US2178778A - Container and seam closure therefor - Google Patents

Description

Nov. 7, 1939. H. F. CURRY 2,178,778

GONTAINER AND SEAM CLOSURE THEREFOR Filed May 3, 1938 2 Sheets-Sheet l r 'leQe.

Nov. 7, 1939 H, F CURRY 2,178,778

CONTAINER AND SEAM CLOURE THEREFOR Filed May 3, 1938 2 Sheets-Sheet 2 V x l I K I q I Z-/5' I l .i. 1. I 14 E2 14 z a l [6.7.

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INVENTOR.

7 BY JM ATTORNEY.

Patented Nov. 7, 1939 UNITED STATES wrn PATENT OFFICE CONTAINER AND SEAM CLOSURE THERE- FOR Hugh F. Curry, Englewood, N. J.

Application May 3, 1938, Serial No. 205,666

2 Claims.

The object of the present invention is to provide a container which can be shipped in fiat form, which can be used advanta eously as a substitute for drums, barrels, tubs, pails, kits and baskets as customarily made, which will be cylindrical when placed in completed form, permitting the use of tight-fitting circular heads and enabling the lining of the containers with various materials or compounds such as paraflin, silica of soda, latex, paper, pulp, etc., which may be constructed of veneer, plywood, paper-board. or combinations of these materials; and which is formed without any overlapping.

One of the elements of the container is a seam in continuous strip form, in one or a plurality of parts, the strip or strips being formed with teeth which may be pressed through the material of the container.

These and other features of the invention will be described with reference to the accompanying drawings, in which:

Figure 1 is a perspective view of a container constructed in accordance with the invention.

Figure 2 is an enlarged view of the same, partly broken away.

Figure 3 is a fragmentary horizontal section on the line 33, Figure 2.

Figure 3A is a perspective view of one of the 0 two coacting seam-closing strips shown in Figures 1 to 3 inclusive.

Figure 3B is a view of the seam-closing strip adapted to co-act with that shown in the preceding figure.

35 Figure 4 is an enlarged vertical section taken through the base of the container at one side thereof.

Figure 5 is a view similar to Figure 4, showing a modified form of container base. 40 Figure 6 is a perspective view of a modified form of container.

Figure '7 is a perspective view showing an upper. end portion of a modified form of container constructed in accordance with the invention.

45 Figure 8 is a vertical fragmentary section taken on the lined-8, Figure 6.

Figure 9 is a view similar to Figure 8, showing a modified form of container head construction.

Figure 10 is a plan view of a container body 60 panel in flat form.

Figure 11 is an edge view of the same.

Figure 12 is a section of the structure shown in Figure 3 with the seam closing strips in closed position, effecting the abutment of the container 56 body 0688- Figure 13 is a view similar to Figure 12, showmg a modified form of seam closing joint.

Figure 14 is a transverse section on the line l4 l4, Figure 6.

Figure 15 is a transverse section on the line 8 l5l5, Figure '7.

The problem which was overcome by my invention was the provision of container elements including seam and head elements which enable the formation of the container body in flat 10 form with longitudinal seam closure member or members attached thereto and in such simple form as to be readily operated to form a completed tubular body in conjunction with base and head-holding elements of equally simple char- 15 acter, yet strong and rugged in construction, an adapted for quick attachment.

Referring to Figures 10 and 11, I have therein shown a body piece I in flat form which may be made of veneer, plywood, paper-board or other 2 suitable flexible and preferably springy material.

At the left-hand end thereof and extending vertically is a seam-closing staple strip 2, a fragment of which is shown in Figure 3A. The staple strip 2 is formed with a locking flange 2a: and is V-cut, the metal being bent outwardly to form the staple teeth.

At its right-hand end the body piece I carries a staple strip 3 bent to form a longitudinally extending hook flange}; connected to the main portion of the staple strip by a channel at 31:11:.

The staple strip is V-cut at spaced points and the metal bent outwardly to form the staple teeth t. The staple teeth of each staple strip are driven into the appropriate margin of the con- 35 tainer body piece and the teeth are then bent over as shown in Figure 3.

In forming the cylindrical body of the container, the body piece I is bent in annular form to bring the staple strips toward each other and the hook flange 3 of one staple strip is interlocked with the flange 2a: of the second staple strip in the manner shown in Figure 3. This will leave the edges of the strip spaced, and when the interlocking structure is pressed downwardly to final position as shown in Figure 12, the edges of the body piece will be brought into flrm mutual contact as shown in said figure. The body strip being of relatively yielding material, the drawing action of the staple strip will effect such compression at the seam as to afford a satisfactory leak-proof joint.

The base of the container may be closed by the instrumentalities shown in Figures 1, 2 and 4. In the said figures a base disk 4 is pressed downwardly within a metallic ring centrally formed with an inwardly projected bead 4m, in such manner that an area of the ring will project above-the disk. This area is then spun or pressed downwardly to form a top locking flange 5. Below bead 4a: the ring may continue as a vertical depending extension and, if desired, the base of the ring may be outwardly bent at 6 to form an abutment wall for the base of the container body. Over upon the depending vertical extension of the beaded ring may be slipped a plurality of channeled locking clips I, each clip near its upper end being V-cut and the metal bent in to form staple teeth 1a., which teeth are pressed into the container body and preferably bent over onto the inner face thereof, as indicated in Figure 4. In some cases, it will be-then desirable to form-each clip with spaced beads which may receive between them a reinforcing hoop preferably formed of wire as shown at 8, and at the point where the hook meets the interlocked staple strips, the latter may be grooved to receive the hook as indicated at the base of Figure 2.

In Figure 5 a modified form of base construction is shown in which the disk 4 and its immediate holding member 5 are of the same construction as outer face of the container body. Thus each clip Sis similar to that shown in Figure 4, except that it omits holding means for a ring such as 8.

The top of the container may be closed by a closure member H shouldered to abut the top of the container body.

, The top closure for the container may be of the construction shown in Figures 9 and 10. In that case, the closing disk II is moved within a deeply channeled and beaded ring I2, the channel being adapted to receive an upper margin of the container body. The closure disk will be abutted with a bead 12m of ring I2 and thereupon the lower margin of the ring at the point 12x1: will be bent or spun down upon the closure disk to hold it in position. The staple teeth l3 of'the ring may be driven into the wall of the container as shown in Figure 9. In practice, the vertical area of the channel ring carrying the teeth l3 may be spread outwardly so that the teeth may lie in their usual transverse position relatively to thechannel and be driven into the body of the container bycompression of the channel area of the ring against the opposite faces of the container body.

To enable ready removal of the container 010- sure and replacing thereof and, at the same time, provide means for holding the closure firmly in position, the channel ring may omit the staple teeth and in lieu thereof be formed with a plurality of slots to receive the upper and bendable sections of a plurality of holding clips xx, as,

shown in Figures 6 and 8. Each clip is preferably formed with a plurality of staple teeth driven into the wall of the container and when the closure disk is in position the upper ends of each clip may be bent over into locking position, as shown in rigidity to the structure, the hooked portion being indicated at I42: and the said staple strip as a whole being indicated at ll.

In certain types of light gauge containers the longitudinal seam may be closed by a staple strip consisting of a simple band as shown in Figures 6 and 14, at l5, each longitudinal margin of the band being formed with a plurality of V-cuts and the metal bent outwardly to provide spaced lines of staple teeth which are forced into the abutting margins of the container body I and preferably are headed over onto theinner face thereof.

In heavier types of container bodies, each longitudinal margin may carry a staple strip l6, Figure 15, reversely bent to form a hook, the hooks of the two strips lying opposite each other and adapted for connection by a double flange-connector strip I1. The hook flanges of members l6 and 11 will initially be bent outwardly so as to be capable of interlocking while the longitudinal seam edges of the container body I are separated and when the member I! is applied and given compression toward the container body the parts will assume the positionshown in Figure 1, wherein the edges of the container are closely abutted and held firmly in such position.

Each of the members IE will be formed with a plurality of V-cuts and the metal bent to provide staple teeth which will pass into the container body and will preferably be headed over upon the inner-face thereof.

Having described my invention what I claim and desire to secure by Letters Patent is as follows:

1. A container comprising a body piece of flexible material adapted to be bent into cylindrical form, a flanged staple strip having teeth connecting it with the body piece at one marginal edge thereof, a second staple strip having teeth connecting it with the body piece at, the opposite marginal edge thereof and formed with a flange adapted to interlock with the flange of the firstnamed staple strip, the said staple strips flanges being adapted, after interlocking and compression, to move the longitudinal edges of the body piece into mutual abutment.

2. A flat container body piece of flexible material adapted to be bent into cylindrical form, a flange staple strip carried by the body piece at one and margin thereof and having teeth imbedded into the body piece, and a second staple strip carried at the opposite end of the body piece and having teeth imbedded therein, the second staple strip being formed with a hook flange adapted to engage the flange of the first staple strip, the two'flanges being so formed as to cause a movement of the end edges of the strip toward each other when the flanges are compressed in a direction toward the cylindrical body formed by their interlocking.

HUGH F. CURRY.

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