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405,778 · Jackson · "Frame for Illuminating-Tiles" · Page 2 Home  > Prism Glass  > Patent Index  > Page 2

405,778: 2 of 4

and uniting the whole in one piece and preventing leakage.     When the tiles are to be subjected to severe usage, as foot-travel, I introduce small vertical bars J between the edges of the glass M, the spaces being sufficient to admit these small iron bars and the necessary amount of cement to support and secure when in place and secure the glass as well. The top of these bars protect the edges of the glass in one direction and the top of the T-iron in the opposite direction. For roof-lights these bars J would not be needed, as they are not subjected to severe usage.     The spaces in the frame before mentioned as being blocked up by a single glass may be made up by two or more glasses united by any cementing or other material and filling the space usually occupied by a single glass, as in Fig. 3.     Any suitable plastic filling-cement may be employed to make the glass bear evenly all around and to secure it in place, or a fusible cement may be run in, which fills to an even bearing beneath the edges of the glass, and also at the sides between it and the iron all around; or, if desired, Portland cement may be used to make the bearing-surfaces for the glass and to fill up at the sides, or any other plastic material which will harden and stick to the glass and iron.     In some cases, where the proper size rolled T-iron bars cannot be obtained, I may use cast bars having similar-shaped flanges and having a rib projecting below, as shown at K, Fig. 4, for the purpose of strengthening the lower part below the slot-holes, the slot-holes in this case being cast in the bars, and the flat wrought bars being passed through the slot-holes, as before described.     In cases where beam-risers are shown at each end of the illuminating-tile, the end bars maybe omitted, as the risers themselves serve to support and protect the outer edges of the glass, as shown in Fig. 3.     Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is--

1. An illuminating-tile frame consisting of T-iron supporting-bars, slotted, as shown, and transverse flat bars passing through said slots and forming supports for the tiles, substantially as herein described.     2. An illuminating-tile consisting of a frame-work having the slotted T-iron bars, with flat bars passing transversely through the slots, with glass blocks fitting into the spaces and supported by the frames beneath, with a cementing and filling material beneath and between the glass, substantially as herein described.     3. An illuminating-tile consisting of the frame-work formed of T-iron bars having slot-holes, with transverse flat bars passing through said slots, forming rectangular spaces for the reception of glass, outside bars of angle-iron, and the flanges of which the T-bars are secured, substantially as herein described.     4. An illuminating-tile consisting of the frame-work composed of T-iron bars having slot-holes, and flat bars passing transversely through said slot-holes, angle-iron end pieces fitted and bolted to the ends of the T-iron bars and forming a frame with regular spaces, glass plates fitting said spaces and supported upon the horizontal surfaces of the bars, and a support and filling of cement beneath and around the glass, substantially as herein described.     5. An illuminating-tile consisting of a frame-work of slotted T-iron bars, with flat bars passing through said slots, and angle or equivalent iron end pieces to which the T-iron bars are secured, and a filling of cement or metal strips upon which the glass is supported, vertical strips of iron between the glass, and a surrounding filling of cementing material whereby the whole is secured together, substantially as herein described.     In witness whereof I have hereunto set my hand. PETER H. JACKSON. Witnesses:     S. H. NOURSE,     H. C. LEE.