US105877A - Improvement in paper bags - Google Patents

Description

N Time-ED fSfrA'rEs l ALFRED ADAMS, on cHAeRiN FALLS, onto.

IMPROVEMENT IN PAPER BAG-S.

Specification forming part of -Letters Patent No. 105,87 7, dated August 2, 1870.

To all whom it may concern:

Chagrin Falls, in the county of Cuyahoga and State of Ohio, have invented certain Improvements in Paper Bags, of which the following is a specification: y

The object of this invention is to produce a satchel-bottom paper bag, the bottom oi which shall be readily folded into the most desirable form, securing greater facility and therefore greater economy in its manufacture, and thereby obviating the most objectionable features of all kinds of Satchel-bottom bags as now made. These results are secured by the peculiar construction of the bottom, as hereinafter explained, reference being had to the accompanying drawing, like letters representing like parts'.

Figure lrepresents a portion of a continuous sheet of paper of which the bags are made, which is divided into sheets of the'desired length at the irregular lines A A, the sheet between the lines A A being of sufficient length to makev two bags. Fig. 2 `represents the sheet folded into atube, they edges of which are lapped and secured by paste or its equivalent, at the longitudinal lines B. llt will be noticed that one side of each end of the tube projects beyond the other side, this result being accomplished without'any loss of paper. The tube is then divided at the dotted line B, orthe sheet -maybe thus divided at the dotted line B, Fig. l, before the tube is made, making two tubes of like shape and size, each of which is afterward cut longitudinally at the lines C C, to facilitate the folding of the bottom, andfinconnection with thev projecting side, as explained, securing to the `bottom its peculiar construction, the great advantages of which will hereinafter appear.

Fig. 3 represents the first fold `in forming theA bottom, which is made `by separating the two sides of the end, the side Lbeing held in its original position, and the shorter side L' being folded back over a thin rigid plate lying dotted line e down-upon the lateral sides F F after the application of paste, or its equivalent, as shown in Fig. 4. f

The shorter sideis then folded at the line a! over upon the lateral side F F, and the lower4 edge ofthe longer side L, as shown in Fig. 5, bringing the upper edge of the shorter side L up to and leven with a horizontal line drawn through the middle vof the bottom, thereby 4 enabling the two sides vof the bottom to be easily folded together, as in Fig. 6, the upper edge of the shorter side L forming the creasing line.

Fig. 7 represents the bag when distended or filled.

'The great advantages of my invention are these: It Will be readily seen that, by making one side of the end of the tube longer than the other, these* sides can be separated, preparatory to folding the bottom, with more ease and rapidity than if they were of even length, as is the case in all other satchel-bottom bags, thus largely reducing the expense of manufacture.

And', furthermore, when the bottom is made the lap or double thickness formed by the bringing together of the sides L and L', lies .just outside of the middle or dividing line of the bottom, and forms a creasing line for the last or finishing fold. And, when the last fold is made, there being one or more thicknesses of paper less than in other bags at the point where the crease or fold lies, the tendency of thebottom to spring back or resume its former shape is entirely obviated. This tendency heilig so great an obstaclein the manufacture of Satchel-bottom bags that the greater portion of them are made and considered finished, as shown in Fig. 5,-without folding thetwo sides of the bottom together, notwithstanding the great objection thereto, to wit, the extra thicknesses of paper, caused by the lapping of one-half of the bottom down upon the side of the bag, almost invariably interferes with the printing or branding ot' the bag, making many imperfect impressions, as well as being veryT destructive to the types used, and also to the tympan of used without being branded by printing, therrrcE.

gressively shown in Figs. 2, 3, 4, and 5, to form Satchel-bottom bags.

ALFRED ADAMS.

Witnesses:

GEORGE A. NOLEN, H. GARRETT.

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