US505054A

US505054A - Joseph melan

Info

Publication number: US505054A
Authority: US
Publication date: 1893-09-12
Anticipated expiration: 1910-09-12

Description

(No Model.) 4

w J. MBLAN.

VAULT FOR OEILINGS, BRIDGES, &c.

Patented Sept. 12, 1893.

UNITED STATES PATENT prion.

JOSEPH MELAN, OF BRUNN, AUSTRIA-HUNGARY.

VAULT FOR CEILINGS, BRIDGES, 81.0.

SPECIFICATION forming part of Letters Patent No. 505,054, dated September 12, 1893.

Application filed May 17, 1893. Serial No. 174,596. (No model.) Patented in Austria-Hungary October 23, 1892, No. 60,937

and No. 44,605.

To whom it may concern.-

Be it known that I, JOSEPH MELAN, professor at the Imperial and Royal Technical High School at Briinn, a subject of the Emperor of Austria-Hungary, residing at Briinn, in the Province of Moravia, in theEmpire of Austria- Hungary,haveinvented certain newand useful Improvements in Vaults for Ceilings, Bridges,

or Bridge-Roads, (for which Letters Patent of Austria-Hungary have been granted, No. 60,937 and No. 44,605, and dated October 23, 1892;) and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilied in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to a novel construction in fire-proof arches forbridges, viaducts, the ceiling of vaults and the like, the objects being to provide an arch that possesses equal or greater strength than the ones in general use but which will be considerably lighter; to provide an arch having sufficient resistance to support an unequally distributed load without injury, and to provide an arch that can be easily constructed and that will be inexpensive.

The invention consists in the features of construction and combinations of parts hereinafter fully described and specifically claimed.

In the accompanying drawings,--Figure 1 is a transverse section of an arch constructed in accordance with myinvention. Fig. 2 is a longitudinal section of the same. Figs. 3 and 4 are fragmentary transverse sections of the ends of the arched ribs and the girders or beams.

Referring now to said drawingsB indicates the abutments or longitudinal girders or beams between which the arches are made, conveniently consisting of I-iron, and A the ribs of the arch curved to conform to the intrados of the arch and with it stands flush. These ribs A are made of rolled I or T iron, riveted iron plates, or the like, that is to say these ribs are made of metallic beams that are stiff transversely. For long spans I have found riveted iron plates most advantageous,

but for shorter spans I or T iron can be employed. The ends of the curved ribs are beveled as at a in Fig. 3 to fit between the upright portion orweb b of the longitudinal beams or girders B, or they can be beveled on two sides as at a and a in Fig.4 to fit against the web b and flange b of the longitudinal beams or girders B. The said ribs are located at intervals between the beams or girders and it will be noted that if the ends thereof are fitted nicely a stilt and rigid connection will be made between the ribs and beams or girders,but to insure such rigid connection I prefer to employ wedge plates 0 that are forced in between the beveled ends aof the ribs and the beams or girders, and which serve to hold the ribs rigidly in place in an obvious manner. It is manifest that I can bolt or rivet the ribs and girders if found convenient. After this frame work isconstructed the centering is then constructed below the ribs A and a filling D of rammed concrete or the like is built that covers the sides of the ribs and ex tends between the same. The upwardly projecting portions of beams or girdersB are then covered with a coating of rammed concrete, and then a layer 61 of rubble or other light filling material is placed upon the concrete filling, and upon this layer or filling all the pavement or flooring can be built.

It will be seen from the foregoing description that the arch or vault can be easily and quickly built with the minimum of labor, as I obviate bolting or riveting, which is a decided improvement as it reduced the cost of construction. And then, further, it makes a lighter vault or arch capable of withstanding great strains. Moreover, the strains to which the concrete vault is subjected are reduced, and notably when the load is unequally distributed upon two adjoining panels, for in this case the strain is borne for the most part by the ribs, thereby increasing the bearing strength of the vault.

I claim as my invention 1. A vault or arch consisting of abutments, beams or girders, arched ribs rigidly connected with said abutments, beams or girders, and a filling of concrete or the like between said ribs, substantially as described.

2. Avault or arch consisting of abutments,

10 wedge plates between the ends of said ribs and said beams 01' girders, and a filling of concrete or the like between said ribs, substantially as described.

In testimony whereof Iaffix znysign ature in presence of two witnesses.

JOSEPH MELAN.

Witnesses:

ALFRED MUSILE, KRO ATZ.