US1370741A - Tray - Google Patents

Description

C. E. GERBERICH.

TRAY.

APPLICATION FILED OCT-11,1919- 1,370,74.1 Patented Mar. 8, 1921 2 SHEETS-SHEET lfida/z Z 02". GARE/v05 E. GERBER/CH UNITED STATES.

PA ENT'oFFicE.

CLARENCE GERBERICII, OF AURORA, ILLINOIS,-. ASSIGNOR TO LYON METALLIC MANUFACTURING COMPANY, OF AURORA, ILLINOIS, A CORPORATION OF ILLI- nois.

TRAY.

Specification of Letters Patent.

Patented Mar. 8, 1921.

Application filed October 11, 1919. Serial No. 330,064.

To all whom itma/g/ concern:

Be it known that I, CLARENCE E. GERBE- RICH, a citizen of the United States, residing at Aurora, in the county of Kane and State of Illinois, have invented a certain new and useful Improvement in Trays, of which the following is a specification.

My invention relates to trays, boxes and similar open top receptacles especially those formed of sheet metal and intended for use under industrial conditions where the devices will be subjected to considerable strain and rough usage. The object of myinvention is to construct a tray in such manner that there will be no waste material or scrap and that each and every portion of the blank shall contribute in a highly efficient manner to the strength and durability of the article especially at the corners.

I accomplish my ob 'eots by the cons-truction illustrated in the accompanying drawings in Which' Figure 1- is a perspective view of the complete tray or pan. 7

Fig. 2 is a perspective view taken from beneath the tray, looking at one corner thereof and showing the lap at the top of the side previous to folding.

Fig. 3 is a sectional view onthe'line 33, Fig. 1.

Fig. 4 is a. sectional view on the line 44, Fig. 1.

Fig. 5 is a sectional view on the line 5-5, Fig. 1, and

Fig.6 is a face view of the blank.

Like numerals denote like parts throughout the several views.

The principal parts of the tray are the bottom 1, sides 2, 2 and ends 3, 3. The bottom is integral with the sides and with the ends, but the sides are severed from the ends by cuts indicated by the solid lines a, a, a, a, Fig. 6. These cuts run from the corners of the bottom section outward toward the edges of the side sections. They slant slightly toward the corners of the blank in order to give the finished tray a slight taper, although this is not essential, and the tray may have vertical sides without departing from the spirit of the invention. By referrin to Fig. 6 it will be evident that when tha blank is thus cut the end pieces will have extensions at each of their ends, said extensions affording stock which may be folded in the particular manner which I will now de scribe. i

lVhilethe precise order in which the folds are made may not be essential, it is possible and practical to proceed by first folding the corners of the blank along the dotted lines 1), 725 This makes a double thickness of metal which, as will later appear, comes both at the sides and at the ends of the tray and gives a corner bend of double thickness. Next the sidepieces and end pieces are bent to upstanding position, after which the extensions of the end pieces are folded around the side pieces as clearly illustrated .in Figs. 1 and'2. By bringing the lines'b, b in far enough toward the median line 0 of the tray, the double thickness of metal'will not all come at the sides of the tray, but part of it will bend around the corner and come at the ends of the tray, as illustrated at 5, Figs. 1 and 2. After the parts havethus been folded and preferably fastened by spot welding or riveting the upstanding margins 6 of the side pieces (see Fig. 2) will be folded outward and downward from the position shown in Fig. 2 to the positionshown in Figs. 1' and 5. This interlocks the parts as well as presenting a finished appearance and stiffening the sides of the tray. Handles are formed bybending outward, to an approximately horizontal position, the margins 7 of the end pieces. As the handles preferably extend from one side of the tray to the other there will be a portion 8 at each end which is of double thickness, due to the first back-folding along the lines 6, b. The resulting advantage is that the handles are more rigid and raw corners at their ends are avoided. It isv desirable also to form a half inch lap 10 at the outer edge of the handles for stifiening them and presenting a rounded edge.

Reference to Fig. 1 will show that the metal is used most advantageously and produces a tra having great strength and durability. ot only do the end pieces extend around to the sides of the tray thus making a continuous piece at the tray corners, but for a considerable portion of the vertical dimension of the tray, at the corner, the material is of double thickness. In fact, this double thickness comes at the upper portion of the tray Where the strainer leverage will naturally be the greatest.

ners are heavily reinforced and the material is located where it will do the most good.

It will also be noted that the extensions which overlap the sides of the receptacleare of substantial length and pass closely beneath the marginal flange 6, thus affording "a leverage for l'BSlStlIlgOHtWZtICl swing of the ends of the receptacle.

Having thus described my invention what- I claim as new and desire to secureby-Let ters Patent, is

1. A sheet metal tray formed from 2. rectangular blank having single cuts running from each corner of the bottom section outward to the top edge of the side piece, the cuts being'taken at a slight angle to permit the sides of the tray'to slant slightly out Ward, the end pieces consequently having extensions at their ends terminating in the sides of theblank, the outer corners of. the end pieces of the blank being folded back to lap against the outer surface of the end piece, and in the finished tray,the extensions being folded around the corners to the sides of the'tray, whereby outward pressure against the sides of the tray is resisted.

2. A structure asspecifiedinclaim l inwhich the double thickness due to the backfolding at the corners of the blank not only comes at the sides of the tray butalso to some extent at the ends'whereby the corners of the tray have continuous metal .ofdouble thickness rounding the corners for a portion of their height. V V

3. A sheet metal tray formed from; a rectangular blank havin single cuts running from each corner of the bottom section out-V ward to the top edge of the side piece, the

lcuts. being taken at a slight angle to permit the sides of the tray to slant slightly outward, the end pieces consequently having Hence the cor-.

of each handle.

extensions at their ends terminating in the sides of the blank the outer corners of the end pieces of the blank being folded back to lap against the outer surface of the end piece, and in the finished tray, the extensions being folded around thecorners to the sides of blank extending under aportion of each end 4. A sheet metal tray or tote box having 4 sides and ends which are integral with the bottom, the sideshaving marginal flanges '6 and the ends having extensions of substantial depth. which are of double thickness for such length, that .the double thickness comes both at the ends and at the sides, the said extensions passing for asu bstantial distance along the sidesof the box and in close'proxv imlty to the. said marginal flange,- whereby a leverage is provldedfor resist ng outward swing of the box ends.

5. A one piece sheet metal tray including a bottom, sides, and ends,extens1ons on ends folded back uponZthemselves on'a line atan angle to any marginal edge of said tray to provide portions of double thickness extending throughout a substantial part of the depth of said extensions, said extensions being folded in overlapping relation to the sides whereby'the corners and portions of both the sides and ends ad acent the corners are of double thickness, and means securing said sides and ends against relative outward movement. v

In witness whereof I have hereunto;s11b-' scribed my name.'- r

CLARENCE GERBERIOH.

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