US1094841A - Reinforcement for concrete construction. - Google Patents

Description

J. 0. ELLINGER.

REINFORCEMENT FOR CONCRETE CONSTRUCTION.

APPLICATION FILED SEPT. 29, 1909.

Patented Apr. 28, 1914.

UNITED STATES EATENT OFFICE.

JULIAN o. ELLINGER, or NEW YORK, N. Y.

REINFORCEMENT FOR CONCRETE CONSTRUCTION.

To all whom it may concern:

Be it known that I, J ULTAN O. ELLINGER, a citizen of the United States, and a resident of the city, county, and State of New York, have invented certain new and useful Improvements in Reinforcements for Concrete Construction, of which the following is a specification.

This invention relates to improvements in reinforcements for beams, girders and like constructions in which the body portion is composed of plastic material such as concrete.

The objects of the invention will appear from the hereinafter description.

Several embodiments of the invention are disclosed in the accompanying drawing which is here described, and in which the same reference character indicates the same part in the several views.

Referring to the drawing: Figure 1 is a perspective view of one type of my invention. Fig 2 is a side elevation of another form ofthe invention. Fig. 3 is an end elevation. Fig. 4 is an end view of one of the straps forming the shear member of the construction shown in Fig. 2. Fig. 5 is a bottom view showing one of the straps connected to the longitudinal bar forming the tension member. Fig. 6 is a modified construction.

The part marked 10 represents a longitudinal bar forming the tension member. This bar is provided throughout its length with welding projections. Preferably, these projections consist of longitudinal ribs 11 10- rated on each side of the bar and at the upper and lower portions thereof. 7

12 represents transverse rods formed in the shape of loops with their freeends connected to the projections or ribs 11 by electric welding. These loops form the shear members of the construction. In some forms of the device these loops or shear members may be perpendicular to the iongitudinal bars, as shown to the left in Fig. 1; and in other cases they may be placed at an incline thereto, as shown to the right "in Fig. 1.

Instead of forming the transverse members out of the rods shown in Fig. 1, they may be formed of straps 13, as shown in the other figures of the drawing. The ends of these straps are provided with projections or ribs 14 which are in contact with the projections on the bar 10. These ribs Specification of Letters Patent.

Application filed September 29, 1909.

Patented Apr. 28, 1914.

Serial No. 520.068.

Of course, when the rods 12 are used, as I shown in Fig. 1, it is not necessary to provide them with ribs or projections, as the shape of the rods themselves, together with the projections 11 permit welding in the manner just described.

Instead of forming the shear members of one continuous piece, as shown in- Fig. 2, the elements forming the same may be separate rods or plates, as shown in Fig. 6; that is to say, one element '15 may be welded on one side of the longitudinal bar 10 and the other element 16 on the other side of the bar. It may be here stated that instead of the longitudinal bar being provided with only two ribs on the side, it may be provided with a greater number, and in Fig. 6 I have shown three such ribs. The shape of the ribs may be varied and in fact the welding points instead of being ribs, may be a series of projections extending from the-side faces of the bar 10, it only being necessary to provide points or projections in order to get a perfect weld between the longitudinal bar or tension members and the transverse rods or straps forming theshear members. When the cross sectional area of the Welding portion of the rods or straps is substantially of the same area as the said projections on the bar these points melt down at about the same time for the purpose of welding at that point. It is to be understood, of course, that these projections are of smaller cross section than the bar itself to permit this operation.

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

1.. In a reinforced concrete construction, a longitudinal bar having welding projections on the sides thereof, and loops formed of rigid elements with the inner sides of their free ends in contact with said projections and weldably connected to the said bar at the sides thereof by said projections.

2. In a reinforced concrete construction, a longitudinal bar forming a tension memher having welding projections on the sides thereof, and a series of loop straps forming shear members, the free ends of each strap being provided with Welding projections, the said straps at the inner sides of their free ends being weldably connected to the longitudinal bar to form a homogeneous construction 3. As a neW article of manufacture, a concrete reinforcing bar having lateral ribs or projections at opposite sides of relatively small cross-section compared to the crosssection of the body portion of the bar, and looped shear members each of approximately the same cross-section as the ribs or projections, and Welded thereto at both sides of the bar,

4:. As a new article of manufacture, a concrete reinforcing bar, having lateral ribs or projections at opposite sides, said ribs or projections being each of relatively small cross-section compared to that of the body of the bar, and looped shear members having a portion thereof of a cross-section substantially equal to the cross-section of the said ribs or projections and engaging opposite sides of the bar, and Welded to the ribs or projections.

5. In a reinforced concrete construction, a longitudinal bar having Welding projections formed thereon, and shear members consisting of loops formed of rigid elements with the inner sides of their free ends in conme est tact With said projections and Weldably connected to the said bar by said projections 6. As a new article of manufacture, a concrete reinforcing bar having projecting portions of smaller cross section than the body of the bar, and reinforcing members Welded to said projections, each of said reinforcing members consisting of a looped rod, the cross sectional areas of the projecting portion of the bar and of the reinforcing members being such that the portions to be Welded may be brought to a Welding heat in substantially the same period of time.

As a new article of manufacture, a concrete reinforcing bar having lateral ribs or projections at opposite sides, each of said ribs or projections being of a relatively small cross section compared to that of the body of the bar, and looped rigid elements with the inner sides of their free ends having a cross sectional area substantially equal to the cross section of said ribs or projections, and engaging the opposite sides of said bar, and Weldably connected thereto by said ribs or projections.

in Witness whereof I have hereunto set my hand at the city, county and State of New York, this 28th day of September, 1909.,

JULIAN O. ELLINGER.

lin presence of- ALLAN W, Foosn, lsAnnL R. Riorranns.

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