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505,044: 1 of 7

Patents: 268 of 530	UNITED STATES PATENT OFFICE. HENRY HAUSTEIN, OF SAN FRANCISCO, CALIFORNIA.	Henry Haustein 3 of 4
ILLUMINATING-TILE CONSTRUCTION. SPECIFICATION forming part of Letter Patent No. 505,044, dated September 12, 1893. Application filed March 23, 1893. Serial No. 467,383. (No model.)

To all whom it may concern:     Be it known that I, HENRY HAUSTEIN, a citizen of the United States, and a resident of the city and county of San Francisco, State of California, have invented certain new and useful Improvements in and Connected with the Construction of Illuminating-Tiles, of which the following is a full, clear, and exact description.     The object of my invention is to increase the strength and light-transmitting capacity of illuminating-tiles, which I accomplish by employing a mode of construction that enables me to make tiles of a large size and thereby do away partly or wholly with bearers, as also to largely reduce the number of joints found in other structures of same type and which involve the expenditure of much time and labor, are subject to leakage, and increase the cost of manufacture considerably.     My invention consists of a metallic plate provided with light-openings each of which is surrounded by an upwardly-projecting flange whose upper edge forms the seat of a lens and has in addition an annular rim or shoulder that keeps the lens from being shifted from side to side.     It further consists in providing the flanges that surround the light-openings in said metallic plate with lugs projecting upwardly within said rim and adapted to fit into corresponding recesses formed in the lower side of the lenses, thereby affording a better seat for said lenses and greater facilities for retaining them in place.     It further consists in the combination of the metallic plate with concrete or cement filling and screws cast in or fastened to the plate between the various light-openings, whereby the plate and concrete or cement are firmly bound together.     It further consists in providing the metallic plate with a downwardly-extending offset at each end, which runs within a short distance of its sides and raises them so that they may be slipped in between the flanges of the bearer usually connected therewith, thus bringing the supporting parts of the bearer in a line with the ends of the tile on its under side.     It consists, lastly, in forming adjacent tiles with indented or notched edges and light-

openings of peculiar construction by means of which I am enabled to join tiles together without the use of bearers and thereby produce tile-work that is closely united and lighter than is possible to make otherwise.     Referring to the accompanying drawings, in four sheets, which form part of this specification,-- Figure 1 is a broken perspective view of a tile-frame pertaining to my construction, showing the improved seat for the lenses and the concrete-retaining screws between the light-openings. Fig. 2 is a side elevation of the same, showing lenses in the light-openings and some of the concrete filling. Fig. 3 is a side elevation of a bearer used for supporting the sides of adjacent tiles. Fig. 4 is a broken perspective view of two tiles joined together with a bearer of the type shown at Fig. 3. Fig. 5 is a vertical cross-section taken from the line x x, Fig. 4. Fig. 6 is an elevation of a new form of lens entering into the composition of my improved illuminating-tile. Fig. 7 is a plan of the annular flange wherein the tile shown at Fig. 6 is seated. Fig. 8 is a broken top view of the tile-plate, showing how the spaces between the various light-openings may be partly filled in so as to facilitate the work of casting, strengthen the plate, and provide at times a substitute for the screws shown in the other figures. Fig. 9 is a broken plan, in two parts, of adjoining tiles the sides of which are so shaped that they can he united without the use of bearers. Fig. 10 is a vertical section on the line x x, Fig. 9, showing how the tiles illustrated therein appear when united. Fig. 11 is a bottom view of the light-openings formed by the meeting edges of the tiles represented at Figs. 9 and 10. Fig. 12 is a top view of the construction represented in the latter-named figures, with part of the lenses and concrete filling set in. Fig. 13 is a vertical section on the line y z, Fig. 9. Fig. 14 is a plan taken from the lower part of the two adjoining tiles, showing the offsets in the plates.     Like letters of reference are used to indicate like parts throughout the different views.     Let A represent a metallic plate, which is preferably cast in one piece and provided with adjacent rows of light-openings B.