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Peter H. Jackson
7 of 14

SPECIFICATION forming part of Letters Patent No. 314,026, dated March 17, 1885.
Application filed July 21, 1884. (No model.)
To all whom it may concern:
    Be it known that I, PETER H. JACKSON, of the city and county of San Francisco, and State of California, have invented an Improvement in Illuminating Basements; and I hereby declare the following to be a full, clear, and exact description thereof.
    My invention relates to certain improvements in the illumination of basements of buildings by means of glazed tiles.
    It consists of tiles made in patterns of such a description that they can be kept in any quantity and in stock and ready for use upon any building without regard to the regularities of outline in the contour of the building-front, and in connection with these of similar plates, which may be either plain or glazed, which will be fitted to the outline or contour of the building where the tiles are to be used. Together with this I employ certain means for supporting the different parts, joining, them to each other, and forming joints between them which will not leak, all of which will be more fully explained by reference to the accompanying drawings, in which--
    Figure 1 is a plan view showing the irregular outline of the building-front and the manner of applying tiles. Figs. 2 to 11, inclusive, are vertical sections taken through a tile, showing the bottom of the column, the riser, and means for supporting the outer and inner ends of the tiles and the bearers.
    It is usual where a new building is to be constructed, and illuminating-tiles or iron-work is to be fitted to the pavement or sidewalk in front of the building, to wait until the columns, sills, and risers are placed in position before the tiles are constructed, in order to make good joints and a close fit between parts. This is necessary, because these parts of the iron-work rarely come into the exact place which is designated by the drawings, owing to the slight change in the form in casting the metal, or from other reasons. The tiles are then fitted to the irregularities of the contour of the front of the building, and are then glazed and placed in position.
    My invention contemplates the construction of tiles of a certain length, made preferably of rectangular form, so that they can be laid in front of the building without regard to the contour, and with these of supplemental irregular
plates or tiles, one edge of which will be fitted against those already described, while the other may he fitted to the contour of the building.
    It also consists in a means for supporting these sections and connecting them so as to make water-tight joints.
    A is a building, the front having columns B B, riser C, and sills, in the usual manner.
    The tiles D are made of any suitable or desired form, but preferably rectangular in shape, and made to fit tile outer edge of the contour tiles or plates, and of an equal size, with means for seen ring them in place, so that in whatever building they may be employed they can be laid without reference to the particular contour of the building. These tiles have their inner edges supported within a certain distance of the building, and the space between is then filled in with tiles or plates B, which are formed to fit the irregularities of the front. By this construction I am enabled to carry any desired quantity of tiles in stock ready to be laid, and the only portion which it is necessary to fit to the particular building in consideration will be the sections E, and this can be done at a small expense and in a short time.
    In order to secure these tiles and pieces, various means may be used. In the figures from 2 to 8 I have shown several methods.
    In Fig. 2 the riser has a flange, F, projecting outward from its lower edge,and the inner edge of the separate pieces B may rest upon it, while the outer edges of these pieces have vertical and outward-projecting horizontal flanges G, upon which the tiles D may rest, and to which they may bolted.
    In Fig. 3 I have shown the riser and the filling-in piece cast in one with the same flange for supporting tile D.
    In Fig. 4 I have shown a small beam, H, upon which the inner edge of the tiles D and the outer edge of the plates B may rest and be secured. The meeting edges of the tiles D are supported upon bearers I, which extend inward to the supporting-flange and from them outward to the wall, vault-beam, or girder, forming an end support or flange, upon which the tile rests. The bearers are constructed with deep strengthening-ribs, as shown in my patent of August 29, 1883 [sic], and these ribs