US1013537A - Fireproof floor and ceiling construction. - Google Patents

Description

- J. G. EIPLER. PIREPROOF FLOOR AND CEILING CONSTRUCTION.

APPLICATION FILED JUNE 9, 1911.

Patented J an. 2, 1912.

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COLUMBIA PLANOURAPH C0,,WASHINGTON, D c.

UNITED STATES PATENT QFFICE.

JOHAN G. EIFLER, OF NEW YORK, N. Y., ASSIGNOR 0F ONE-THIRD TO ERNST EBBINGHAUS, OF NEW YORK, N. Y.

FIREPROOF FLOOR AND CEILING CONSTRUCTION.

To all whom it may concern:

Be it known that I, JoHAN G. EIFLER, a citizen of the United States, and residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Fireproof Floor and Ceiling Constructions, of which the following is a specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to fireproof floor and ceiling constructions and it consists in an improved form" of'arch beam, a number of which are placed, in practice, between two I-beams in forming the floor and ceiling construction of a fireproof building.

The invention is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are desig nated by suitable reference characters in each of the views, and in which Figure 1 is a sectional View of a part of a floor and ceiling construction showing two I-beams in cross section and the method of placing my improved arch beams in position and giving also a side view of one of said beams and a longitudinal central sectional view of the end portion of two other beams, and: Fig. 2 a partial transverse section on the line 22 of Fig. 1 and showing a number of arch beams in transverse section and the ends of other beams in elevation and showing the method of using concrete in connection with or on said beams.

In Fig. l of the accompanying drawing I have shown at a two I-beams and at b one of my improved arch beams. The arch beams 22 as shown in Figs. 1 and 2 comprise a central longitudinal body portion 6 and a base portion 72 and the body portion 5 is in the form of an inverted V and the sides thereof are provided with longitudinal arch-shaped portions 72* the transverse thickness of which including the central body portion is the same as that of the transverse base portion 6 The base portion 6 is provided on one side thereof with a longitudinal rib and on the opposite side with a corresponding longitudinal groove 1)? and the arch-shaped side portions b are provided on one side with a longitudinal rib b and on the opposite side with a corresponding longitudinal groove 6 and by Specification of Letters Patent.

Application filed June 9, 1911.

Patented Jan. 2, 1912. Serial No. 632,113.

means of this construction, when a number of said arch beams are placed together, as shown in Fig. 2, they are interlocked; the ribs and b fitting in the grooves 72 and Z1 The inclined sidesof the longitudinal body portion 6 are also provided near the top thereof with longitudinal grooves and the ends of the base portion 6 are provided with transverse grooves or recesses 6 into which the bottom flanges a of the I-beams a fit when said arch beams are placed in position as clearly shown in Fig. 1. The arch beams b are also preferably provided with central longitudinal recesses or passages Z2 whereby the amount of material used therein and the weight thereof are decreased, but these longitudinal recesses or passages may be omitted if desired.

The vertical dimensions of the arch beams b are less than the vertical dimensions of the I-beams a and when said arch beams are placed in position they are covered with concrete as shown at c, and this concrete extends above the I-beams and is preferably provided with a smooth finish c which forms the floor of one compartment while the under surface of the arch beams form the ceiling of another compartment and this surface may be covered if desired, with any suitable material.

The concrete 0' as shown in Fig. 2 fills the spaces between the top portions of the arch beams and fills the grooves 6 and this also strengthens said arch beams.

The central portion of Fig. 1 shows one of the beams in side elevation while the end portions of said figure show the end portions of two other arch beams in central longitudinal vertical section.

By means of my improved arch beams I am able to provide a floor and ceiling construction of the class specified at a comparatively reasonable cost, possessing all the requisite strength; and in practice, my improved arch beams are made of concrete and may be reinforced if desired in the usual or in any desired manner.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is

An arch beam for use in concrete floor and ceiling constructions, comprising a base portion and a top portion, the side parts of the base portion being arch-shaped in form and recesses adapted to receive the base flanges of Ibeams.

In testimony that I claim the foregoing as my invention I have signed my name in presence of the subscribing witnesses this 15 8th day of June, 1911.

J OI-IAN Gr. EIFLER.

of the same thickness throughout and the top portion being in the form of a central raised longitudinal web which extends above the arch-shaped side portions and the top of which is parallel with the bottom surface of the beam, the opposite sides of the archshaped side portions being also provided one with longitudinal grooves and the other \Vitnesses: with corresponding longitudinal ribs, and C. E. MULREANY, the ends of the beam being provided wit-h F. G. A'r LEE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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