US 1311486 A
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E. .L. BENEDFCT.
APPLICATION FILED DEC-20.1918.
1,3 1 1,486. Patented July 29, 1919.
ll Benediai' EDWARD L. BENEDICT, OFBALTIMORE, MARYLAND, ASSIGNOR 0F ONE-HALF TO OBVILLE O. ROBINSON,
OF BALTIMORE COUNTY, MARYLAND.
Application filed December 20, 1918.
To all whom it may concern:
Be it known that I, EDWARD L. BENEDICT, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Building Structures, of which the following is a specification. v
This inventionrelates to metal building structures, andmore particularly to a sheet metalbar adapted for convenient attachment to other similar bars and usable as a unit in constructing the frame-work of metal buildings.
Tn the accompanying drawing,
. Fi ure 1 is a pers ective view of a sheet meta T ber, partly roken away, embodying my improvgments;
Fig. 2 is a similar view of one end of a sheet metalcolumn adapted to make a rightang led joint with the bar shownin Fig. 1,
ig. 3 is a side elevation showing the joint formed by connecting the bars illustrated in the previously described figures;
Figs. 4c and 5 are detail perspective views illustrating the manner in which several bars may be connected in assembling the frame-work of a building, and,
Fig. 6 is an end elevation of an-assemblage of metal T-bars arranged to form a building frame.
Referrin to Flg. 1 of the drawing, A represents a -bar rolled from a sheet metal;
strip, the head 1 of the bar being formed from the central portion of the strip by folding the strip longitudinally, as indicated at 2, and the web 3 is formed by bendmarginal portions of the str1p outwardly, as indicated at 4, at right angles to the head. The bar thus comprlses the head 1, composed of a double thickness of sheet metal rolled substantially flat, and two parallel web portions 3 spaced a short distance apart, as shown. For the purpose and securing a pluof readily assembling building structure,
rality of these barsm a I punch one or more head of the bar, in alinement with the space or channel between the web portions 3, and the length of each slot is substantiall equal to the width of the web portion of t e bar. These slots are punched after the bar has been rolled by layin the head ot the bar on the punching mac inc and passing a flat Specification of Letters Patent.
of the column a distance a slotsor kerfs 5 in the I Patented July 29, 1919.
Serial No. 267,602.
punch downward between the web portions, the latter servingas guides, so that the slot, when formed, is alined with the channel between the web portions. Such slots. may be formed at various points in the head, but for most'purposes, the bar is slotted in the ends only, as shown in Fig. 1.
The manner in which the bar is used in building construction is illustrated in Fig. 6, and the joints or connections between the bars are illustrated more in detail in Figs. 25, inclusive.
In Fig. 6, two of the sheet metal T-bars, arranged as supporting columns, are shown at 6, and to the upper ends of these columns is connected a truss bar 7 Above the truss bar are rafters 8, struts 9, and ties 10, all composed of the sheet metal T-bars and connected together to form a roof structure. In Fig. 2 is shown the upper end of one of the columns 6, in which the head portion 1 of the bar is sheared from the web portions for a distance substantially equal to the width of the bar, and the head portion is bent outwardly at right angles to the bar,
'as shown, in order to provide a support for the trussbeam 7 As shown in Fig. 3, and also in Fig. 4, the column and truss beam are connected together by passing the slotted end of the truss beam down over the web of the column until the truss beam rests upon the lateral support 1. truss beam being substantially equal in length to the width of the web of the column, and the support 1 being below the end proximatel equal to the depth of the truss earn, it wil be evident that the parts will make a substantially flush joint when placed together. Bolt holes I), properly positioned, "are punched in the webs before the parts are assembled, and bolts a secure the webs ,t0 gether. Other bolts d ass 7 through the head of the truss baran tions 6 in the lateral support 1 the truss bar to said support.
, In Fig. 4, the manner of connecting one of the rafters to the column and truss bar is illustrated. In this-figure, the column and truss bar are connected as shown in Fig. 3, and the rafter 8 is joined to the webs of both of said bars by assing the web portions 3 of the rafter etween the web perand secure The slot in the through perfora-' tions of the truss and thecolumn. Whenget er, and an additional bolt 0'', passing through thewebs of the, truss bar andrafter, forms a further'se'curing means.
Fig; 5 illustrates'the connection between the .truss bar and a strut 9 will be seen'that by simply placing the lower end ofthe strut or tie so that-the slot 5 therein will straddle the web of the truss bar, and then bolting the .webs of the -b the channel adapted to bars togethenffirin and secure joints are quickly made. In Fig. 5, the web of the strut 9 straddles the we of the truss bar and the web of the tie 10 is slightly spread at the bottom and straddles the webof the truss bar as of the" three .bars are connected by the bolts f. In the roofing structure shown in the drawing, it will; beund'erstood that the struts9flareslotted at both ends and strad-' die the webs ef-the bars 7 and 8, and the ties l0 are'also, slotted at both ends. The gusupper ends of the ties straddle a metal set-plate 11', which fits between the portions of the rafters 8 at their upper web ends and tie '10.. It
well as the strut, and the webs a channel therebetween,
arness and is bolted to said web portions and to portion folded upon itself and flattened to form a head and having its marginal portions bent outwardly, from the head, parallel with one another, to form a web, said marginal portions spaced apart to provide a channel therebetween, the head of the cam having a longitudinal slot in line with refieive the web of a similar beam.
2. In a building structure, a T-beam com= prising a sheet metal stri having its central portion folded upon itse f and flattened to form a head and having its marginal portions bent outwardly from the head, parallel with one another, to form a web, said marginal portions spaced apart to provide the head of the beam having a longitudinal slot in each end, said slots being in line with the channel and adapted to receive the webs of similar beams.
In testimon whereof I aflix m si ature.
DWARD L. BE E 101.