US2122698A

US2122698A - Beam and the like for building construction

Info

Publication number: US2122698A
Application number: US80089A
Authority: US
Inventors: Rafter Albert
Original assignee: RAFTER MACHINE Co
Current assignee: RAFTER MACHINE Co
Priority date: 1936-05-16
Filing date: 1936-05-16
Publication date: 1938-07-05
Anticipated expiration: 1955-07-05

Description

y 5, 1938-v A. RAFTER BEAM AND THE LIKE FOR BUILDING CONSTRUCTION Filed May 16, 1936 ATTORNEY Patented July 5, 1938 UNITED STATES PATENT OFFICE Albert Rafter,

CONSTRUCTION Glen Ridge, N. J., assignor' to Rafter Machine Company, Bellevillc, N. J., a partnership composed of Albert Rafter and John O. Rafter, Jr.

Application May 16, 1936, Serial No. 80,089

gig 3 Claims.

This invention relates to improvements in metallic beams, studs and rafters and the like for use in building construction.

,7 It has been found that studs and rafters and the like formed from sheet metal are well adapted for use in building constructions in places where wooden rafters have been heretofore used. The rafters obviously are superior to the wooden rafters in that they can withstand greater strains and are fireproof.

It is an object of this invention to provide a beam, stud or rafter formed from sheet metal which is of relatively light weight and of great strength. The rafter is formed from spaced I 5 metal plates provided with interlocking means.

A further object is the provision of a beam, stud or rafter for building construction which is made from sheet metal, and so formed that the metal is distributed to points where .it is most needed and eliminated at points, such as along the longitudinal center line of the rafter, where it is not essential, thereby enabling a considerable decrease in the weight and cost of the stud or rafter.

These and other advantageous objects, which will later appear, are accomplished by the simple and practical construction and arrangement of parts hereinafter described and exhibited in the accompanying drawing, forming part thereof, and 3a in which: I

Fig. 1 is a perspective View in section of a stud or rafter embodying my invention,

Fig. 2 is a side elevational view of a stud or rafter embodying the invention,

5 Figs. 3, 4, 5, and 6 are perspective views, in section, of modified forms of the invention, and

Fig. 7 is a sectional view showing details of interlocking means between sections of the stud or rafter.

40 Referring to the drawing, in Fig. 1 a building stud or rafter is shown to comprise a pair of metal plates I and 2, each of which is provided with a plurality of spaced apertures 3 surrounded by cylindrical inwardly directed flanges 4 and 45 5, respectively. The flanges 4 on plate I telescope in the flanges 5 on plate 2.

Plate I above the cylindrical flanges 4 is directed upwardly, then bent outwardly at 6 and downwardly to provide a groove at I, then up- 5 wardly at 8, which portion is bent at right angles to itself to provide a flange 9 which is bent back upon itself and then downwardly parallel to the portion 8 sufficiently to enter the groove I and then bent at right angles to provide a portion I0,

55 the edge of which is bent downwardly at I I to engage groove 1' in the plate 2. The plate 2 is formed substantially in the same manner as plate I with the exception that it is not provided with portions I0 and II above described.

Between the flanges 9 and the portions I0, if desired, there can be inserted a slab of cementitious material or similar material adapted to receive nails, screws and the like.

In Fig. 3 is shown a modified form of invention in which both plates I4 and I5 are similar. Each plate is provided with inwardly directed cylindrical flanges I6 which telescope as above described and the plates are bent upwardly at I8 and then at right angles thereto to provide a flange I! which is bent back upon itself and downwardly parallel to the portion I8 of the plate and then inwardly at right angles to provide a portion I9 parallel to the flange II. The structure of the plate I4 is similar to that described with reference to plate I5.

The free edge of portion I9 of plate I5 is bent back upon itself and then at right angles thereto to form a portion 20, and then again at right angles to the portion 20 to provide a portion 2| which is bent back upon itself. The free edge of the portion I9 of plate I4 is bent over and parallel to the plate I9 and then back upon itself at 23 to provide a portion which opposes the portion 22 of plate I5, thereby providing means for interlocking the two plates together to prevent separation thereof.

A slab of cementitious or other material can be inserted, as above described, in the space between portions I9 and the flanges I1.

In Fig. 4 is shown a modified form of the invention in which the walls and 3| are bent outwardly at 32 and then back upon themselves at right angles to the walls to provide flanges 33, the free edges of which are bent about each other i to provide an interlocking means as above described and shown in Fig. 7.

In Fig. 5 is shown a further modification in in which the wall 35 is bent outwardly at right angles thereto to provide a flange 3B. The wall 31, parallel to wall 35, is bent outwardly at right angles thereto to provide a flange 38 which is. bent back upon itself and crimped to provide a, plurality of ribs 39 and then bent over and around the flanges 36 to interlock the walls 35 and 31 together, to prevent separation thereof. The ribs 39 also serve as means for properly spacing the walls. It is of course understood that walls 35 and 31 are provided with telescoping cylindrical flanges as has heretofore been described.

The lower edge of the rafter shows the flange 3 tion of the plates.

of the flanges are then bent about each other to;

provide interlocking 'means such as above described and shown in Fig. '7. The plates are each provided with strengthening ribs 43 lhich'sp'ace the plates and at the same time provide rigidity to the structure. a

In the above description, inasmuch as the upper edge and lower edge of each of the studs and rafters are of identical construction, only one edge has been described. i

m the above description, it will be seen 'jthat there has been provided a simple and effective metal stud and rafter of considerable 'strengthfor use in building construction. The? metal stud and rafter herein describedf can be well used in places where wooden studs and rafters have heretofore been used, sueh as in the building of homes, dwellings and the like.

The stud, and rafter is of light weight, and is adapted toi receive nails and screws in'mulch the sarhe manner-as wooden studs and raftersi The studs and rafters herein disclgsed are made of spaced parallel plates,'and the structure described which includes the :telescoping cylindrical flanges prevents longitudinal and vertical displacement of the plates; and the interlocking means prevents lateral displacement or separa- The structural members are well adapted for use in dwellings and the prov n of a plurality of spaced apertures obviously facilitates the electrical wiring and obviates the.

necessity of drilling holesas heretofore has been necessary in wooden beams. a

The foregoing disclosure-is to be regarded as descriptive and illustrative only, and not as restrictive or limitative of the invention, of which many em'podiments may be constructed including many modifications, without departing from the general scope herein indicated and denoted in the claim as new and desire to secure by Letters Patent, is: i

1. In a structural member for building construction, a pair of spaced plates provided with a plurality of spaced apertures, inwardly directed flanges surrounding said apertures and integral with said plates, the flanges on one plate being positionedWithin the flanges on the other plate, one of said plates being bent outwardly and upwardly to provide a portion parallel to the plate, said portion having an inwardly directed *right angular flange'bent back :upon itself and downwardly parallel to said portion, the other plate being bent in, a similar manner and having the downwardly directed part of the flange parallel to the portion parallel to the plate again bent at right angles to said-plate' and extending to the first mentioned plate, at which point it is bent downwardly to form an interlock to prevent separation of said plates. 1

2. In a structural member for building construction', a' parrot spaceiplates provided with a plurality of spaced apertures','inwardly directed flanges surrounding said 'apertures and integral with said plates, theflanges cnone'plate'being' positioned within the flanges on the other plate, each of said plates' 'bein'g bent outwardly. and up} j vardly to provide a portion spaced from and parallel to said plates, said portion having an inwardly directed right angular flange, said flange being bent back upon itself and downwardly parallel to said portion and then at right angles thereto, the flanges on each plate being provided with interlocking means to prevent separation of said plates. r A

. 3. In Ta structuralmember for building construction, a pair of spaced plates provided a plurality of spaced apertures, inwardly directed flanges surrounding said apertiires andintegral "with said plates, thefianges on one plate engaging the flangeson the otherfplate, each of said plates 'being bent outwardly and upwardly to provide a Q itself and downwardly parallel to said portion and then at right angles thereto, the flanges on each plate being provided with interlocking means to prevent separation of said plates. V

. ALBERT RAFTER.