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290,886 · Jacobs · "Concrete Floor, Roof, &c." · Page 2 Home  > Prism Glass  > Patent Index  > Page 2

290,886: 2 of 4

area of light-opening be divided into small apertures and spread over a larger surface, as I have represented in Fig. 4, no such danger can happen.     Fig. 1 represents the perforated concrete arch closed by glasses, in the ordinary manner of making patent-light work; but Fig. 4 represents a structure where the light-holes are left open and ready to receive glass for the purpose of shutting out the weather.     My object in representing a structure of open light-holes is to explain that I do not limit the closing of these light-holes to glass blocks that plug them like a cork; but in some cases I overlay the surface with plate, sheet, or pane glass, suitably glazed, in sashes made in some cases to be opened for ventilation. In other cases I mold ribs of concrete on the face of the roof and glaze the glass between them.     In Figs. 3 and 4 I have represented the end arches only with tie-rods. They thus become abutments for the other arches and make tie-rods for them unnecessary.     To protect the tie-rods themselves against fire, I surround them with a coating of plaster-of-paris, concrete, or other fireproofing material, as represented in Figs. 1 and 2.     Fig. 5 represents an illuminating concrete arch designed to be employed with metal beams, and Fig. 6 represents a roof, floor, or construction made by combining such arches with beams, as indicated at B².     Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is--     1. A self-supporting concrete composite beam-arch, substantially as and for the purposes herein set forth and illustrated.     2. A self- supporting concrete composite beam-arch formed with openings, after the manner of an illuminating-grating, to admit light.     3. A self-supporting concrete composite beam-arch formed with openings, after the manner of an illuminating-grating, in combination

with glass to shut out the weather and give light.     4. A roof, floor, pavement, or structure made of self-supporting concrete composite beam-arches, substantially as and for the purposes herein set forth and illustrated.     5. A roof, floor, pavement, or structure made of self-supporting concrete composite beam-arches formed with openings, after the manner of an illuminating-grating, to admit light.     6. A roof, floor, pavement, or structure made of self-supporting concrete composite beam-arches formed with openings, after the manner of an illuminating-grating, in combination with glass to shut out the weather and admit light.     7. A concrete arch formed with openings, after the manner of an illuminating-grating, to admit light.     8. A concrete arch formed with openings, after the manner of an illuminating-grating, in combination with glass to shut out the weather and admit light.     9. A roof, floor, pavement, or structure made of concrete arches formed with openings, after the manner of an illuminating-grating, to admit light, in combination with supports or beams, substantially as and for the purposes herein set forth and illustrated.     10. A roof, floor, pavement, or structure made of concrete arches formed with openings, after the manner of an illuminating-grating, in combination with glass to shut out the weather and admit light, when the same are combined with supports or beams, substantially as and for the purposes herein set forth and illustrated.     In testimony whereof I affix my signature in presence of two witnesses. THADDEUS HYATT. Witnesses:     T. C. BRECHT,     GUY DE MOTTE.