Dec. 31, 1946. ' 2,413,415 A_ OLSON ~ CONCRETE FORM TIE AND SPACER Filed March 31, 1945 127217512 far I ‘EU-7.1751- [7/5012 Z757 7%% @?ZZMZw/M‘ ' 537275 2,413,415 Patented Dec. 31,’ 1946 UNITED STATES PATENT OFFICE 2,413,415 CONCRETE FORM TIE AND SPACER August Olson, Palatine, Ill. ’ Application March 31, 1945, Serial No. 585,829 5 Claims. ((51. 25—1s1> 1 - This invention relates to a tie and. spacer de vice for concrete forms and the like. The inven tion more particularly relates to a tie and spacer device formed of metal wire provided at its ends with pairs of spaced loops, which end loops are 2 On the drawing: Figure 1 is a broken isometric view of a set of concrete forms or the like with which are illus trated tie and spacer devices of my invention co operatively associated with lock bars to hold such adapted to be inserted through pre-formed open forms in vertical aligned parallelism. ings in the wood forms used in the laying of struc tural concrete. In accordance with my present invention, the end loops of the wire tie and spacer devices are of such width as to require a partial Collapsing ‘of the loops when inserted through the pre Figure 2 is a broken, fragmentary sectional view with a tie and spacer device of my inven tion shown in elevation. , Figure 3 is a fragmentary, detail sectional view showing by means of dotted lines the opera tion of inserting a looped end. Figure 4 is a plan View of the preferred form formed openings in the forms, whereupon after of tie and spacer device of my invention. such insertion the inherent resiliency of the loops is such as to cause the loops to expand back to 15 \Figure 5 is a plan view of a modi?ed form of my invention. their normal widths and thus frictionally engage As shown on the drawing: the peripheries of the openings or holes in the The reference numeral l0 indicates a concrete forms. As a result of this construction, the tie form, which may be of metal but is customarily and spacer devices of my invention facilitate the setting up of concrete forms since after the end 20 of wood. In accordance with my present in vention, each of the concrete forms I0 is provided loops have ‘been inserted through the correspond— with a plurality of openings I I adjacent the edges, ing holes or openings in the spaced forms, the such as the edges l2 and I3, that are to abut each forms are then practically self-supporting in that other when the forms are set up in spaced ver they are held by the devices in properly spaced 25 tical position for the pouring of concrete, or the vertical parallelism. like, therebetween. While different lengths and The devices of my invention also cooperate in thicknesses of forms, such as the form I 0, may be a novel manner with the lock bars that are in used, it is preferable that the cooperating forms serted through the projected loop ends, in that be provided with identically arranged ‘holes I I, said loop ends can ‘be twisted, either separately or. in pairs, to grip the lock bars tightly and at 30 so as to he completely interchangeable, whether turned end-for-end or reversed with respect to the same time pull the abutting edges of adjacent their broad faces. _ forms more tightly together. This results from A tie and spacer device, indicated generally by the construction of my tie and spacer devices, and» the reference ‘numeral I4, is formed, in accord particularly the provision of a transverse wire portion joining the end loops in each pair. It is therefore an important object of this in vention to provide tie and spacer devices of novel and improved construction, such that the setting up of concrete forms and the like is greatly fa , ance with my present invention, out of a wire of suitable gauge having the desired degree of strength and resiliency. The wire used in form— ing the tie and spacer devices I4 may, for in stance, be of'mild steel of No. 8 or No. 10 gauge. cilitated. It is a further important object of this 40 In the preferred form of the device illustrated in Figures 1 to 4, inclusive, the tie and spacer de invention to provide a tie and spacer device vice I4 is formed from a single strand of wire formed of wire with pairs of looped ends adapted with an intermediate length l5 and two pairs of to be inserted through pre-formed openings or end loops I6, IBa and 17, Ha at opposite ends of holes in the concrete forms, adjacent the edges of said intermediate length l5. Each of the end such forms that are to abut each other, which loops l6 and I1, and Ilia and Ila is substantially looped ends cooperate with the lock bars when identical with respect to form and dimension. twisted to engage such lock bars tightly not As illustrated in Figure 4, the end loops l6 and only to hold the forms in aligned vertical par I‘! lie substantially in the same plane and the allelism but also to bring the abutting edges of adjacent forms into tighter contact with each 50 end loops [6a and Ila are also in substantially the same plane, the two planes being substantial ly parallel to each other. Consequently, the Other and further important objects of this loops I6 and lBa are aligned and the loops I1 and invention will be apparent from the disclosures Na are aligned so that a lock bar, indicated gen in the speci?cation and the accompanying draw 55 erally by the reference numeral l8 may be in ing. other. ' , 2,413,415 3 4 sorted through each of the pairs of loops l6 and [6a, and I1 and Ila. More speci?cally, in the construction of the preferred form of tie and spacer device l4, one end, I9, of the wire lies parallel to and in con of the modi?ed form of the device 30 is in general entirely similar to that already described for the device I4. After the forms Ill and Illa have been set up and the looped ends twisted against the lock bars tact with a transverse portion 20 that extends be £8 to hold said forms in spaced, vertical relation ship, concrete is poured in between the forms, as tween the two loops l6 and Mia. Said end l9 is customary, and allowed to set before the forms may, if desired be secured to the transverse por~ are removed. In removing the forms, the por tion 20 by soldering or brazing. The other end 2| of said wire similarly lies against and may be 10 tion 35 of the looped ends projecting beyond the lock-bars l8 may be snipped oil to permit re secured to the other transverse portion 22 join ing the loops 5'! and Na. Each of the loops it, led, I’! and Ila is provided with a rounded end portion 23, 23a, 24 and Ma to facilitate the in sertion of these end loops through the openings 5 I. The width, indicated by the letter w, of the end loops is somewhat greater than the diameter moval of the lock bars, or, alternatively, the pro jecting looped end portions 35 may be untwisted to permit removal of the lock bars, after which the wire ends are snipped off close to the holes H. This permits the forms l0 and l?a to be torn down. The intermediate tie and spacer por tions 15 are, of course, left in the concrete. of a hole I I, so that, as shown in Figure 3, when It will thus be appreciated that I have provided an end loop 16 is inserted through a hole I I, the sides of the end loop must be collapsed somewhat 20 a relatively simple and inexpensive form of tie and spacer device, the use of which greatly facil in the act of insertion. After insertion, as indi cated in dotted lines in Figure 3, the convergent itates the erection of concrete forms, or the like, and insures proper spacing and alignment of inner end portions 25 of said loop [6 frictionally such forms with a. minimum of effort on the part engage the periphery 26 of the hole ll. Thus, even before the insertion of a lock bar IS, the 25 of the laborer. By reason of the fact that abut ting edges, such as the edges [2 and 13 of adja vertical forms l0 and [0a, after the tie and spacer cent form boards can be drawn tightly together, devices ill have been inserted, are held against falling outwardly away from each other. Fur a relatively smooth surface on the set concrete is possible with an almost complete elimination thermore, the transverse portions 2!! and 22, in conjunction with the intermediate length l5, hold of the ridges so often formed at the abutting edges of the usual concrete forms. the forms Ill and Illa against movement toward Thetie and spacer devices of my invention each other. The result is that as soon as the function to keep the forms from spreading apart requisite number of tie and spacer devices l4 under any outward acting pressure. The trans have been inserted, the forms ill and Illa are practically self-supporting in a vertical position, verse portions of the devices, in conjunction with owing to these tying and spacing features of my the intermediate portions, keep the forms from collapsing inwardly and also serve as a gauge devices. After the tie and spacer devices l4 have been for the thickness of the wall of concrete to be positioned in place, a lock bar I8 is inserted poured. The end loops cooperate with the look through a number of the horizontally aligned ing bars, or slide bars, to brace the forms out looped ends It, l6a, etc. The lock bars l8 may wardly. By making the widths of the end loops be formed of metal, or other suitable material g1 eater than the holes in the forms, the end loops and are of such length as to take care of three are frictionally held in the holes after insertion or more of the forms IE), or l?a, making ‘up one to temporarily support the forms vertically until wall or the other of the completed form. The the lock bars can be inserted and held in place width of each lock bar it! is considerably less 45 ' by twisting the end loops thereagainst. than the length of a looped end, so that after The forms or panels may be locked edge to edge, insertion of a lock bar, the looped ends may be as illustrated, or an edge to a side face, as in mak twisted upon themselves, as illustrated in Figures ing corners. Instead of forming the forms or 1 and 2, to tighten them against the outer edge panels with their long edges vertical, they may. be of the lock bar, as at 21. It should be noted that 50 joined with their long edges horizontal, and the in twisting one of the end loops It to tighten the lock bars can extend vertically. same against the lock bar 18, tension is placed It will, of course, be understood that various upon the intermediate portion 20 to cause the details of construction may be varied through a same to hug tightly against the inner wall sur wide range without departing from the principles face, as indicated at S and against the inner pe of this invention and it is, therefore, not the pur riphery P of the holes H. The same tensioning pose to limit the patent granted hereon otherwise eiTect is produced when the looped ends I? and than necessitated by the scope of the appended [1a are twisted against the outer edge of the claims. lock bar 38. Instead of twisting the looped ends separately, they may be twisted together. Twist ing may be done by the use of a pair of pliers or by merely inserting a strip similar to the lock bar [8 but narrower through the looped ends and twisting said ends to tighten them against the lock bar. A modi?ed form of my invention is illustrated in Figure 5, which is similar to the tie and spacer 60 I claim as my invention: 1. The combination with concrete forms hav ing spaced openings adjacent the edges thereof that are to abut, of tie» and spacer devices having looped ends inserted through adjacent openings, said devices having transverse portions to con tact the inner surfaces of said forms, locking bars inserted through said looped ends to span and support adjacent forms, and the projecting por device M, except that the modi?ed device, indi tions of said looped ends being twisted tightly cated generally by the reference numeral 39 has two intermediate strand lengths 3| and Ski run 70 against said locking bars to hold said forms against said transverse portions to space the forms ning between the pairs of looped ends 32, 32a and apart. 33, 33a. The two ends of the wire forming the 2. The combination with concrete forms having device 30 may be brought together along one regularly spaced openings adjacent the edges intermediate length, such as the length Blue, and brazed or soldered together, as at 34. The use 75 thereof that are to abut, of tie and spacer devices 2,413,415 each formed with an intermediate spacing por tion, looped ends inserted through adjacent openings and a transverse portion joining each of said looped ends to lie against the inner sur faces of adjacent forms, and a member inserted in which said walls have aligned holes adjacent their edges that are to abut, said member com prising a single wire strand having an untwisted intermediate portion and transverse portions at the ends of the intermediate portion, and having a pair of loops at each end of said member with the loops at an end projecting in parallel relation the outer surfaces of adjacent forms, the portions from the ends of the transverse portion at that of said looped ends beyond said member being end of the intermediate portion, said end loops twisted upon themselves against said member to hold the same in place after insertion and to hold 10 having widths greater than the diameters of the holes but capable of contraction when inserted in said transverse portions against the inner surfaces said holes to frictionally engage the outer pe of said forms to space said forms apart. ripheries of said holes after insertion to hold said 3. In combination, a plurality of concrete forms forms against said transverse portions in set up of identical dimensions and having similarly ar ranged holes adjacent edges thereof that are to 15 spaced relation. 5. The combination with concrete forms hav abut each other when set up, unitary tie and ing spaced openings adjacent the edges that are spacer devices formed of wire with intermediate through the projecting looped ends to lie against to abut, of a one piece tie and spacer device com spacing portions andelosed end loops joined by prising a member formed wholly of wire and hav4 transverse portions, said tie loops having widths greater than the diameters of said holes but being 20 ing an intermediate spacing length of untwisted Wire with pairs of loops at each end of the said capable of contracting when inserted through untwisted spacing length, the loops at each end being joined by transverse lengths of wire, said ripheries of said holes after, insertion to hold said transverse lengths of wire engaging the inner forms against said transverse portions in set-up and spaced relation, and members for insertion 25 surfaces of said forms to space them apart when the device is thereto applied with the end loops through the projecting portions of said tie loops to extending through adjacent openings in the brace the outside walls of said forms, the project forms, and said end loops having widths greater ing extremities of said'tie .s loops being twisted than the diameters of the openings but capable of tightly against said members to tension said transverse portions against the inside surfaces of 30 contraction when inserted in said openings to frictionally engage the outer peripheries of said said forms to draw abutting edges of said forms openings after insertion to hold said forms against together, said forms being: spaced apart solely said transverse lengths of wire in said spaced by the engagement of the transverse portions of said holes to frictionally engage the outside pe said devices with the inner surfaces of said forms. 4. A form tie comprising a member adapted to 35 hold opposing walls of a form in spaced relation relation. I AUGUST OLSON.