US1976595A - Hanger - Google Patents

Description

Patented Oct. 9, 1934 "PA-TENT OFFICE 1,976,595 HANGER Hans J. Asleson and Oscar S. McCormick,

Minneapolis, Minn.

Application April 27, 1933, Serial No. 668,212

4 Claims. (01. Mil-$2) Our invention relates to'an improved hanger for use in supporting loads from load-supporting flanges which so-called flanges may take various forms but will usually be exposed flanges of load-supporting I-beams or I-columns of steel structure buildings. a

The improved hangers, while adapted. for supporting various different kinds of loads from supporting flanges, are particularly desirable and are herein mainly described for use in supporting concrete forms from the lower flanges oi supporting I-beams while the concrete is being poured thereabout and until the concrete becomes set so that the forms may be removed.

Among the important objects of our invention is the provision-of an inexpensive hanger of the class described that may be quickly and easily applied to supporting flanges and will, when properly applied, be capable of supporting great loads from the flange without danger of breaking or being accidentally displaced from the flange.

Another object of the invention is the provision or a hanger that is made up of few parts, of which parts certain thereof may be inexpensively salvaged' after others thereof have been completely embedded in said concrete. 1 a

Still another object-of the invention is the .,provision of a hanger of the kind describedthat may be positively locked to a supporting flange-without drilling holes or otherwise injuring the supporting flange or member.

The above and other important objects and advantages will be made apparent from the following specification and claims.

In the accompanying drawing, which illustrates the invention, like characters indicate like parts throughout the several views.

Referring to the drawing: I

Fig. 1 is a fragmentary sectional view with some parts shown in full of a supporting I-beam embedded in a concrete floor that is supported by temporary forms and incorporating one of our hangers to support the forms from the beam, the single hanger illustrated being shown mainly inside elevation with some parts broken away and shown in section;

Figs. 2 and 3 are detail views illustrating the progressive steps in applying the hanger to a flange of a beam or column, the hanger being shown in a partly but not completely assembled condition; v

Fig. 4 is a perspective View of the hanger in a completely assembled condition;

' Fig. 5 is a detail perspective view with some parts shown in dotted lines and someparts omitted;

Fig. 6 is a perspective view illustrating a slight modification of the hanger;

Fig. '7 is a fragmentary view partly in section and partlyin elevation showing a'somewhat difierent method of applying the hanger to a flange; 60. and

Fig. 8 is a view partly in elevation and partly in section illustrating a'modifled form of hanger.

' In Fig. 1 a floor supporting I-beam is indicated as an entirety by the numeral .10 and 'thelupper 65. and lower flanges of the beam are indicated by 11 v and 12, respectively. This beam is embedded'in a concrete floor 13 that has been-poured into and is temporarily supported by the customary forms 14, which forms are supported from the lower flange 7 0 12 of the beam by the improved clamping devices immediately tobe described.

Referring first to the hanger. as illustrated in Figs- 1 to 5, inclusive, the hanger illustrated in these figures is made up of three main pa'rts,towit: 75 a one-piece bracket 15 and a pair of nut-equipped bolts 16. The hanger bracket 16 is preferably formed from a strip of bar steel having its opposed end portions bent inwardlyato afford open supporting flange-embracing loops 17. For-receiving the bolts 16 the overlapping portions of'theopposed loops 17 are formed with aligned openings 18. these openings being either inthe natureof drilled bolt-receiving holes, as shown in Figs. 1 to 4-, inclusive, or open transversely extended slots or notches, as shown in Fig. 5. For the purpose of .easyand speedy application the bolts 16 areillustrated-as each provided with two nuts near one end for engaging opposite sides of the loops and .a single load-engaging nut near their extended .90

ends but it will, of course, be evident that the bolts may be provided with fixed heads at one end or the other and therefore the loop-engaging end nutsof the bolts may sometimes hereinafter be referred to as head means.

'- The hangers'are preferably designed for use with beam flanges of a particular size so that when applied they will flt the flange substantially as illustrated in Fig. 1, in which figure it will :be notedthat the free ends of the bracket loops -17 overlap opposite edge portions of the flange 12 and the bolts are spaced a distance only slightly greater than the width of said flange and lock the bracket against lateral displacing movements in respect to theflange. It will further be noted, by reference to Fig. 1, that the opposed loop-engaging nuts or head means of the hanger bolts overlap the edge portions of the flange so that when said opposed loop-engaging nuts'are turned into tight clamping-engagement withthe loops the edge 11() portions of the flange will be firmly clamped between the said opposed nuts and when a load is applied tothe bolts it will be transmitted to the beam flange through the upper nuts or head means and the portions of the loops between said nuts and the flange. The straight intermediate portions of the brackets positively hold the bolts against spreading movements and the spaced free end portions of the loops hold the bolts against bending or tilting movements away from the flange.

The flanges 11 and 12 of the beam illustrated have parallel sides but as is well known, beams and columns used in buildings often have flanges that are tapered from their centers toward their opposite edges and it is mainly for use with such tapered flanges that we provide the flange-engaging free end portions of the loops with transversely extended gripping teeth illustrated and indicated by 19 in the drawing. These teeth become sufliciently embedded in the engaged flange under clamping pressure to positively eliminate any tendency of the free'ends of the loops to slide outward on the tapered surface of the load.

The distance between theinner extremity of one of the loops 17 and the free end of the other thereof is greater than the width of a flange 12 with which the hanger is intended tobe attached so that the hanger may be applied to the flange by movements transversely thereof, as shown in Figs. 2 and '3, and which requires removal of the bolt from the loop 17 that is primarily hooked over an edge of the flange. Whenever it is desired the bolt, through the last loop applied to the flange, may be positioned in said loop prior to application of the hanger bracket and flange.

In the particular application of the hanger illustrated in Fig; 1, the hanger bolts 16 extend through the'lowermost portion of the form below the beam and through a supporting plank 20 extending transversely of the beam and the nuts, atthe lower extended ends of the bolts, are drawn up against the plank. The extended ends of the plank 20 support horizontal portions of the forms between the beam 10 and other parallel beams of similar character through joists 21 extending parallel with the beam and transverse joists 22. For maintaining the forms 14 evenly spaced from the beam, we provide the intermediate portions of the bracket with outwardly extended spacing lugs 23, these preferably being cut and turned outjwardly from the bodies of the brackets. The lugs v23 are a very inexpensive addition to the hangers and afford a very simple and eflicient means of maintaining the forms in properly spaced relation to the beams. 'I'he improved hangers are, as previously indicated, suitable for supporting many different classes of loads other than concrete forms and one other thereof is for supporting pipes from exposed flanges and the hangers herein described can-readily be adapted to such use by merely providing-a suitableconnection such as the plank 20 between the extended ends of the bolts 16 to spread the bolts farther apart than shown in Fig. 1 so that the upper nuts or head means will not overlap the edges of the beam flange and when the hanger is applied in this manner,

washer-likespacers 24 are preferably applied between the opposed portions of the loops, as indicated in Fig. 7. These spacers take up the space between the bolts and the edge of the beam so that the bolts effectively engage the flange and therefore act as stops to prevent lateral displacing movements of the bracket from the flange. The spacers being clamped between the loops stiffen the loops materially but in spite of this added strength it is usually necessary 'to'make the brackets much heavier than when nuts or head means of the bolts overlap the edges of the beam.

The hanger shown in Fig. 8 differs from the others described only in that it is provided with only one hanger bolt and the loop at the end. thereof opposite the bolt is so relatively short that the closed end thereof engages the flange and serves to prevent movements of the hanger in the direction of the bolt-equipped end thereof.

When the hanger is used for supporting concrete forms as illustrated in Fig. 1, the portions of the hanger bolts, which are to-"be embedded in the concrete, are preferably greased so that they may be removed from the opposed bracketengaging nuts and from-the concrete after the concrete has become set. With the bolt so greased removal thereof is made relatively'easy since the opposed loop-engaging nuts thereofare held against rotation by the set concrete. In cases like that illustrated where the extended ends of the bolts are provided with removable nuts in place of fixedheads, it will be necessary to use a pipe wrench or the like'to'remove the bolts, but in cases where fixed heads are applied to the free ends of the bolts, removalv ofthebolts maybe effected with an ordinary monkey wrench or the like. This feature of being able toremove the bolts is highly important in that the bolts represent a greater costthan the brackets and by removing the same and. using themi over and over again great" savings immaterial: are accomplished. In most clamping devices heretofore used for the purpose'indicated, the portions of the clampsor supporting means which protruded from the concrete; had to'be'burned off or out off after the forms wereremoved and this process in itself is more expensive than re.- moving, the bolts in the mannerdescribed;

' In some cases where it is desired to hang pipes or the like from a ceiling, the bolts may beleft in place and used for that purpose, thereby saving the installation of independent hangersxg,

What we claim is: H I

1. The combination with a-supporting' flange", of a hanger for supporting loads from the flange comprising a bracket having an intermediate portion adapted to fit against an exposedsurface of the flange and provided at its opposite ends with opposed open loops for receiving opposite edges of the supporting'flange, load -supporting bolts passed through-the opposed portionsof each of said loops, said bolts being spaced apart a distance only slightly greater than the width of the said supporting flange so that'they will engage or nearly engage the opposite'edges of the supporting flange and prevent laterals-dis; placement of the bracket from'the flange, the distance between the inner extremity of one. of said loops and the free'end of the other ofsaid loops being greater than the width of the. sup.- porting flange so as to permit applicationof the bracket to the flange by movements transversely of the flangewhen one of said bolts is removed, and head means on said bolts normally engaging the'free end portions of the loops and overlapping their respective edges of the supporting fiangayfi its iio

iis

2. The combination with a supporting flange, of a hanger for supporting loads from the flange comprising a bracket having an intermediate portion adapted to fit against an exposed surface of the flange and provided at its opposite ends with opposed open loops for receiving opposite edges of the supporting. flange, load-supporting bolts passed through the opposed portions of each of said loops, said bolts being spaced apart a distance only slightly greater than the width of the said supporting flange so that they will engage or nearly engage the opposite edges of the supporting flange and prevent lateral displacement of the bracket from the flange, the distance between the inner extremity of one of said loops and the free end of the other of said loops being greater than the width of the supporting flange so as to permit application of the bracket to the flange by movements transversely of the flange when one of said bolts is removed, and clamping nut and head means on said bolts engaging opposite sides of said loops and overlapping said flange.

3. The combination with a supporting flange, of a hanger for supporting loads from the flange comprising a bracket having an intermediate portion adapted to fit against an exposed surface of the flange and provided at its opposite ends with opposed open loops for receiving 0pposite edges of the supporting flange, load-supporting bolts passed through the opposed portions of each of said loops, said bolts being spaced apart a distance only slightly greater than the width of the said supporting flange so that they will engage or nearly engage the opposite edges of the supporting flange and prevent lateral displacement of the bracket from the flange, the distance between the inner extremity of one of said loops and theireeend of the other of said loops being greater than the width of the supporting flange so as to permit application of the bracket to the flange by movements transversely of the flange when one of said bolts is removed, and a head-acting nut screw-threaded onto the inner end portion of each of said bolts and normally engaging the free end portions of said bracket loops and overlapping said flange in rotated positions on their respective bolts.

4. The combination with a supporting flange, of a hanger for supporting loads from the flange comprising a bracket having an intermediate portion adapted to fit against an exposed surface of the flange and provided at its opposite ends with opposed open loops for receiving opposite edges of the supporting flange, load-supporting bolts passed through the opposed portions of each of said loops, said bolts being spaced apart a distance only slightly greater than the width of the said supporting flange so that they will engage or nearly engage the opposite edges of the supporting flange and prevent lateral displacement of the bracket from the flange, the distance between the inner extremity of one of said loops and the free end of the other of said loops being greater than the width of the supporting flange so as to permit application of the, bracket to the flange by movements transversely of the flange when one of said bolts is removed, and an op-. posed pair of nuts screw-threaded on each of said bolts and engaging opposite sides of said bracket loops and overlapping said flange in all their rotated positions on said bolts.

HANS J. ASLESON. OSCAR S. MCCORMICK.

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