US998319A - Paper bag. - Google Patents

Description

J. P. AMES. PAPER' BAG." APPL'IOATION FILED HAY 27. 1908.

:Patented July `18, 1911.

Mfg/fm reinforcing strip of JOHN F. AMES, OF CLEVELAND, OHIO.

Ill-AFER BAG.

naaste.

Specification of Letters Patent.

Patented July 18, 1911.

Application tiled May 27, 1908. Serial No. 435,219.

To all whom 'it may conc-fm: e

Be it known that l, JOHN F. AMES, citizen of the United States, residing at Cleveland, .in the county of Cuyahoga and State of 0hio, have invented new and useful lmprovements in Paper Bags, of which the following is a specilication.

My invention relates to the manufacture of paper bags.

Paper bags are now used extensively for flour, cement and other things put up in the form of original packages. lt is common to iillthe bag, and after being filled, to tie the mouth of the bag. ln order to tie a paper bag, it requires the bag being made several inches longer than otherwise neces sary, thereby resulting in the use of perhaps 20% more material than would be required if these bags could be made just the right length and sewed. lt is not possible to paste the mouth of a lilled paper bag, because it would not only take too long for the paste to dry, but with many substances of a deliquescent or hygroscopic naturehsuch as salt, the bag would soon open. Neither can the top of an ordinaryv bag be sewed up, because the stitches would tear the paper.

The object of the present invention 1s to providea, strong paper bag suitable for packaging Hour, cement, salt, sugar, charcoal, etc., and which bag can be sewed, 1n contradistinction to pasted bags, or cloth ba s.

nother object is to provide a waterproof bag, the edges of which may be pasted, 'if desired, and one or both ends sewed.

The invention consists of the parts andthe construction and combination of parts as hereinafter more fully described and claimed, having reference to theI accompanying drawings, in which Figure l is a Fig. 2 is a like 3 is a view of a water-proofed bag.

ln practicing my invention,'l[-employ a suitable grade of paper, preferably, tough. manila; and this paper may be if desired, subjected to any suitable treatment, as paraliining, to render it water-proof.

rlhe bag may be made up in several ways. As shown in Fig. 1, one end, as 2, and one side, as 3, are sewed up on an ordinary bag sewing machine; the inside of the mouth of the bag first having applied to Ait a suitable any appropriate lmaterial, as a fabric or cloth 4t. In sewing the bag, so as to paper; and I desire it to be understood that perspective view of the bag. view, modified form. Fig.-

side of the bag, one edge of the paper from which the bag is made is allowed to extend beyond'the other edge, soA as to form the marginal strip 5, which strip is later folded over and pasted down; as likewise is the end margin 6; thus giving a finished appearance to the bag. The reinforcing strip 4 at the mouth of the bag permits of the bag being easily sewed up on a machine, after filling.

l/Vhere a water-proof paper bag is used, it is practical, under some circumstances, simply to paste the sides and ends, applying a reinforcing strip'around the mouth of the give sullicient body` to sew through after the bag has been filled. Again, as shown in Fig. 2, the reinforcing' strip 4 may be extended not only across the mouth of the bag, but. down the sides and across the bottom; thus making a very strong bag which can be sewed up, and inV which there is no danger of .any part tearing out.

The invention comprehends essentially .a paper bag which is reinforced along one or more of its edges which are to be sewed; of course, the underlying principle of which is apaper bag which can be sewed, and which bag will always be essentially a paper bag.

Under some circumstances, instead of using a cloth strip, as l or 4, for reinforcing purposes, l may employ an eXtra thickness of heavy paper, or specially treated by a reinforcing strip of fabric, l mean anything which will perform the desired function, and which is the equivalent in this environment of the clothstrip specifically mentioned.

The chief difficulty in making a waterproof paper bag or in using a water-proofed paper for bags, is the lack of a paste strong enough to insure the pasted edges of the paper withstanding the strain. Most waterproof paper has more or less oil init, which operates against the proper taking hold by the adhesive, and a very slight strain separates the united edges of the paper. Paper that is not water-proof can be' pasted so strongly that the pasted edges'or the over- 105 lapping portions of the pasted vedges are stronger than the body of the paper itself.

One purpose of the present invention 1s the manufacture of a bag pasted at the sides and one end prior to water-proofing. After the bag is made up the whole bag may be Water-proofed by the use of paraffin, oil,

, mitting of the sewing of varnish, or other suitable water-proofing agent, or just the edges of the bag may be water-proofed; the mouth of the bag.- in all cases being preferably reinforced with a v 1. A new article of manufacture comprising a paper bag having a reinforcing, strip permanently attached inside of the ag at its mouth end to permit of the sewing of the bag after filling, without tearing the paper.

2. A'sa new article of manufacture, a

waterproof paper bag sewed at the edges, the edges folded over the sewed part and pasted down, and reinforcing means permanently attached to the bag at the mouth of the bag, andl prior to filling and sewing, to permit the bag to be sewed up after lling.

3. A new article of manufacture comprising a paper bag made of an unwaterproofed sheet with the side edges and ends pasted, said bag having a strip of fabric of a different character permanently attached inside of the bag andl at its mouth end and with the edge of the strip substantially flush with the mouth edge of the bagsaid strip pere bag after filly mg, strip concealed when the bag is sewed.

4. A new article of manufacture comprising a paper bag made of an unwate'proofed sheet with the side edges and ends pasted, said bag having a stripvof fabric of a different character permanently attached at its mouth end to permit of the sewing of the bag after lling, without tearingJthe paper, said pasted bag when completed eing treated With a waterproofing composition.

5. A bag made from a sheet of paper to one side of whichY sheet is pasted prior to folding, a reinforcing strip of fabric disposed at one end of the bag when folded, the side edges of the sheet fianking said reinforcing strip, being folded and pasted to form a tube, and the end of said tu-be oppo` site to that containing the reinforcing strip being closed.

6. A closed sack comprising a paper body portion with a cloth reinforcing striparound the inside edge of the mouth of the bag, and a line of stitching passed through the paper body portion and cloth strip for closing' the sack. g

Intestimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOHN F. AMES.

Witnesses:

CLARE H. WHITNEY, S. A. COK.

lwithout tearing the paper, and said f

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