Stirrup or hanger for floor-beams.

(Application filed May 17, 1900.) (No Model.)

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F/G.9.

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FIG. ID.

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WITNESSES:

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THE NORRIS PETERS CO.. ΡΗΟΤΟ-ϋΤΗΟ.. WASHINGTON, 0. C.

United States Patent Office.

JOHN A. BUTZ, OF PITTSBURG, PENNSYLVANIA.

STIRRUP OR HANGER FOR FLOOR-BEAMS.

SPECIFICATION forming· part of Letters Patent No. 666,918, dated January 29, 1901.

Application filed May 17,1900. Serial No. 16.960. (No model.)

To all whom it may concern:

Be it known that I, John A. Butz, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Penn5 sylvania, have invented or discovered certain new and useful Improvements in Stirrups or Hangers for Floor-Beams, of which improvements the following is a specification.

The invention described herein relates to io certain improvements in stirrups or hangers for floor-beams and blanks therefor; and the invention consists in so cutting or shearing a piece of sheet-steel as to produce a blank which by the subsequent bending or folding 15 of certain parts is transformed into a light but strong hanger or stirrup.

The invention is hereinafter more fully described and claimed.

In the accompanying drawings, forming a 20 part of this specification, Figure 1 is a plan view of my improved blank. Fig. 2 is a perspective view of a partially - folded blank. Fig. 3 is a perspective view of a completed hanger or stirrup. Figs. 4 and 5 are views 25 similar to Figs. 2 and 3, illustrating a modification. Fig. 6 is a view, partly in elevation and partly in section, of the stirrup or hanger shown in Fig. 3, the plane of section being indicated by the line VIVI, Fig. 7. Fig. 7 is 30 a sectional view of the same on a plane indicated by the line VIIVII, Fig. 6. Fig. 8 is a plan view illustrating the manner of cutting the blanks from a continuous strip of metal of a width equal to or greater than the length 35 of the blank. Fig. 9 is a plan view illustrating the manner of cutting blanks from continuous strips of a width equal to or greater than the width of the blank; and Fig. 10 is a view similar to Fig. 9, showing the manner 40 of cutting the blank for the form of stirrup shown in Figs. 4 and 5.

In the practice of my invention the blank is made of a width equal or approximately equal to the combined widths of the body or ,k wall of the stirrup and of the side wings iof. At one end the blank is provided tongues 2 and 3 in line with the portion 'l^ted to form the back wall of the stirL.nd with one of the portions 4 adapted m one of the side walls of the stirrup, Ague 2 being made of a width approxiy equal to the portion 1, which forms the depth of foot or supporting-piece desired in the finished stirrup. · The tongue 3 is made of a length sufficiently greater than the width 55 of the back plate to permit of its end being turned up outside of the other side wall of the stirrup. These tongues are separated by a cut on the line a of the bend made in the blank to form the sides of the stirrup. As it is not 60 necessary nor desirable that the sides 4“ of the stirrup should be made full width at their upper ends, diagonal cuts b are made in the portions 4 of the blank, said cuts extending from the edges of the blank to the junctions 65 of the lines to fold a and the line of fold c at the upper end of the portion 1 of the blank.

In forming the stirrup the tongue 2 is bent so as to stand at a right angle to the portion 1 to form foot 2^a, and the portions 4 are 70 folded on the lines a to form the side walls 4^aof the stirrup. The tongue 3 is then bent under the foot 2^a and its end up around against the opposite side wall 4^a, to which it is secured by rivets. Thus it will be seen that the foot 75 l^a is reinforced by a piece of metal integral at one end with one of the side walls and securely fastened to the other side wall.

To form the hook of the hanger or stirrup, the side portions 5 of the blank are folded 80 over onto the portions 1 and 6 of the blank. The portion 6 and the folded portions 5 are next bent on the line c and also on the line d, thereby forming the hook which engages the masonry of the wall or the beam, which 85 supports the floor-timbers. It is preferred when the stirrup is to be used in connection with brick or stone walls to bend the outer end of one of the portions 5 up and the ends of the other portion 5 and of the portion 6 90 down, as shown in Fig. 3, thereby forming a broader anchorage for the stirrup in the masonry. The inner ends of the portion 5, which are folded onto the back wall of the stirrup, are riveted in position, so that the 95 hook is strengthened at the bend by three thicknesses of metal. While the increased anchorage obtained by folding both portions 5 over to form part of the hook, as described, is desirable when the hook is supported by 100 masonry, one of the portions 5 may be omitted, as shown in Figs. 4 and 5, without reducing the strength of the stirrup at the bend beyond a safe margin of safety, and the outer ' 666,918 end of the portion 6 maj⁷ also be omitted, as there is little strain on the downturned portion of the hook.

It is characteristic of my invention that the 5 stirrup or hanger is so reinforced at points of greatest strain as to have a very large margin of safety, and it is also characteristic of the invention that the stirrup and its reinforces are so arranged and proportioned that the io blank can be cut either transversely or longitudinally from a sheet or strip of metal without any loss, except perhaps the extreme inner ends of the portions 5, which it is preferred to cut off, as the sharp points might in15 flict injury during the bending of the blank.