US 340796 A
Description (OCR text may contain errors)
A. H. LORENZE.
FLOORING POR BALGONIES.
No. 340,796. Patented Apr. 27, 1886.
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OF NEW YORK, N. Y.
FLOORING FOR BALCONIES.
SPECIFICATION forming part of Letters Patent No. 340.796, dated April 27, 1886.
Application filed September 10, 1885.
To all whom it may concern:
Be it known that I, ALBERT H. LOEENZE, of the city, county, and State of New York, have invented a new and useful Improvement in Flooring for Balconies; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.
My invention relates to an improvement in the construction of gratings for thc flooring of balconies and other purposes; and it has for its object to reduce the cost and increase th strength thereof.
In the accompanying drawings, Figure l is a longitudinal section through one of the longitudinal bars of the improved Aflooring or grating in line m x of Fig. 2; Fig. 2, a plan view of the flooring or grating with the cross-bars in horizontal section in line y y of Fig. l; Fig. 3, a central section through one of the cross bars on line z cof Fig. 2, and Fig. 4 a view in perspective illustrating a balcony t-ted with the flooring.
In the customary mode of constructing metallic gratings to serve as a iooring for the balconies of fire-escapes and windows, or for any purpose where iron slats or bars are fastened together, the longitudinal bars are each riveted to a series of crossbars, both sets of bars being made of wrought-iron and each riveted to the other at every point of intersection. This frequent riveting is required in order to obtain proper stability and strength in the structure and to prevent the bars from springing apart.
My invention consists in the combination of the customary form of wroughtiron longitudinal bars A A A, with cross-bars B B B, cast preferably in malleable iron, and which are formed with transverse apertures d d therein, (see Fig. 3,) through which the longitudinal lbars are passed, so as to avoid the necessity of rivets to confine the one to the other. The
end bars, C C O, are also cast, preferably, of malleable iron with recesses or sockets e e e therein, (see Figs. l and 2,) adapted to receive and confine the ends of the longitudinal bars. In constructing a ooring with these wrought- `iron bars and malleable or cast iron castings the longitudinal bars A A A, after being cut of the proper uniform length, are inserted through the openings in a suitable number of cross-bars, B B B, and at either end into the sockets in the end bars, C C. After theintervals between the cross-bars B B have been properly spaced and the positions of the bars adj usted, the whole is made fast and the frame or flooring rendered secure and solid by riveting the ends of the crossbars and end bars to the outer longitudinal bars, as shown at i it in the drawings.
The substitution of the malleable or cast iron cross-bars for those made of wroughtiron, their construction with mortises d d and sockets e e, to serve instead of rivets for conining the bars led through them, and the facility and rapidity with which the fiooring or grating is framed together and then made fast by a few outer rivets, it', enables me to furnish it at a less lcost and in quicker time than any metallic flooring of equivalent strength heretofore manufactured.
I claim as my invention- A metallic grating or flooring constructed of a series of longitudinal bars led through apertures in a series of cross-bars, and which are fitted at each end into sockets in the end bars, the whole made fast by rivets pinning the two outer longitudinal bars to the end and cross bars, substantially in the manner and for the purpose herein set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
ALBERT H. LORENZE.
J. F. AcKER, Jr., A. B. MooEE.