US1507755A - Reenforcing bar - Google Patents

Description

Sept. 9, 1924. 1,507,755

G. C. PINGER ET AL HEENFORCING BAR File 8 27. 1920 ZShqotg-Shutl Sept. 9, 1924.

2 Sheets-Shut 2 G. c. FINGER ET AL REENFORCING BAR Filed Dec. 27. 1920 PI W7 Patented Sept. 9, 1924.

UNITED STATES Gam FINGER, or BRONXVILIQE, ND? JAMES F1, cunts-Y} oa omms,

YORK, IASSIGNORS ro-oononnrn STEEL COMPANY, or roan, n. Y., A. coaronn'rron or DELAWARE- I REnnrfoRcINe BAR.

5 Application filed December 27, 1920; seriar'no. 423,116.

To all whom it may concem." l v r Be it known that we, GEORGE C. 'PINGER and J AMES F. CUnLEY, citizens ofthe United States, residing, respectively, in Bronxville, county of VVestchester,'and State of New York, and in Yonkers, in the county of Westchester, in said State, have invented an Improvement in Reenforcing Bars, of which the following is a specification.

Our present invention relates to reenforcing metal devices, for use in concrete structures, andhas for its object to provide a simple and cheap form of reenforcing bar which can be readily collapsed so that it may be transported, and which can be easily and cheaply made; which will at the same time act as an efficient reinforce and may be employedeither for beams or for columns, or under proper conditions for arches and other concrete structures. 1

The accompanying drawings show an embodiment of our invention. Therein Figure 1 is aside elevation of a .colum structure. 6

Figure 2 is an enlarged detail ofpart'of what is shown in Figure 1, also inside elevation.

Figure 3 is a side elevation tion, at 90 to Figure 2.

Figure 4 is a view similar to Figure 1 of a. modified. form.

Figures 5 and 6 are details of the modified form. I

A is an angle or spacer, which in the partly in secpresent instance is an L-shaped iron, having webs, as A Slots or cuts A are made in one of the edges of'the angle-iron, and key.- hole slots A are also made at proper points in the same angle. Disposed in the slots A is a helical coil B, preferably of'drawn wire of large diameter, such as is commonly used in this art. Threaded through the key-hole slots A is another wire C which passes first upon one side and then on the other of the web A and is disposed between the edge of the spacing bar and the coils B. In Figure 1 the end of this wire is shown as passed through a round perforation in the web. In general, 'it need not be fastened securely, as

friction holds it in place; but any form of fastening for the end of the .wire may be employed. 1

In Figure 1, the angle-irons, of which there may be one only or more, according to the arrangement desired, are shown as of light stuff 'andlaot as "spacers for the coils ofthe'heliX1B'.-j It" will be obviousthat if there is one of these, ortwo disposedupo'n opposite sides ofth'e helix, the coils may be turned down 'so thatthewhole structure will be'substantially flat and may be secured in thisposition and shipped with convenience, additional spacers or angles being placed'in position when the bar is put into use, if desired. Also it is not necessary to'use angles or Ts, as a single strip of flat platemay be employed instead. These .variations'it is unnecessary to illustrate because they all represent well-known commercial shapes commonly employed in building reinforced concrete structures.

In Figures l, 5 and 6, we show a modified 3 form which We prefer. In this the parts A,

B andC areas before; butv the slot A shown best in Figure 6, which is on a larger. scale, has recesses A upon each side thereof between the main wire B and the edge of the angle in which'the retaining wire C is disposed. While this wire is held in place very well by the slots A, additional security may be given to it by distorting the edge of thespacer, as shown best in Figure 5, which is an end elevation of the parts shown in Figure 6. The edge A is shown as twisted first in one direction and then in the other adja-.

cent to the slots and "the wire is woven through these slots, first on one side of the I spacer and then upon the other.

arrangement, there is less liability to displacement of the wire and coil when the con-' crete is rammed into place.

The constructionis very rapidly assem: bled; indeed, more-rapidly thanany with which 'we are acquainted, as no machine work except cutting the slots is required, and 9 the wire C may be passed by-hand. through the slots designed for it, and secured-at the ends by the blow of a hammer, reducing the labor cost of the whole structure.

Weclaim as our invention:

1. In a reinforcement for concrete structures, a spacer presenting an'outwardly (ll-x rected flange having slots cut in its edge, a coil disposed in the-slots, and a retaining wire extending throughthe' slots entirely in front of the'turns of the coil to secure it in place in the slots and extending, along the flange alternately first on one side and then onthe other side.

2. Asa new article of manufacture, a 3

By this I and recesses in the sides of some of the slots in Which the Wire is retained.

3. As a new article of manufacture, a metal reinforcement for concrete con ipris-e ing a coil, one or more spacers having slots in ,their edgesin which .theturns of the coil are disposed, a Wirefor holding the turns of. the coilin the slots and recesses in the slotsin which the Wire is-retained; the. edges of the spacers being distorted between the slots to.-assist-in. securing; the Wire in posi* tion.

4. As a new article of ,manufacture, a metal reinforcement for concrete comprising a coil, one or morespacers having sl'ots in their edgesin which theturnsofthe coil are, disposed, a Wire forholding the turns of the coil in the slots, the spacer having p0r-' 4. tions distorted outlof its plane and engaging the Wire to retain it in operative position.

In testimony whereof, We have signed our names to this specification this 21st day-,of

December, 1920.

GEORGE 0.; RINGER; JAMESF; CURLEY

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