surrounding metal frames, and having supporting-flanges between the two and extending their entire length, together with bearers having strengthening-ribs and shoulders upon which the sections are supported, substantially as described.     3. Tiles covering areas and made in two sections fitted to each other and the building contour, as shown, having connecting-flanges between the two, together with bearings having deep strengthening-ribs and shoulders extending the entire length of both tiles, so as to rest upon the end supports, substantially as herein described.     4. Tiles covering areas and resting on strengthening-bearers extending longitudinally with both tiles, and having end supports, said bearers being made of different depths where they rest upon their end supports, so that the tiles may conform to the grade of the street, substantially as herein described.     5. Tiles made in sections covering areas, and resting on bearers which extend longitudinally with both tiles, and resting on the end supports, in combination with blocks or wedge-pieces on the end supports and between the bearers, and a filling of fusible or plastic cement about the blocks or wedges in the ends of the bearers, substantially as herein described.     6. Tiles made in sections covering areas and resting on strengthening-ribs which extend longitudinally with the tiles, in combination with iron bars extending along the outer edges of the tiles, which are secured to them, said bars being secured to the beam or girder, substantially as herein described.