US1751923A - Structural material - Google Patents

Description

March 25, 1930. T. H. KANE STRUCTURAL MATERIAL Filed Dec. 21, 1925 BY am ATTORN EY Patented Mar. 25, 1930 UNITED STATES;

PATENT OFFICE THOMAS H. KANE, OF YOUNGSTOWN, OHIO, ASSIGNOR T TRUSCON STEEL COMPAN Y, OF YOUNGSTOWN, OHIO, A CORPORATION OF MICHIGAN STRUCTURAL MATERIAL Application filed December 21, 1925. Serial No. 76,665.

The present invention relates to structural materials for buildings and particularly to materials adapted for roofing and for flooring intended to support light loads.

v .Among the objects of the invention is a material for the purposes specified which is easily and economically made and used and which contains little or no excess material.

Another object is a material for the purpose indicated which shall be very light in weight but sufliciently strong and which may be produced from light weight and gauge materials.

With these and other objects in view as 5 will more clearly hereinafter appear, the invention consists broadly in a rolled metal sheet of small thickness having secured to one side thereof stiffening ribs formed of similar material by means of which the sheets are adapted to be supported upon suitable joists or the like. ,The sheets preferably have secured to the other side a moderately thick layer of fiber-board or other suitable sound and heat insulating material, and this may be further" covered with waterproofing material, if desired, although both of these la ers may be omitted.

eference should be made to the accompanying drawing, in which Fig. 1 shows a section of one form of the material across the ribs;

Figs. 2 to 6 show similar sections of as many modifications thereof; and

Fig. 7 shows a fragmentary plan View of Fig. 6 from below.

The present invention may be regarded as an improvement over that shown in application Serial Number 39,227, filed June 24, 1925, for building construction by Julius Kahn.

Referring to the drawings, (Figs. 1 and 2), 10 indicates a continuous thin flat rolled sheet of metal having secured to one side thereof as by weldingthe ribs 11 and 12, these latter being formed of similar sheet metal folded back upon itself to form a rib of I-section as at 11 or T-section as at 12.

Upon the other side of the sheet 10 may be secured, as by cementing, a comparatively thick sheet or'layer 13 of a heat and sound insulating material such as fiber-board, which acts as a compression member when the material is subjected to loading, the sheet metal 10 and ribs being placed under tension.

Fig. 3 shows a somewhat different form of that shown in Fig. 2. In this form of material, the formed sheet metal rib 12 is sesecured as in Figs. 3 and I, a different form of rib being shown. In this form of rib, the

,sheet metal 20 is formed into T-section but the edge of the web portion 21 encloses a solid rib 22.

Fig. 6 shows a modification of the method of securing the rib to the sheet. In this figure the sheet 10 is provided with tongues 30 punched out of the body thereof and spaced apart the width of the double flange 31 of the formed rib. These tongues 30 are then pressed down over the edges of thedouble flange to secure the rib in place.

Having nowv described the invention and the preferred forms of embodiment thereof,-

it is to be understood that the said invention is not to be limited to the specific details here in set forth but only by the scope of the claims which follow.

Claims 1. A roofing or flooring material comprising a continuous sheet of metal, a plurality of stiflening ribs therefor formed of sheet metal folded to I or T shape, and means for securing adouble flange of said ribs to one side of said sheet, said means comprising folds formed I of the metal of said sheet crimped over the edges of said double flange.

2. Aroofing or floorin material comprising a continuous sheet 0% metal, a plurality of stiffening ribs therefor formed of sheet metal folded to I or T shape, means for securing a double flange of said ribs to one side of said sheet, said means comprising folds formed of the metal of said sheet crimped over the edges of said double flange,

and. a heat insulating layer secured to the other side of said sheet.

THOMAS KANE.

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