US2132669A - Paper bag - Google Patents

Description

Oct. 11, 1938. l n

Filed Jan. 22, 1936 Arm/ME ya.

V.PatentedrOc-t. 11k,l 1938y PATENT OFFICE PAPER BAG u d y i `v Howard As'Wolf, Philadelphia, Pa., assignor `to `Louis Wolf, Elias Wolf, Howard` A.

Wolf, and

VWalter L. -Wolf, copartners, doingrvr business as W01! Brothers. Philadelphia, Pa

Application yJanuary 22, 1936, Serial No. 60,151

comme (ci. 229-68) Thisinvention relates to van improvement in paper bags and more particularly to paper bags of the envelope type and provided with means `aiording a handle, adapting them to be readily carried, '.andwith' lockingmeans for the closure Heretofore bags of the type `to which this invention relates have been" variously constructed and provided with various forms of carrying or `handle means. However, in general such bags have been open to Vvarious disadvantages arising largely from the necessity for providing special reinforcingmmbersin connection withthe provision of carrying or handle means. 1` y Now, in accordancewith this invention, a paper bag havingcarrying or handle means is provided and which from its novel structure is highly eiiicient and of superior strength in connection with the handle and closure ap locking means.

The bag in accordance with this invention is constructed by tubing and cutting from a strip of paper with the use of any well known type of mechanism suitably adjusted to produce the novel structure.

Having now indicated in a general way the nature and purpose of this invention, I will proceed to a detailed description of a preferred embodiment thereof with reference to the accompanying drawing in which: Figure 1 is a plan view of invention, complete except for the handle and ap locking means.

Figure 2 is a vertical sectional view on line 2-2 Figure 1. f

Figure v3 is a cross sectional' view on line 3-3 Figure 1.

`Figures 4, 5 and 6 are views of the top portions ofbags showing various forms of handle and ilap lockingr means. t

Referring more particularly to Figures l, 2 and 3, tlve bag shown comprises a front wall A, a rear wallB, a bottom closure ilap C'formed by an exa bag embodying this provision of tension of the front wall and a top closure flap D formed by an extension of the rear Wall B.

Tlie bag is formed from a strip of paper by folding on lines spaced from the edges of the strip a distance such that the folded portions overlap throughout the greater part, for example,

more than half of the width of the bag to form the rear wall B and the top closure ap D. Thus, the rear wall and top closure flap are formed by the overlapping members e, e.

The overlapping members e, e are secured together along their free edges by means of lines of adhesive f, l, being desirably unsecured interto adjacent its open end, Adjacent to the of the lines of adhesive f.' f,

i formed from,

`be observed from an mediate their edges from the bottom of the bag open end of the bag and throughout the top closure ilap .D the overlapping-members e,-e are secured to gether not only adjacent to theiredges` bymeans but, also intermediate their` edges by means of lines of adhesive f', f'. Any suitable form of adhesive desired or well known in the.` art may be used for securing the members e, e as descri The front Wall A- of the bag .is throughout of a "single thickness, being formedin the folding by.

the'centralportion of thestrip. Adjacent to the cured to the inner surface o1' the front wall. The reinforcing strip may be secured in any suitable manner` by means of an adhesive. The reinforcling. strip will be desirably of a width not in excess" of and desirably slightly less than the` Width of the overlapped portion of the back wall.'

. The bag as described above may be provided" with any desired form of handle and iiap locking means, as exemplified, for example, by the structures of Figures 4, 5 and 6. Thus, as shown in Figure 4, aligning apertures of less width than the overlapped portion of the back wall may be formed in the front and back walls of thel bag adjacent to' the' open end, by incompletely cutting through the front wall, the reinforcing l.member a and the overlapping members e, e on the line h without removal of the cut material, which forms flaps lc, and forming a locking tongue i by cutting in from the free edge of the closure ap on the lines 7', i, spaced and directed so that the tongue i will extend laterally beyond the ends of the apertures formed by cutting on the line h. As will inspection of Figure 4,. on folding down of the closure ilap the tongue i may be passed through the apertures formed by the cutting on line h, together with the flaps k. Since the tongue iis of greater lateral extent than the aligning aperture on passage of the ilap through the apertures it will resist return and hence act to lock the closure flap in closed position. The ap lc passed through the aperture together with the tongue i will act to tie the front and back walls of the bag together and to aiord a bearing for the fingers, which when the bag is closed may be passed through tile aligning apertures for carrying the bag.

'I'he form of carrying and locking means shown in Figure 5 is identical with that shown in Figure 4, except that` the materialy forming the tongues k, Figure 4, is removed and the parts are indicated by similar reference characters primed. In the structure shown in Figure 5, the locking tongue i is passed through the aligning apertures, formed by the cutting out on line h', and serves toretain the closure ap in closed position and to provide a bearing for the fingers when passed through the apertures for carrying the bag.

The structure'shown in Figure 6 involves a top closure flap D having a curved free edge and carrying and locking means are provided by cutting through the flap and body of the bag on lines l, l positioned in the flap and body of the bag so as to form aligning apertures and flaps m in the body of the bag and an aperture and flap m' in the flap, which on folding ofthe flap to closing position will align. On closure of the bag the aps m and m' will be folded to the rear of the bag and will act to tie the walls andrclosure flap together, while at the same time acting as a bearing for the fingers inserted through aligning apertures in carrying the bag.

It will now be observed that by virtue of the overlapping members e, e andthe arrangement for securing them, the rear wall of the bag is of great fiexbility and strength and, at the same time, the finger apertures and the locking tongues in the flap are reinforced and rendered of great strength and efficiency without the necessity for providing any separate reinforcing member.

It will be appreciated that various modications may be made in the structure described herein by way of illustration without departing from the scope of this invention.

the length of the closure What I claim and desire to protect by Letters Patent is:

1. A paper bag formed by folding a blank including front and back walls, a permanently secured closure ap at one end of the bag and a. foldable closure flap at the other end of the bag, aligned finger openings in the front and back Walls, the back wall and the foldable closure flap comprising members folded oppositely and laying in overlapping relation throughout the major part of the width of the back wall and of the foldable closure flap, the overlapped members forming the back Wall and closure flap being secured together by' lines of paste adjacent to their edges and being additionally secured between their edges by a plurality of closely spaced lines of paste extending only in the area surrounding the finger opening in the back Wall.

2. A paper bag formed by folding a blank including front and back walls, a. permanently secured closure flap at one end of the bag and a foldable closure flap at the other end of the bag, aligned finger openings in the front and back walls, the back wall and the foldable closure flap comprising members folded oppositely` and laying `in overlapping relation throughout the major part of the width of the back wall and of the foldable closure flap, the overlapped members forming thevback wall and closure flap being secured together by lines of paste adjacent to their edges and being additionally secured between their edges by a plurality of closely spaced lines of paste extending only in the area surrounding the finger opening in the back wall and flap.

HOWARD A. WOLF.

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