US818689A

US818689A - Joist hanger or stirrup.

Info

Publication number: US818689A
Application number: US28037905A
Authority: US
Inventors: Frederick Lee Heughes
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-09-27
Filing date: 1905-09-27
Publication date: 1906-04-24
Anticipated expiration: 1923-04-24

Description

PATENTBD APR. 24

F. L. HEUGHBS. JOIST HANGER 0R STIRRUP.

APPLICATION FILED SBPT.27, 1905.

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' FREDERICK LEE HEUGHES, OF ROCHESTER, NEIV YORK.

JOIST HANGER OR STIRFKUF.

Specicaton of Letters Patent.

Patented April 24, 1906.

Application filed September 27,1905. Serial No. 280,379.

"o @ZZ wit/.m1, irl; may concern:

Be it known that I, FREDERICK LEE HEUGHEs, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Joist Hangers or Stirrups g and I do hereby declare the following to be a full, clear, and exact dcscription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention relates to improvements in joist hangers or stirrups intended to connect joists to beams; and it is intended to provide a double hanger which will suspend a pair ol' joists one at each side of the beam and in which the strength of the hanger is not in any way dependent upon the uncertain strength oil welding, but is directly governed by the shearing strength of a known number ot' rivets, bolts, screws, or pins.

In the manufacture oi' double hangers it has heretofore been common to i'orm part or all of the hanger ol one or more pieces of material in which the said pieces or the ends of the said piece are welded together, forming a welded joint, the strength of which weld is of very uncertain character and may vary greatly without the architect being able to ascertain such variations or to locate any dangerous weakness. By having the parts connected by rivets, bolts, screws, or pins, as will be hereinafter described, the strength of the structure may be directly measured by the shearing strength of any predetermined number of rivets, &c., and thus said strength will be positively known within reasonable bounds.

My invention will be understood by reference to the accompanying drawings, in which the same parts are indicated by the same letters throughout the several views.

Figure l is a perspective view showing the double hanger in full lines and the beam and joists in dotted lines. Fig. 2 is a plan view ot' the hanger shown in Fig. l, parts being broken away; and Fig. 3 is an end view of part of the device shown in Fig. l.

The hanger consists of two straps A, each made of a continuous strip of metal with a top piece ci. and dependent legs c, fitted to the size el' the beam. nected together by the stirrups B, which have a supporting-sheli` b, side ribs b', which may be tapered, as at b2, and side flanges b3, secured by the rivets c to the legs c of the These two straps are constraps A. These side ribs b may be perforated, as at 1),to spike the joist to the stirrup.

D represents a beam of any size or desirable construction, as the device is adapted for use with any suitable form of beam or girder, whether made oi' metal, wood, or other material. The straps A may be perforated, as shown at bo, and spiked to the beam D, it' desired.

Two joists E are indicated in dotted lines, one at each side of the beam l), one end ol each being supported in one oi the stirrups B. It will be obvious that the stirrups B may be raised or lowered by shifting the position otl the holes in the legs c of the straps A.

The stirrups are made by punching out the center section of one leg of an angle-iron and bending the two remaining end sections of this leg at right angles to the notch.

It will thus be seen that I provide a joisthanger which is provided with oppositelydisposed stirrups, each adapted to support a joist, on opposite sides of the beam. Moreover, the supporting-strips are made of a single piece of metal without any weld, and the stirrups are secured to said straps by an adequate number of rivets, bolts, pins, or screws whose shearing strength can be accurately calculated.

The advantages of this construction are its strength, ease of manufacture, and inexpensiveness. The strength may be accurately calculated and provision made for increased weights by increasing the number of rivets, bolts, pins, or screws used. Furthermore, the device may be made of any required size and out of flat iron bars and angle-irons, that can easily be purchased in the open market, which fact brings the expense down to a 1n inin iu m Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

1. A double joist-hanger comprising two bent straps adapted to go over the beam, with depending legs, and stirrups each having a supporting-shelf with angle-iron sides made integral with said shelf, with rivets, bolts, screws, or pins connecting said angleiron sides to said supporting-straps, substantially as described.

2. A double joist-hanger comprising two supporting-straps each composed of a flat iece of metal bent to 'fit the beam, and each provided with depending legs, a pair of stirrups, one on each side, each provided with a IOO right angles at each end of the notch, and Ineans for securing said stirrups to said straps, substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

FREDERICK LEE HEUGI-IES.

Witnesses:

J. A. YOUNG, CHAs. R. KING.