US760511A - Girder and joist connection for posts. - Google Patents

Description

No, 760,511. PATENTED MAY 24; 19,04. A. s. ALSGHULER & s. J. ADLER. GIRDBR AND JOIST CONNECTION FOR POSTS.

APPLICATION FILED DEOI19. 1903.

N0 MODEL.

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UNITED ST TES Patented. May 24, 1904.

PATENT OFFICE.

GIRDER AND \JO|ST CONNECTION FOR POSTS.

' srnclnrcarrcn forming part of Letters Patent No.760,511, dated May 24, 1904.

Application filed December 19, 1903- Serial No. 185,845. (No model.)

To all whom it may concern.-

Be it known that we,ALFRnn S. ALscHULnR and SIDNEY J. ADLER, citizens of the United States, residing at Chicago, in the county of Cool: and State of Illinois, have invented a certain new and useful Improvement in Girder and Joist Connections for Posts, of which the following is a full, clear, concise, and exact description.

Our invention relates to building construction; and its object is to provide a simple, cheap, and effective connection for supporting girders and joists where they abut against vertical posts.

5 We will describe in detail certain preferred embodiments of our invention by reference to the accompanying drawings, giving in the appended claims a summary of the parts, improvements, or combinations considered to be novel.

Figure 1 is a side view of a post, girder, and joist connection designed to support the joists with their lower edges in the plane of the upper edges of the girders. Fig. 2 is a side view at right angles to Fig. 1. Fig. 3 is a perspec tive view, and Fig. 4 is a sectional plan vieW.

The same letters of reference are used to designate the same parts throughout the several figures.

The girders a a rest upon a cap provided upon the top of the post I). The ends of said girders abut against the opposite sides of the post 6 of the next higher floor. V Said post 6' rests upon the cap of the lower post 6. It is usual in building construction to support the joists by laying them across the girders a a; but where the joists come in line with and abut against the post some means must be provided for supporting the joists at the post, and our invention contemplates an improved form of connection for the posts, girders, and joists which will be strong, effective, and at the same time cheap, simple, and easily applied.

In accordance with our invention we provide a metal collar closely surrounding the post and resting upon the tops of the girders, while the joists rest upon the projecting ledge formed by saidcollar. The construction of the collar is preferably as follows: Side bars 5 ffof angle-steel are provided, said side bars being of L-shaped cross-section,with the vertical webs lying between the sides of the post and the ends of the abutting girders and the hori zontal flanges of the side bars resting across the tops of said girders. In other words, the angle-bars form metal corner-pieces tittingthe upper corners at the ends of the girders." The ends ofthe side bars project beyond the edges of the post at each end, and cross-pieces g g are provided, lying across and uniting the projecting ends of said side bars. These crosspieces are preferablyformed of angle-steel, as shown, having horizontal flanges resting upon or overlapping the projecting ends of the side bars and fastened thereto by bolts, rivets, or 5 the like. The vertical flanges or Webs of said cross-pieces are adapted to lie against the sides of the post. In other Words,the angular crosspieces form metal corn er-pieces adapted to receive and support the lower corners of the 7 joist ends. It is not essential, however, that the cross-pieces be made of angle-steel nor that they be provided with vertical flanges lying against the girder ends. They may be made, if desired, of cast-iron, and any suitable form may be adopted, supported in any desired way by the projecting ends of the side bars. The form shown,however,is preferred.

The post-cap shown in the drawings is made the subject-matter of a separate application of Alfred S. Alschuler, SerialNo. 191,298, filed January 30, 1904.

The corners of the girders and joists are preferably recessed or cut away, as shown, so that the steel angles may fit into said recesses, leav- 5 ing the surface of the joist or girder, as the case may be, flush with the outer surface of the metal.

It is evident that the forms of the parts herein shown may be varied to a considerable 9 extent Without departing from the spirit of our invention, and we do not desire to be un derstood as limiting ourselves to the precise construction shown; but,

Having described thepreferred embodiments of our invention, we claim as new, and desire to secure by Letters Patent, the following:

1. A joist-support comprising side bars of angle-steel, having vertical webs adapted to I00 lie against the sides of a post, and horizontal outwardly-projecting flanges adapted to rest upon a support, cross-pieces uniting the ends of said side bars, adapted to receive and support the ends of the joists, and means for securing said side bars and cross-pieces together.

2. In building construction, the combination with a post, of girders abutting against said post on opposite sides thereof, means for supporting said girders, and a metal collar closely surrounding said post, said collar having thin horizontal flange portions adapted to rest upon and be supported by the ends of the girders, and vertical stiffening Web portions adapted to lie against the sides of the post, and joists abutting against the post at an angle to said girders, said joists resting upon horizontal flange portions of said collar, whereby the joists are supported with their lower edges in a plane substantially coincident with the upper edges of said girders.

3. 1n building construction, the combination with a post, of girders abutting against said post, on opposite sides thereof, and means for supporting said girders, a metal collar closely surrounding said post and resting on the top of said girders, and joists resting upon the projecting ledge formed by said collar.

4. A post-collar for supporting joists, comprising metal side bars of L-shaped cross-section, having the vertical webs adapted to lie against the sides of a post and the horizontal flanges adapted to rest upon the corners or transverse upper edges of the ends of the girders, said side bars projecting beyond the post on either side thereof, and cross-pieces uniting the projecting ends of said side bars and forming ledges adapted to support the abutting ends of the joists.

5. The combination with a rectangular post, girders abutting against opposite sides of the post and means for supporting said girders, of a joist-supporting-collar surrounding said post, said collar comprising angle-bars ff having the vertical webs thereof lying against the sides of the post and the horizontal flanges thereof resting across the ends of the abutting girders, said side bars projecting beyond the post at either end, and cross-pieces lying across and uniting the projecting ends of said side bars, means for fastening said side bars and cross-pieces together at their overlapping corners, and joists abutting against opposite sides of the post at an angle to said girders and resting upon said cross-pieces, whereby the joists are supported with their lower edges substantially in the same plane with the tops of the girders.

In witness whereof We hereunto subscribe our names this 17th day of December, A. D. 1903.

ALFRED S. ALSCHULER. SIDNEY J. ADLER. Witnesses:

DE WITT O. TANNER, IRVING MACDONALD.

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