US2054298A - Process of making paper receptacles - Google Patents

Description

SePt- 15, 1936 G. w. POPPE PROCESS OF MAKING PAPER RECEPTAULES Original Filed June 26, 1934 2 Sheelzs-Sheefl 1 mnentor GEORGE POPPE n %,9

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Gttotneg plication.v

Patented sept. 1s, 193s UNITED STATES PnocEss oF MAKING PAPER nEcEPTAoLEs George WfPoppe, Brooklyn, N. Y., assignor to Equitable Paper Bag Co., Inc., Brooklyn, N. Y., A a corporation of New York original application June 2s, 1934, serial No. 732,494. ,Divided and this application April 29,

1 935, Serial No. 18,751

z comme.` (o1. ssl-35) This invention relates to a processo! making a paper receptacle designed moreV especially for holding merchandise for mailing purposes which f requires inspection by the' postal authorities. In

my,,application Serial No. 732,494, filed June 26,

138g, and allowed October 9,1934, I have shown, described and claimed a 'paper 'receptacle ofthis type. The presentcase'is a division of said ap- -Anessential feature of thereceptacle structure described and claimed in the parent application is the provision of tapered 4flaps at the open end of the bag which enables them to be folded inside the' receptacle and to be readily inserted between the leaves of a-pamphlet, magazine or the like to thereby securely hold the same within the receptacle, thus rendering unnecessary the employment of several closure devices, at the same time permitting ready inspection of the contents without withdrawing the flaps. The flaps must therefore be of the proper length in order that the result sought may be accomplished.

The process by which this receptacle may be conveniently and rapidly produced will be better understood by reference to the following description when taken in connection with the accompanying drawings in which- Figure 1 is a perspective view of my improved receptacle ready for use;

Figure 2 is a longitudinal sectional view through the receptacle, showing how the naps are folded and inserted between the pages of. a magazine contained within the receptacle;

Figure 3 is a front elevation of the upper portion of the receptacle with parts broken away to show how the tapered flaps enable the same to be inserted within the pages of a magazine;

Figures 4 and 5 are views showing some of the steps in the process of making my improved receptacle and Figure 6 is a longitudinal section through a bag machine showing how the article is produced on such a machine.

The method of making the receptacle is illustrated in Figures 4, 5 and 6. Referring to Figure 5, a web of paper I 6 to which`a line of paste il has been applied is folded to form a bag tube, which tube is severed into bag lengths in a man- 4ner well known in the art of bag making. Preferably this folding, pasting and severing is done on an ordinary bag machine and in Figure 6 I have shown more or less diagrammatically a cross-section of such machine with the necessary additions and'modications which t it to carry out the preliminary steps in the making of my improved receptacle. Referring to this figure, the l Aweb I6 is fed from a roll of Vpaper I8, which web,

afterv passing suitable guiding rollers, is fed to y the reversing roller 2D, at which point the line of -paste il is applied by a paste disc 22 revolving in a paste pot 23. From the roller 20'the web 4passes under the heel of a former 2d and is drawn along by the usual feed rollers 26. The edge of the former isl serrated at 23 and there is the usual lip knife 30 also having a serrated edge. After passing the feed rollers, the bag tube is led `between the usual pinch bars 32 which momentarily retard it at the same instant a striker bar 3i, carried by a sprocket chain 35, delivers a sharp blow to the tube from beneath. After a bag section is severed from the tube and at the instant the pinch bars free it, the sev- .ered bag section is pulled forwardly by scoring devices 36, which devices make the score line I0. The bag Vthen passes to the usualcylinders 38 which fold and paste the bottom.

The upper cylinder is provided with the usual paste bar 39 which receives paste from a roller 4 rotating the paste supply vessel 4i, all of these parts being of the usual construction and found in anv ordinary bag machine. The lower cylinder 38 carries the usual cla-mp 42 with which cooperates the tucker blade 43 by which the bag -bottom is folded. The iinished bag then passes to the usual delivery mechanism indicated generally by dal.

When the web is passing over the roller 2D a die 46 carried by the Shaft 41 suitably driven from the lower pinch bar shaft 33 makes an incision in the web, said incision eventually forming the notch l2, Figures 1 and 2. The incision is also indicated as I 2.in Flgure 5; The bag, after being severed by the striker bar 34 andV before the bottom is folded by the cylinders 38 has the appearance depicted' at the left, Figure 5. yIt will be noted that the lower serrated edge 48 of the seam wall is oset from the lower wall so that whenv the tube section is folded along the line af-a, Figure 5, a portion of the seam wall is included within the fold. This gives -a reenforced bottom which is peculiar to a bag as distinguished from an envelope. The line of paste .applied by the bar 39 is indicated at I9, Figure 5.

inders 3.8, it has the appearance shown in Figure 4.

.In order, however, to produce, the bagl shown in Figure 1, further operations are necessary. These consist in cutting the bag tube transversely along a line b-b which is within the serrations 50, Figure 4. This operation may be performed with an ordinary paper cutter. The edges of the bag are also cut along the lines c-c and after this cutting operation the bag presents the apl pearance shown in Figure 1. The anglerat which the cuts c-c are made may, of course, be varied as desired.v

Where the two ilaps 6 and 8 are of equal length then it is convenient to provide the notch l2 inone of these flaps for convenience in opening the bag mouth. The incisions which create these notches, each of which is made by the die 46, are at bag length intervals apart and the timing may be such that when the tube is severed along the line 50, Figure 5, such line of severance will be just above the ends of the incision. This Vlikewise inexpensive, the preliminary steps being performed on an ordinary bag machine. The nal steps may be performed by an ordinary paper cutter, although provision may be made, if desired, to' make the cuts on the bag machine. v

I claim:-

1. The process of making a paper receptacle which consists in folding a web of paper to formv a bag tube with the edges of the web overlapping to form a seam, pasting the seam, severing the tube into bag lengths so that the tube walls are oiset in the direction o! the tube length, folding and pasting the bottom and cutting the edges of the tube along diagonal converging lines to form two aps at the top of the bag.

2. The process of making a paper receptacle which consists in folding a web of paper into a bag tube with the edges of the web overlapping to form a seam, pasting the seam, severing the tube into bag lengths so that the walls of the tube are o'set in the direction of the tube length, folding and pasting the bottom with portions of the seam wall included within the fold, cuttingv the edges of the tube along diagonal converging lines and also cutting the top of the tube transversely, thereby to form two aps at the top of the bag.

v GEORGE W. POPPE.

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