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286,542 · Hyatt · "Illuminating Vault-Covers or Grating-Tiles and Surfaces Made of the Same" · Page 1
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Patents: 159 of 511
UNITED STATES PATENT OFFICE
THADDEUS HYATT, OF NEW YORK, N.Y.

First: 4,266 · Hyatt · "Illuminating Vault Cover" · Page 1 Last: 365,306 · Hyatt · "Vault-Covering, Illuminating-Tiling, &c." · Drawing 2 Prev: 286,137 · Hyatt · "Vault-Light Roof and Sidewalk for Constructing Basements, &c., to Buildings" · Page 1 Next: 288,571 · Hyatt · "Vault-Cover or Illuminating Grating-Tile and Surface Made Thereof" · Page 1 Navigation
Thaddeus Hyatt
56 of 67
ILLUMINATING VAULT-COVERS OR GRATING-TILES AND SURFACES MADE OF THE SAME.
SPECIFICATION forming part of Letters Patent No. 286,542, dated October 9, 1883.
Application filed September 11, 1883. (No model.)
To all whom it may concern:
    Be it known that I, THADDEUS HYATT, a citizen of the United States, residing at the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Illuminating Vault-Covers or Grating-Tiles and Surfaces made of the same, of which the following is a description, reference being had therein to the accompanying drawings, making part of this specification.
    My invention relates to the sort of illuminating gratings and constructions known to the trade by the name of "concrete lights," made by combining an overlayer of hydraulic cement or concrete with glasses and a perforated floor-plate or grating-glass holder.
    The object of my invention is to cheapen and facilitate the making of such lights and constructions by the employment of gratings in the form of bars, slats, or strips more readily cut to length than wide plates, and made with half-holes or partial holes along the matching edges, so that the lateral union of them produces whole hole-gratings of any width, that, when set with glass and overlaid with concrete, are perfectly water-tight, however many joints there may be by reason of the number of bars or slats employed, the glasses set along the lines where the slats are joined transmitting light equally with the glasses set along the lines in the whole holes, and the concrete overlayer between the glasses being continuous and of uniform appearance between the glasses over the entire surface, of howsoever many strips, pieces, or plates it may be made.
    The object of my invention, furthermore, as a means of cheapening concrete lights, consists in making use of perforated wood plates, slats, bars, or gratings, as aforesaid, in place of metal, in combination with glasses and concrete, such wood plates or gratings having been previously treated chemically by charring, vulcanizing, or being otherwise treated to insure the wood against decay by any of the methods set forth, alluded to, or specified in my American Letters Patent No. 286,012, and dated October 2, 1883, for the making of illuminating-gratings of such material when not overlaid with concrete.
    A further object of my invention, as a means
of cheapening concrete lights, consists in making use of perforated plates, slats, bars, or gratings, as aforesaid, made from paper, boards, or material of the character set forth, alluded to, or specified in my American Patent No. 272,551, as material for illuminating-gratings, and dated the 20th day of February, 1883, as a substitute for metal ones, in combination with glasses and concrete, as aforesaid.
    A further object of my invention, as a means of cheapening concrete lights made of slats, bars, or plates of metal, wood, or wood material, as aforesaid, and formed with half-holes or partially-formed holes, as aforesaid, at the junction-edges, in combination with glasses and concrete, as aforesaid, consists in attaching the glasses to the floor plate or grating by means of screw-threads formed on the glass, and threads to match formed on the sides of the light-holes, in connection with the screw-threads, corrugations, or serrations upon the sides of the glass above the floor-plate, or in the sides of the mounts, when glasses set in mounts are employed, as a means of holding the concrete overlayer to the flat face of the floor-plate.
    A further object of my invention, as a means of cheapening concrete lights, where the glasses are formed with screw-threaded shanks, consists in combining with the screw-threads one or more projections, or a fillet made upon the glass, as a stop to bring the glass to its proper bearing and prevent it from going too far into the light-hole.
    Figure 1 represents, of full size, a portion of a floor-plate with no glasses, the purpose being to exhibit the screw-threads of the light-holes, and to show the plate made of wood or wood material, or so-called "artificial wood;" Fig. 2, the same with screw-glasses; Fig. 3, same with facing of concrete between the glasses. Fig. 4 represents one of the glasses. Fig. 5 represents one of the glasses set in a mount, the mount acting as a stop. Fig. 6 represents slats formed with half-holes. Fig. 7 represents floor-plates in widths greater than slats of bars, and is likewise designed to represent construction, (as in making roofs and roof-pavements,) or the method of joining the slats, bars, or plates to produce uniform lines of light-transmitting glasses, in combination with a continuous facing of concrete over the