US 2088781 A
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1937- I I R. A. FOLSOM 2,088,781
S TUDDING STRUCTURE Filed Jan. 29, 1936 INVENTOR. w
Patented Aug. 3, 1937 PATENT OFFICE STUDDING STRUCTURE Eolfe A. Folsom, Burlingame, Califl, assignor to W. R. Ames Company, San Francisco, Calif., a corporation of California Application January 29, 1936, Serial No. 61,352
This invention relates to fireproof wall structures, such as used for interior building partitions and the like, and especially to a pressed or rolled sheet metal stud for use in building hollow fireproof partitions, and like Walls.
The object of the present invention is generally to improve and simplify the construction of hollow walls and interior partitions in the erection of buildings and like structures; to provide a sheet metal stud in the form of a channel, or the like, in which the web connecting the flanges of the channel is punched out at spaced intervals to decrease weight, said punched out portions forming openings for the passage of pipes, conduits,
wiring, etc., also providing openings for the reception of tie wires to secure metal lath, or the like, to the studs; and, further, to provide a sheet metal stud in the form of a channel, or the like, having flanges which are formed by bending or rolling and a forward portion which is punched out at spaced intervals to form a series of openings and angularly disposed truss members, said truss members and openings being flanges to increase the strength of the trusses and the stud as a whole.
The structural member forming the subject matter of the present invention is shown by way of illustration in the accompanying drawing, in which- Fig. 1 is a perspective view partially broken away and partially in section, showing the manner in which the lower ends of the studs are secured and also the manner in which metal lath are tied thereto;
Fig. 2 is a side elevation of the stud;
Fig. 3 is a cross section taken on line III-III Fig. 2;
Fig. 4 is a cross section taken on line IV-IV of Fig. 2. Referring to the drawing in detail, and particularly Figs. 1 and 2, a structural member in the form of a channel is disclosed, which is particu-' bending or rolling as the case may be. The web proper is punched out to form a series of openings shown at 4, 5 and 6, these openings being preferably triangular shaped as shown and being so positioned that the apex of each triangle is reversed with relation to each other. By this arrangement of the triangular openings and by properly spacing them a series of angularly disposed truss members 1 are formed.
The distance between the base of each triangular opening and its apex is approximately one 5 half the width of the web. Each opening is surrounded by a flange 8 and these flanges are disposed at substantial right angles to the surface of the web. The flanges 8 may be of any height desired but in most instances will be slightly less 10 than the flanges indicated at 2 and 3. By flanging the openings as described, the trusses 1 become channel-shaped in cross section, as shown in Fig. 4, and so does the metal of the web between the apexes of the openings and the flanges 15 2 and 3, and also between the bases of the openings and the flanges 2 and 3; in fact, the structural member as a whole becomes channel-shaped in cross section no matter in what direction it is cut or what portion of it is out. 20
This is important as it forms a structural member which is light in weight and of equal strength both in its chord section and web. A structural member of this character has other advantages besides being light in weight when com- 5 parison is made with strength, as it permits the construction of a fireproof hollow partition. It permits wire lath, or the like, to be readily attached by merely passing tie wires through the openings in the web, as shown at 9 in Fig. l. The 30 triangular shaped openings provide passages for the reception of pipes, conduits, wiring, and the like, and it, furthermore, forms a dead-air space both for sound and heat insulation.
The upper and lower ends of the structural 35 members may be secured in any suitable manner; one practical method being that of employing a channel-shaped member such as shown at B. This may be applied both at the top and the bottom of either and the structural members or 40 studs may be welded thereto, or they may be secured by merely bending the flanges of the member B, as shown at H), see Fig. 1.
While the stud here shown is of a channelshaped cross section, it is obvious that an I-beam 5 and other shapes are possible, and while it is described as used for interior partitions it is obvious that it may be made of heavier metal and as such might be used as a joist or rafter and possibly for floor beams, girders, columns, and 50 the like, and while this and other features have been more or less specifically described and illustrated, I wish it understood that various changes may be resorted to within the scope of the appended claim. Similarly, that the materials and 55 finish of the several parts employed may be such as the manufacturer may decide, or varying conditions or uses may demand.
Having thus described my invention, what I claim and desire to secure by Letters Patent is:-
A structural sheet metal stud consisting of a single piece of sheet metal and comprising a pair of spaced parallel channel-shaped members and angularly disposed channel-shaped truss mem- 10 bers connecting the parallel members and formed integral therewith and alternately reversely arranged and forming with the parallel members reversely disposed substantially triangular openings, each channel-shaped member being composed of a web portion and side flanges arranged perpendicular to the web portion and of a width of at least substantially as great as the width of the web portion, the flanges at the sides of the stud being continuous and the flanges at said openings being also continuous around said openings and stiffening the stud between the side flanges of the same.
ROLFE A. FOLSOM.