claim: 1. A carton of sheet material comprising dou65 ble bottom layers, one of the bottom layers having front and back walls connected thereto, the other bottom wall having end walls connected therpto, each end wall being of an integral piece having a triple thickness of the material forined 70 by two successive outward folds essentially parallel to the plane of the bottom and presenting said folds as smooth upper and lower edges and with the cut edge located within the triple thickness, the lower fold being spaced from the botthe entire inside height of the carton, with an 75 tom to provide a hand grip, the front and rear

2,"8,174 walls having flaps fit@ing agab2st and secured to the end waM, the end walls projecting above the said front and rear walls and the flaps thereof, and a cover having marginal flanges wbich In closed condition engage the upper edges of the 5 front and rear walls and the flanges thereof and with the end flanges of the cover overlapping the upper portions of the end walls. 2. A carton as in claim 1, in which each end wall has a hand-hole aperture therein with its 10 upper edge substantially at the level of the said lower fold. 3. A carton of sheet material comprising double bottom layers, one of the bottom layers being formed integrally iii a first integral structure 15 with a front wall and a rear waU, said front and rear walls having their upper edges below the top of the carton; a rear flange, a cover top, and a front flange also formed integrally with the said one bottom layer, the said first integral 20 structure also having end flaps on the front and rear walls and on the bottom and on the cover 'wp; 'the other bottom layer being formed integ,-ally with end walls, the upper edge of each ar@d wall being located above said upper edges 25 and formed by a flrst fold from which a part of the said second integral structure extends downward to a second fold from which a further part thereof extends upwardly between the said first @old and the main part of the end wall, said sec- 30 ond fold being located above the bottom to provide a hand grip, said first and second folds providing smooth edges at top and bottom; said flaps on tl,.e front and rear:walls axid bottom 5. A carton as in claim 3, in which a tray of water-proof material has its bottom positioned between said bottom layers, its upturned ends positioned outside the end walls and within the end flanges of the bottom of said first integral stnicture, and its upturned front and rear Positioned imide the front and rear walls. 6. A carton as in claim 3, In which each end wall has a hand-hole aperture therein with the upper edges of the same substantially at the level of said lower fold, and including a tubular liner having side and end walls fitting closely Inside the said side and end walls connected to the bottom layers, the top of said liner extending above the 'upper edges of the front and rear walls to stiffen the carton at the line of abutment of the front flange upon the front wall and the hinge line at the connection of the rear flange with the rear wall, and extending upwardly substantially to the level of the tops of the end walls and constituting loading walls of substantially the height of the carton interior, said liner present. Ing closed wall areas opposite each said handhole a,aerture. 7. A,carton as in claim 3, and including a reinforcing sheet located Inside the cover top and fitting agginst the same, and havhig end flanges fltting inside the end flaps, and means effective for securing said reinforcing end flanges to said cover top flanges and said ilaps. JACK R BELSWOER. BEFERENCES CITED -z.'.he following references are of record In the being fitted against and outside of the end walls 35 fUe of this patent: and secured fixedly thereto, the front and rear flanges being secured at the corners of the cover U.NITE D STATES PA7EN7S top to said end flaps; said flanges and flaps conNumber Name Date nected to the cover top being In abutting rela974,527 Blis s -------------- Sept. 25, 1934 tion to the upper edges of said front wall and 40 2,246,097 31leges :------------ June 17, 1941 said end flaps in the closed condition of the 2,324,905 Chambli ss ---------- July 20, 1943 container, and said flaps of the cover top loFOREI GN PATENTS cated outgide of and overlapping the parts of the end walls extending above said upper edges Number Country Date of the front and rear waus. 45 22,731 Australia ---------- I)ec. 12, 1935 4. A carton as in claim 3, In which a sheet of water-proof materia@l is positioned between the bottom layers.

Patojited Sept. 27t 1949 2 9 4 0 , 1 7 4 UNITED STATES PATE@NT OFFICE 2AS3,174 SEALABLE CARTON VVrrn MMTIPLY BOTTOM Jaeli R. BeLduger, Atlanta, Ga.' aawgnorto Behinger, Lmc., a corporation of Georgb APPUestion May 6, 1947, BerfatNo. 746,188 7 Mims. (0.229--23) @2 Thi-3 invention relates to a carton for containing fruit, bottled goo& and other articles. A feature of the inven-tion is the provwon of a carbon having a ;body, a hinged lid, handle structures for Iffting and carrying the carton, 5 and sealing arrangements, all presented ,by the cutting, folding and securing of corrugated -board, fiber board, or like stiffly flexible and strong material. Another feature of -the invention is the pro- !0 vi,qion of a carton having a double-bottom thickness and having a body portion formed with a homdle structure constituting reinforceinent at the u-pper edge of thebody, and provided with a hinged cover which overlaps the reinforeement, 15 and flts in abutment with parts of the bWy when in closed position, -for easy sealing. A further feature of the Invention Is the Provisi,Dn of a carton of the- aforesaid type, together with stiffening means fidr strength of the body 20 walls and cover, and providing fora f-ull-height receptacle during packing and an overlap during the closing and sealing. With these and other features as objects in view, an 11-lustrative form of drawing is shown in 23 the acoom-panying drawing. Flgure 1 is a perspective view of a closed and sealed carton according to this invention. Flgure 2 is a perspective view of the oarton, with the cdver opened. 30 Figure 3 Is a I-ay-out of a first -body and cover blank. Flgure 4 is a -.perspective view showing the blank of Mgure 3 folded for assembly. Fllgure 5 Is a lay-out of -a second body blank. 35 Mgure 6 Is a perspective view showing the blank <)f Mgure 5 folded ready for assembly. Mgure 7 Is a lay-out of a blank for providing an inside stiffening and goods-retaining liner. Mgure 8 is a perspective view of the blank Of 40 Flgure 7 folded and secured ready for assembly. Mgure 9 is a Iay-out of ablank for providing a cover stiffener. Flgure 10 is a perspective, view, corresponding to Mgure 2, sh-owing the assembled carton with 45 -a liner and a cover stiffener, with the cover opened. . Figure 11 is a Perspective'view of -an insert waterproof member. The basic carton, shown in Mgs. 1 and 2, has 50 top and bottom walls IO, I 1, front and back walls 12, 13, and the end structures provided each by an end wall 14, the folded'hand grips 15, and the overlapping and secured flanges li, 17, 18. The top waU 10 has integral flanges 19, 20, 21, 22 and 65 tabs 23, 24 which are -tumed to right-angle -positions aiid secured so that they correspond in cross-section to the free edges of the front wal.I 112 and to the flanges 16, 17, and abut there'against when the carton Is closed (Mg. 1). A score line 25 at the plane of the top edges of the flanges I I provides a hinge about which the cover is swung for opening (Flg. 2) or closing. In closed posltion, the flanges of the cover overlap the h-and grips 15 and prgvide strong and tight end closures; the ba6k wall is Integral; and a sealing tape 28 is ipplied (Mg. 1) tD the -front w-all 12 and the cover flange in their co-planar and abutting position, for sealing this part of the carton and securing it in closed position' It will ,be observed that the top, bottom, front and back walls are smooth outside, so that the filled 'cartons inay be slid easily over a floor or one andther, and so that a cart6n in one stack may be slid out without disturbing 6ontacting cartons in adjacent stacks. These @parts, and also the Inner faces of the end w-alls 14, are smpoth Inside, -and thereby avoid damage to sensitiveskinned fruits. The body and cover of the illustrative carton are formed from two blanks, as shown by the layouts in F4gs. 3 and 5. The blank of ng. 3 is cut from a single sheet of suitabie material such as corrugated board, and has the flange 19, the top or cover wall I 0. the flang@ 20, the r,ear wa 13, a bottom wall I I,,, and the front wall 12 arranged in that order, and separated from one another by the score line 25 for forming the cover hinge and by other score lines 30 parallel to one another and used to facilitate accurate folding. Each of these areas has Integral tabs joined therewith across score lines, to provide the tabs 23 on the flange 19; :the flanges 21, 22 on the top wall 10; the tabs 24 on the flange 20; the flanges 17 on the back wall 13; the flanges 18 on the bottom wall II,,; and the flanges 16 on the front wall 12. Bypreference, the front and back walls 12, 13 are of the same height, and the flanges 19, 20 are of the same height; so that the abutment occurs at a common horizontal plane, and the combined height of front wall 12 and flange IS is equal to the combined height of the rear witll 13 and flange 20. , The blank of Flg. 5 is formed from a single sheet of like material, wit.h parallel edges, and provides In succession the inner foldflange 15b, t e outer fold flange 15a, the end wall 14, the bottom waR I I the end wall 14, the outer foldflange 15&, and the inner fold flange 15b. Score

3 lines 31 are provided to fac.Uitate accurate foldIng. It is preferred to provide hand holes 14a in the was 14, at a distance from the adjacent flanges 156 corresponding to the height of the flanges 15& In the assembled carton. The width of the sheet, and thus the dimension of.the bottom waH II from front to back, closely corresponds to the corresponding dimension of the bottom wall II a of the blank of Mg. 3, and detern2ines the corresponding inside dimension of the basic carton. The other dimension of the bottom wall II determines the inside length of the basic carton; and the corresponding dimension of the bottom wall I I a Is deteripined by the thickness of the sflected material, so that the flanges 17, i8 wifl fit tightly against the outer faces of the end walls 14. These blanks can be cut and scored bY existIng box-factory equipment without difficulty; and can be shipped in the fiat to a fruit packer, for example, who employs standard stapling machines to secure the assembly. The assembly is performed by bending the blanks at the score lines provided, to approximately the forms indicated in Mgs. 4 and 6. The hand-grip Is formed by turning the inner part 15b into flat engagement with the outer part 15a, and then folding the two down flat against. the outer face of the corresponding end wall 14, so that (Flgs. 2 and 6) the cut edge is located within the triple thickness thus formed, and the folds at the top and bottom of the hand grip portions 14, 15 are smooth. The folded blank of Flg. 6 is then inserted in the blank of Flg. 4, and the parts are stitched, together by the stapling machine, into the form shown in Mg. 2. In this operation, the two bottom walls II a, I I lie one on the other, to provide a double bottom thickness, and the front and back walls 12, 13 are fitted against the edges of the bottom wall I I to give great strengtb and rigidity to the bottom. The flanges 16, i 7 are fitted over and stitched to the end walls 14 and also over and stitched to the folded parts 15&, 15b which provide the hand grip 15, to prevent unwinding thereof. The flanges f8 flt closely against the central parts of the end walls 14, at their bottom, and are stitched thereto and to the flanges i6, 17. The stitching of the tabs 23, 24 to the flanges 21, 22, to form the cover, may be accomplished befgre or after the stitching of the body, as may be more convenient. The assembled carton (Fig. 2) is easily to load and close: and can b@ sealed agalnst opening or loss of contents by a single length of gummed tape 28 (Fig.1). This basic container, with its doubled bottom, smooth internal surfaces, and great end strengtb, with convenient and natural position of smoothly flnished hand grips, is satisfactory for most employments. Sometimes, A particular commodity requires a higher front wall and a greater resistance to damage if dropped upon a comer. This can be attained with the same basic container by introducing a body liner and cover stiffener. The blank in Mg. 7 is formed from a single sheet of like material, of rectangular shape, havIng the longer walls 40, 41 and the shorter walls 42, 43, with the securing flange 44; separated by the scored fold lines 45. This is folded and ttitched as shown in Mg. 8 to form a sleeve liner of rectangular section; and telescoped into the body of the basic carton, as shown In Mg. 10, and thus provides inner front and back walls of 2,488,174 4 over-lap for the flange 19 of the cover, and at the hinge line 25, thereby further strengthening the structure. The blank in Flg. 9 is formed from a single rectangular sheet of like material, with a central area 50 fltting closely inside the flanges 19, 20, 21, 22 of th6 cover, and ha,@ing also the integral flanges 51, 52 separated by scored fold lines 63. This is tucked into the cover (Flg. 10) and 10 stitched into position. It will be noted that the doubled and tripled end flange construction 21-14-13-52 and 22-14-13-53 of the cover flts tightiy against the quadrupled thickness provided at the ends of the body by the end walls 15 14, the flanges 15,1, 15b, and the liner end walls 52 or 53; so that great rigidity is produced at these points, and extended across the entire cover by the doubling effect of top walls 10, 50. Hence, when closed and sealed, the Package is strong; .0 and when open it holds a full load of such prgducts as beans, grapes, currents, etc. It will be noted that the assembled container is easy to pack, sea], and handle: and that it is easily opened when so desired. Before splitting 25 the sealing tape along the abutment line, undetectable pilfering is difficult or impossible. Also, the double bottom of the basic container, and the doubled walls of the reinforced container, adapt these to uses with products which may 30 give off liquids; and to uses where the package may stand in water, as when placed upon a wet shipping platform: in either case, the liquid may soften and reduce the strength of the layer wliieh it encounters, but does not easily or generally @-,3 pass to contact with the other layer. The several parts may be made of boards' of different weights or compositions. Thus the blank of Mg. 5 may be of solid fiber board, and that of Flg. 3 of double-faced corrugated board. 4ii The board liners of corrugated board maY be of sized stock for water repellence. The same blanks may also be used, in the same waY, with the intercalation of a sheet of waterPrGof stock between the parts, to improve the 4.-) resistance to intemal or external wetting. Thus, a sheet of resin-sized paper, asphalt-coated paper, waxed paper, etc., may be employed. In Fig. 11, s-uch a sheet is shown as folded to provide a thin central fleld 60 which overlies the total 5o area of the outside bottom part I I,, and has upstanding walls 61, 62, of height corresponding to that of the flanges 18 and useful to position the sheet during assembly. The specific form of Flig. 11 also has walls 63, 64, and the corners are 55 formed by diagonal folding -to provide the wings 65 wherewith a waterproof tray of corresponding wall height is obtained, for inclusion in the container shown in Flg. 10 during its assembly. It is obvious that the Illustrated forms are not oo restrictive, and that the invention may be employed in many ways within the scope of the appended claims. I