US2013788A - Garment bag and process of making same - Google Patents

Description

G. W. POPPE Sept. 10, 1935.

GARMENT BAG AND PROCESS OF MAKING SAME iled Aug. 7, 1934 3 Sheets-Sheet 1 Sept. 10, 1935. 3. w POPPE 2,013,788

GARMENT BAG AND PROCESS OF MAKING SAME Filed Aug. 7, 1934 3 Sheets-Sheet 2 INVENTOR GEORGE 61/. Pop/=5,

ATTCRNEY Patented Sept. 10, 1935 lTED STATES GARMENT BAG AND PROCESS OF MAKING SAME George W. Poppe, Brooklyn, N. Y., assignor to Equitable Paper Bag 60., Inc., Brooklyn, N. Y., a corporation of New York Application August 7, 1934, Serial No. 738,812

6 Claims.

This invention relates to garment bags and the process of making same. More particularly it relates to garment bags of that type wherein the upper end is diagonally folded, leaving a central gap through which the hook of an ordinary garment hanger may be passed, the gap or opening being reenforced.

Garment bags having their upper corners diagonally folded in opposite directions leaving a central opening through which the hook of a hanger may be passed have come into very extensive use and elaborate and complicated machines have been devised for their production. These bags, however, as ordinarily made have no reenforcement at the opening, and therefore are likely to tear after the bag has been in use for but a short time.

It has been proposed to provide a reenforcing lip at the opening of a bag of this character and such a bag is shown in Figure 3 of the patent to Potdevin 1,783,979, December 9, 1930.

An object of the present invention, therefore, is to produce a bag similar to that disclosed in said Potdevin patent but which has certain advantages thereover.

A further object of the invention is the production of a bag of this character by methods which will enable the same to be rapidly produced on a bag machine.

An important feature of the invention resides in the manner in which the reenforcing flap or lip is formed.

A further feature resides in the fact that the flap is formed in the web prior to folding the web to form a bag tube.

Further features and advantages will become apparent from the following description and claims when taken in connection with the accompanying drawings in which:

Figure 1 is a longitudinal section through the righthand portion of a bag machine having my improvements embodied therein;

Figure 2 is a more or less longitudinal section showing diagrammatically the passage of the bag tube section after the same has been severed into bag lengths;

Figure 3 is a view looking in the direction of the arrows 3-3, Figure 1;

Figure 4 illustrates diagrammatically the method employed in making my improved bag;

Figure 5 shows a portion of the Web just after it has been acted upon by the die which makes an incision in the web;

Figure 6 shows the web at a later stage with the lip or flap folded back;

Figure 7 is the completed bag; 7

Figure 8 shows the lower tube section at the time of severance by the former; and

Figure 9 shows a modified construction of the, former.

Referring to Figure l, a web of paper 2 from which the garment bag is to be made is fed from a roll of paper 4 and passes over a guide roller 5 and a reversing roller As the web passes over the roller 6 it receives a line of paste indicated 5.

at 8, Figure 4, which paste is applied by a paste disc l0 dipping into paste carried by a paste pot l2.

In the usual bag machine, whether used for making ordinary bags or garment bags, the paper web, after passing the roller 6 is folded into a bag tube.

In the carrying out of my new process, however, I prefer to form the flap which is to act as a reenforcement for the opening in the finished bag, by die-cutting the web to form the flap and folding the flap over onto the web prior to folding the web into a bag tube.

In order to produce these bags on a commercial scale, I have shown my new process as being carried out on a garment bag machine suitably modified to suit the requirements of the process. I therefore provide a shaft [4 suitably journalled in side members It, Figure 3, and near the center of this shaft is mounted a die holder 25 I8 carrying a die 20 which makes an incisionin the web of paper, indicated at 2|, Figure 4. This incision is so located that it is substantially central of the under or front wall of the bag in its finished form. The web, after having the inci: sion 2| made therein, passes between scoring rollers 22 mounted on shafts The upper roller has a notch 24 and the lower roller is provided with a projecting rib 25. The upper roller 22 with its notch 24 is clearly indicated in Figure l. The length of the score corresponds to the distance between the ends of the cuts made by the die, the score line being indicated at 26, Figure 4. This scoring results in deflecting the flap 21 to a small extent as indicated in Figure 1. The next stepis the folding back of the flap thus formed. To accomplish this I provide a bar 28 suitably mounted in the side frames Hi. This bar acts to turn the flap down to such position that it is properly presented to the ironing rollers 30 between which the web then passes. These rollers are mounted on shafts 32 journalled in the side frame members. In order that the pressure between the rollers may be varied, the lower roller "30 is mounted for adjustment by means of screws 33.

After the web has been treated as above de-- scribed it then passes under the former 34 about which it is folded to form a bag tube in the usual manner, the flap 2! having been folded back against the wall of the web. The tube is fed forward in the usual manner by feed rollers 36 journalled on shafts 38. The forward edge of the former is serrated as indicated at 40 and the bag tube is severed by this edge and also by the serrated edge 42 of the lip knife. For this purpose the usual striker bar 44 is provided. This bar is carried by a sprocket chain 46 suitably guided over sprocket rollers 48. The usual pinch bars 58 journalled on the shafts 52 are also provided for retarding the tube at the proper time to enable the striker bar to sever the same.

Just after the web has passed the scoring rollers 22, it has the appearance shown in Figure 5.

After the web has passed the bar 28 and the ironing rollers 30 it has the appearance shown in Figure 6, the flap having been folded back to the position shown in dotted lines in said figure.

The tube section, after having been severed by the end of the former and the lip knife passes to the rolls 54 and thence to a pair of drawing rolls 55. After passing the rolls 58 a line of paste is applied along the broken line indicated at 58, Figure 4, which operation is effected by a paste bar 80 which at each rotation makes contact with a roller 82 protruding from a paste pct 64. The paste bar is notched so as not to apply paste across the gap at the bag top. The bag tube then passes to the mechanism which folds the upper end along the diagonal lines indicated at 66, Figure 4.

To make these diagonal folds the end of the tube is gripped by a travelling gripper 68, Figure 4, and the lateral edges of the tube by travelling side grippers 10. The diagonal folds are made by mechanism not specifically shown in the present application but which may be such shown in said Potdevin Patent 1,783,979 and which is more fully described in Potdevin Patent 1,838,704, December 29, 1931.

The various shafts I4, 23 and 32 are driven primarily from the lower pinch bar shaft 52. This shaft carries a sprocket at its left-hand end (not shown) over which passes a sprocket chain '52, Figures 1 and 3. The sprocket chain 12 passes about a sprocket on shaft 13, the latter shaft carrying the gear M with which meshes a gear 15, the latter gear carried on a stud shaft. This stud shaft carries two sprockets about which pass sprocket chains 16 and H. The sprocket chain 71 passes over a sprocket on the shaft 73 to drive the latter shaft. The sprocket chain 16 passes over a sprocket on the shaft l 4 to drive that shaft and the die-holder l8. The roller 6 is a roller of hardened steel and is not positively driven.

The upper shaft 23 carries a gear 78 which meshes with the gear 88 on the lower shaft 23 whereby these shafts are driven in a one-to-one ratio and in opposite directions. The shaft 78 meshes with an idler 82 mounted on a stud shaft 83 projecting inwardly from the side frame 18. The gear 82 meshes with a gear 84 on the upper shaft 32 and meshes with a similar gear 86 on the lower shaft.

The machine is so timed that the pinch bars 58 make one rotation for each bag made and the other shafts are so geared that the shaft M carrying the die 20 also makes one rotation for each bag made. It follows from this construction and timing that the incisions made by the die are at bag length intervals apart.

The position of the bag tube in relation to the cutting edges of the former and lip knife is such that the former cuts the bag tube along the line 88, Figure 4, substantially in line with the fold of the flap. The upper or seam wall of the bag is severed by the lip knife along the line 98.

While an ordinary former having ,teeth across of a modified former in Figure9'wherein thereis a small gap 92 of a width equal to the length of the base of the flap so that the fold of the flap may not be in any danger of being scarred when the bag is severed.

While I have shown the scoring rib 25 as be- 5 ing carried by the lower roller 22, it is obvious that the scoring rib and notch may be reversed in which event the lip 27 would be turned up instead of down. This would necessitate the bar 28 being placed on the opposite side of the web from that shown in Figure 1 and in a change in location of the ironing rollers.

It would also result in the flap being folded into contact with the upper surface of the web. In such case the flap would be inside the bag instead of on the outside, in the finished product. There is, however, some advantage in having the flap on the outside of the bag wall, as shown in the Figure 1 construction, because this flap is not pasted to the bag wall but is held in close contact therewith by reason of the diagonal folds, within which are included the edges of the flap.

If such an unpasted flap were turned on the inside of the bag there would be some chance of the hook of the hanger catching in it as said hook were passed through the opening. This, however, cannot occur when the flap is on the outside. The reenforcement which the flap provides is effective, however, whether the flap is on the inside or on the outside. 30

What I claim is:

1. A garment bag having side walls and a diagonally folded top with an opening at the apex of the fold, one of said bag walls having a central reenforcing lip of greater length than the width of the opening, said lip being folded upon the outside of the bag wall and the edges of the lip being included within the diagonal folds.

2. The process of making a garment bag having a diagonally folded top, which consists in taking a tube having a folded-over fiap at one end thereof, severing the tube into a bag section, one line of severance being substantially coincident with the line of fold of the flap and subsequently folding the tube section along diagonal lines which include the edges of the folded flap.

3. The process of making a garment bag which consists in forming a fiap in a web of paper, folding over said flap against the web, folding the web to form a bag tube, severing the tube into bag sections and subsequently folding a bag section along diagonal lines to include the edges of the folded-over fiap.

4. The process of making a garment bag which 7 consists in forming a fiap in a web of paper, fold- 5 ing over said flap, folding the web to form a bag tube and subsequently severing the tube into bag lengths and forming the usual diagonal. folds at the top of the bag.

5. The preliminary steps in the process of making a garment bag having a diagonally folded top, which consists in forming a flap in a web of paper and folding over the flap prior to folding the web to form a bag tube.

6. The process of making a garment bag which consists in making incisions in a Web of paper and scoring the web to form a flap, folding said flap against the web, folding the web to form a bag tube, severing the tube into bag sections and subsequently folding a bag section along diagonal lines leaving an opening at the apex of the diagonal folds, said diagonal folds including the edges of the folded-over flap.

GEORGE w. POPPE;

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