US1875141A - Tiering lug - Google Patents

Description

Aug. 30, 1932. J POWELL 1,875,141

TIERING LUG Filed Jan. 7, 1931 Patented Aug. 3%, 1932 gran g nres retain rria T: n munn J. POWELL, or Iran ans-1o, onto, nss rsnon TO THE POWELL PRESSED STEEL COMPANY, on HUBBARD, onro, n CORPGEATION or 01110 rrnnnve LUG 'Ap plic'ation filed January 7, 1931. Serial No. 557,219.

' floor.'- The elevator isthen caused to descend Thisinvention relates to improvements in tieringlugs for'tiering boxes, that is to say lugs adapted to insure proper alignment of boxesistacked one above another. The invention is intended primarily for application to sheet steel boxes; employed in factories, freight terminals, and warehouses for handling andstoring goods ;of various kinds. Often times these boxesare mounted upon elevated platforms, called lifttruckplatforms, for the reason that the elevator of a lift truck may be projected thereunden, The elevators of such trucks are movable to a height 'offrom six: to eight feet. The stacking or tiering ofa series of box platforms,

that isboxes with elevated bottoms, may be accomplished by the use of such a truck. The platform .ef the". truck; is projected beneath the bottom or platform of a box, tliqtruck 1 platform elevated to a sufficient he1ght and the truck manipulated to bring the box there? on directly above a box standing upon the far enough to deposit its box upon the first box, when the "truck-platform is withdrawn by backing out the truck. Then a third box is liftedby the'truclr toa greater height and deposited on thesecond in the same manner, and so on. iBoxes of this kind are-tiered three to five high by the use of such a truck; The reverse operation is'followed when astacl; is to be taken down again. Another method is to place one box on top of another by the use of a crane, and to build up the stack in this manner. In thelatter case the boxes need not have elevated platforms.

One of the objects of my invention is the provision of a tiering lug for use upon tiering boxes, which shall be economical of material, easy to construct, and capable of secure attachment to the box by welding only.

Another object of the invention is the provision of a lug of this character adapted to seat itself upon the box at two separated points, whereby strains transmitted to the lug may be very effectively absorbed by the box wall.

that embodiment of the invention which, for

the purposes of the present application, I have illustrated in the accompanying draw ing, in which Figure 1 is an elevational view of a plat-' form box embodying the invention, certain of the parts being broken away and shown in section in order to more fully illustrate the. construction.

Fig. 2 is a fragmental plan View of the same.

Fig. 3 is an end view of the box shown in Fig. 1, and

Fig. 4 is a fragmental vertical sectional view taken substantially on the line 44 of Fig. .1, showing on a larger scale the tiering lug and its attachment to the box.

in the drawing 1 have shown a platform consisting of a table portion 10 and sidewalls 11, the entire platform being supplied preferably-with strengthening corrugations ex tending transversely and protruding clownwardly and inwardly. The lower edges of the walls 11 may be bound with channel runners 12 which serve to convert the platform into a skid or sled.

The table portion 10 of the platform constitutes the bottom of the tiering box, the side walls of which may be formed from one or more pieces of sheet steel. In the box herein illustrated the complete box, aside from the bottom, is formed of a single sheet which is firstcorrugated and flanged at its top and bottom edges, then bent into rectangular shape, and the end edges welded together along the line 13. This joint may be reen forced if desired by the use of a flat or corrugated strip 1 extending along the seam on the inner or outer side thereof and welded at intervals to the two ends of the sheet.

he corrugations in the side walls of the box, numbered 15 in the drawing, preferably extend outwardly and are spaced apart, leaving flat wall portions 16 between the corrugations. At the bottom the wall portions are flanged inwardly as indicated at 17, afforda goon surface for welding the box walls to the bottom 10. At their upper edges the wail members are provided with a ledge 18 which I prefer to form, as shown in the drawing, by fianging the metal outward horizon I tally and then bending it under and back and downwardly against the side wall. The up-. per. edge of the box is thus rendered quite rigid. I The tiering lug is indicated generally in Y the drawing by the reference characterA.

It is a heavy metal stamping which in shape v resembles a chair. I prefer to employ four such stampings for every box, two on a side.

However a different number may obviously be used and they maybe arranged differently than herein shown if desired. For some] kinds of boxes it may be desirable to employ tiering lugs at the ends-as well as at the sides. 7 Each lug has an upstanding or back porir tion 20, a horizontal seat portion 21 anda forward leg portion 22. The back portion is inclinedoutwardly more or less so as to direct the superposed box into proper position when it is lowered onto the seat portion 21 of a tiering lug. The latter portion rests directly upon the ledge 18, affording-means for transmitting directly downward into the box wall the load of the superposed box or boxes. The leg portion 22 is of the proper ranged at an angle to the vertical, as shownv in Fig. 4, partly in orderto make it engage the-corrugation. 15 behind'the flush inner surface of the wall, whereby it can transmit pressure downwardly. into. the wall, and

partly iIlj'OI'deI to widen the seat portion 21. The attachment of the lug to the box is effected preferably "by arc-welds 23..an d 24' running the full widthof the lug. o

When boxes of the particular type herein illustrated are tiered with my tiering lug, the

runnersl2 rest uponthe seat portions'Ql of .the'lugs on the box next beneath. The contents of each box are therefore 1 accessible, provided the articles are small enough to be boxthrough the space beneath the platform 10 of the box next above. however applicable to Boxes without platforms, in which event the bottom of each boxforms a lid for the box next beneath.

' In the foregoing description I'have necessarily gone somewhat-into detail in order to explain fully the particular embodiment of The invention is.

ing portion at one side of said loadereceiving portion, and a lower portionextending downsupporting and lower portions of said lug being attached to the box. 2. In combination with a metal tiering box,

wardly from the other side thereof, the load a chair-shaped tiering lugseated upon the up- I per edge of said box, said lug being welded to the upper edge of the box and to theside wall thereof at a point spaced, from said upper edge.

' 3. In combination with a metal tiering box i having a horizontal ledge at the top thereof, r a chair-shaped tiering lug having its seat ,por-

tion seated upon said ledge and welded thereto, and having a forward leg portion extending downwardly and welded at its loweredge to the wall of the box. 7 r .7

4:. In combination'with a metal tieringbox, having a shoulder a short distance beneath the upper edge of the 'box,;a chair-shaped tiering lug having its seat portion seatedv upon the upper edge of the box andwelded I thereto, and having a forward leglportion j bearing: upon said shoulder 1 and welded Q9,

thereto.

5. In combination with a metal tiering having an integral ledge atfthe top thereof, a' chair-shaped tiering lug havingits seatl 9 portion seated upon said'ledgeand welded to one edge thereof, and having a forward legportion extending downwardly over the op? posite edge of the ledge and 'welded to the! box wall.

' '6. In combination-with a metal tieringbox V having a 'horizontally running corrugation,

near the top edge thereof'providing a shelf presented toward the interior of the box, a

chair-shaped tiering lugfacing inwardly and having its seatportion seated upon the upper v edge of the box and welded thereto, and having a forwardleg portion extendingdowm' wardly to and welded upon said shelf.

. In testimony whereof, I hereunto a'flixmy e. f I signature. lifted out by a workman from one end of the ELM-ER. J. Pow-ELL.-

1 the invention herein illustrated, but I desire it"to be understood that such detail disclosuresare not to be construed as amountingto limitations, exc'eptas they may be in- 1. In combination with a metal tiering be: having a ledge along its horizontal top surface, a tlerlng lug having a load receiving portion seated uponsaid ledge, an upstand-

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