US47376A - Improvement in paper bags - Google Patents

Description

` NlUNrTED STATES BENJAMIN sMIrH, ADAM s-MITH, AND JAMEs AEKELL, or CANAJOHAEIE, t

PAW'

NEW YOEK. W t

IMPROVEMENT IN PAPER BAGS.`

To all whom it may concern:

Be it known that we, BENJAMIN SMITH, ADAM SMITH, and J AMEs AEKELL, of Canajoharie, in the county of Montgomery and State of New York, have invented new and useful Improvements in Paper Bags; and we do hereby declarevthat the following is a` full, clear, and exact description thereof, which will enable others skilled in the art to manufacture the same, reference being had tothe accompanying drawings, forming a part ot' this spe citication, in Which- Figure l is a side View of a bag distended, aswhen filled. Fig. i2 is a bottom view of the saine. .Figs.3,4,5,6,and6*,represcntthelower portion of the bag in different stages of the manufacture. Fie. 7 is a side view ofthe lower portion ot' the empty bag folded iat for trailsportation or the market. Fig. 8 is an edge View ot' the. same.

Similar letters of reference indicate like parts.

This invention consists in a novel mode of producing the bottom of a paper bag, whereby it is made double, and, when the bag is distended, it is caused to present a square or quadrangular form.

To make the bag, We first take a piece of g paper of quadrangulary form of the requisite length and width, and t'old it to produce a longitudinal lap, ti.her close to the fold or along an5T other portion of one side, paste the lap, press it, and allow it to dry. A tube, A, of the width ot' the lap is thus formed. This tube is then laid tiat and its two lower corners turned in at angles of forty-tive degrees to the sides, as shown at a a in Fig. 4, till the bottom edges, b b, meet, or nearly meet. The lower part is then folded over, as shown at U in Fig. 5, to make the point dV lap over the turned-in portions i i of the side edges. The bottom is then unfolded, when it presents the creased appearance shown in Fig. 6, in which the creases are represented by dotted lines, those formed in the tube by the folds a and c being indicated by similar letters, and those formed in the turnedin corner-pieces d d in making the fold c being indicated by the letters c c. Two vertical cuts, e e, are then made from the bottom in or ia little inside of the creases c c', upto the diagonal creases a a. The portions ot' the eornerpieces d d outside of the cuts e `e arethen turned in vertically from horizontal lines between the points where the said cuts meet the creases a ct to produce the two creases g g to meet Hthe creases c c, and so form the square bottom,`

v the portions of the lines a a, above the cuts e c, as shown in dotted outline in Fig. 6*, and the two portions ff, one on each side of the tube between the cuts e c, are then, one after the other, turned outward and back over the p tube, and their inner sides (now turned out- Ward) pasted, and each, after having been pasted, is turned,` in between the portions d d. The said portions f f are thus pasted `to each other and to the portions d d, and these portions produce the quadrangular bottom when the bag is distended by lling.

lt' in the tir-st folding ot' the corner-pieces d d the edges b b be brought close together,

and the fold c be made at a distance from the t point d. equal to the distance from c to t' z', the whole of the quadrangular bot-tom of' the bag will be composed of four thicknesses ot' paper.

We are aware that it is common to crease` rangular paper bag with a double bottom pro-` duced by folding and pasting inthe particle lar manner herein described.

BENJAMIN SMITH.` ADAM sMITH. ,JAMES AEKELE;

Witnesses M. NEAHR., G. A. UTMAN.

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