US2565875A - Ribbed metal cross bridging - Google Patents

Description

8, 1951 F. J. MUSACCHIA 5' 2,565,875

' RIBBED METAL CROSS BRIDGING Filed April 16, 1949 2? INVENTOR.

[7546? (f MJMCZH X z Patented Aug. 28, 1951 UNITED" STATES PATENT'I 5 mm;

. 2,565,875 RIBBED METAL onoss BRIDGING Frank J. Musacchia, Jamaica, N. Y.

Application April 16, 1949, Serial No. 87,985

1 Claim. 1

This invention relates to a ribbed metal cross bridging.

It is an object of the present invention to provide a ribbed metal cross bridging adapted to be extended between building joists which are readily adaptable at their ends to the joists depending upon the location of the ends upon the joists and which are bent into position on the joists as they are nailed to the same so that the flattened ends will lie flush with the joist faces while the bridging is effected by the ribbed portions.

Other objects of the present invention are to provide a ribbed steel cross bridging which is of simple construction, inexpensive to manufacture, easy to adapt to the building structure, easy to install, strong, durable, rigid and efficient in operation.

For other objects and for a better understanding of the invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, in which Fig. 1 is a perspective view of a single bridging member.

Fig. 2 is a transverse sectional view taken on line 22 of Fig. 1.

Fig. 3 is a perspective view of the cross bridging as effected between floor joists.

Fig. 4 is a sectional view taken through the floor and the joist thereof and looking in elevation upon the cross bridging members.

Fig. 5 is a side elevational view of the cross members as applied to floor joists in a slightly different manner from that in which they have been applied in Figs. 3 and 4.

Fig. 6 is a perspective view of stud joists with the ribbed crossing members applied to the same in two different ways.

Fig. 7 is a sectional view taken on lines l-1 respectively of Figs. 3, 4 and 5.

Fig. 8 is a sectional view taken on line 8-8 of Fig. 6.

Referring now to the figures, I0 and H represent respectively the crossed ribbed members. Each of these ribbed members is made out of steel and has flat end portions l2 with a plurality of nail openings I3 therein. These nail openings are longitudinally spaced from one another in order to adapt the member to the difierent spacings of joists. Between the flat end portions l2 are ribbed portions M. This ribbing is effected by an angular upsetting of the metal and flaring outwardly from the middle of the member. The members In and H are arranged between the joists as shown in Fig. 3 to cross one another and wherein the flat portions I2 at the ends are bent, as indicated at 16, to lie upon the top edge of the joists I! and at their lower ends, as indicated at I8, to lie upon the bottom edges of the joists. The bending of the flat end portions is effected as the members are connected to the joists. The root portions will remain unbent while effecting the bending of the ends. The members, by engaging one another, will prevent the same from lateral shifting through the joists. In order not to interfere with the flooring, as indicated at l9, Fig. 4, the upper ends of the members can be secured to the vertical side faces of the joists, as indicated at 2 I. The lower ends can be attached to the under edges of the joists in the same manner as shown in Fig. 3.

In Fig. 5, both the upper and lower ends are attached to the inner faces of the joists, the lower ends are bent as indicated at 22.

As shown in Fig. 6, the members 18 and l l are applied between stud joists in still a different manner wherein the bent end portions 12 extend vertically in the direction of the joists and the members lie wholly between the sides of the joists, the bent end portions l2 lying flush against the inner sides of the joists. These members can be likewise connected to the stud joists in the same manner as they are connected to the floor joists as shown in Fig. 3, the end portions l2 lying flush with the respective edges of the joists and the members crossing one another. Such arrangements as just described and as in Fig. 3 are used where the joists are not to receive boarding on their edges.

It should be apparent that these members can be easily installed and that they will have ample strength as a result of the angle throughout the major portion of the member. These members are fireproof and have little shrinkage.

As the nail is applied, the end portions l2 will be bent down upon the joist edges.

It will be apparent that there has been provided a bridging which can be readily connected to the joists by small nails and wherein the bridging members are not impaired as are the wood bridging members which often split and become dislodged from the joists. These members are fireproof and consume little space. It will also be apparent that these members can be formed by a simple stamping operation from strip metal.

While' various changes may be made in the detail construction, it shall be understood that such changes shall be within the spirit and scope of member may be fitted to joists of irregular spacing.

FRANK J. MUSACCHIA.

REFERENCES CITED The following references are of record in the file oi this patent:

UNITED STATES PATENTS Number ,Name Date 11, 1,656,741 Lane a- Jan. 17, 1928 Smith et al Mar. 20, 1928

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