US1691074A - Reenforcing means for concrete-beam structures - Google Patents

Description

Nov. 13, 192:; 1,691,074

H. H. LAMPERT REENFQRCING MEANS FOR CONCRETE BEAM STRUCTURES Filed March 5, 1927 Patented Nov. 13, 1928.

UNITED STATES PATENT; OFFICE.

HENRY :H. LAMPERT, 0E CHICAGO, ILLINOIS.

BEENIORCING MEANS FOR CONCRETE-BEAM STRUCTURES.

Application filed March 5, 1927. Serial No. 173,106.

This invention relates to reenforcing systems for concrete constructionwork, and par \ticularly to reenforcing systems adapted for use in connection the like. v

The main objects of this invention are to provide an improved form of reenforcing rod for use in systems of this kind; to provideimproved means for spacing the reenforcing rods from the structural element to permit them to be embedded in the soflit; and to provide improved fastening means for holding the reenforcing rods in substantially parallel spaced relation to each other and tor securing them to the structural element.

Illustrative embodiments of this invention accompanying drawings,

same, the dotted outline showing one ofthe' fingers in its upright position prior to bent over the flange of the beam.

Fig. 3 is a perspective of the reenforcing means. f

Reenforcing systems embodying this invenbeing tion may be used in connection with various structural shapes, but, in the specific forms herein shown, they are adapted for use in connection with an I-beam 1, around which the concrete is poured-for making girders, joist and the like. I 4

In the form shown the device comprises a pair of reenforcing rods 2, which'ar-e spot welded or otherwise secured to a plurality of transverse tie wires 3. Thedistance between the rods 2 is considerably less than the width of the beamflange so that, when the device is applied to the beam, the rods 2 are spaced inwardly from the side edges of the flange, as shown in Fig. 2.'

In order to spacethe greater portion ofthe reenforcing 'devicefrom the structural elemend-the rods 2 areprovided with crooks or spacers 4 arranged at certain intervals.

The tie wires 3are arranged so as to permit the two reenforcing rods 2, .to have a limited relative movement toward and away from each other to accommodate structural elements of various widths. Inthe form shown, thetie wires are arranged in pairs with the wires of each pair crossed but not with structural beams andconnected toge'th er at their medial portions. With this improved arrangement of parts, the flexibility of the tie wires 3 permits a limited relative movement of the rods 2 for lateral adjustment. 7

The tie wires 3 projectlaterally beyond the reent'orcing rods 2, so as to provide fingers 5 adapted to be bent over the beam flange for.

supporting the reent'orcing device.

It is believed that the operation and method of installing the improved devices herein 7 shown and described will be obvious from the foregoing description.

Although but certain specific embodiments of this invention have been herein shown and described, it will be understood that certain detailsot the construction shown may be a1- tered or omitted without departing from the spirit of this invention as defined by the following claims.

I claim l 1. A reen forcing device for usein connection with a structural element comprising a pair a of substantially parallel reinforcing rods, and a pair of tie wirescrossed and rela-' tively movable at their medial parts and connected to said rods at points removed from said medial parts whereby said parallelrods away from each other. 7 2. Areenforcing device for use in connection with a structural elen'ient comprising a.

pair of substantially parallel r-eeni'orcing rods, and a pair of tie wires crossed and free at their medial parts and connected to said rods at points removedfrom said medial parts have a limited relative movement toward'and whereby said parallel rods have a limited rela tive movement toward and away from each" other.

3'. A reenforcing device for use in connection with a structural element comprising a palr of substantially parallel reen'forcing rods having crimps formed therein to provide spacers tor spacing said rods from the I element, a plurality of transverse tie wires arranged in pairs and welded to said rods, the wires of each pair being free and crossed at their medial part-s whereby said parallel rods have a limited relative movement toward and away from each other, and fingers formed on said wires for attachment to the element.

Signed at Chicago this 3rd day of March HENRY H. LAMPERT.

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