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606,554 · Jacobs · "Ventilating Vault-Cover" · Page 2 Home  > Prism Glass  > Patent Index  > Page 2

606,554: 2 of 5

over-lapping of the bars E and K adds to the weather-proof character of the construction. The other supporting-bar K for each piece of glass L is provided with a groove or channel M, that extends from the hub I out to or slightly beyond the outer end of the glass to form a gutter for the reception and guidance of water. Said channel is adapted to overhang or extend sufficiently beyond the side of the subjacent opening as to prevent the passage of water into the same.     In the space between each pair of bars E and E, at the outer ends thereof, is placed an upwardly and inwardly inclining plate N, that rests on the ring D, and whose upper edge is placed in a plane well within the plane of the outer edge of the plate of glass L, used to cover the same, so that any water dripping from said plate of glass cannot possibly run or splash into the opening. Said plate N also closes the opening against the direct admission of rain or snow.     The hub I has at its top a flange i', that projects over the inner ends of the glass and bars to enable the production of water-tight joints at these points.     To rigidly support or brace the bars K and K, I employ a metal ring O, to which their outer ends are fastened. This ring is especially desirable if, as in the construction shown, the bars are formed of sheet metal, since without the ring they are supported only by their connection with the hub I, and thus with sheet metal would hardly be sufficient to withstand the shocks and strains of rough usage.     Preferably the bars and plates of glass of both the stationary and pivoted members of my cover incline from their respective centers downward and outward, so as to cause the ready passage of water over and off of them into the gutter at the bottom of the ring A.     It will be apparent that by the light open framework used to support the glasses the cover has large light-transmitting capacity both when opened and closed and when opened permits the passage of large volumes of air.     While designed primarily for use as a vault-cover of the type placed below the surface of the pavement, it is obvious that with the parts

omitted that this use requires the invention may be used elsewhere than in pavements.     Having thus described my invention, what I claim is—     1. In a ventilating and lighting cover, the combination of a frame formed of a ring and a series of radially-arranged bars that extend inward therefrom, between only some of which glasses are placed, no glasses being placed between the others, and inwardly-inclined plates being between the outer ends of bars between which are no glasses, and a pivoted frame over the other, having glasses adapted to be moved over and from the openings in the frame beneath, substantially as and for the purpose described.     2. In a ventilating and lighting cover, the combination of a stationary frame having a series of radially-arranged bars, between only some of which glasses are placed, said bars being extended above the surface of the glass, and a second similar frame, having bars extended downward in position to engage the upward extensions of the other frame-bars, substantially as and for the purpose described.     3. In a ventilating and lighting cover, the combination of a stationary frame having segment-shaped openings, alternate ones of which are glazed, and a pivoted frame having segment-shaped openings, alternate ones of which are glazed, and having along an edge of each glass a channel or gutter, substantially as and for the purpose described.     4. In a ventilating and lighting cover, the combination of a ring having an inwardly-projecting flange and a curb rising from the latter, a stationary frame consisting of a ring resting on said curb, and having a downwardly-extending flange surrounding the curb, and provided with glazed and unglazed openings, and a pivoted frame having glazed and unglazed openings, substantially as and for the purpose described.     In testimony that I claim the foregoing I have hereunto set my hand this 29th day of November, 1897. JACOB JACOBS. Witnesses:     ALEX SMEDES,     WM. B. JACOBS.