US1293421A - Spacer and tie in continuous strip fro concrete construction. - Google Patents

Description

C. A. HANSON.

SPACER AND TIE IN CONTINUOUS STRIP FOR CONCRETE CONSTRUCTION.

Patented Feb. 4, 1919.

APPLICATION FILED MAY25| I918.

INL

use.

CHARLES A. HANSON, OF CHICAGO, ILLINOIS.

SPACER AND TIE IN CONTINUOUS STRIP FOR CONCRETE CONSTRUCTION.

Application filed May 25, 1918.

To all whom it may concern:

Be it known that I, Crnxnnns A. HANSON, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Spacers and Ties in Continuous Strips for Concrete Construction, of which the following is a specification.

My invention relates to the provision of a rod spacing and tying device, peculiarly applicable for use in Connection with the as sembly of reinforcing means for concrete construction.

It is now the general and approved practice to reinforce concrete construction with a series of rods, straight, twisted or otherwise formed to present a good holding surface to the inclosing concrete. The present universal practice, so far as I am aware, is to secure these rods in position for receiving the concrete by means of twisting wires about them. It is obvious that the strength of the reinforcement and the ultimate strength of the concrete construction is dependent upon the uniformity or regularity with which the spacing of these rods is carried out, and this is now recognized as the specification for such structures includes the particular spacing of the reinforcing rods. With the present method. however, of securing the rods together by twisting wires about them the resulting spacing of the rods is entirely dependent upon both the care and skill of the operative who does the erecting. With the use of my improved spacer and tie it is quite impossible for the operative to use any discretion in the matter and nowhere nearly the same degree of skill or time is necessary in assembling the reinforcement.

The principal object of my present in vention is the provision of a simple and effective means for securing the uniform spacing of reinforcing rods which will provide means for securing said rods to the spacer and will also serve to effect the positioning of the reinforcing structure within and anchoring it to the surrounding concrete, and the provision of a rod spacer and tie that may be made in a continuous strip in order that it may be cut to the desired lengths for It will be understood that the tie members of the strips may be placed divers distances apart on difl erent strips, and in the employment of my invention several Specification of Letters Patent.

Patented Feb. 1919.

Serial No. 236,493.

spools of the strips may be used each as needed. for the different spacing of the rods. A further object of my invention is the provision of arod spa ing and tying strip that is so constructed that when in use will pro vide a substantially flat structure of con sidcrable rigidity and capable of consider able rough usage without being distorted or moved out of position.

I prefer to accomplish the divers objects of my invention by the means and in the manner hereinafter more fully explained, reference being now had to the accompanying drawings which form a part of this specification, in which Figure 1 is a plan of a fragmental portion of a panel showing my invention applied to secure the spacing and positioning of the reinforcing rods of the structure.

Fig. 2 is a plan of a short section of my improved spacer and tie strip.-

Fig. 3 is an edge view thereof showing the manner of spacing and tying the reinforcing rods thereto.

Referring to the drawings, in which similar reference characters are employed to designate the same parts throughout the views, it will be seen my invention preferably comprises a strip or ribbon 5 of flat metal of suitable thickness, that has a plurality of slits 6 cut in from the opposite longitudinal edges thereof, at substantially right-angles to said edges. Coutinuations 7 of these slits extend at right-angles thereto and parallel to the longitudinal edges of the strip to provide substantially parallel, oppositely facing tongues 8 that are adapted to be bent around the reinforcing rods 9, substantially in the manner illustrated in Figs. 1 and 3 of the drawings, which illustr tions show the ends of the tongues extended beyond the plane of the strips and rods thereby securing the positioning of the reinforcing structure within and anchoring it to the surrounding concrete. In making these slits in the metal ribbon, I prefer to have the ends of the longitudinal portions 7 thereof terminate slight distances apart, as shown, so as to provide spaces 10, that afford a gage for positioning the rods 9 thereon. These spaces 10 are preferably equidistant apart in the same strip, and different strips may be provided in which the spacing is, say four, six, or twelve inches, as desired.

While I have herein disclosed certain specific instrumentalities for carrying out my invention, it is obvious that divers modifications thereof are possible Without materially departing from the principles involved. For example, the tongues may be upon one longitudinal edge of the strip, or the slits may be other than L-shaped, to suit convenience 'in manufacture. I desire it understood, therefore, that all such changes are contemplated Within the scope of my invention as expressed in the appended claims.

What I claim is 2- 1. A rod spacing and tying member comprising an elongated substantially flat strip of metal provided with a plurality of spaced tongues adjacent the margin of said strip, each tongue adapted to be bent around a rod and project beyond the plane of said rods and strip for disposing said reinforcing structure Within and anchoring it to the surrounding concrete.

2. A rod spacer and tie comprising a band having rod securing means struck up from the body of the band at desired intervals, each adapted to be bent to encircle and se cure the rod and extended beyond said strip upon the side thereof opposite said rod.

8. In a structure for reinforcing concrete construction comprising separate rods, a spacer and tie vfor securing said rods in place consisting of a strip of metal having spaced pairs of tongues displaced from the edges of said strip in staggered relation each tongue being bent around its adjacent rod for securing the rod to said strip and having its end extended beyond the plane of said rods and strip for disposing said reinforcing structure Within and anchoring it to the surrounding concrete.

Signed at Chicago, county of Cook and State of Illinois, this 28rd day of May, 1918.

CHARLES A. HANSON.

Witnesses BENJ. T. RooDHoUsE H. SLACK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.- Washington, D. G.

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