US1409645A - Spacer for reenforcements - Google Patents

Description

H. J. BAKER; SPACER FOR REENFORCEMENTS. APPLICAHON FILED Aue a,'192o.

Patented Mar. 14, 1922.

nuen' i. BAKER, or rnnmnAroLrs, INDIANA.

SPACER FOR REENFORCEMENTS.

Specification of Letters Patent.

Patented Mar. 14, 1922.

Application filed August 6, 1920. Serial No. 401,680.

To all whom it may concern.

Be it known that I, HUGH J. BAKER, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Spacer for Reenforcements. of which the following is a specification.

It is the object of my invention to provide a spacer for the spiral reenforcing of concrete columns, for spacing apart the successive turns of such reenforcement, which spacer will be simple and inexpensive to construct and apply and will effectively hold the turns of the reenforcing in place.

The accompanying drawing illustrates my invention: Fig. l is a fragmentary perspective view of a. spiral reenforcing equipped with my improved spacers; Fig. 2 is a fragmentaryelevation of. one of the spacers, showing in the upper notch how it grips reenforcing of large size, and with the lower notch open to receive areenforcing bar; and Figs. .3 and 4c are views similar to Fig. 2, showing how medium and small reenforcing bars are gripped.

The splral reenforcing bar 10, which in itself is well known, is of any suitable size and shape, usually round in cross-section, and the successive turns thereof are spaced apart by a plurality of my improved spacers 11. These spacers may be flat bars as shown in Fig. 1, or any other structural metal formation which includes a flat bar having a free edge, such as the angle-iron construction shown in Fig. 2, and are set edgewise with respect to the reenforcing. The fiat bar which constitutes or forms part of such spacer has punched through it a series of openings 12, each narrower at one end than at the other and of greater length than width, with the length of the opening exerably the tongue 13 is bent out of the plane of the bar 11 in the same stamping operation, though it may be left in such plane for subsequent bending out, by a hammer blow or by a special bending tool, if that is preferred. After the spacer is formed with the openings 12, and the tongues 14 opened, the spacer may be associated with the spiral re enforcing, by being placed vertically on the inside thereof in edgewise relation thereto and having successive turns of the spiral reenforcing placed in the several openings 12. hen the turns of the reenforcing 10 are put in the openings, the tongues ll may be bent in and down, by a special bending tool or by one or more hammer blows, over the reenforcing passing through the associated opening 12. When thus bent into clamping position, the tongue 14 grips the reenforcing '10, and does so-for a wide range of sizes of reenforcing, because each opening is narrower at one end than at the other to accommodate such different sizes of reenforcing at different points of its length.

This construction enables the same spacers to be used for a wide range of sizes of reenforcing; so that it is necessary to provide but one size of spacer throughout such range. The tongues 14 are easily bent by hammering, and when in place firmly grip the reenforcing, so that the spiral reenforcing may readily be built in place as needed and held in place firmly until the concrete is poured.

I claim as my invention:

1. A spacer for spiral reenforcing, including a flat metal bar havin openings formed through it, said openings ing spaced from the edge of the bar and tapering lengthwise of the bar, and the metal between each opening and the edge being cut through at the wide end to form a tongue which may be bent outward to allow a reenforcing bar to be placed in such opening and then bent to grip such bar.

2. In combination with a spiral reenforcin a spacer including a flat bar set edgepa wise with respect to the reenforcing and having openings through it of greater length than width and spaced from the edge, in which openings the turns of the reenforcing may be placed, the metal between each opening and the edge being cut through to form to accommodate different sizes of reenforca tongue which lies between the opening and ing at different points of their length. the bar edge and which may be bent out to In witness whereof, I have hereunto set 10 give access to the openings and bent to grip my hand atIndiana'polis; Indiana, this 3rd 5 the reenforcing in the openings, said openday of August, A. D. one thousand nine hunings bein narrower at their ends toward the dred and twenty. base of t e tongue than at their other ends HUGH VJ. BAKER. V

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