US876694A - Reinforced concrete construction. - Google Patents

Description

Eu. PATENTED JAN. 14, 1908.

P, N, GOMITOT.

REINFORCED CONCRETE CONSTRUCTION, APPLICATION FILED NOV. a, 1906.

UNITED STATES PATENT OFFICE.

FRANCOIS N. COMITOT, OF CHICAGO, ILLINOIS.

REINFORCED CONCRETE CO NSTRUG'IION.

Specification. of Letters Fatent.

Patented. Jan. 14, 1908.

Application filed November 3, 1906. Serial No. 341.945-

T 0 all whom it may concern:

Be it known that I, FRANooIs N. CoMrror, a citizen of the" United .States, residing at Chicago, in the county of Cook and-Stateof Illinois, have invented a certain new and useful Improvement in Reinforced Concrete Construction, of which the following is a specification.

My invention relates to reinforced concrete construction and to means whereby concrete structures may be reinforced, and'the object 'of the inventionis to provide a bar which may become universal or typical so that a bar of any given size and shape may be used under various conditions of load and dimensions by merely varying the length of the bar.

I attain my ob ects In thev manner illustrated in the accompanying drawings in' Which: v

Figure 1 is a general side view ofa bar and anchor rods assembled. Fig. 2 is a side view showing bars and rods in actual use.

' is a fragmentary pers ective view indicating the manner of assem ling the main bar and the anchor rods. Fig. 4 is an enlarged transverse sectional view taken on .line 4:, 4 Fig. 1.

4o Fi 5 is a fragmentary perspective analogous to ig. 3 but showing one of the flange apertures open at the side.

Referring tothe drawings which form a part of this specification; the main bar 6 is provided-with tjwo fl nge's-Z centrally located etweenthe to'pj-andi bottom of the said bar and formed thereon ythe usual rolling proc* ess. By .havin the flanges 7 central on the bar 6 the tie ro s rest upon each'iether under said flange without projecting ,below the lower surfa e of said bar- The side surfaces of the bar 6 above and below the said flanges 7 also serve to hold the tie rods "in their proper positions Whilethe concrete is being ut'in place. At frequentinterval's.in these anges are punched apieftures;8'.: .Saidaper K tures are designed to receive the anchor or tie rods, 9 1O, 11, 12. These rods may have ends 10*, $1.1; etc. upon them for further anchoring them in the concrete if desired.

The method of using and assembling the parts is as follows: At the central portion of the bar orbeam 6 is laid the first rod 9. The main portion ofthis rod lies below the flange 7 but the ends of the rod project up through the first pair of apertures 8-. In other words the rod for a considerable. ortion of its length lies below the flange 7 ut' at the end extends up through the flange so that the ex tremities of the rod may'become embedded in the concrete above. In an analogous manner the next rod 10 is laid beneath the flange and beneath the'adjacent portion of the rod 9,- but itsextremities extend beyond the rod 9 and pass up through the apertures just beyond those through which the rod 9 projects. Rod 11 is adjusted. to place in a similar manner, the central portion lying beneath the central portions ofrods 9 and 10 and. the extremities passing 11 through the apertures just beyond those t rough which. As a result-When the the'rod 10 projects. bar 6 and the diiferentrods are assembled the effect is to produce a member having a series of tie rods extending from it at various intervals so that when the concrete is poured around the assembled bar and rods the concrete holds the bar and rods together and is in turn reinfgrced by them. If the ends of the ro d are turned over or hooked as indicated inFigs. l and 2 there will be an additional strengthening and binding effect. At a pointwhere two bars meet the bent ends of the reds may overlap each other as shown in the middle portion of Fig. 2, thus also enhancingl the bmding effect. The advantage in this construction is that the bar 6 may be kept in st' d'ard'sizes and be adapted to varioustie iifditions of size and load of the buildingby cutting the bars to roper length and employing the roper num er of anchor 01 tie rods. 'It-is 0 vious that the flanges 7 may have apertures located close together which will have the advantage of affording the designer of the building an opportunity its to locate the rods as near together or far.

8 in flanges-7 be laterally surrounded by Although it is desirable that the apertures metal it"is 'not1necessary that these apertures be. closed at n -sma; apeptu i'e which is ll) ing of. a bar having two flanges centrally plying underthe said flange and theirends V top of the bar impinging against the sides open a the side is indicated in Fig. 5. With such construction the rods may beassembled by laying them in position from the side without actually passingthe ends up through -j Letters Patent, is: 1; Means for reinforcing-concrete consistcated between the top and bottom thereof on pposite sides and extending the entire ength thereof,' each provided witha row of a ertures, and a row of rods on each side of 15 t esaid bar having their central'portions projecting up through said a ertures the ortion of rods above and be ow the said ange lie adjacent the sidesof the barp 2. Means for reinforcing concrete consistin of a metal bar having flanges on opposite si es centrallyv located betwee'nthe top and bottom thereof and extending the entire j len th thereof, having a ertures, therein; 2'5 an rods on each side of sai bar having their central portions lying one upon the other be- .low the said flanges and thelrends projecting up throughthe said'apertures and above the said bar; the portion of the rods below the of the latter and the arts above the bar forming tie rods 'adapte to be embeddedamona.

binding effect.

sis-sabove said flanges, the'portion of the rods below the topof the bar impingin against the sides of the latter the parts aiove the 'flan es forming tie rods 'ada ted to be embedded in the concrete, and ends or-crooks near the ends of said rods for increasing their 4. A-concrete construction consisting of a bar having longitudinal flanges onjopp'osite sides centrally ocated between the top and bottom thereof and extending the-entire length thereof with a'pertures therein, two

rows of rods having their central portions lying'below the flanges andtheir ends prothrough said apertures toform portion of the rods below the top of the bar impinginga ainst the sides of the latter and concrete'inc osing the whole.

5." Means for reinforc in concrete consist in of a bar havingtwo anges on opposite si es centrally located between the top and bottom thereof and extending the entirelength thereof, each provided witha' row'of apertures, and a-rowof rods oneach side-pf said bar 'havingtheir central portions lying under the said flange and their-ends projecting up through-the a'ertures on an in cline and then bent paralle with the said bar, the said upper ends overlapping each other the'portion of the'rods belowtheto of the bar impinge against the sides of the atter.

In witness whereof, I have hereunto subscribed my name in the presence of two witnesses Francois N. ooMrTo'r;

Witnesses:

HOWARD M. Cox,

Q. J CHRISTOFFEL.

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