US1792278A - Metallic receptacle and closure therefor - Google Patents

Description

Feb O, 1931. Y V. E CORNELL I 1,792,278

METALLIC RECEPTACLE AND CLOSURE THEREFOR Filed Jan. 25, 1930 llllnllnl 7 INVENTQR. l

Y Lag/AM' M; A TTORNE Y.

atentecl Feb. 10,.` 1.931

UNITED STATES PATENT OFFICE VERNON n. CORNELL, or CLEVELAND,

OHIO, ASSIGNOR TO THE STEVENS `INIIEHLAL PRODUCTS COMPANY, OF NILES, OHIO, A CORPORATION OF OHIO METALLIC BECEPTAOLE AND CLOSURE {I HIEB'EEOBl Application tiled January 25, 1930. Serial No. 428,333.

My invention is an improvement in metalc receptacles or containers, and relates more particularly to closures for the same and means for effecting a fluid tight seal between enable metallic receptacles such as drums or -barrels to be fitted with a full removable cover providing a tight fluid proof s eal between the cover and the receptacle, without aid of tools.

Another object of my invention is to removably secure a cover upon a metallic re-` ceptacle and to exert a pressure in a line substantially parallel with the axis of the receptacle to seat the coveron the receptacle to effect a fluid tight seal.

Another object of my invention is to insure a uid tight seal between the cover andthe receptacle by uniformly distributing the sealing pressure about the periphery of the cover.

A further object ofthe invention is to seal the cover against unauthorized removal.

Other objects and advantages of my invention will become more apparent lfrom the following description of two embodiments thereof, reference being made to the accompanying drawing in `which like reference characters are employed to designate like parts throughout the same.

In the drawing-.-

Fig. 1 is a top plan view of one form of my invention, showlngthe cover on the receptacle in fluid tight sealed relation.

Fig. 2 is a similar view of a modification of my invention in which the clamfping or locking ring is split in a plurality o places.

Fig. 3 is an enlarged fragmentary section takenV on line 3 3' o f either Figs. 1 or 2.-

Fig.'4 isa fragmentary plan view ofthe locking or clamping rin contracted to seal the cover on the receptac e.

Fig. 5 is a similar view to Fig. 4 except .that the ring is shown partly expanded as 1n removing the ring and cover from the rece tacle.

ig. 6 is anelevation of the locking or clamping ring looking in the direction of the arrows in 4;.

My invention is particularly applicable to metallic containers or receptacles such as barrels or drums and the like, which are provided with a circumferential lbead at their' open ends for supporting a cover and for reinforcement purposes.

Referring first to Figs. 1` and 3 to 6 inclusively, in which I 'have illustrated the preferred embodiment of the present invention, the barrel or drum is indicated at 1. Thef upper edge of the container is rolled o end thereof. A cover 3 member having a peri heral upwardly and outwardly extending ange 4, 1sI supported by the lbead 2 in `such a manner that the cupped portion of the cover may be telescoped for a short distance within the con. tainer, as illustrated in Fi 3. It will be noted that a portion of the gangs 4 is slightly arcuate in cross section, to conform with the approximate curvature of the upper surface of the bead, and that the outer edge of the flange terminates at a pointnear that defined by the greatest outer diameter of the comprislng a cupped tending to a point equal diameter ofthe bead, I may extend to a point just=short thereof, it being sufficient that the flange extend completely over the packing member 5 between the flange and the bead. This packing member may consist of an annulus of any suitable packing material, and I have found that an annulus of flexible rubber tubing is very satisfactory for this urpose.

I have provided a simple means for removably securing the cover on the receptacle to effect a fluid tight seal between the same by exerting a substantially uniform pressure on the cover and'bead in a direction substantially parallel to the axis of the container.

In the presentembodiment this means includes a split contractible channeled clamping ring' 6 substantially U-shaped in cross section and provided near its ends with inwardly extending lugs 7. The upper and lower flange and bead engaging walls respec-- tively of the ring extend 1n substantially parallel planes only near their inner edges asto the greatest outer find that the fiange ioo 4results in thering being more easilycontracted about the bea -or iiangeengaging wall formly shown more clearly in Fig. 3. Thus it will be seen that upon contraction of the ring the flange will be pressed tightly against the packing 5 and the supporting bead 2 under a substantially vertical pressure. The lugs 7 may be formed integrally with the ring or formed separately of the ring and welded thereto in a plane dening the upper inwardly extending side wall of the ring. The lugs are apertured to receive'the pins 8 near the inner extremities of the lugs. A lever 9 is pivotally secured by one of the pins to one of the lugs 7 while a link 10 is pivotally secured at one end to the other lugs, the ends of the link being slightly offset longitudinally. The opposite end of the link is pivotally connected by a pin 11 to the lever 9, the pin 11 being located at a point on the leverv which normally lies between an imaginary straight line drawn through the pins 8, and the adjacent ring body when the parts are in the posi- 2 tion shown in Fig. 4. In this manner, when the lever is moved to the ring contracted position as shown in Fig. 4, thepivot point defined by the pin 11 will have moved slightly past the dead center line of the pins 8, thereby preventing accidental release of the lever under the stresses set up by the contracted en it is desired to seal the container against unauthorized opening, a tab 12 may be welded to the ring at a point where its opening 13 will register with an opening near the outer end of the lever when the lever is swung toward the ring. The customary wire seal may be then inserted in the openings and sealed in the usual manner.

Referring more particularly 'to Figs. 4, 5 and 6 I have illustrated a means contemplated2 by this invention, for exerting a lateral pressure against the cover flange, which drawn inwardl and i and cover flange. This means includes an arm 14 formed on the lever 9 extending preferably at an obtuse angle therefrom. The outer end of this arm is formed with a shoe 15, the outer of which is ta ered slightly inwardly and forwardly as s own more clearly in Fig. 5. By inclining this wall, relative movement between the shoe and the flange, upon swingin the lever 9, will be more ,easily accomplishe The arm 14 is of suicient le h to engage the flange under considerable lateral pressure and to cause the ring 6 to be tightly contracted about the bead and flangeto press the same tightly together when the lever 9 is moved to the position in Fig..4, thereby exerting and'unidistributing a sealing pressure between the flange and the bead.-

In' Fig. 5 I have shown I' 6 in partly opened position to allow the ring to assume its normal open position and to release 'the lateral pressure on the cover and easily on the )receptacle the lever 9 and ring ving `ring `having megeve right in Fig. 5, the ring maybe expanded to point where its circumference is greater than the circumference of the flange or bead, to permit its removal from the receptacle. In this manner the cover and packing ring may be lifted from the receptacle, to permit cleaning the same or for emptying or filling the same. K

In Fig. 2 I have illustrated a modification of the present invention. In thisv embodi-4 ment the contracting ring is split at points substantially diametrically opposite, although I do not limit the invention in this re. spect, since the ring may be split atvany other points along its circumference. In the figure the ring comprises complementary sections 6 and 6', two of its adjacent ends being hingedly connected together by vmeans of a link 2(1) plvotally connected at its end to the lugs The lugs 21 are similar to the lugs 7 and may be formed integrally with or welded to the upper lateral wall of the ring-sections. In this embodiment, of course, the inherent resiliency of the ring as a unit is greatly diminished, and the ring possesses a degree of flexibility asa unit, which aids to a high degree in uniformly distributing the pressure on the flange and bead when the lever 9 is closed, and which therefore enables a tight fluid proof seal between the cover and the receptacle to be made. A

In other respects this modification is similar in structure to the form shown in Figs. 1 and 3 to' 6 inclusive.

It is to be understood that while I have shown my invention applied to receptacles having openings of the same diameter as the inner diameter of he receptacle, the inven-` tion is equally applicable to receptacles having restricted openings. v p

It will also be observed that by my invention the full removable covermay be clamped lin fluid sealing contact and may be removed easily without the aid of tools.

-Numbers 423,334, 423,335 land 423,336 all filed January 25, 1930, I have disclosed several other types'of closures for metallic receptacles. t Y

Various changes may be made in the details of construction and arrangement of parts without departing from the spirit of the invention'or.v the scope of the sub]oined` claims. v

1. The combination with a metallic receptacle having a bead -rolled about its open end, and a removable cover for said receptacle having a marginal flange fitting over the bead, of a segmental contractible channeled clampwalls engageable with and pressing the ange' and bead together when the ring is contracted, and means forA contracting the ring and simultaneously exerting a lateral ressure on the cover flange.

2. The com ination with a metallic receptacle having a bead rolled about its open end, and a removable cover for said receptacle having a marginal flange fitting over the bead, of a. segmental contractible channeled clamping ring having walls engageable with and pressing the ange and bead together when the ring is contracted, and means for contracting the ring and simultaneously exerting a lateral pressure on the cover ange, and a link hingedly connecting adjacent ends of the-sections together.

3. In a clamping device for a receptacle having a bead rolled about its opened end and a cover having a flange fitting over the bead, p

a segmental contractible channeled clamping ring having Walls engageable with and pressing the flange and ead together when the ring is contracted, and means for contracting the ring including a lever pivotally connected to one segment of the ring and a link pivotally connecting said lever with another segment of the ring.

4. `In a clamping device for a receptacle having a bead' rolled about its open end and a cover having a flange tting over the bead, a segmental contractible channeled clamping ring having Walls engageable with and pressing the flange and bead together when the ring is contracted, and means for' contracting the ring including a lever ivotally connected to one segment ofthe rlng and a link -pivotally connecting said lever with another segment of the ring, and a link hingedly connecting the ring segment carrying the lever with said other segment.

In testimony whereof, I hereunto aix my signature.

VERNON E. CORNELL.

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