US1792280A - Metallic receptacle and closure therefor - Google Patents

Description

Feb. 10, 1931. v. IE. CORNELL METALLIC RECEPTACLE AND CLOSURE THEREFOR Filed Jan. 25, 1930 INVENTOR.

,IAJATTORNEY.

Patented Feb. 10, 1931 UNITED STATES PATENT OFFICE VEHNON E. CORNELL, OF CLEVELAND, OHIO,

ASSIGNOB TO THE STEVENS METAL PRODUCTS COMPANY, OI! NILES, OHIO, A CORPORATION OF OHIO Application med January 25, 1980. Serial No. 423,835.

My invention is an improvement in metallic rece tacles or containers, and relates more particularly to closures for the same and to means for efl'ecting a fluid tight seal between the receptacle and the closure.

One of the objects of my invention is to enable metallic receptacles such as drums or barrels to be fitted with a full removable cover providing a tight fluid proof seal between the cover and the receptacle, without aid of tools.

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

A further ob'ect of the invention is to seal the cover in p ace. against unauthorized removal.

Other objects and advantages of my invention will become more apparent from the followin descri tion of an embodiment thereof, re erence Eeing made to the accompanying drawing in which like reference characters are em loyed to designate like parts throughout t e same.

In the drawing- Fig. 1' is a top plan view of an embodiment of my invention, showing the cover on. the re-' 0 cepvtacle in fluid tight sealed relation.

Fig.3 is a fra ig. 2 is an enlarged fragmentary section taken on line 2-2 of Fig. 1.

looking or clamping ring contracted to seal the cover on the receptacle.

Fig. 4 is a view similar to Fig. 3 except that the nng is shown partly expanded as in remolving the ring-and cover from the receptac e.

Fig. 5 is an elevation of the locking or clamping ring looking in the direction of the arrows in ig. 4.

M invention is particularl applicable to metallic containers or rece tac es such as barrels or drums and the l' e, which are provided with a circumferential bead at their open ends for supporting a cover and for reinforcement purposes.

Referring to the drawing, in which I have illustrated an. embodiment of my invention,

entary plan view of the 1 the barrel or drum is indicated at 1. The upper edge of the container is rolled to form a peripheral bead at the open end thereof. A cover 3 comprising a cupped member havmg a peripheral upwardly and outwardly extending flange 4, is supported by the bead 2 in such a manner that the cu ped portion of the cover may be telescopeci for a short distance within the container, as illustrated in Fig. 2. It will be noted that a portion of the flange 4 is slightly arcuate in cross section to conform with the ap roximate curvature of the upper surface 0 the bead, and that the outer edge of the flange terminates at a point near that defined by the greatest outer diameter of the bead. Although I have shown the flange extending to a point equal to the greatest outer diameter of the bead, I find that the flange may extend to a point just short thereof, it being sufficient that the flange extend completely over the packing 5 between the flange and the bead. The packing may consist of an annulus of any suitable pac 'ng material, and I have found that an annulus of flexible rubber tubing is very satisfactoryfor this purpose.

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 asubstantially uniform pressure on the cover and the bead in a direction substantially parallel to the axis of the container.

In the present embodiment this means includes a split contractible channeled ring 6 substantially U-sha ed in cross .section. The upper and lower an e and bead engaging walls respectively of t e ring extend in substantially parallel planes only near their inner edges as shown in Fig. 2.

Thus it will be seen that upon contracting the ring the flange will be tightly pressed against the packing 5 and the supporting bead 2 under a substantially vertical pressure. I

The contractible ring 6 com rises a pair of complementary sections, eac section being provided with inwardly extending 111 7 and 8 near its ends. The lugs ring sections and welded thereto in a plane lying in the upper inwardly extending side walls of the ring sections. Each of the lugs is apertured near its inner extremity.

In the illustration I have shown a lever 9 in the form of a hail of slightly less diameter than the inner diameter of the split ring, the ends of the bail being pivotally connected by means of pins 10 to the In s 7. In order to permit the bail to swing a out a horizontal axis, the inner portions of the lugs 7 are bent downwardly, which clearly illustrated in Fig. ,5. One endiif each ofthe links 11 is pivotally connected to the downwardly extending portions of .the lugs 8 to swing about a horizontal axis, th eipther ends of the links being pivotally connected to the bail 9 at 12.

It is desirable that the pivots 12 be dis posed slightly below a line drawn through the pins 10 and 10', when the bail is in the position shown in Fig. 1 to contract the ring sections about the cover and bead. In this manner the pin 12 maybe moved beyond a dead center position when the ring is fully contracted to prevent accidental release of the bail and the ring sections. As the bail is moved from substantially vertical position over the cover to the position shown in Fig. 1, the ring sections will be drawn together laterally to tightly press the cover against the packing and the head in fluid tight relation.

stantially vertical Although I have not shown on the drawing a means to seal the bail in ring contracted position, this may be accomplished by welding a tab to the ring section to the left in Fig. 1, the tab being aperturedto receive'a wire of the usual wire sealing device, and sealing the wires assed through the aperture and around the a jacent portion of the bail in the customary manner.

In Fig. 4 I have shown the bail in a subposition with respect to the cover, and the ring sections 6 in partly open position to allow the upper and lower walls of the ring to release the pressure on the flange and ring. Further movement of the bail about its horizontal axis to the right in Fig. 4 will expand the ring sections to a point where the thus enlarged circumference of the ring is greater than that of the flange or bead, permitting removal of the ring sections and cover from the receptacle.

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 the receptacle, the invention is equally applicable to receptacles hav ing restricted openings.

It will also be observed that by my invention the full removable cover may be clamped easily on thelr'eceptacle in fluid sealing contact and may be removed easily'without the aid of tools.

In my copending applications Serial Num- 1,7e2,2so

bers 423,333, 423,334, and 423 336 all filed January 25,. 1930, I have disclosed several other types of closures for metallic receptacles.

Various changes may be made in the details of construction and arrangement of parts without departing from the spirit of the invention or the scope of the appended claims.

I claim:

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 flan e fitting over the bead, of a contractible cianneled segmental clamping ring having walls engageable with the flange and the head for pressing the same together when the ring is contracted, and

means for contracting the ring including a bail pivotally carried by one of said ring segments and links, the ends of the links being pivotally connected to another rin segment and to the arms of said bail respectively, whereby movement of the bail in one directtion will expand said segments and movement in the opposite direction will contract the segments securely about the flange and head to press the same tightly together.

2. The combination with a metallic receptacle having a bead rolled, about its open end and a removable cover for said receptacle having a marginal flan e fittin 'over the bead, of a contractible c annele clamping ring-having walls engageable with the cover flange and the bead, for pressing the same together when the ring is contracted, means for contracting the ring, said means including a lever pivotally carried by the ring and movable about an axis lying Itransversely with "respect to the longitudinal axis of the re; ceptacle, and a link ivotally connected to said ring and to said ever.

3. A clamping device for a metallic receptacle having a bead rolled about its open end and a cover having a flange fitting over the bead, includin a contractible channeled clamping ring avin walls engageable with the cover flange an the bead to press the same together when the ring is contracted, and means for contracting the ring, said means including a lever pivotally carried by the ring and movable about an axis 1 transversely with respect to the longitudiii fi axis of the rece tacle, and a link pivotally connected to said ring and to said lever.

In testimony whereof, I hereunto aflix my signature.

VERNON E. CORNELL.

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