US2065899A - Building reenforcement - Google Patents

Description

Dec. 29, 1936. E. G. LAMEL 2,065,899

BUILDING REENFORCEMENT 7 Filed Dec. 15, 1953 FIE- l.

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Patented Dec. 29, 1936 UNITED STATES PAT T OFFICE 5 Claims.

This invention relates to devices used in building structures, and more particularly for reenforcements in plaster or associated with plaster.

One of the objects of this invention is to puncture the reenforcement so as to form burrs of approximately even depth to facilitate an even spreading of plaster.

Another object is to provide a reenforcement that will lend itself to bending in corners and still have a desired stiffness.

Another object is to provide a reenforcement designed with engagements along the edges for interengaging adjoining reenforcements.

It is still another object of this invention to provide a. reenforcement sheet, which has sufficient rigidity and mechanical strength to hold its shape during and after construction with a minimum of additional supporting structure.

It is still another object of this invention to provide a reeinforcement sheet, which can withstand applied loads with a minimum of deformation.

Other objects will appear from the following description and appended claims as well as from the accompanying drawing, in which- Fig. 1 is a fragmentary front elevation of reenforcements designed according to this invention.

Fig. 2 is a cross section of one of the burred portions on line 2-2 of Fig. 1.

Fig. 3 is a cross section of a slightly modified form of burred portion.

Fig. 4 is a cross section through the interengagement between adjoining reinforcements.

From the illustration in Fig. 1 it should be clear that the burrs are intended to be as close as possible in order to give a desired stiffness to the reenforcement or lath. However, the spacing is also intended to be so that the reenforcement may be bent according to curves at corners of adjoining walls, nevertheless to be rigid enough to retain its form while plaster is applied to the lath or reenforcement.

The individual burrs of, either, the type illustrated in Fig. 2, or the type illustrated in Fig. 3, are readily made of even or equal depth or height, so as to facilitate an even application of mortar or plaster.

In the form illustrated in Fig. 2, as the reenforcement 5 is punched at B, the metal is forced outwardly and crimped with the edge I folded upon the main body of the reenforcement. A reenforcement sheet is thus formed, in which the walls forming the tubular apertures have flared edges, which form a raised surface of substantially uniform height.

A slightly different procedure is followed in the form illustrated in Fig. 3, the reenforcement 5 being depressed at B, but the edge 9 being crimped inwardly instead of outwardly. In both of the forms illustrated by Figures 2 and 3, the edges 7 and 9 respectively provide a large surface for the adhesion and locking of the plastic material during application. These edges also serve to bind the applied material to the reenforcernent sheet during the life of the structure. Thus, even though the material be badly cracked, as during an earthquake, it will not break loose from the reenforcement in large masses; but will cling to the edges.

Reenforcements of this type are generally furnished to the trade in certain sizes as to length and width.

Commonly, however, there remains a space between adjoining reenforcements, to be covered by plaster.

In the present case, each individual reenforcement is provided with engaging edges on all sides whereby adjoining reenforcements can be firmly interengaged, in Fig. 1 such engaging edges being indicated at Hi, while the cross sectional view in Fig. 4 shows a rider H engaged over two adjoining engaging edges.

With this improvement, a cracking between reenforcements or so -called metal-lath sections is very much reduced, so that plaster in general in walls as well as in corners will retain its original finish much better.

Provided with a suitable thickness and strength of plastering material, a structure will stand up even regardless of the condition of other parts of a structure, such as studdings and beams.

While, with the evenly shaped burrs, individual layers of plastering material may be applied rather evenly by even an unskilled person, the rider it between each pair of adjoining pieces of the several lath-sections in a wall serves to form a guide for the plasterer in the finished job, and it must be understood that such riders can be made according to the requirements of contractors as to different thicknesses of plastering or concrete finish over a skeleton structure.

Having thus claim:

1. A structure reenforcement sheet having a plurality of tubular members projecting therefrom, the walls of said tubular members having described my invention, I

fiared edges for engaging the reenforced material, and the bases of said tubular members having a flared portion joining the main body of the sheet.

2. A structure reenforcement sheet having a plurality of tubular members projecting in one direction therefrom, the walls of said tubular members having flared edges forming a raised surface of substantially uniform height, and the other side of said sheet having a substantially smooth surface.

3. In a structure reenforcement, a sheet having a plurality of tubular members projecting therefrom, the walls of said tubular members providing a raised surface for engaging the reenforced material, the edges of said sheet being folded to form an engaging means, and a con necting member slidingly engaging over Said engaging means for connecting adjoining sheets.

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, EDWARD G. LAMEL.

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