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288,572 · Hyatt · "Vault-Covering or Illuminating-Grating and Surface Made Therefrom" · Page 3 Home  > Prism Glass  > Patent Index  > Page 3

288,572: 3 of 8

method illustrated on Sheet 4, Fig. 12, I construct these roofs of perforated plates or tiles in size similar to those employed for making illuminating area-coverings, but of not half the weight-- in fact, making them as light as they can be cast; but the light-holes, instead of being made to form break-joint ranges in lines parallel to each other, are formed in clusters to suit the ornamental shape of the facing designed to be put over the metal backing. In constructing the work, the perforated metal plates, like the scalloped-edge bar-gratings, are laid edge to edge, so that the half light-hole in the edge of one plate meets and completes the half-hole in the edge of the other. In this way the harmony of the cluster-lights design upon the face of the roof is kept up. The joint-glasses also serve as closures to the seam between two abutting tiles, as in the bar-grating construction, with the difference that where a plastic facing of hydraulic cement or colored concrete is employed for the facing, the combination of glass and cement that makes water-proof the seam is the combination of joint-glasses and cement that makes good the cluster-lights design over the face of the work as a whole.     In constructing roofs of large plates, as represented by Fig. 12, when I employ natural slates as the facing, the plates are cast flat, with no curved fillets upon them, and when I lay on the facing in a plastic state by the use of molds, I make the plates flat and with no curved fillets; but when I employ plastic material without molds, I then cast the plates with curved fillets, as represented by Fig. 12, the glasses being first fixed in position, and the cement then laid on in the manner of making ceilings and other work of plastic material by the skill and art of clever workmen.     The sixth and last feature of novelty-- a roof construction to prevent the dripping of condensed moisture-- I construct of cast-iron perforated and guttered plates, the borders of the plates being scalloped, as in the case of the ornamental slate plates and half-hole bar-gratings, so that when any number of them are placed edge to abutting edge, the guttered surface will be continuous over the whole face of the drainage-surface, without break or interruption, and at the same time the light-holes over the whole surface will present a uniformly-distributed appearance, without break or interruption.     Having thus fully described and illustrated my invention, what I claim, and desire to secure by Letters Patent, is--     1. An illuminating-grating constructed in the form of a web-and-flange beam or bar.     2. A web-and-flange-bar grating made with scalloped edges or open-side light-holes.     3. Web-and-flange panel gratings or tiles made from web-and-flange-bar gratings.     4. Web-and-flange panel gratings or tiles made from web-and-flange-bar gratings formed with scalloped edges or open-side light-holes.

5. Panel gratings or tiles made with scalloped edges or open-side light-holes.     6. Illuminating surfaces, roofs, and pavements made of web-and-flange-bar gratings combined with glasses.     7. Illuminating surfaces, roofs, and pavements made of web-and-flange-bar gratings formed with scalloped edges or open-side light-holes combined with glasses.     8. Illuminating surfaces, roofs, and pavements made of web-and-flange panel gratings or tiles formed of web-and-flange-bar gratings combined with glasses.     9. Illuminating surfaces, roofs, and pavements made of web-and-flange panel gratings or tiles formed of web-and-flange-bar gratings made with scalloped edges or open-side light-holes combined with glasses.     10. Illuminating surfaces, roofs, and pavements made of panel gratings or tiles formed with scalloped edges or open-side light-holes combined with glasses.     11. In illuminating surfaces, roofs, and pavements made of abutting, gratings formed with scalloped edges or open-side light-holes, a water-tight joint, seam, or closure composed of joint-glasses and joint-cement.     12. In illuminating surfaces, roofs, and pavements formed of abutting perforated plates or gratings, a water-tight joint, seam, or closure composed of joint glasses and cement.     13. In illuminating surfaces, roofs, and pavements formed of abutting perforated metal plates or gratings, a water-tight joint, seam, or closure composed of joint-glasses and a fire and water proofing face material or overlayer.     14. Ornamental illuminating-roofs made in imitation of ornamental slate set with glasses, the perforated metal plates being formed with scalloped edges or open-side light-holes, and the light-holes in the plates being arranged in groups or clusters to work in harmony with the external design appearance of the weather-face of the roof, in combination with joint-glasses combined with an ornamental fire and water proofing face material or overlayer.     15. Illuminating-roofs to prevent the dripping of condensed moisture, formed of an underlayer or roof composed of perforated metal plates made with a continuous water course or courses, in combination with an overlayer or weather-surface made of glass, and formed with dripping-edges on its under face, so placed over the water-courses as to drip the condensed moisture of the glass into them.     In testimony whereof I affix my signature in presence of two witnesses. THADDEUS HYATT. Witnesses:     T. C. BRECHT,     ALEX. SIMON.