US2119730A - Container and method of making same - Google Patents

Description

June 7, 1938. T, WALTER 2,119,730

CONTAINER AND METHOD OF MAKIN SAME Filed Nov. 18, 1936 INVENTOR ATTORN EY 0/2611 7. mazmzarenext cut into appropriate lengths and bent asupon a mandrel or otherwise, to the form shown.

" Patented 1...... 1-, 1938 I f 2,119.730 V {UNITED sums-PAT METHOD OF- SAME MAKING Charles '1; Walter, Chicago, 11]., assignor to In- I dustrial Patents Corporation, Chicago, 111., a corporation of Delaware I Application November 18, 1936, Serial No.'11 1,54'i

6. Claims. (Cl. 229-531) 1 This invention relates to containers and the method of making the same and more particularly f to a container employing a metal ferrule in combination with fiber ends.

One of the objects of this invention is to p'rometal ferrule for attachment to theend and side walls of fiber containers with a minimum metal waste.

Another object of. the invention is 'to provide a method for attaching toothed metal ferrules to '15 fiber container ends.

Other objects of the invention'will be apparent from the description and claims which follow.

The present invention is particularlydirecteii to pontainers of the type described and claimed in my Patent No. 1,959,971 entitled Container and methodof making same.

Attention is called to the accompanying drawing in which similar characters of reference in the several figures indicate similar parts.

I Figure 1 shows a portion of a strip of metal of a single ing a formed biankready for attachment to a fiber disk.

5 Figure 5 is a partial cross-sectionalview of a container cover comprising a .fiber diskand a metal ferrule in attached relationship.

Figure 6 is a plan view of the cover shown in Figure 5.

40 Figure '7 is a top view of a container employingthe novel cover.

Figur'e 8 isa partial cross-sectional view of a container employing the novel cover of the present invention.

The first step in forming the ferrule is shown in Figure 1,'wherein a thin strip of metal of sufficient width is stamped as shown, providing two ferrule blanks I. The teeth a'zd notches of these blanks may be complementary. The strips in Figures 2 and 3.

' The ferrule is then bent to the form shown in 5 Figure 4 providin'g a ring 2, a flange 3, and a plurality of teeth 4 bent at right angles to the ring 2 and again bent as at 5, these'teeth having points 6. It will be noted by the t'oothelements 4 a e set at an angle to the axis of the ring 2. The preferred angle is about 5 20 to 25 as shown in the drawing.

The formed ferrule .l is then attached to a fiber disk 1 by forcing the points 6 of the teeth into the surface of the fiben' The angle atwhich the points are bent causes a mushrooming efiect, the 1 resistance of the plies of fiber causing the teeth to be bent backwardly upon themselves in the manner shown .in Figure 5, firmly locking the metalferrule to the fiber disk.

The resultant fiber disk is mechanically strong and maybe readily handled in a can machine to crimp the flange 3 upon the upper edge of con- 'tainer wallf8. The teeth or prongs 4, having been bent at right angles at their base, thence backwardly within the fiber disk with the points passing into and being'crimped within the fibrous end of the container, do not come into contact with product within the container.

I claim: 1. In a container, the combination of a body .2 formed of fibrous material, a ferrule" shaped to conform'to the body walls of the container, comprising a fiange covering the'ends of the body walls and 'crimpe'd thereover and engaging the outer surfaces of said body walls, a' vertical portion on the inside of said body walls, and a plurality ofspaced prongs bent inwardly from said vertical portion, said. prongs at their free ends having extending points bent downwardly and backwardly and passed into and clenched wholly within the body of'a fibrous end.

-2. The method of preparing 'a' combination fibrous and metal end for a container having fibrous sid wails, which comprises stamping a ferrule blank from a fiat sheet of metal, said blank being formed with one straight edge and one edge provided with a plurality of pointed prongs, forming the bia'nk'into the desired shape, fianging the straight edge outwardly and, the .pronged edge inwardly, bending the prongs down- 45 wardly and backwardly intermediate their ends, inserting the back'wardly bent point portions of the prongs in a fibrous. blank end closure, causing said point portions of the prongs to remain within the body of the fibrous blank, and clenching .5

said point portions of the prongs within the fibrous blank. a

3. A container comprising a fibrous body wall and a fibrous end secured to the fibrous bo wall with a metallic ferrule provided/with eeth 55 ference to Figure rithatalong one edge thereof and having a flange crimped over the edge of the fibrous body wall, the said teeth being clenched internally of the fibrous end, the points of said teeth being wholly and a metal ferrule, said metal ferrule provided with teeth along one edge thereof, said teeth being clenched internally of'the fibrous portion;

the points of said teeth being entirely within said fibrous portion.

6. In combination with a fibrous end, a metallic ferrule adapted for securing the fibrous end to a container body, said ferrule comprising a body 'portion provided along one edge thereof with a plurality of pointed prongs, said prongs being fianged inwardly relative to said body portion and being bent downwardly and backwardly intermediate their ends at an angle relative to the inwardly flanged portion, the points of said prongs being passed into said fibrous end and clenched wholly within the body of the fibrous end.

CHARLES T. WALTER.

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