US139870A - Improvement in paper bags - Google Patents

Description

'UNITED STATES GEORGE E. oEINNooK, 0E. BEOOKLYENEW YORK.

IMPROVEMENT 4IN PAPER BAGS."

Specification forming part of Letters Patent'No. 139,870, dated June 17, 1873; application filed April 2, 1873.

OASE A.

p ness in the different parts of the bag.

By this means a bag of greatly improved construction, considered as an article of manufacture, is obtained, as one possessing the valuable characteristic of being capable of bearing an undefaced label or other readingmatter imprinted upon each side.

Figure l is a plan view of the paper blank from which bags made according to my invention are fabricated. Fig. 2 is a side view of one of the said bags. Fig. 3 is a top view, on

` an enlarged scale, of the same. Fig. 4 is an.'

edge View of the same-in other words, a View taken at right angles to'Fig. 2. Fig. 5 is a side view, showing the blank as partly folded in the formation of the bag.

In the manufacture of my improved paper bag I take paper of the kind and quality commonly used for similar articles, and by any suitable means form it into slips of a width proportioned to the size of the bag to be made, and of any desired length. This strip is of such width as toprovide for three portions, the respective limits of which are indicated by the dotted lines a and b, in Fig. l. Those parts, designed to be folded in the lines just mentioned, comprise the central portion A, the broad lateral portion B, and the narrow lateral portion c. By means of appropriate machinery (on which I am now preparing application for separate Letters Patent) the central portion A has cut in it at intervals the oblong transverse openings D. These openings, when the strip or blank is divided transi versely in the dotted lines f, form scallops g hin the ends of the separated sections, the purpose of which will hereinafter appear. Either before or after the formation of the openings D the lateral part c of the blank is i folded inward upon the adjacent edge of ther central portion A. After the formation of the openings D, the broad lateral portion B is in like manner folded inward upon the central portion, its outer ...edge lapping upon and external to the infolded portion c, to which it is pasted by suitable pasting devices. Either before or after,` but preferably before, this pasting the blank is cut across in the lines f, and, as previously specified, centrally through the oblong openings D. Each of the lengths or sections into which the pasted blank is thus divided now constitutes, as it were, a flattened tube open at either end, and with one of its sides scalloped at one extremity as at g, and at the other as at h. i

It will be seen that these scallops in the one side of the flattened tube, so termed, expose the inner surface of the opposite side. This inner surface is pasted by appropriate means and the end brought over and fo'lded down upon the external surface of the first-named side, which firmly attaches the pasted portion to the latter and thereby closes such end of the flattened tube, so called-in one case to form or close the bottom of the bag, as shown at 1' in Figs. 2, 3, and 4; in the other to seal the top thereof' when required.

Gare must be taken, in folding over and .pasting the bottom of the bag, as just described, to turn the fold upon that side of the bag opposite that to which the narrow lateral portion c is pasted in closing the lateral edges of the blank together, as hereinbefore set forth. The said portion c, moreover, may be folded externally upon instead of within the contigu-` ous and attached edge of the other portion B of the blank. The fold at the bottom of the bag, being on the side opposite to that thickened at one edge by the pasting of c and B, as

aforesaid, avoids the excessivethickness which would otherwise occur from the pasting to# gether of a greater number of layers' of paper. y

flexibility at those portions where overlapping n edges are joined; furthermore, the sides both being without seam or lap where it is desirable to print labels or other descriptive matter, bag formed from the blank represented in Fig'. such printed matter is rendered more neat in 1, ,and folded and pasted at one edge and at appearance than is the case with bags made bottom, specifically as herein set forth. in the ordinary way with a seam or edges overlapped. at or near the central portion of one GEC. H. CHINNOCK. side. Witnesses:

What I claim as my invention is- Y JAMES A. WHITNEY,

As a new article of manufacture, the paper W. E. PARTRIDGE. i

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