US1961947A - Urn bag - Google Patents

Description

Patented June 5, 1934 UETED STTES PATENT OFFICE 7 Claims.

My invention relates to bags used in coffee urns and the like. Bags of this character have been made in a variety of ways. Most of such bags have been fabricated from a plurality of pieces of fabric, the patterns of which have usually been designed with the idea of economy of material or the shape of the bag. When the parts of such bags are sewn together the seams provide lodging places in which the used grounds will accumulate and thereby cause the bag to become unusable in a shor time. Furthermore, in devising the bags wh'ch have heretofore been available, no provision is made for interchangeability or adaptability. By interchangeability and adaptability is meant that the bags are usually made in one size for a specified ring and another size fora ring of different dimensions.

The bags of which I am aware do not provide a perfectly shaped downwardly bulging bottom, due to the fact that the seams produce pointed effects and in use cause bulges in the sides of the bags as well as in the bottom. It is also a fact that such bags hang in a coffee urn without regard to symmetrical shape.

. In devising my present bag I make provision for interchangeablity and adaptability, that is, a bag of a given size is readily adapted to be used on rings of various dimensions and thereby save the user the expense and necessity of having to carry several sizes of the bags for different rings.

With my bag the body porton is integral and entirely seamless, and it is formed from a single piece of material being provided around its edge with a tubular hem for threading onto the urn ring. In order to give the bag the desired shape as well as its interchangeability the pattern for the body of the bag is made from a piece of fabric that is initially flat and is cut circular in outline with a diameter larger than the diameter of the ring on which it is used. The hem is likewise formed from a flat piece of material that is initially flat and is attached. to the circumferential edge or periphery of the body pat- 45 tern. The stitching which attaches the hem to the bottom pattern is done while the parts are spread out flat upon the bed of the sewing machine. This is a decided advantage over the manner of assembling the bags heretofore used because of the fact that they are usually shaped and the material of necessity has to be bunched up While the stitching is being done. The present bag when completed will be fiat and does not require folding for packing, which further distinguishes it from the prior bags because they require folding several times in order to produce a flat article for storage. Furthermore, it will be seen that the parts of my improved bag are assembled complete in one operation thereby affording a saving of a considerable portion of the time and labor required for the assembly of other urn bags some of which require as many as four separate operations.

The bag structure whch I have devised is extremely simple in order to assemble; its parts are readily made and the bag is effective in accomplishing the purpose for which it is designed. It is, as compared to other bags, very much more economical to produce; it is effective in performing its functions when used in a cofiee urn; and a single bag is capable of being used on different size rings.

I prefer to carry out my invention and to thereby accomplish the numerous objects thereof in substantially the manner hereinafter fully described and as more particularly pointed out in the claims. I will now refer to the accompanying drawing that forms a part of this specification, in which;--

Figure 1 is a perspective showing my improved bag mounted upon a ring for insertion in a coffee urn.

Figure 2 is a fragmentary view of a portion of the hem and body drawn to a larger scale than Figure 1.

Figure 3 is a view showing the flat body portion and the hem portion in the course of assembly.

Figures 4 and 5 are views in side elevation showng the adaptability of my improved bag to rings of different dimensions.

Figure 6 is a plan view of the pattern of the body drawn to a much reduced scale.

Figure 7 is a plane view of the portion of the pattern for the hem drawn to approximately the same scale as Figure 6.

The drawings are to be understood as being more or less schematic for the purpose of illustrating a typical or preferred form in which my present invention may be made. In the drawing like reference characters have been employed to designate like parts wherever they appear throughout the different views. Figure 1 shows my improved bag mounted on an urn bag ring similar to that disclosed in United States Letters Patent No. 1,863,418, which was granted to me under date of June 19, 1932, but it will be understood the improved bag may be used upon a variety of types of rings, such for example as the simplified form shown fragmentally in Figure 2.

As above stated, my improved bag, due to its novel and special construction, is so adaptable that a bag of a given size may be used upon rings of different diameters as shown by a comparison of Figures 4 and 5, wherein it will be noted that the larger the ring the shallower will be the depth of the bag, and vice versa. It follows also that if the user, having an urn and ring of a given size, and desiring a deep or a shallow bag may secure such by selecting a bag of the proportionate diameter to produce the desired depth or shallowness.

Obviously, if a shallow bag is used in a coffee urn the ground coffee will extend or spread over a greater area of the bag than when a deep bag is employed, but the water, having less distance to travel through the ground coffee, will seep more rapidly and absorb less of the flavor from the grounds than where a deep bag is used because in the latter case there will be a much thicker layer of ground coffee through which the water must percolate.

The bag is made entirely of fabric of the usual or desired mesh and the patterns, of which there are only two, are flat and of conventional shape. The main or body portion 10 of the bag is of circular outline as shown in the miniature pattern, (Fig. 6), and the portion that forms the tubular hem 11 is a straight piece having parallel longi tudinal edges as shown in the miniature pattern, (Fig. 7) which is approximately the same scale asFig. 6.

The hem pattern is of such a length that it extends the entire circumference of the circular body portion.

The bag is fabricated in the following manner: The straight portion 11 is laid fiat and folded on the broken line 12 (Fig. 7) by laying one longitudinal edge 13 over onto the other or parallel edge 14 so that said edges are superimposed. One end portion of this folded strip is then placed upon the circumferential edge 15 of the body member 10 with the superimposed edges registered with said body edge 15. The parts are then fed through sewing machine and a seam 16 is made using what is known as an over casting stitch. The ends of the tubular hem piece are not joined to each other with the exception of the place where the seam 16 is located. This leaves a slit or opening 17 (Fig. 1) through which an end of the circular ring 18 may be inserted to thread it through the length of the tubular hem.

As will be seen, the finished bag is flat with a tubular hem extending around its circumference to provide means for mounting the bag on the urn ring. The diameter of the bag, when flat, is much greater than the diameter of the ring, on which it is tobe used, and hence, when the latter has been inserted in the hem, both the hem and the adjacent portions of the bag body for a short distance below the hem will have a plurality of puckers or pleats which gradually vanish or smooth out towards the bottom section or segment of the body. This is clearly demonstrated in Fig. 1 of the drawing.

It will be seen the bag is made from only two very simple parts or patterns that are capable of being quickly and easily assembled and united by stitching on a sewing machine. On account of the fact that the bag is fiat, both before and after assembly, a quantity may be packed or stored in much less space than required for bags that must be folded one or more times to secure a flat article. Furthermore, since the bag diameter is much greater than the ring diameters, one bag may be successively used on rings of a variety of sizes. Incidentally it may be mentioned that the ring is usually of the wire split type with its ends removably connected together to provide a continuous structure for use in the urn.

When mounted upon the ring the body of the bag inherently shapes itself generally into a hemispherical form, or globular inverted domeshape hanging pendant below the ring, and, upon receiving the ground coffee and water, the adjacent lower portions of the puckering will flatten themselves so that a completely smooth structure is provided in which there are no seams or folds.

What I claim is:--

1. As an article of manufacture an integral bag for coffee urns having a one-piece body formed from a flat circular pattern, and a tubular hem at the edge thereof formed from an elongated straight pattern folded longitudinally and secured to the edge of the body pattern by stitching that unites two lon itudinal edges of the hem pattern to the circumferential edge of the body pattern.

2. An integral urn bag comprising an integral flat fabric body of substantially circular outline and a tubular hem extending circumferentially along the edge of said body, said hem adapted to be threaded in puckered arrangement upon a supporting ring of less diameter than the flat body.

3. An integral urn bag comprising a flat body of circular outline made from a single piece of fabric, and a tubular hem extending circumferentially along the outer edge thereof, said hem formed from an initially straight strip of material.

4. An appliance of the kind described comprising a flat one-piece bag body of circular outline, and a tubular hem connected to the circumferential edge of said body, in combination with a ring of less diameter than the diameter of the circular body threaded in said hem whereby the bag is shaped to the desired form by puckering the portion thereof adjacent and below said ring.

5. An integral urn bag comprising a flat circular one-piece body portion, and a tubular hem secured circumferentially thereto, said hem consisting of a straight fiat strip of fabric folded upon itself between its longitudinal edges and superimposed upon the edge of the body and the three edges sewn together by stitching that unites the body and hem.

6. An integral appliance for coffee urns comprising a flat circular one-piece body of fabric having a flat tubular extension around its edge, and a supporting ring of less diameter than said body inserted in said extension whereby to cause a puckering of the fabric adjacent said ring.

'7. A unitary urn bag comprising an integral one-piece body of circular pattern, and a tubular hem at the circumferential edge of said body, said body being normally entirely flat and seamless and adapted to be puckered on an annular support whereby to provide a pendent container of conventional hemispherical shape in use.

EDWARD H. SIELING.

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