US1601566A

US1601566A - Reinforced bag

Info

Publication number: US1601566A
Authority: US
Publication date: 1926-09-28
Anticipated expiration: 1943-09-28

Description

Sept. 28 1926.

' W. E. ELLIOTT REINFORCED BAG 2 Sheets-Sheet 1 Filed April 6, 1921 A WUR/vf x gMQm Sept 28,1926.

W. E. ELLIOTT.

REINFORCED BAG Filed April 6, 1921 2 Sheets-Sheet 2 A TTU/Wwf Patented Sept. 28, 1926.

WILLIAM E. ELLIOTT, OF LYNN, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO MINNIE S. ELLIOTT, OF

LYNN, MASSACHUSETTS.

REINFOECED BAG.

In bags of such relatively frail material as paper, in which considerable weight-s of material are to be placed and which are to be carried or suspended by the edge surrounding the mouth, it has been customary to strengthen the points of suspension by turning in this edge. Moreover, when handles are attached to the edges, themouths have been additionally reinforced by short stays of pasteboard placed between the inturned portion and the body of the bag, the handles being attached near the ends of the stays. While such constructions are advantageous, and while a stay of this character is useful in preventing the separation of the handle and bag by the direct pull of the contents, it is l found that if the bag is continued in use for even a relatively short time, the contained weight, acting along lines terminating near the juncture of the handles with the body, causes the paper to fret through and tear at the ends of the stays, destroying the usefulness of the container. This defect I have effectively overcome by a simple and inexpensiveconstruction hereinafter described and particularly claimed, and by means which, instead of interfering with the opening and closing of the bag, 'facilitates these operations.

A particular embodiment of my invention and a modification thereof are illustrated in the accompanying drawing, in which Figure 1 shows in perspective abag reinforced in accordance with my invention; F ig. 2 is a similar view of the double stay which is inserted in the bag; Fig. 8 is a transverse sectional detail on the line 3-3 of Fig. 1; Fig. -1 illustrates in perspective another form of bag embodying my invention; Fig. 5 is a perspective view of still another modification of my improved bag; and Fig. 6 shows in perspective the stays of this bag removed from the body.

Referring particularly to Figs. 1, 2 and 3,

' the numeral 10 designates the body of a bag or like container having an elongated, hexagonal bottom 11, the entire device being formed preferably from a single sheet of paper. This is folded in any usual or convenient manner. As is customary in this type, there may be single longitudinal folds 12 at the opposite ends of itsmaximum transverse dimension, and

folds

13 and 14 between the bottom and sides, all these folds meeting' at the

apices

15, 15 and 16 at each 1921, serial No. 458,986.

end of the bottom. TWhen the bag is opened, the bottom tends to assume a rectangular form, bounded by the

folds

13, 13 and curved portions of the bottom between the

apices

15, 15, there being turned up at each end of the bottom a triangular portion 17. In expanding the mouth of the bag to give access to its interior, the tendency, to give the most effective opening, is for the mouth to conform generally to the hexagonal contour ofthe bottom, folds already existing at 12 and developing in the operation, in alinement with the apices 15.

About the mouth of the bag is an inturned fold 18, between which and the body are two like stays or reinforcing strips 20, 2O of flexible material more resistive to tearing than paper. A suitable substance from which to make these stays is pasteboard, which, like paper, is light and cheap. Each stay continues unbroken about one of the transverse ends of the bag, terminating at 21, 21 at points between the centers of the sides of the bag and the ends, they thus furnishing overlapping portions 22, 22, as is best shown in Fig. 2 of the drawing. Through each of these portions 22, the fold 18 and the outer body of the bag, extends some such securing means as

staples

23, 23, clinched at the inside at 24, and holding, by the engagement of their yokes, loop-handles, which may be furnished by pieces of cord 25. To give a neat appearance, openings 26 may be formed in the wall of the bag below the staples, to receive and conceal the loose ends of the handles. Preferably, the stays are secured to the body of thebag by a layer of paste or other adhesive indicated at 27 (see Fig. When a weight is carried in this bag suspended by the handles, the directions of the vprincipal stresses set up are from the center of the bottom to points at or near the attached ends of the handles. These are resisted at the mout-h of the bag by the' double thickness of the stay and the additional thickness of the doubled bag` material, this resistance being effective not only at the points of attachment of the handles to prevent their pulling away from the bag, but also for considerable distances at each side of these points. Consequently', there is little. liability to rupture at what is ordinarily the weakest part of such a bag. The tendency to tear is sufficiently resisted along the lines of less stress at the ends of the sides by the lill.)

leo

single thickness of each stay, together with the doubled paper, coming outside the

ends

21, 21 of the companion stay, without unduly increasing the Weight of the bag or the rigidity of the mouth.- g

Beyond the ends 21 of the associated stay, the closed end of each stay has, substantially alined with the

apices

15 and 16 of the bottom folds, transverse depressed lines at 28, these being produced in some such way as by indenting. When the sides of the mouth are sepaizitedy to oponthe bag', these indented lines readily bend, causing the mouth to assume a polygonal form, or the same general hexagonal shape as the bottom portion, and thus giving full access to the contents, or permitting articles to be easily removed. Vv' hen the opening` force is released, the spring of thesides inclines them to return into contact, the portions 28 having little tendency to become permanently set. An effective closure of the bag is thus maintained, particularly when its weight is held by the handles, the continuous stays at the sides leaving no portion free to bulge. Since the indented portions of the stays are considerably removed from the points of maximum strain, where the handles are attached, they are not likely to be broken thereby.

Fig, i illustrates my invention applied to the type of bag having a rectangular bottom 30, with a re-'entrantpoi'tion 3l formed in the transverse ends of its side wallsV by longitudinal central folds 32 and parallel folds 3B, 38.

Transverse side folds

34 and 35,

transverse end folds

36, 36 and converging end folds 37 meet 4at vthe apices 88, 39 and 110. The reinforcement in` this bag need differ in no essential particular from that already described, save that here an indented portion 41 of each stay is alined with the corresponding fold apex 40, and' each of

portions

42, 42 with the

apices

38 and 39, while the portions 41 are bent in the opposite direction to the corresponding indented portion of the bag first described. The gene eral effect in this case is, however, precisely the same asbefore.

In Figs.r 5 and 6 a modification of my improved reinforcement is shown in connection with the type or bag appearing in Fig, 1. Here the reinforcement also fully encircles the mouth of the bag, it consisting of' two

stays

50, 50, which do not overlap, but which extend into contact with each other at the

folds

12, 12 the 4entire length of both sides of the mouth. In this bag the handles 5l, 51

are each attached to a short .doubled stay 52,

which is inserted with the corresponding stay 50 within the folded-over portion 18 of the bag-mouth. The open side ofl this stay 52 is preferably at the oute-r edge or top of the bag, andhas between its sides the ends yof the handles 5l, which are stapled through said sides at yand pass outwardly between the sepa-rated edges of the short stay at 5d and through openings 55 in the edge of the folded-over portion 18. The length of each stay 52 may be equal to the distance between the apices l5, 15 of the bag at one side, and, coinciding with the ends of these stays 52, the stays Vl preferably have indented or suitably indented yportions 56. This, similarly to the bag of Fig. 1, facilitates the opening and closing of the bag at its natur-al folds.

In, assembling the structure, the proeediiire indicated at the fron-t wall ofthe bag of Fig, 5`may be followed. @ne of the handles 51 is secured by its staples 58 at one extremity to the stay V52. The point of attachment of the handle to the stay is made evidentto the operator by indicating marks 571, which may be stamped orr impressed in any desired manner upon the outer wall of the stay. The-n the freeV end of this handle is passed through one of the bag-openings 55 from within the fold 18, and then through the other ope-ning at the same side ofthe bag, into and through the fold. Now this end may also be stapled to 'the stay at points indica-ted by the marks upon this portion.

'lll-ius attziched, the stay may be drawn up into place beneath the fold, the long stay 59 inserted', `and the attachment of the two stays to the bodyand fold of the bag completed by the applica-tion of an adhesive and the pressure ofthe parts together. A similar course is followed for the opposite side of the bag; It will be observed that by the provision of the indicating marksat the correc points, when the stavs 52fare made, the attached handles willbe caused to exactly register with the bagppenings 55 and the ends of the stays l52 Vwith the bag-folds which sta-rtf-rom the apices- 15, this-without special consideration onthe part ofthe workman.

V-Vhateverthe particular form of bag thus reinforced, it presents, with an almost negligible addition to the cost and Weight, a much greater security ofthe attachment of the handles, freedom from tear-ing of all portions of the mouth, `and a general stability `of the part which must- -be most handled, While at the same time increasing the facility with which the mouth` may be opened to give access to the interior, and furnishing an efl'ective closure for maintaining the opposite edges ofthe mouth parallel and in close proximity to each other when the bag is being carried.

I claim:

1. A bag comprising a body of paper, and a reinforcement. encircling its entire mouth and consisting of a plurality ofvoverlapping strips of material similar to the body hutmore resistive 4to tearing and carrymeans for supporting the Weight ofthe bag upon the overlapping portions of the reinforcing strip.

2. A bag comprising a body of paper, a reinforcement encircling its entire mouth and consistingofa plurality of overlapping strips of material similar to the body but more resistive to tearing, and handles secured to the body and overlapping portions of t-he reinforcement at opposite sides of the mouth.

3. A bag comprising a body portion, and a reinforcement consisting of two sections overlapping at opposite sides of the mouth and extending in opposite directions about. the ends of the mouth.

4;. A bag comprising a body portion, a reinforcement consisting of two sections overlapping at opposite sides of the mouth and extending in opposite directionsabout the ends of the mouth, and handles secured t the overlapping portions of the reinforcement.

5. A bag comprising a body portion, a re inforcement consisting of two sections overlapping at opposite sides of the mouth. and

extending in opposite directions about the ends of the mouth, loop-handles situated at opposite sides of the mouth of the bag, and staples securing the extremities of the loops to the body and to both reinforcements near the ends of the sections. n

6. A folded bag comprising a body of paper, a reinforcement consisting of two sectional strips of pasteboard overlapping at opposite sides of the mouth and extendng in opposite directions about the ends of the mouth, said reinforcing strips being weakened along lines corresponding to portions of the folds, loops situated at opposite sides of the mouth, and staples securing` the extremities of the loops to the reinforcements near the ends of the sections and at points removed from the weakened portions.

7. A folded bag comprising a body of paper having an inturned edge surrounding its mouth, a reinforcement consisting of two sectional strips of pasteboard situated between the body and edge of said reinforce- 8. A folded bag comprising a body of paa per having longitudinal folds at the opposite ends of its maximum transverse direction and a bottom presenting a rectangular base and triangular end portions extending from the ends of said base having their apices in said longitudinal end folds, longitudinal folds in said body extending from the corners of said base to the top of the bag, a plurality of reinforcing strips having overlapping portions extending along the opposite sides of the bag and provided with indented lines in alinement with the longitudinal fold lines of said bag and handles secured to the overlapping portions of said reinforcing strips.

Signed at Boston, in the county of Suffolk and State of Massachusetts, this 29th day of March, 1921.

WILLIAM E. ELLIOTT.