US1144093A - Bar tie and support. - Google Patents

Description

H. E. BANDTEL. BAR TIE AND SUPPORT. APPLICATION FILED APR. 22. 1914.

Patented June 22, 1915.

WI 77V 6152-15.

J r w t HERBERT E. BANDTEL, F MILWAUKEE, WISCONSIN, ASSIGNOR OF ONE-HALF TO ROBERT H. BECKER, 0F MILWAUKEE, WISCONSIN.

BAR TIE AND SUPPORT.

Specification of Letters Patent.

Patented June 22, 1915.

To all whom it may concern:

Be it known that I, HERBERT E. BANDTEL,

. a citizen of the United States, and resident cross rods, or the bending of sheet metal thereof.

clips in order to fasten the cross rods. together.

Another object in view is the desirability of utilizing such a spring metal clip for holdihg'the reinforcing rods above the floor of the form in which the concrete is to be poured, while at "the same time entirely embedding the clips in thelconcrete by arching their bases to permit the concrete filling in therebetween. i

A still further object is togive to such a bar tying and supporting clip a rounded bearing surface which will prevent its being forced by the weight "of the metal reinforcement into the false Work so as to project from the surface of the work when the false work is removed.

With the above and other objects in view the invention consists in the bar tie and support as herein claimed and all equivalents.

Referring to the accompanying drawings in which like characters of reference "indicate the same parts in the different views: Figure 1 is a perspective view of a bar tie and support constructed in accordance with this invention, the crossed reinforcing rodsbeing shown in dotted lines; Fig. 2 is an end view thereof with the reinforcing rods in full lines; and, Fig. 3 isa side view In these drawings 10 indicates the arched base of the sheet metal spring clip forming the bar tie and support of. this" invention, the arched base having rounded edges 11 on which it bears von the floor of the-mold not shown. The single strip of sheet metal constituting the clip continues at each side of the arched base 10 upwardly and inwardly to form converging cheek portions 12 which are split centrally from the top so as to be divided into pairs of spring fingers, the spring fingers of each pair converging with the spring fingers of the other pair. At their upper ends the spring fingers 12 are turned outwardly to produce a fiaring throatway between them, and the resiliency of the spring fingers permits them to yield to the admission of reinforcing rods 13 when pressed between them after having placed reinforcing rods 14 within the slots which divide the side cheeks of the clip into the spring fingers. The slots do not extend to the rounded edges 11 of the base, but terminate at a distance above the rounded bearing surfaces of the base greater than the distance of the arched portion of the base above said bearing surfaces, so that the reinforcing bar 14 rests on the upstanding edges of the side cheeks within the slots thereof and is spaced above the floor of the mold a suflicient distance to permit the concrete to flow beneath it to give the proper fireproof protection and to embed the sheet metal clip without leaving any portion thereof protruding from the finished work.

The converging spring fingers serve to hold the reinforcing shrinkage rods 13 firmly against the larger tension bars 14 when they are forced into place. The assembling of the reinforcing rods with the use of the spring clips of this invention is a very simple matter, merely requiring the rods to be placed in theirproper positions in the clips where the clips will hold them without the necessity for a bending of parts, but merely relying upon the sprlng action of the clip to yield to the forcing of the parts into their proper place and to retain them in position when-so placed.

The slots .in the side cheeks of the clip have square ends so that the reinforcement bars 14, which are square in cross section, may fit therein, and the cross rod 13 is also shown as square in cross section, but it is obvious that this. shape of the parts may be departed from within the scope of the invention.

- WhatI claim as new and desire to secure by Letters Patent is: v

1. A bar tie and support for crossed re.-

inforcing rods, comprising a strip of'sheet metal bent to form an arched base with rounded edges and continuing upwardly from the bearing edges to form converging side checks, said side checks being slotted from their upper edge downwardly to divide them into pairs of spring fingers, the slots between the fingers being adapted to receive one of the reinforcing rods and the pairs of spring fingers being adapted to receive another reinforcing rod of greater, thickness than the distance between the spring fingers so that said rod is held thereby with spring pressure, the upper end of the spring fingers being turned outwardly to facilitate the passing of the last mentioned reinforcing rod therebetween.

2. A bar tie and support for crossed reinforcing rods, comprising a single strip of sheet metal bent to the shape of the letter W with an arched base having rounded hearing edges with converging side cheeks extending upwardly therefrom, said side cheeks being slotted from their upper edges downwardly to a point above the bearing surfaces higher than the arched portion of the base, the 'slotsbeing square at their ends and adapted to receive a square reinforcing bar passing through the slots of both cheek members, said slots dividing the cheek members into pairs of spring fingers converging and then diverging to produce contracted throatways between them to receive another reinforcing rod of greater thickness than the distance between the contracted portion of the spring fingers'and to retain said rod in place by their spring pressure therein.

In testimony whereof, I afiix my signature, in presence of two witnesses. 4

HERBERT E. BANDTEL. Witnesses:

KATHERINE HoL'r,

R. S. C. CALDWELL.

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