US1341834A - Method of making drinking-cups - Google Patents

Description

A. N'EtSON AND B. B AVERY.. METHOD OF MAKING DRINKINGCUPS.

APPLICATION FILED APR-4| 191B.

Patnted June 1, 1920.

ALEXANDER NELSON,'OF ITEWARK, NEW JERSEY, AND BENJAMIN B. AVERY, OF NEW YORK, N. Y., ASSIGNORS, BY MESNE ASSIGNMENTS, T0 GERMPROOF CUP CORPO- RATION, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented June 1, 1920.

Application filed April 4, 1918. Serial No. 226,595.

To all whom it may concern:

Be it known that we, ALEXANDER NELSON and BENJAMIN B. AVERY, citizens of the United States, residing at Newark, Essex county, State of New Jerse and New York.

city, county and State of l\ew York, respectively, have invented certain new and useful Improvements in Methods of Making Drinking-Cups, of which the following is a specification.

This invention relates to sanitary drinking cups, the object of the invention being to provide an improved method of making the same whereby the cup'can be readily, quickly and inexpensively made from a blank so that it may be discarded after it is once used.

One of the objects of the invention is to provide an improved method of making sanitary drinking cups, which can be readily made in a machine by folding a severed blank in such way that the side edges of the blank will be efficiently locked by the folding of the blank, so as to prevent the premature separation of the edges in use. We are aware of the fact that it is not new to provide a drinking cup from a folded blank having its longitudinal edges folded a plurality of times so as to form a cup, such as shown in the Powers, Patent 1,107,347, owned by our company, but the primary ob ject of our invention however, is to improve that cup by so folding the side edges thereof that such side edges will form an efficient lock, and by so folding a projecting portion of the cup over such side edges that the locking of the side edges will be more effectively secured.

In the drawings accompanying and forming a part of this specification,

igure 1 illustrates. a severed blank, it being understood that the blank is severed from a'roll of paper carrying a sufficient amount of paper to permit the formation of a large number of cups; Fig. 2 illustrates the blank folded upon itself crosswise thereof; Fig. 3 illustrates another step in the formation of the cup, this figure showing the side edges folded once; Fig. 4 is a cross sectional view taken on line 4-4, Fig. 3; Fig. 5 illustrates another step in the formation of thecup; and Fig. 6 illustrates the completed. cup.

The first step after the blank is severed from the roll is illustrated in Fig. 2,the second step in Figs. 3 and 4, the third step in Fig. 5, and the fourth step in Fig. 6.

Similar characters of reference indicate corresponding parts in the several figures of the drawing.

The primary object of the present improvement, as stated, is the provision of an improved method of making a folded cup, by which the side edges are so locked that the separation thereof is practically prevented and for this purpose, after the blank 2 is severed from its roll, it is first folded transversely thereof as at 3, Fig. 2, and

along the dotted line 4 of Fig. 1 to form two substantially equal portions 5 and 6, except that the portion 6 is provided with a projecting flap 7 for the purpose hereinafter specified. After the blank has been folded in the manner shown in Fig. 2, its two side edges are folded together to form a comparatively narrow fold as 8 (see Figs. 3 and 4).

In the patent hereinbefore referred to, these side edges were then again folded upon themselves, but in the present improve- 'ment the side edges of the blank cup are then folded forwardl as at 9 upon, for instance, the front 0 the portion 6, thus bringing the folded side edges 8 in juxtaposition to the folded portion 9, and this is obtained in practice by tucking in the material as at 10, Fig.- 5, thereby simultaneously forming the fold 9 and bringing the side edges 8 in juxtaposition to such folded 'portion' 9, whereupon as the almost completed cup passes through the machine, it is crimped as at 11 thereby to maintain the folds in position. The last step in forming the cup consists in turning over the flap 7 upon the front of the portion 6, and this turned-over flap 7 also assists in maintaining the folded side edges locked as well-as providing a smooth mouth piece for the user.

From the foregoing it will be seen that each cup blank severed from a web of paperis of suflicient length to form two sides 5 and 6 and a projecting flap 7. I

In practice, the cup may be made liquid proof by the use of paraflin paper or by coatmg the paper with paraffin or some other suitable substance, and this may be helpful in preserving the edges of the paper as well as securing the locked edges in position.

In the formation of this cup' it will be observed that the two side edges of the cup are parallel, so that the cup has the same capacity from top to bottom, and it is unnecessary in the formation of this cup to cut the blank other than to sever the same from the roll in order to make the cup.

It will also be observed that the first fold as 8 is a narrow fold, and that by tucking in the two side edges to form the folds 9, this narrow fold is brought into juxtaposition with a part of the-fold 9, and in front of what may be considered the front of the cup, since the part 6 forms the front side of the cup in view of the fact that it carries 7 the mouth flap 7, and that the folds are not obtained in the present improvement by first folding a large portion of the side edges and then folding portions of such folded parts as the folds 8 are not subsequently folded, except as they are brought intojuxtaposition to the folded portions 9. Of course in practice, after the folded edges 8 are inadefa second fold along the dotted lines 12 could be made by turning the folded edges '8 backwardly upon the portion 6 ,along the dotted lines 12 and then forwardly along the dotted lines 13, but it is preferable in practice to obtain this wide fold by tucking in the edges in the manner hereinbefore described, whereby both portions 10 and 10" are brought together at the same time thereby saving one folding step in the manufacture of the cup.

It will be observed that'the first fold 8 is a narrow fold, while the tucked in fold is a comparatively wide fold. a

It will also be observedthat in forming this cup the side edges of the flap are simultaneously folded with the side edges of the cup proper or body of the cup, so that when the flap is folded down the folded side edges of the flap more efiiciently lock the folded side edges of the cup proper, while the necessity of performing a separate cutting operation to cut away these folded side edges of the flap is also avoided.

We claim as our invention:

1. The method of forming a drinking cup, which consists in folding a previously severed blank to form a pair of flat equally wide strai ht parallel side edges and comprising a ront and a back, one of the sides being longer than the other thereby to form a flap, then folding the side edges of the cup proper and theflap in one direction with a narrow fold, then folding such folded side edges in the opposite direction with a wider fold, then crimping such folded side edges,

and then folding over the flap with its folded edges crosswise of the cup and down upon the back of the fiat side carrying such 2. The method of forming a drinking cup, which consists in folding a previously severed blank to form a pair of flat sides comprising a front and a back, one of the sides being longer than the other thereby to form a flap, then folding the side edges of the cup proper and the flap in one direction with a narrow fold, then folding such fdlded side edges in the opposite direction with a wider fold, and then folding over the flap with its folded edges crosswise of the cupto lock such folded side edges.

3. The method of making a sanitary dri'nking cup, which consists in folding a severed blank cross-wise thereof to form a pair of flat sides comprising a front and a back with one of the sides longer than the other to form a flap, then folding the parallel side edges of the cup proper and the flap in one direction and then tucking in such folded side edges to form a fold extending in the opposite direction, and then folding over the flap with its folded side edges thereby to lock the folded side edges of the cup proper. I

Signed at New York, N. Y., this 26th day of March, 1918.

' ALEXANDER NELSON. BENJAMIN B. AVERY.

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