US1724213A - Double-lock crown cap - Google Patents

Description

Aug. 13, 1929- A. F. M DONNELL D OUBLE LOCK CROWN QAP Filed July 24, 1928 2 Sheets-Sheet l 1929- A. F. McDONNELL DOUBLE LOCK CROWN CAP 2 Sheets-Sheet Filed July 24, 1928 gwumtoz H.,F.' McDonnell WLZM Patented Aug. l3, l92l9.

FFlCE.

DOUBLE-LOOK CHOlNN GAP.

Application filed July 24%, 1928. Serial No. 294,969.

This invention relates to bottles and jars having necks peculiarly shaped and constructed to receive correspondingly formed caps adapted to be applied to said necks by the cappers of capping machines commonly used to apply caps of the well-known crown type to bottles in common use.

As is well known in this art, the ordinary crown cap is applied to bottles having necks provided with a single wide lip or head. It is also well known that the breakage caused by the application of the ordinary crown cap to this type of bottle neck is frequent. Considerable breakage of this type of bottle neck is also caused by the removal of the crown cap therefrom.

The main object of the present invention is to provide the necks of bottles and jars with a plurality of beads or lips shaped so as to decrease the possibility of breaking the bottle neck by heavy pressure of the capping head in sealing, or by the use of the common opener on crown caps applied to such bottle necks.

Another object of the invention is to provide bottle necks of the type referred to above with means whereby a crown cap may be removed therefrom by a twisting action in either direction on the bottle neck.

so Other objects of the invention will appear as the detailed description thereof proceeds.

In the drawings:

Figure 1 is an elevation of a special form of crown cap forming a part of this invention, the parts of the cap being broken away and shown in section;

Figure 2 is a central vertical section through a bottle neck embodying this invention and having a crown cap appliedthereto before being crimped thereon;

Figure 3 shows a bottle neck in elevation with a cap applied thereto in crimped position and shown in section;

Figure 4: is a sectional elevationtaken on the line H of Figure 3;

Figure 5 is a horizontal section taken on the line 55 of Figure 3;

Figure 6 is an elevation of a modified form of bottle neck showing a cap applied thereto and before being capped thereon, the cap being shown in central vertical section;

Figure '7 is a section taken on the line 77 of Figure 6;

ure 8 illustrates an elevation of a further modified form of bottle neck having a crown cap applied thereto and adapted to be rcn'io'vml therefrom by twisting;

Figure 9 is a sectional elevation of still another form of bottle neck with a crown cap applied thereto in the usual manner by the or try capping machine;

Figure 1.0 is a vertical section taken on the line 10--l0 of Figure 9;

Figure 11 is a horizontal section taken on 6 the line 11-11 of Figure 10;

Figure .12 is a fragmentary elevation of a form of wide-mouth jar adapted to have a crown cap applied thereto by a oapper of crdinary construction;

Figure 13 is a fragmentary elevation of a further modified form of wide-mouth jar adapted to have a crown cap applied directly thereto as a closure;

Figure 1a is a central vertical section of the jar shown in Figure 12 with a crown cap criniped thereon; and

Figure 15 is a central vertical section through a jar of the type shown in Figure .13 and having a crown cap crimped thereon. so

Referring to Figure 1 of the drawings, the crown cap 1 is shown as provided with a plurality of horizontal crimps 2 and 3. The ordinary crown cap, as commonly used,

provided with only one horizontal crimp 35 which is forced under the bead of the bottle conunonly used by vertical movement of a capper sliding over the crown cap and engaging the skirt thereof to force the crimp under said. head.

In the present invention, I prefer to use a plurality of beads on the bottle neck with a corresponding number of crimps in the crown cap. However, since this invention is intended to be used with the ordinary crown capping machine it is essential that the outer diameter of the modified cap have the same relation to the top thereof as exists between the corresponding parts of the crown cap in common use. For example, the difierence between the top and bottom dlameter of standard crown caps is {1; of an inch, so that the cap at each point of movement has a total movement of not more than of an inch. In the double lock or double crimp caps involved in this invention it is also essential that the difference between the top diameter and the lowest crimping point diameter be not more than of an inch.

The dimensions of the cap shown in Figure 1 are grossly exaggerated, but this is merely to illustrate the invention clearly. It must be understood that in all forms of this invention the caps must be so designed that they can be applied to the various modified-form of bottle neck by the standard cap- -per or capping machine.

In the form of the invention shown in Figure 2, the bottle neck 4 is provided with .two beads 5 and 6; and these two beads are intended to occupy the same space as is now occupied by the beads of bottle necks commonly used. The lower bead 6 is of slightly less diameter than the upper bead 5 and insures a firm wedge action to hold the cap 1 securely on the bottle neck.

The bottle neck ,4 has diametrically opposite points of the grooves 7 and 8 filled in to provide vertical walls 9 and 10, adapted to separate the crimped in parts of the cap 1 from the bottle neck 4 by rotation of the cap l on the bottle neck. It will be obvious that the parts of cap 1 in contact with the walls 9 and 10 will have no holding eilect upon the cap 1; and that when the-crimped cap is rotated in either direct-ion on the neck 4, these walls 9 and 10 will spread the crimped parts and thereby enable the cap to be removed by pulling it vertically ofi the bottle neck.

In the modification shown in Figures 6 and 7, the beads 11 and 12 are of the same diameter and the'cap l is similar to the cap .used on the form shown in Figure 2. This form of the invention is provided with a vertical wall 13 to serve the same purpose as the walls 9 and 10 in the form shown in Figaires 3, 4, and 5.

Inthe modification shown in Figure 8, a single bead 14 is provided on the bottle neck :as a substitute for the wide lip or bead in common use. This tapered form presents :no sharply outjutting beads which can be chipped or broken by the application of an opener thereto, or by the operation of a capper thereon in applying a crown cap there- ;to. The bead 14 is provided with a vertical part 15 in order to facilitate removal of the cap therefrom by twisting on the bottle neck.

The modification shown in Figures 9 and '10 is a combination of the taper form shown in Figure 8 with the bead form of bottleneck in common use. In this modification the bead 16 is rather narrow and merges into a taper 17 adapted to form a seat of a greater part of the skirt of the cap 1. Vertical portions 18 and 19 are formed at diametrically opposite points of the bottle neck to facilitate the movement of the cap therefrom by rotary twisting movement in either direction on the bottle neck.

The invention may be applied to wide mouthed ars, either to form a locking means for ar sealing means already applied to the jar; or, the invention may be directly used as a closure for such type of jar.

The jar 20 shown in Figures 12 and 14 has a bead 21 near its upper end and is provided with screw threads 22 adapted to receive the correspondingly screw threaded skirt 23 of a closure 24. This is a common type of jar in which the closure 24 may be connected to or removed from the screw threads 22 manually as desired. For shipping and sealing purposes, it is sometimes desirable to look this closure member securely to the jar; and for this purpose it may be desirable to apply a crown. cap 25 of the double crimped type to lock the closure securely in. place on the jar.

The jar 20 may be provided with a vertical part 26 below its bead 21 to facilitate removal of the cap 25 by rotation on the neck of the jar.

In Figures 13 and 14 there is shown a jar 26 having beads 27 and 28 at the upper end thereof. These beads are adapted to receive the correspondingly crimped skirt 29 of the cap 30. A vertical part 31 formed on the beaded part of the jar 26 serves, as before, to facilitate removal of the cap 30 by rotation thereof on the jar.

In all the modifications described herein it will be obvious that the double row of cap contacts require less unsealing pressure for removal of the cap as the resistance to unsealing is divided, and a less width of bottle lip is required to effect a perfect seal with the double row of crimps of the caps. This also forms a better distribution of glass to receive the shock of capping machine pressure.

What I claim is:

1. The combination with a bottle having a neck provided with a plurality of beads, of a cap closing said bottle neck and having a skirt crimped under each of said beads and means-on said beads to separate said skirt from said beads when the cap is rotated in either direction on said bottle neck.

2. The combination with a bottle having a neck provided with a plurality of beads forming recesses with each other and with said neck, of a cap closing said bottle neck and crimped into said recesses and means formed on said bottle neck at diametrically opposite points in said recesses to provide parts of the same diameter as the largest parts thereof crimped into said recesses and diameter of said beads to effect removal of means in said recesses to effect separation of 10 said cap from said beads by rotation of the said closure from said beads by rotation of cap in either direction on the bottle neck. the closure on the mouth of the bottle.

3. The combination with a container hav- In testimony whereof I affix my signaing a neck provided With a plurality of reture. cesses parallel to the mouth of said container, of a closure on said container having ANTHONY F. MODONNELL.

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