US2351484A - Container and constricting rim therefor - Google Patents

Description

l i June 13, 19-44.

H. L.` CARPENTER G ONTAFINER AND GONSTRICTING RIM THERFOR Filed sepf. 11,V 1941 wrrNessas, INVENTOR J'eel. Campen ier BYv ATTORNEYS aamffone/ Patented June 13, 1944 FFICE CONTAINERAND ooNs'rmoTING RIM 'rinzmilioitV Herbert L. Carpenter, Brooklyn, N. Y.

Application september 11, 1941, serial No. 410,361

2 Claims.

This invention relates to containersandpar'- ticularly to containers having removable heads and means for holding the heads .normally .in place, an object being to provide a construction wherein the head will be maintained in airtight condition notwithstanding varying changes in temperature and atmospheric conditions.

Another object of the invention is to provide a container which may be made from laminated ber and provided with afiber, wooden or metal head associated with an expansible rim adapted to expand and contract as the head and container expand and contract with changes in temperature or humidity in order to maintain the head airtight at all times.

A further object of the invention is to provide a container with a closure structure including a head and a metal rim provided with an expanding section arranged to maintain the head airtight notwithstanding variations in temperature and humidity, and expansion and contraction of the head, body portion and/or rim.

In the accompanying drawingv v Fig. 1 is a side view of a container embodying my invention, a portion being broken away to illustrate the closure construction;

Fig. 2 is an enlarged fragmentary sectional view through Fig. 1 approximately on the line 2 2;

Fig. 3 is a top plan view on a reduced scale of the rim shown in Fig. 1;

Fig. 4 is a view similar to Fig. 3 but showing a slightly modiiied construction of the invention; and

Fig. 5 is an enlarged perspective view illustrating one of the resilient metal sections.

Referring to the accompanying drawing by numerals, I indicates the body of the container which may be provided with any kind of bottom but which is provided with a special closure at the top. This container may be made of any de-4 sired material but is preferably made from laminated fiber. The container has an opening adjacent one end which is provided with a removable head 6 releasably held in place by means of clamping ring 4. Adjacent the open end, the container is provided with an external annular groove 2 for receiving the turned-in annular edge 3 of the metal rim 4. The rim is also provided with an overlapping ange 5 which overlaps the the head 6, which head may be made of wood, ber, or other material. Wood is used quite generally in heads for fiber containers and when the head 6 is formed of wood it may be provided with a flange 'I resting on the top edge of the container, or this ange may be eliminated andthe head allowed to rest solely on the shoulders. In this form of head and preferablyin al1 formshof head, there is provided a moisture-proof or mois- -.5. ture-resisting thin lining 9 which extends over the inner surface of the head 6 along the peripheral part and over the top of the wall ofthe container as illustrated at the left in Fig. l.

Various forms of' metal bands have been pro- 1() vided heretofore for holding the head 6 in place and also means have been provided for tightening the bands so that when the head is first applied -it will be air and liquid tight. However, it has been found that while the head may be perl5 fectly tight when rst applied, it oftentimes loosens up and allows air, moisture and other foreign matter to enter or leave, particularly as a result of changes in temperature or atmospheric conditions. This action is sometimes known as breathing, and is highly undesirable wheneverit is necessary to protect the contents ofthe container from contamination by foreign'matter or from exposure to air or moisture.

By means of my present invention, I provide a ggfpermanently tight head wherein breathing is eliminated even though the container is subjected to changes in temperautre and atmospheric conditions. In order to secure this desirable result, the metal rim 4 has been made circumferentially 3'6"?, resilient or elastic to a limited extent as, for instance, by the use of an elastic section IIJ formed of transversely corrugated spring steel, though other elastic means may be usedl without depart.-

ing from the spirit of the invention. The rim 4 3%?1 is a split rim and is made from suitable strong material such as steel or other metal, .and the section I0 is made from a strong resilient metal, as

for instance, tempered steel. Section Ill may be secured vto one end of rim 4 by welding or. other mmeans, as for instance, rivets `I I and I2, as shown in Fig. l, and a pivotal rivet I3 connects theother end of section I0 to the closing and locking lever I4 intermediate its length. A second pivotal rivet I5 extends through lever I4 adjacent the end thereof and connects it to the opposite end of rim 4, as shown in Figs. 1 and 2.

Rim 4 is preferably formed so that'the ends thereof overlap, as shown in Fig. 2. It will be observed that section I0 is connected to `and projects beyond one end of the rim 4 and that lever I4 is connected to the rim adjacent the opposite end. It will also be noted that there is provided a pressed-up loop I6 in the rim adjacent pivotal connection I5 into which the end I'I of lever I4 extends. The end I'I is provided with a notch I8 so that when the parts are in position, as shown in Fig. 1, part of the loop may be bent inwardly into notch I8 and thereby prevent accidental opening of the lever.

To place rim 4 around the upper end of the container to hold head E in position, lever I4 is iirst pivoted upwardly in a clockwise direction, as viewed in Fig. 1V, so as to expand the rim. The rim is then tted around the container with the annular ledge 3 fitted into the external groove 2 and 'with the ange 5 overlapping the flange 1 of the head 6. The lever is then pivoted in a counter-clockwise direction so as to contract the rim and the end I'l is inserted into loop I6, in the manner shown. The lever can be retained in position against accidental displacement by bending the loop inwardly into notch I8. In this connection, the pivotal pointsl and I3, for connecting the lever to the end of the rim and to the resilient section I U, are preferably soarranged that when the lever is in locked position, as shown in Fig. 1, the pivotal points are out of alignment with each other, the pivotal point I5 being disposed slightly above the pivotal point I3 so that the natural tendency of the rim to expand circumferentially, due tothe tension when it is locked, serves to exercise a locking, rather than a releasing action on the lever.

The parts are so proportioned that when they are moved to the position shown in Fig. 1, the section I0 is sprung or separated somewhat though not Vto its fullest extent. By reason of this fact, the rim may expand or contract as may be required. When the parts are arranged as shown in Fig. 1, if the containeris subjected Ato variations in temperature or humidity, the section I0 will expand or contract as the case may be, and maintain the tight connection of head 6 with the container. In this way the contents of the container are protectedfrom exposure to air or Amoisture and Afrom contamination by foreign matter.

The construction shown in Figs. 1 to 3, inclusive, provides a rim 4 which is in one piece, `and the corrugated spring section I0 is secured to one and thereof. However, the rim may be formed inV any desired number of pieces, and one or more sections similar tovsection I0 may be connected at-any desired circumferential position in the rim. Thus, in Figs. 4 and 5, a slightly modied construction is disclosed wherein the rim 4' is vthe same as rim 4 except that it is divided at I9 and -provided with a resilient section I0. This form of the invention has the resilient section I0, lever I4 and associated parts as shown in Fig. l, and lin addition the section ID which is substantially diametrically opposite section I0.

The construction of the section I0 is the sameas section I0 except that it is riveted or rigidly secured at both ends, as illustrated particularly in Fig. 5.V In this iig-ure, it will .be seen that a pair of rivets 20 connect one end to one part of the rim 4' and rivets 2| connect the other end to the other part of the rim 4.

The resilient sections I0 and I0 are preferably formed with outwardly extending corrugations 22 and ilat connecting sections 23 so as to provide the desired resiliency and also the desired resistance. Three bowed-out sections 22 have been shown in the drawing but it is evident that a smaller or greater number may be used without departing from the spirit of the invention.

While the above outlined form of clamping rim for holding the head 6 in place is particularly desirable for use with iiber containers, it may be used with containers made oi' other material without departing from the spirit of the invention.

It shouldbe understood, of course, that modications may be made in the illustrated embodiment of my invention without departing from the invention as set forth in the claims.

Iclaim: .Y v1. A container comprising a body, a head tted into said body, and a metal clamping rim -formed with overlapping ends and divided at one point said rim having a pressed-out loop adjacent one of said overlapping -ends parallel to said rim, a locking lever having one end pivotally connected with one of said overlapping ends and pivotally connected intermediate its length with the other overlapping end, said locking lever having a U- shaped notch in the part that ts into said loop, said loop being adapted to be deformed to iit into said notch after the lever has been moved to the full functioning position.

2. A container comprising a laminated iiber ybody having a pressed-Vin portion near one end resulting in an exterior groove and an interior bead, a wooden head resting on said bead and a metal constricting rim having a flange overlapping the end ofthe container and part of the head and a second flange fitting into said groove, said rim .being divided at one pointV and with the ends overlapping, one of said ends being made of corrugated spring metal circumferen 'tially resilient, a metal lever having one end pivoted to one of said overlapping ends, means for pivotally connecting the free end of said resilient section to said lever intermediate its ends whereby when said lever is swung in one direction the rim is expanded so as to be applied or removed, and when swung in the other direction the rim is constricted to bring said resilient section under tension, said lever being provided with an end having a notch, said rim being provided with a loop through which said end is adapted to be inserted, said loop being adapted to be pressed into said notch when said end is in the loop so as to prevent accidental removal of the end from the loop,

HERBERT L. CARPENTER.

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