US992970A - Concrete reinforcement. - Google Patents

Description

E. MOGLURE. I

CONCRETE REINFORCEMENT.

APPLICATION FILED we. a, 1910.

Patented May 23, '1911.

- fwmzz/zwae all (9 UNITED STATES PATENT OFFICE.

- EDWARD MoGLURE OE CHICAGO, ILLINOI S, ASSlIGNOR OF ONE-HALF 1'0 P. i

, SMITH, OF CHICAGO, ILLINOIS CONCRETE REINFORCEMENT.

Specification of Letters Patent.

v Patented May 23, 1911.

Application filed. August 8, 1910. serialflo. 576,088,

cago, in the county of Cook-and State of .5 -'I1linois, have invented 'new"and usefullImprovements in Concrete Reinforcements, of which the following isa specification.

I This inventionlrelate's to concrete reinforcements and more particularly to that class of reinforcements used in reinforced concrete'columns for resisting the lateral or transverse stresses that occur therein.

. The object of this; inventionis to a reinforcementunit of this class which may be collapsed into condensed form for transportation or storage, and which maybe readily extended into operative condition for use in the column. v

To such ends this invention consists in a reinforcement for resistin stresses in columns, and having spaced, en-

. circling reinforcement members and one or more spacing members directly secured thereto in such manner that the whole may be collapsed upon itself into compact form orextended into operative condition.

v Th'e invention further consists in the several novel features of construction and arrangement set forth in the following s ecifi cation andparticularly pointed out in the claims.

The invention is clearly illustrated in th drawing furnished herewith, in which- M Figure 1 is a side elevation ofa reinforcement embodying the preferred form of the invention and showing the same in its extended or operative position, Fig. 2 is an .end view'thereof, Fig. 3 is a side elevation of the reinforcement shown .in Fig. 1, but

illustrating the same in its collapsed condition, Fig. 4 is an end .view of the reinforcement in its collapsed condition and Fig. 5 is a fragment-a1 side View of a spacing member showing a number of the encircling members in cross section and secured upon said spacing member.

Referring to the drawings, which show an embodiment of the preferred form of'the invention, an encircling reinforcement element- 10, will be seen, which element is adapted to act as a reinforcement for reinforced concrete columns and arranged to resist the lat-ral or transverse stresses that occur therein. Said encircling reinforcement ele- 55 meat may be made in various forms, and as the lateral showncom rises as ii'al band, the coils or turns of w ich may e spaced apart to suit theparticular conditions in any given case. Said s 'piral band. maybe made -of-round "rod-- or wire of proper diameter, but it is obviousgoo that various other forms of strain resist'ni elements may be used. For'mainta-ining the coils of said encircling reinforcement elev ment. in spaced relation to each other, s acing members 11, 11*, are provided, whic as shown may have-seats 12, adapted to receive the coils of the encircling reinforcerov1de ment element 10. It is preferred to secure said encircling members in the seats 12, and to accomplish this, overhanging portions are provided upon the spacing member, which as shown may comprise tongues 13, that ma I be clenched overthe portions .of the e circling members confined in the seats.

' Many forms of spacing members are ell known tothose skilled in the art, and may be substituted for the one shown in the drawings without departing from the spirit of this invent-ion. I

It is preferred to employ two more spacing members, 'two of which 11", re an ranged diametrically oppositeto each other as shown in Figs. 1 and 2, which spacin members actnot only to space the severa coils or turns of the encircling reinforcement elements, but toprovide means whereby said encircling reinforcement may be" moved into condensed'conditiori. When the particular formof spacing, member shown in the drawing isused', the tongues 13 may. '90 be clenched down 11 on the encircling members sufficiently to retain the ,sameui their seats, butnot firmly enoughzt'o prevent the 1 several .coils' of the encirclingireinfopcements from turning in the seats. When Emp're than twospacing members are used-1n the dev ce,

said extra spacing member or members should be loosely- 'se'cured upon the encircling members so that they may be slid around upon the encircling members until brought adjacent tothe stationary spacing members 11. When only two spacingmembers are used, it is evident that the reinforcement may be collapsed into condensed form by simply forcing "the spacing members 11, in opposite directions as indicated by the ar rows a, in Fig. 1, until the parts are brought into the collapsed condition seen in Fig. 3.

In this condition the parts are brought into the compact form and the parts may be easily handled and will occupy considerably less space than the parts would in their extended form. To bring said condensed reinforcement into operative position, the bars,

the other spacing members are first shifted around until they occupy the position shown in dotted lines in Fig. 2; that is to say, they are brought close to the stationary spacing members 11, so that l the seats thereof will be in register with 1 each other, whereby the seats will act as fulcrums or hearings, in which the several coils of the encircling element may turn.

This form may then be condensed by simply shifting the groups of spacing members lon- 'git-udin'ally in opposite directions as before,

and the. reinforcement may be extended into operative form by .re-shifting the spacing I members and'subsequently moving the intermediate spacing members into such positions that all will be symmetrically disposed with respect to each other. After this has been done, the tongues of the spacing members may be clenched down if desired, to more rigidly fasten the encircling members to. the

spacing members.

The advantages of this device are readily apparent. The condensed structure can be handled easier, occupiesless room in storage, and reduces the cost of transportation on account of the reduction of space occupied. While I have shown and described the preferred form of the invention, it is to be understood that various modifications and arrangements of the several'parts 'may be made without departing from the spirit of the invention, and I do not desire, therefore, to limit, myself to the exact construction shown and described, except as may be i545 necessitated by the state of the art. 'I claim as new and desire to secure by Letters Patent:

' 1. A reinforcement for reinforced concrete 4 columns, comprising an encircling reinforcement element having a plurality of spaced encircling members, and spacing bars for said encircling reinforcement element having notches in which the reinforcement members of. the reinforcement element are rotatively securedy'and having overhanging portions for loosely holding said encircling members in the notches, whereby said spacing'members' may be shifted longitudinally of themselves t0 bring-said encircling reinforcement into collapsed form.

2. A reinforcement for reinforced concrete columns, comprising an encircling reinforcement element having a plurality of encircling members, a pair of diametrically opposed spacing members having seats formed therein for receiving and spacing apart said encircling members and overhanging por-v tions for loosely. retaining said encircling members in their seats, said seats acting as bearings in which the encircling members may turn,'whereby said spacing members may be shifted relative to each other to collapse the reinforcement into compact form.

3. A reinforcement for reinforced concrete columns, comprising a spiral reinforcement,

a pair of diametrically opposed spacing" members. having seats formed therein at definite, fixed, pointsfthereon for loosely receiving and spacing the several coils of the spiralreinforcement member, said spacing members being adapted to be shifted relative to each other to collapse the reinforcement into compact form. a

4. A reinforcement for reinforced concrete columns, comprising a spiral reinforcement member formed of a round rod, a pairof diametrically opposed spacin members,

having notches formed therein or receiving and spacing apartthe several coils of the spiral reinforcement member and overhang ing tongues arranged to loosely secure said coils upon the spacing members, said spacmg members being adapted to be shifted relative to each other to collapse the-spiral reinforcement into compact form.

5. A concrete column reinforcement unit, comprising a spiral band and spacing bars for spacing the coils apart, the several COllS of the band being rotatively secured in seats formed in said spacing bars, and being capable of movement into collapsed form while connected with the spacing members.

In witness whereof I have hereunto subscribed my name at Chicago, Cook county, Illinois, this 1st day of August 1910.

EDWARD MCCLURE.

Witnesses:

FANNm F. RICHARDS, CHARLES O. SHERVEYI',

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