US291192A - Support for beams and girders - Google Patents

Description

v (No Model.)

P.H. JACKSON. SUPPORT FOR BEAMS AND. GIRDERS.

Paten ted Jan. 1

UN iTE STATES ArEN'r @rmcn.

SUPPORT FOR BEAMS AND GIRDERS.

SPECIFICATION forming part of Letters Patent No. 291,192, dated January 1, 1584.

Application filed October 25, 1983. (N model.)

To aZZ whom, it may concern:

Be it known that I, PETER H. J AOKSON, of the city and county of San Francisco, and State of California, have invented an Improvement in Supports for Beams and Girders; and I hereby declare the following to bea full, clear, and exact description thereof.

My invention relates to an improved con nection and support between girders and beams which meet them at" right angles, and at points intermediate between their ends.

It consists of independent wrought iron plates, which extend across the girder or girders, and also over the end of the beam, above and below, and a wrought-iron clamp or band, which surrounds the end of the beam and the plates, together with bolts, wedges, and check pieces, all of which will be more fully explained by referencetotheaccompanying drawings, in which Figure 1 is a transverse section of two beams lying side by side, forming a girder, with a beam abutting against one side of one beam and the plates and clamps. Fig. 2 is a transverse section of the abutting beam and the plates, showing the side of the girder and a view of the band and the check-pieces. Fig.

3 is a view showing the manner of securing a single top plate. Fig. 4 shows side bolts in place of a surrounding band. Fig. 5 shows the top plate with flanges clasping the end of the abutting beam. Fig. 6 is a side "iew of same.

In my patent of June 12, 1883, I have shown a beam abutting against a girder and supported by a cast-iron shoe having a socket to receive it, and arms extending over the girder. In my present construction I dispense with the cast-iron shoe with tongues forming a part'of it, and make a lighter and adjustable construction.

A A is a girder, of which there may be one, two, or more beams, and B is the abutting beam.

0 O are wrought-iron plates, of sufficient thickness and width to withstand the strain. These plates extend across the girder and to a short distance upon the end of the beam, one above and one below. A strong wroughtiron band, D, fits over these plates, and may be shrunk or wedged upon them, so as to clamp them firmly to the end of the beam. Bolts E pass through the girders, and thus hold them firmly in place. If desired or nec essary, wedges or keys F may be driven in between the beam and the plates, so as to give the plates an even bearing and make them firm and rigid. Check-pieces G are fitted to the sides of the beam, and extending flush with the top and bottom of the beam, to which they are bolted, they fill the space at the sides inside the band D. The girders, when two or more are placed side by side, may have the intermediate diaphragms, H, to bind them to gether and distribute the weight, as shown in my former patent. If the load is light,-a single plate, 0, may be employed, extending along the top of the beam and girder, being secured by a band, as before described. and having the opposite end bent into a hook, which clasps the top flange of the girder at the opposite side, as shownin Fig. 3. In some cases the band D may be d'ispensed with and its place supplied. by the bolts I, which pass through the plates 0 at each side of the beam B, and also through or at the side of the checkpieces G, as in Fig. l.

Fig. 5 shows the top plate, 0, extending across the girder, as before described, and having that portion which extends above the abutting beam B provided with flanges c 0, which are folded overthe edges of the beam, so as to clasp it. A bolt, (Z, may pass through these flanges and the web of the, beam, to secure the plate firmly, and the spaces between the flanges and the beam may afterward be filled with lead cement or any substance which will form a solid joint. 7

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is I 1. In combination with girder A A and abut-ting beam B, the independent wroughtiron plates extending across the girder and above and below the beam, and a clamp, as means for securing the end of the abutting beam and the plates together, substantially as herein described.

The girder A A and abutting beam B, in

combination with the plates (J and flanges to tween the end of the beam and the bolts or secure them to the end of the abutting beam, clamp, substantially as herein described. 10 substantially as herein described. In witness whereof I have hereunto set in y 8. The girder A A and abutting beam 13, in i hand. combination with the plates 0, extending across the girder and upon the end of the beam above and below, with means for securing and clamp- .PETER I-lf. JACKSON. \Vitnesses:

S. H. Notiasii,

ing said plates, and cheek-pieces fitting be- I .T. H. BLOOD.

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