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315,412 · Hyatt · "Illuminating Tiling and Grating for Covering Vaults, Roofs, &c." · Page 5 Home  > Prism Glass  > Patent Index  > Page 5

315,412: 5 of 9

cement at the junction edges, which will be of a good width or depth vertically, as illustrated by Figs. 16, 17, and 18, which represent side elevations of fractional gratings overlaid with cement, 16 and 17 representing gratings wherein the rows of light-holes run transversely to the combination tile, as seen in Fig. 15, and as a consequence produce junction sides with a raw edge of cement having no break in it by reason of the light-holes, whereas, when the light-holes run in the ordinary way, as shown in Figs. 11 and 12, and in Fig. 14 in panels b' and b², the raw cement edge of the fractional grating is broken on the junction line, as shown in Fig. 18, where the light-holes e e break the continuity of the raw concrete, and to this extent interfere with the perfection of the cement bond between the fractions when they are united to form the combination-tile. The advantage of concreting the fractional gratings is thus made manifest, and the further advantage of running the light-holes transversely to the combination-tile is clearly shown.     g indicates the cement joint-seams between the fractional gratings, and g' indicates cement construction-seams between the same and the structural frame-work that supports them.     It may, therefore, be now understood, referring to Figs. 15 to 18, that the fractional tiles made as described may be easily fitted into the panels of the foundation frame or structure, where their junction edges may closely approach to form one continuous combination-tile to cover said panel-space with the greatest possible amount of light admission, and when so placed cement can then be deposited in the sides of the fractional gratings in the joint-seams and between the sides of the combination-tiles, (thus formed in loco,) and the blades of the rafters or supporting cross-bars, and between the ends of the combination-tiles and the marginal surrounding border of the structural frame-work, as shown at g and g' in Figs. 15, 16, and 17, which cement will not only fix each fraction firmly to the borders of the panels of the foundation-frame, but will also unite the fractions together into one uniform tile; and if the cement employed be hydraulic cement, similar to the facing of the fractions, (which is what I recommend,) the fixation of the same will be homogeneous and particularly secure and solid, and each panel will present the appearance of being filled with one continuous tile of equivalent value in both use and beauty to the one-casting tiles commonly employed, but more cheaply and easily made, thereby producing very great advantages to the art of illuminating-tile manufacture; hence by this system of fractional construction and cement fixation the necessity of bolting the tiles to the frame-work, as usually performed, may be entirely dispensed with, the fractions being small and light being capable of being fixed by cement, and, being small, are easily cast without warpage, and therefore need no bolting to the

frame-work to take them out of whereas the one-casting tiles being large and warped require bolting to bring them level and straight upon their beds in the structural frame-work. Hence my invention of fractional gratings and cement fixation as described serves both to render the joints water-proof and at the same time to secure the tiling permanently in place, which is a most important advantage in the art of patent-light construction. On the contrary, as has been already said, in the one-casting panel-tile system of construction bolting cannot be dispensed with on account of the usually irregular or warped form of the castings, which require bolting to bring them level and keep them so in the panels.     It will therefore be seen that the system of tiling herein described presents a great improvement over the old system in many important particulars. Thus when the tiling is made in small pieces or sections,as fractions of a combination-tile, such fractions can be manufactured very cheaply as stock material, and, being small, can be cast very accurately and as perfectly flat as stove-castings, true and free from the warpage that is unavoidable in large castings, thus enabling the fractional gratings, whatever the number of them used in the construction, to form a uniformly level surface by being simply laid in position one with another, in this way saving all the labor of fitting, bolting, and drilling now necessary in the one-casting tile constructions; secondly, the loss from imperfect castings will necessarily be much less than is the case with single-panel castings; thirdly, the fractional tiles will be very portable, and may be very easily handled in moving and laying the same, and will thus require less labor than would be the case with large and heavy castings; fourthly, they can be easily packed and transported; fifthly, they may be manufactured in large quantities in regular definite sizes and shapes, which may be easily catalogued and classified, and adapted for all kinds of architectural work, and may be thus kept in stock and sold as regular articles of merchandise, instead of being required to be made to order for each special job, as heretofore; finally, with all these advantages of economy and efficiency the new system gives the greatest possible amount of light in each panel, which, with the other results set forth, renders my invention an important and novel advance in the art of patent-light manufacture and construction.     What I claim as my invention is--     1. Illuminating tiling or gratings made in fractional panel-sections without dead-work borders on their junction sides or edges, and adapted to abut directly together to fill the panel-spaces without sacrifice of light, substantially as set forth.     2. Illuminating tiling or gratings made with light-holes arranged on the honey-comb principle, and divided into fractional sections directly across the field of light-holes, without