US902754A - Paper receptacle. - Google Patents

Description

IGr. W. MAXWELL.

PAPER REGEPTAGLB.

I APPLIUATION FILED SEPT. 23, 1907.

1 l l I I f UNIT T OFFIQE. i

GEORGE W. MAXWELL, OF SAN FRANCISCO, CALIFORNIA.

PAPER RECEPTACLE.

, Application filed September 23, 1907.

' cisco and State of California, have invented certain new and useful Improvements in Paper Receptacles, of which the following is a specification.

My invention relates'to receptacles made of paper or similar fibrous flexible material, and which are more especially intended for containing liquid or semi-liquid contents, although adapted to the reception of dry products as well.

In its especial relation to some kinds of solid and liquid contents, the object of the invention is to provide a receptacle'of such character and construction that any seepage of the contents through the walls 4can be prevented, as well as exterior discoloration, de-

facement of labels when used, and the giving off of odors from odorous contents.

Another object is the providing of a simple cheap and thoroughly liquid tight containing vessel. l

A receptacle constructed according to my invention, has an open ended tubular body formed by wrapping or winding a blank of proper length with a plurality of turns upon a mandrel, the walls of such'body thus having a plurality of thicknesses. The body is also formed with special reference to the insertion and liquid-tight securing of bottom and 4cover disks, and the whole construction results in a simple, cheap, air-tight and liquid tight paper receptacle.

An embodiment of my invention is hereinafter described, and is shown in the accompanying drawing, in which: Figure l is an elevation, broken toshow a vertical section of one end. Fig. 2 is an end view of the receptacle'body showing its appearance before it is beaded and crimped, and is also equivalent to a cross section of the body at any plane between its ends. Fig. 3 is a cross section of one of the end disks.

The body l of the receptacle is formed from a blank of paper or like fibrous liexible material of suitable thickness, and which is of such length that when wrapped around a forming mandrel at least two complete turns will be required to produce the open-ended tubular structure shown. ,The body, thus formed, has therefore at least two complete closely fitting thicknesses of material, with its free ends overlapping but separated by Specification of Letters Patent.

Patented Nov. 3, 1908.

Serial No. 394,134.

material intermediate between them, as

shown at 2, 3, and 4 in Fig. 2.

In order to make a smooth interior jointv and uniform inner circumference, the inner free end of the blank is beveled or other- Wise reduced to an edge shown at 5; and although it' is not considered necessary in practice, the outer end can also be reduced in like manner so as to make a smooth eX- terior joint. The parts 2 and 3, and the parts 4 and 3 are secured together by adhesive material between them, and the receptacle is rendered waterproof by a coating of paraliin applied to the inside after the body has been formed.

At each end the -body of the receptacle is flared outwardly as shown at 6, and is then turned over or crimped upon the end disk 7." A cross section of one of these disks is shown in Fig. 3. It has a beveled edge which when it is inserted bears with a wedging action against the inner flared surface of the receptacle body, for its own full thickness; and when held in place by the crimping of the receptacle body provides a practically non-leakable joint. I can however, in order to still further guard against the possibility of leakage, coat the beveled edges of the disks with parain or with some proper adhesive composition. To guard against accidental displacement of the disks by rough usage, as in shipping for example, and to form a more durable air-tight receptacle, I prefer to place a thick narrow layer of 'waterproof adhesive material over the seam between the top of the disks and the crimped portion at 6, thus cementing the crimped portion of the disks.

A receptacle constructed according to my invention possesses certain special advantages in addition to the ordinary advantages pertaining to the stiff, practically unbreakable and liquid-tight structure described. `When the receptacle contains either solid or liquid contents to which a parain coating is not impermeable, such as lard and coal-oil, an ordinary single-walled paper vessel permits a seepage by capillary action which is evidenced by discoloration of the outside of the vessel and of any labels which it may bear, as well as by the lodor of such contents. This tends to impair the salability of packages of that character, and toy prevent the use of paper receptacles for such substances. it is possible to coat so much of the blank With a vessel of double thickness `as forms the outer surface of the rst lap, and Which is indicated bythe line beginning at and terminating at y in Fig. 2 with some substance preferably Waterproof, and impenetrable by the particular contents, such substance being entirely concealed .between adjacent surfaces of the double thiclc ness. This coating therefore never comes into -contact with the actual contents of the receptacle, and at the same time effectively 'prevents such contents from seeping through and discoloring the outside. As the contents are protected from actual Contact with such coating by one Whole thickness of the body, and as there is another between it and the exterior, it is possible to use for such purpose substances Which might ordinarily be considered objectionable by reason of their odor or from other causes.

What I claim is:

In a receptacle of ibrous material, a tubular body made inyone piece With a double Wall, and having its ends flared and crimped,

GEORGE W. MAXWELL.

l/Vitnesses:

L. G. MAXWELL, F. M. BARTEL.

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