US1043204A - Concrete-reinforce. - Google Patents

Description

A. P. CLARK. CONCRETE REINPORGE. APPLICATION FILED APR.18, m0.

1,043,204. l atented Nbv. 5, 1912. r FSHBETBSHEET 1.

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A. P. CLARK. ,GONGRETE RBINFOEOE.

V APPLICATION FILED APB-.18, 1910. 1,43,204@

' Patented Nov. 5, 1912.

2' SHEETS-SHEET 2.

A. P. CLARK. I CONCRETE REINPORCE.

V APPLICATION IILL'D APR. 18, 1910. 1,043,204.

Patented Nov. 5, 1912.

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ARTHUR P. CLARK, OLE ST. LOUIS, MISSOURI, ASSIGNOR- TO CORRUGATED IBAR COMPANY, OF ST. LOUIS, MI$SOURL A CORPORATION OF MISSOURI.

To all whom it may concern:

Be it known that I, ARTHUR P. CLARK, a citizen of the United States, and a resident of the city of St. Louis and State of Mis- 55 souri, have invented a certain new and useful Improvement in Concrete-Reinforces, of which the following is a specification.

This invention relates to reinforces for concrete beams and the like.

The principal objects of the invention are to produce a simple and inexpensive collapsible unit frame construction which will not interfere with the flow of the concrete, to secure compactness when the frame is collapsed, to produce a continuous secondary reinforce which can be readily applied to the primary reinforcing members, so as to take care of the shearing stresses and diagonal tension stresses in the beam, and to attain certain other advantages hereinafter more fully appearing.

The invention consists in the parts and in 'the arrangements and combinations of parts hereinafter described and claimed.

In the accompanying drawings which form part of this specification and wherein like symbols refer to like parts wherever they occur, Figure 1 is a side elevation (omitting some details) of a collapsible reinforcing frame embodying my invention; Fig. 2 is a plan view showing the unit frame in its collapsed condition; Fig. 3 is a. plan view showing the unit frame in its open or normal condition; Fig. 4t is a transverse vertical section through a preferred arrangement of unit frame comprising bars of square section; F ig. 5 is a fragmentary side elevation of the frame shown in Fig. 4; Fig. 6 is a fragmentary plan view showing the frame in-open position; Fig. 7 is a fragmentary plan view showing the frame collapsed; Fig. 8 is a transverse verticalsection similar to Fig. 4, showing a frame comprising bars of round section; Fig. 9 is a fragmentary side elevation of the frame shown in Fig. 8; Fig. 10 is a detail perspective view of a wire constitutinga series of secondary reinforcing loops and also illustrating a fastening clip de' tached therefrom; and Fig. 113s frag- Specificetion of Letters Yatent.

Application filed April 18, 1910.

i tndinal plane.

mentary side elevation of the end portions 3 of the prunary members of a side frame,

showing a portion of the secondary reinforcing wire secured thereto. l

Patented Nov. 5, 1912. Serial No. 556,082.

trated in the drawings. In this construction, the primary reinforcing members of each side frame comprise a straight horizontal bar 1 at the bottom and a second bar 2 located above it, both of which are preferably corrugated. or provided with transverse ribs 3. The middle portion of the upper bar 2 is parallel with the first mentioned bar 1, and, at each end of the middle portion, said upper bar inclines upwardly and thence extends horizontally to each end in conformity with the common practice. In some cases, the ends of the upper bars extend beyond the ends of the bottombars. The two bars thus constitute the primary reinforcing members of a side of the unit/frame are firmly held together by suitable spacing members or distance pieces 4 and the side frames or members of the complete unit frame are connected by links 5 which are pivoted to said distance pieces.

The distance pieces 4 each comprise two oppositely-disposed bars or straps having counterpart ofi'set portions 6 into which the respective bars I, 2 are fitted. The two members of. the distance pieces 4 may be secured together in any suitable manner but preferably by cotter pins 4 which are inserted through alining transverse holes in the respective companion members. The members of the distance pieces are preferably semi-cylindrical in cross section, so that the end and intermediate portions which are brought together make the end and intermediate portions of the distance pieces cylindrical.

The links 5 are perforated and the end portions of the distance pieces are projected therethrough and secured by the cotter pins. The end portions of the upper links 5 are extended some distance beyond the sides of the collapsible unit as at- 7 for the purpose of properly spacing the several units when .a multiplicity of thesame are employed in reinforcing a beam or floor. That is, the several collapsible units are opened as they are assembled in position, and the adjoining units are brought together until the ends of the upper links 5 touch in the same longi- To eliminate unnecessary projecting portions when the unit frames are collapsed as shown in Figs. 2 and 7, the

or beveled as at 8. By this arrangement, the

A colla isible reintorcin unit is illuso ,osite dia onal corners which would end portions 7 of the top link 5 are mitered iii otherwiseiproject some distance beyond the sides of the' bars are removed and the colla'psed units are thereby, rendered more compact soasto take 'up less space in storage and transportation. j

The bottom end portions 9 of the distance pieces 4 extend some distance beyond theottom links 5 so as to bear upon the centering or false work and thereby support the intermediate ortions of'the bars and preventthe same rom sagging.-

- The secondary reinforce comprises a continuous wire which is looped successlvely to provide a group of secondary reinforcone end of the lower bar of a side frame" ing members. This wire is fastened near of the primary reinforce and thence extends vertically upward and over. the outer end portion of the corresponding upper bar and thence downwardly at an inclination to and around the lower bar;v thence up again and over the upper barand down at an inclination to the lower bar and so on. Preferably, the several loops 1 1 of the wire reach to the same height, the outermost loops be- 'ing in cont-act at their .tops with the upper reinforcing bar, while the remaining loops extend above the portions of the bar inclosed bythem, respectively. The wire thus constituting a group of secondary reinforcing members is secured by any suitable fasteners 12 to the main reinforcing bars and is preferably of. a kind that has suitable rigidity.

A suitable fastener or clip consists of a blank of pliable metal of a width less than the thickness of the bar and provided with elongated lateral projections 13 at diagonally-opposite corners. v. These projections 13 are of such length that when the body portions lie fiatwise against one side of 'a ar and the projections are bent, they will reach around the opposite side. A trans verse groove 14 in the body portion 12 receives the wire, which is thus firmly clipped 7 to the bar. These clips are .shorter than thedistance between the ribs or corrugations with which my reinforcing bars are provided'and therefore, while they may be-p'ositioried upon the bar at any point along its length, when once clamped upon the bar are concrete, yet the parts are securely held intact. It is noted that by reason of the arthe bar,

allel frames being pivot-ally linked together, the construction may be-colla'psed compactly for shipment, in which condition it is less bulky and less liable to injury. So, too, it e is noted that the primary and secondary reinforcing members being secured together, the frames are stiffened and not liable to be accidentally sprung outof shape.

WVhile the foregoing descript'onrelates to a collapsible'unit frame and fr mes having doubleside members, it is obvious that the invention may be embodied in a single reinforce or a unit frame having but a single primary reinforcing member or more than two thereof. So, too, it is obvious that it is not necessary that the parallel frames or members of a collapsible unit should be counterparts of each other.

, What I claim is:

1. A concrete reinforce comprisingmembers located in parallel vertical frames, the members of said parallel frames being held in proper relation to each other by vertical spacing members, and parallel links collapsibly connecting said frames together, said links comprising flat plates which are pivoted to said vertical spacing members.

2. A concrete reinforcecomprising parallel tension members and, rigid parallel links collapsibly connecting said 'members together, said links com rising flat lates which are pivoted inwar ly from their .opposite ends to said'tension members so that their opposite end portions extend beyond the outer sides of said tension members when the same arein open position.

I 3. A collapsible reinforcing unit for concrete beams comprising parallel reinforcing bars and rigid parallel links collapsibly connecting said tension members together, said links comprising flat plates which arepivotally connected to said tension members and have their end portions-extended beyond their pivotal points, so that said end portions project beyond the outer sides of said tension members when the same are in open position, and thediagonally-opposite corners ofsaid links being mitered so that no portions of the links project beyond the outer sides'of said tensionfmembers when 5 the unit is collapsed;

4. A concrete reinforce comprising reinforcing bars located in parallel vertical frames, spacing members adapted to hold 'said bars 'in proper relation to eachother, S2L1d spaclng members comprising vertical bars arranged in pairs and having oppositely-disposed oflset portions in which said reinforcing bars are seated, and rigid parallel links comprising fiat plates which are perforated and ivotally fitted over the ends of said spacing ars.

5. A colla sible concrete reinforce comprising rem orcing bars secured together in 1'11. ilel vertical frames, spacing members for holding said reinforcing bars in proper relation to each other, said spacing members comprising pairs of bars having oppositely-disposed counterpart ofiset portions in which said reinforcing bars are seated, means for securing said spacing bars to-' gether, and rigid parallel links connecting said framestogether, said links comprising flat plates which are perforated and have the opposite end portions of said spacing bars pivota'lly fitted therein, the opposite end portions of said links being extended beyond their pivotal points, so that said end portions project beyond theouter sides of 'said frames when the same are i open position.

6. A collapsible concrete reinforce comprising reinforcing bars secured together in parallel vertical frames, the bars of each frame being held in proper relation to each other by spacing members comprising pairs of bars of semi-circular cross section placed together flatwise and having oppositely-disposed counterpart offset portions in which the reinforcing bars are seated, means for securing said spacing bars together, and rigid links pivotally connecting the side frames together, said links comprising flat plates which are perforated to receive the.

end portions of said spacing bars.

'7. A collapsible concrete reinforce comprising reinforcing bars which are secured together in parallel vertical frames, said bars being held in proper relation to each other by spacing members comprising pairs of bars of semi-circular cross section placed together flatwisc and having oppositely-disposed counterpart ofiset portions in which the reinforcing bars are seated, means for aid spacing bars together, and rigid par allel links pivotally connecting the side frames together, said links compilsing flat plates which are perforated to receive the end portions of said spacing bars, and the opposite end portions of said plates extending l yond their pivotal points, so that portions extend beyond the side it en th me are in open position. .i collapsible concrete reinforce comng bars which are secured together in *allel vertical frames, said bars being held lzi proper relation to each other by spacing members comprising pairs of bars of semicircular cross section placed together fiatse andhaving oppositely-disposed counterpart offset portions in which the reinforcing bars are seated, means for securing said spacing bars together, and rigid parallel llnks ,pivotally connecting the side frames together, said links comprising flat plates which are perforated to receive the end portions of said spacing bars and the opposite end portions of said plates being extended beyond their pivotal points, so that said end portions extend beyond the side frames when the same arein open position, and the diagonally-opposite corners .of' said plates being mitered so that no portions of said plates project beyond the outer sides of said frames when the same are'collapsed.

9. Ina concrete reinforce, a reinforcing bar having transverse ribs thereon, and loops constituting shear members, said loops passing around said bar and secured thereto by clips seated on said bar and substantially fitting between successive ribs.

10. A concrete reinforce comprising a horizontal lower bar, an upper bar, members for permanently positioning said bars with relation to each 'other, a wire looped continuously around said bars, and clips for securing said wire to said bars, said clip consisting of a flexible blank having diagonally-opposite lateral extensions bent around the bar and a groove in the body portion to receive said wire.

11. A collapsible concrete reinforce comprising a plurality of frames and links pivotally connecting them together, each frame comprising a horizontal lower bar, an upper bar whose'end portions are offset upwardly.

members for permanentlypositioning said bars with relation to each other, and a wire secured to and looped continuously around the outer portions ofsaid bars, said links being pivotally mounted on the positioning members of their respective frames.

12. A concrete reinforce comprising mem' bers located in parallel frames, the members of said parallel frames being held in proper relation to each other by spacing members, and parallel links collapsibly connecting said frames together, said links comprising flat plates which are pivoted to said spacing members.

St. Louis, Mo., April 15th, 1910.

. ARTHUR P. CLARK.

Vitnesses:

Anrnnn E. LINDAN, W. H. Bonn.

denies of this patent may be obtained for five cents each, by addressing the Commissioner of li'atents,

Washington, D. G."

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