US1962199A - Paper bottle and method of manufacturing the same - Google Patents

Description

June 12, 1934. K H ET AL Q 1,962,199

PAPER BOTTLE AND METHOD OF MANUFACTURING THE SAME Filed July 18. 1931 3 Shets-She et Juhe 12, 1934.

| B. KOCH El AL PAPER BOTTLE AND METHOD OF MANUFACTURING THE SAME Filed July 18 1931 s Sheets-Sheet 2 bv/ENToR; LydLcLB KqC/l? Andn|'aur Endur- June 12, 1934.

| B. KOCH ETAL 1,962,199

PAPER BOTTLE AND METHOD OF MANUFACTURING THE SAME I Filed July 18. 1931 3 Sheets-Sheet 3 fill? S zes-ma); I.

Awe-urns -L ydm B Kach- -'Rncl1:'Emr Bucharig/mfg Patented June 12, 1934 PAPER BOTTLE AND METHOD OF MANU- FACTURING THE SAME Lydia B. Koch, New York, N. Y., and Andrew -.-Bodor, Newark, N. J., assignors toeReinforced Paper'Bottle Corporation, New York, N. Y., a. corporation of Delaware Application July 18, 1931, Serial No. 551,752 4 Claims; (01. 229-45) Our invention relates to improvements in paper bottles and the method of manufacturing the same, and the object of the invention is to devise a paper bottle which will be rigid in construction and cheap in cost; a further object is to devise a bottle which will be particularly susceptible for use for milk and other liquids; a still further object is to construct a paper bottle which, in

shape, will simulate the appearance of an ordinary glass milk bottle and which will be leakproof.

And a most important object is to devise a practical method, the steps of which must be followed in order to produce a perfect bottle comprised entirely of paper at a minimum cost.

With these and other objects in view which will hereinafter appear, our invention consists of a paper bottle and a method for its manufacture, all as hereinafter more particularly described and illustrated in the accompanying drawings in which:--

Fig. 1 is a plan view of the blank whereby the upper and lower portions of the paper bottle is formed up.

Fig. 2 is a plan view of bottom.

Fig. 3 is a diminutive view of an alternative form of connecting the upper and lower portions of the blank together.

Fig. 4 is a vertical section showing the double the disc forming the wall formation of the bottle after it has been.

wound to form the body of the bottle.

Fig. 5 is a sectional plan through the line 5-5 Fig. 4, full size, with thickness of wall exaggerated.

Fig. 6 is a sectional plan through the line 6-6 Fig. 4.

Fig. Tis a vertical section showing the first operation after the winding of the body of the bottle.

Fig. 8 is a vertical section showing the result of the second operation after Fig. 7.

Fig. 9 is a vertical section showing the result of the third operation, which however may be dispensed with;

Fig. 10 is a similar view showing the result of the finaloperation for forming up the corrugated upper portion of the bottle and the neck.

Fig. 11 is a similar View to Fig. 10 showing the result of the first operation for inserting the paper bottom.

Fig. 12 is a perspective detail of the flanged I bottom before being serted. a Fig. 13 is a vertical view showing the result 0 finally formed up and inthe final operation for completing the bottom and the bottle.

Fig. 14 is a side elevation of the bottle complete.

Fig. 15 is a cross section showing the type of corrugations. v

In the drawings like characters of reference indicate corresponding parts. 7 In Fig. 1 the blank is half scale to form up a bottle of pint size and in the Figures '7, 8, 9, 10, 11, 12, 13, 14, and 15 the scale is the same. Y

In Figures 2, 5 and 6 the scale is full size but in Fig. 3 the scale is diminutive in relation to Fig. 1. The thickness of the paper throughout is, of course, greatly exaggerated.

The bottle is made up of an are shaped blank 1, forming the upper tapered portion of the bottle and a rectangular blank 2 forming the lower portion or wall of the bottle. These portions 1 and 2 are pasted or otherwise secured together at the end at which they are fed into the machine as clearly shown in Fig. 1. i

In Fig. 3 however, the portions 1' and 2' are integral being connected by a neck 3 at the end at which the blanks are fed into the machine. Approximately half the blanks 1 and 2 have 86 pasted surfaces as indicated by the dotted areas of the blank and the inner edge of the are shaped portion has a strip or film of paste 4 extending from the pasted area to the point 3 which is also are shaped.

5 is the bottom which is made of paper and is circular asindicated and turned up at 5 circularly to form a flange 5 see Fig. 12.

The lower portion ofthe bottle is wound upon itself to a double thickness and secured together 90 or therearound by the pasted area 2 the ends of. the wind 2 and 2 overlapping as indicated in Fig. 6 the substantially central portion of the blank 2 as circularly wound. It will be understood, however, that the are shaped portion 1 is wound upon the mandrel at the same time thereby causing the pasted arc-shaped strip 4 to adhere to the adjacent edge of the portion 2 as it is being wound and actually interwinding with the portion 2 as indicated in Fig. 5, as well as overlapping as indicated in Figs. 4 to 13. The interwinding will be understood by again referring to Fig. 5 in which it will be seen that the end 2 of the portion 2 lies inside the end 1 of the portion 1 which extends circularly past 10! the end 2 The central portion of the portion- 2 lies inside the central portion of the portion 1 and the end portion 2 of the portion 2 lies outside and overlaps the end portion 1 of the portion 1. In short, the ends 1 and 2 of the 11 two portions overlap respectively and arelocated to the outside of the other ends 2 and 1 'of the portions. These portions all overlap bothvertically and horizontally and break joint.

As a result the bottle is stiffened materially from top to bottom. When actually manufactured the paper is so thin that it is difiicult to appreciate the thickness of the. joint without careful scrutiny.

What we have hereinbefore described as will be understood relates to the primary winding of the body of the bottle upon the mandrel, that is to say, to form the lower cylindrical portion of curl 5 is further inturnedpreferably by spinning into somewhat oval form 6 as indicated in this figure.

The next step is indicated in Fig. 9 in which a swedging operation is performed to partially form an interior seat to receive the ordinary closure disc as'at '7. It may, however, be dispensed with, depending on the paper used.

The next step is to repeat the wedging operation so as to complete the formation of the seat 7 and at the same time form the annular enlargement round the neck and the longitudinal corrugations 15 extending from the-lower end of the taperedportion of the bottle into such annular enlargement as indicated in Fig. 10.

Having completed the upper portion of the bottle it is now necessary to insert and spin in the bottom. The next step therefore is indicated in Fig. 11 in which the disc 5 provided with the depending flange 5 is.inserted by suitable means into the open bottom with the bottom of the flange considerably above the bottom edge of the bottle. Having inserted the disc 5 we apply afilm of paste 8 as indicated in Fig. 12 and spin in the outer edge of the bottom of the bottle intimately so as to wind in the extreme edge 9 with the extreme upturned end 10 of the flange 5 opposite to it and at the same time form the depressed bottom 11 and the flat end 12 of the,

combined'flange. It will be understood that this spinning can be only satisfactorily accomplished by using acollapsible mandrel such as described in the United States patent of Bodor No. 1,660,411.

The bottle is now completeas indicated in vertical section Fig.,13 and in the elevation in Fig. 14. It will, ofcourse, be understood that the proportions of the various parts are not exac but clearly indicate its formation. Although we preferably use a film of paste for the interwinding of the flange}; with the bottom edge of the bottle it will be understood that such film may be dispensed with but it is preferably used to insure againstany possibility of leakage.

We may also say that we preferably use a circular film of lubricating moisture 13 at the top of the body and a similar film 14 nearthe bottom of the body as indicated in Fig. 4 in order to facilitate the spinning of both the top edge and the bottom edge as hereinbefore described, by rendering the paper more pliable.

After a great deal of experiment extending over years we.have produced a successful machine and find in practice, therefore, that the steps indicated in the method hereinbefore described must be followed in rotation to produce an absolutely satisfactory bottle.

Although in this specification we describe two means of connecting the are shaped blank and the rectangular blank at the feed end, it will, of course, be understood that it is a matter of choice which one may be adopted.

What we claim as our invention is:

1. A blank for forming the neck and body portion of a paper bottle comprising an arc-shaped part adapted to constitute the neck or upper por tion of the bottle and a rectangular part adapted to constitute the body portion of the bottle, both parts being connected by a neck at the end designed to feed first into the machine.

. 2. A blank for forming the neck and body portion of a paper bottle comprising an arc-shaped part adapted to constitute the neck or upper portion of the bottle and having half the area remote from the feeding of the blank coated with an adhesiv and a strip extending in are shaped form from t e neck to such coated area, and a rectangular part adapted to constitute the body portion of the bottle and having half the area remote from the feeding end of the blank provided with an adhesive surface, both parts being connected bya neck at the end designed to feed first into the machine.

3. In a paper .bottle, a neck portion, the top of which is provided with an annular enlargement and the material of which is wound upon itself to a thickness of at least two plies, the upper end of the neck portion being intumed upon itself to constitute a circumfere tial reinforcement at the top of the bottle, a portion, the material of which is wound upon itself to'a thickness of at least two plies, a closure disc engaging seat formed inthe inturned upper part of the neck portion, and longitudinal reinforcing ribs formed in the tapered portionof the body so that the depressions between the ribs extend up into and form the corrugated portion extending up into the annular enlargement of the neck for the purpose specified. '1 4. In a paper bottle, having the upper portion,

tapered and formedwith'a neck of less exterior. diameter than the major portion, and intumed:

ing corrugations extending upwardly into and forming an annular enlargement of the neck.

LYDIA B. KOCH. ANDREW BODOR.

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