US2150795A - Joint arrangement - Google Patents

Description

l. BEcKwITH Y'JOINT'ARRANGEMENT L Marh 14, 1939.5

Filed Deo. 2, 1957 Jzenf Patented Mar. 14, 1939 y UNITED STATES PATENT OFFICE vJOINT ARRANGEMENT Louis I. Beckwith, Brookline, Mass.

Application December 2, 1937, Serial No. 177,733 i 2 Claims. (Cl. 211-135) This invention relates to animproved joint conupright, a clamp screw 6 being provided to clamp struction for rack assemblies, and more particuthe bracket at the desired vertical position on larly to the arrangement yof a supporting bracket the upright. The braeket 4 preferably iS provided and of a, Cooperating shelf which is associated With a Vertical Wall 1 Which is disposed Substan- 5 t with the bracket, tially tangentially to the opening 5,' and which is 5 The present invention is particularly suitable provided with a substantially vertical inner surfor employment in self-supporting, knock-down face 8. In practice. the bracket 4 may be a caststructures having separable joints, such as metal ing and the Wall 8 may have a Slight downward meat racks and other racks designed for heavy and inward inclination. The bracket iS 2.150 DIO- 10 loads where rigidity and prevention ofv play bevided with a second substantially vertical sur- 10 tween the parts are important requisites. face I0 TlliS Sli-rface may alSO have a Slight In accordance with this invention, an improved inclination as shown. Between the surfacesl 8 and bracket is provided, which is adapted to be Sel0 a horizontal web l5 is provided at the lower cured to an upright and which provides a vertical part 0f the bracket. and an integral boss or flange wall extending substantially tangentiaily to an I9 extends upwardly from the Web, the ends of 15 opening through which the upright may be eX.. this ange being arranged to cooperate with the tend, The bracket also is provided with a second surfaces 8 and I0 in defining narrow vertical slots. substantially vertical surface extending at right Preferably the ends Of the flange I9 llaVe a Slight angles to the vertical wan, there being a noridownward inclination, as shown in Figs. 1 and 4,

2o Zontal web between the wall and surface. A boss and the flange may preferably haVe a Curved Outer 20 or lug, which is preferably arcuate, extends up'- Surface arid may be 0f arcuate form. wardly from this web and has ends cooperating In accordance with this invention, a shelf is with the vertical surfaces in defining the Walls of Supperted by a bracket 4 at eac-h of its corners. narrow slots for receiving the depending marginal The Shelf may Preferably be fermed of metal and canges of the sneu. The shelf preferamy may may have depending metal anecs to be received 25 have a, marginal frame formed by angle memin the Slots provided by each bracket 4. FOI' eX- bers, and its depending marginal anges are ample, aS Shown, theshelf 20 may have frame preferably provided with protuberances in the members in the ferm 0=f metal angles 2|, which form of indents which engage in the slots of the are CODIleCted t0 each Other by rivets 22 at the bracket with a wedge1ike action An arrangecorners of the shelf. Suitable strips 23 of metal 30 merit of this character thus permits the iirm may be roveted to the horizontal flanges of opintertting engagement of the corners of the DOSite augleS, 0r arly Other Suitable webbing 0r shelf with the bracket while affording a construcsheet material may extend between the angles tion which is simple and relatively inexpensive to t0 provide the artile-Sl-lplJOI'l'filfliy Surface 0f the manufacture. Shelf- 35 In the accompanying drawing; In accordance with this invention, the depend- Fig. 1 is a top plan View of a bracket constructing ilangeS 0f the angles 2| are provided with ined in accordance With this invention., the Comer dents 24 Which are l'eCeVed ill the Vertical SlOtS 0f of the shelf whichis'supported by the bracket bethe braCketS 4 With a Wedge-like action. As

40 ing indicated in dot and dash lines; shown particularly in Fig. 2, each indent is formed 40 Fig. 2 is an elevational View of the bracket S0 that it provid-e5 all upwardly and outwardly assembly shown in Fig. 1, a portion of ythe shelf inclined Surface 25 and has a greater DFO- being shown in section; tuberance from the plane of the flange near the Fig. 3 is a perspective view of the corner porupper Dertien theree'f than near the lower por- 'tion of the shelf; and tion thereof. Accordingly, the indents may be 45 Fig. 4 is a perspective view of the bracket. received in the slots with a. wedge-like action,

The separable joint illustrated in the drawing thuS DreVehtIlg undesirable play between these is especially constructed for use in frames proparts as the shelf is fitted onto the bracket with vided with vertical uprights and horizontal the indents received in the slots in the manner 5o shelves supported between the uprights. The indicated. The lower surfaces of the horizontal 5o uprights preferably may be formed of round flanges 0f the angles may be Supported upon the metal tubing, such an upright I being shown. in upper parts Of the bosses I9, such an arrangement Fig. 2. Y being shown in Fig. 2.

In' accordance with this invention, a bracket 4 It is evident that the present invention affords may be provided with an opening 5 to receive the a simple and inexpensive arrangement permitting 55 the firm engagement of a metal shelf with a supporting bracket in a knack-down construction of the type described.

I claim:

1. Bracket comprising a metal member having an opening through which a cylindrical upright may extend and having a vertical wall substantially tangential to said opening, the metal of the bracket affording a substantially vertical surface extending inwardly at right angles to the inner surface of the Wall, there being a horizontal web extending from said vertical surface to the wall, and an arcuate ange extending upwardly from, said web but in spaced relation to the wall and surface to cooperate therewith in dening similar vertical slots extending for a substantial fraction of the height of the bracket, said slots being gradually tapered so that they are wider at their upper parts than at their lower parts.

` ing metal flanges extending at right angles to each other and received in said slots, each of said flanges being provided with indents yieldably tted into said slots with a Wedge-like action.

LOUIS I. BECKWITH.

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