US823429A - Can-closure. - Google Patents

Description

No. 823,429. PATENTED JUNE 12, 1906. J. J. MOSER.

CAN CLOSURE.

APPLICATION FILED DEC. 28, 1904 plained. The lnwardly-projecting part of UNITED STATES PATE T onn cn.

Specification of Letters Patent.

' Patented June 12, 1906.

Application filed December 28,1904. Serial No. 233.636.

To all whom it may concern: 1

Be it known that I, JOSEPH J. MOSER, a oitizen'of the United States, residing in West Covington, in the county. of Kenton and State of Kentucky, have invented certain new and useful Improvements in- Can-Closures, of which the following is aspecification.

It is the object of my'invention to provide a new and im roved closure for cans, and the invention wil be readily understood from the following description and claims and from the drawings, in which latter Figure 1 is aside elevation of a can pro vided with my improved device, showing the same in closed relation. Fig. 2 is an enlarged central vertical section of my proved device, partly broken away, illustrating the can and its. cover in relation for applying the cover to the can. Fig. 3 is a similar view of the same, showing the cover in closed relation. Fig. 4 is a similar view of the same with packing applied thereto. Fig. 5 is an enlarged central vertical section of my improved device, artly broken away, with the outer edge of t e bead of the cover substantially flush with the outer annular face of the can-and showing the cover inrelation for applying the cover to the can; and Fig. 6 is a similarview of the same, showing the'cover in closed relation.

The body 1 of the can has a li portion 2, Which latter is preferably an ann ar rim portion suitably secured to the top ofthe can, as by having an outer depending wall 3, forming a shoulder 4, upon which the rim portion rests, uponthe upper edge 5 of the side of the can-body. The lip portion pro- .jects inwardly and hasan upwardly-pro ecting lip 6, forming a mouth, preferably in the form of [an upright frusto cone, for receiving the cover 7 in the manner. hereinafter exthe rim portion may consist of an inner depending wall 8, which, with the outer depending wall 3, forms a groove, in which the upper ed e 5 of the side of the can-body is received w en the rim portion is secured to the can-body. As shown in Figs. 2 and 3, a web 9 may connect'the depending wall 8 and the lip 6, forming a groove between the outer edge of the upper end of the can-body and the lip. The cover is formed with a transverse web 11, from which a preferably annu- -lar wall 12 projects upwardly and outwardly, preferably tapering or in the form of an inverted frust'o cone, adapted to be reshown at 20, for projecting ceived within theluprl ht frusto-cone-formed mouth of the can. he mouth of the can and the side wall of the cover are tapered in opposite directions, the cover formin a lug e cover is provide with afor the mouth. Th doubled bead 15, which comprisesan outer bead which merges into the upper edge of the wall of the cover with a transverse curve 16, about the inner face-of which the upper edge of the lip is adapted to curl, as shown at 17, when the lug is seated. The up er edge of the wall 0 the cover is curled for f drm'ing the curve 16, the curl being continued for projecting the wall of the cover to the side outwardly, as shown at 18, the curve or curl being still continued for pro'ectin the material of the cover downwardly an inwardly, as shown at 19, and continued farther, as I the curl or curve upwardly and inwardl and, as shown at 21, for continuing sai curl or curve outwardly within the outer bead and forming an lnner bead, between which beads of said is' held and clamped,

doubled bead the lip 6 with a double side joint. The curled portion 20 and the adjacent side face of the inverted frusto-conical wall of the plug thus form a widened plug-mouth for the ready reception of the cut lip of the can-mouth.

The inner and outer beads form curved faces-lying adjacent to each other and extending in the same tween which the outer edge of the lip is adapted to be forced bya plyin pressure to the top of the cover, an there y assume asimilar curve projected in the same general direction taken .by said r'eviously-curved inner and outer curls of,- which thereby forms a die therefor, thus forming a double seal,'each of which is formed by the side faces of the material of the plug and lip, respectively, and each of which aids in clam ing and maintaining the other in clam e position, the continuously transverse y curved connection of the beads with said side wall permittin the lip to be inserted between said si e wall andthe bead and forced therebetween to an desired extent for formin the double seafl The reduced end of the ug is received by the outwardly-projected ffee end of the ii of the mouth of the canthat is to say, the rec end of the li of the mouth is presented to the plug when t e latter,is inserted, the plug taparing to a size larger than general direction, be-

e doubled bead,

I l O the diameter of the outer end of the mouth when the latter 1S in normal ,or unspread relation, the mouth being resilient. Upon pressure being a plied to the top of the cover the cover is orced into the mouth and caused to be hugged by the lip of the mouth, the tapering sides of the depending part of the cover spreading the same andin turn being squeezed thereby for causing a close joint between the lugand lip, extending for a substantial Wi th between the mating inner face of the lip and the outer face of the ta ering Wall of the lug. The outer edge of t e lip is preferably t e cut edge of the material of which the lip is composedas tin, for instance. The cut edge of the material composing the lip affords additional resiliency to the lip increasingly toward the outer edge of the lip for permitting the outer edge to spread relatively more than the inner ortion of the lip) and permitting a greater belt of contact etween the plug and lip. Forcing the tapered cover within the outwardly-projecting lip causes the inner face of the lip to conform to the contour of the outer face of the wall of the plug, the lateral res sureof the lip acting against the wallo the plug for seeking and finding a close fit.

The inner curl of the bead is closely adja cent the inner face of the outer curl, the outer face of the lip taking against and being pressed by the inner curl of the bead, the plu -mouth ermitting ready insertion of sai' cut lip etween the beads. The said inner curl of the bead presses upon the outer face of the 1i and forms a seal therewith, forming a be t of contact between the side faces of the lip and curl, respectively. In this manner a double seal is formed between the lip and the inner and outer curls of the bead, said seals forming comparatively wide belts of contact between said respective faces said respective faces being pressed toward each other by the peculiar construction of the parts.

A body of packing 22, composed, preferably, of sticky substance slightl sub ect to eva oration, may be inserted wit 'n the double bead, the outer edge of the lip 'takin into the same for forming an additional sea and a body of packing 23 may be placed in the cove of the annular lip portion, into whic the bead may take.

In the form shown in 'Figs. 5 and 6 the lip of the can pro'ects upwardly immediately adjacent the ownwardly-projecting inner wall 8 of the ring, and the outer face of the bead is substantially flush with the outer annular face of the can-body, thereby affording a larger mouth for the can body and less liability of any of the contents of the can being retained thereby when empt ing the same, the bead being s aced from t e upper outer annular ed e of t e can bod as shown at2d. The bea as constructed orms a strong reinforce for the can, and the can can be easily opened by the insertion of a suitable instrument, as a knife-blade, between the bead and 'top edge of the can-body. After initial opening of the can the cover can be repeatedly removed and replaced for gradual consumption of thecontents of the can.

Having thus fully described my invention, what I claim as new, and desire to secure 'by Letters Patent, is

1. A can having a mouth formed of an annular wall of sheetmetal terminating in an outer cut edge of said sheet metal, with a sheet-metal plu therefor comprising a connecting-web an an annular wall of inverted frusto-conical shape terminating at itsupper end in a double bead having the cut end of i the sheet metal composing the plug projected a considerable distance into the inside of said double bead, the inner and outer curls of said double bead forming adjacent mating side faces curled in similar general direction facing each other, with said annular wall of said canmouth extending a considerable distance between said matin side faces and said out edge of said can mout located a considerable distance into the interior of said double beadfor formin side contacting faces between both sides 0 said annular wall of said can-mouth and said adjacent mating side faces of said double bead, substantially as described. v

2. A can having an outwardly-extending mouth formed of an annular wal of upright frusto-conical shape terminating in a cut edge, and a plug having a transverse web and a Wall of inverted frusto-conical shape merging into an outward double-curl bead having inner adjacent mating side faces projecting in the same general direction and the inner curl of which is curled upwardly from the lower part of said double-curl bead toward said inverted frusto-conical plug-wall and into the outer curl of said double-curl bead for forming a widened plug-mouth for the ready reception of said annular upright frusto'conical wall of said can-mouth, said can-mouth taking between and engaging said inner adjacent matin side faces of said double-curl bead for orming side contactbelts ofconsiderable width forrnedby the,

said inner adjacent matingside faces and the side faces of said annular wall of said canmouth, said belts of contact extending a considerable distance below the upper cut edge of said can-mouth to both sides of the walliof said mouth, substantiall as described.

In testimony whereo I have signed my name hereto in the'presence of two subscribing witnesses.

JOSEPH J MOSER.

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