US1792279A - Metallic receptacle and closure therefor - Google Patents

Description

Feb. 10, 1931. v CORNELL 1:792279 METALLIC RECEPTAGLE AND CLOSURE THEREFOR 7 Filed Jan. 25, 1930 INVENTOR.

A4; A TTORNEY.

Patented p 10, 1931 UNITED STATES.

PATENT OFFICE PRODUCTS COMPANY, OF NILES, OHIO, A CORPORATION OF OHIO METALLIC RECEITACLE .A ND CLOSURE THEREFOR Application filed January 25, 1930. Serial' No. 423,334.

My invention is an improvement in metallic receptacles or containers, and relates more particularly to closures for the same and to means for effecting a fluid tight seal between 5 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 sealbetween the cover and the receptacle, without the aid of tools. r

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.

,l A further object of the invention is to seal the cover in place against unauthorized removal.

Other objects and advantages of my in vention will become more apparent from the following description of an embodiment 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 an embodiment v of my invention, showing the cover on the receptacle in fluid tight sealed relation.

Fig. 2 is an enlarged fragmentary section taken on line 2-2 of Fig. 1.

Fig. 3 is a fragmentary plan view of the locking or clamping ring contracted to seal the cover on the receptacle.

Fig. 4 is a view similar to Fig. 3 except that the ring is shown partly expanded as in removing the ring and cover from the recep tacle.

Fig. 5 is an elevation-of the locking or clamping ring looking in the direction of the arrows in Fig. 3. T

My invention is particularly applicable to metallic containers or receptacles such as barrels or drums and the like, 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,

the barrel or drum is indicated at 1. The upper edge of the container is rolled to form a peripheral bead 2 at the open end thereof. A cover 3 com-prising a cupped member having a peripheral upwardly and outwardly extending flange 4, is supported by the bead 2 in such a manner that the cupped portion of the cover may be telescoped for a short distance within the container, as illustrated in Fig. 2. Itwill be noted that a portion of the flange 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 point nearthat defined by'the greatestouter diameter of the bead. Although I have shown the flange extending to a point equal to the THE STEVENS METAL greatest outer diameter of the bead, I find that the flange may extend to a point just short thereof, it being sufiicient 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 packing material, and I have found that an annulus of'flexible rubber tubing is very satisfactory for this purpose.

. I have provided a simple means for removably securing the cover on the receptacle to efiect a fluid tight seal between the same by exerting a substantially 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-shaped in cross section. The upper and lower "flange and bead engaging walls respectively of the ring extend in sub-- stantially parallel planes only near their,

inner edges as shown in Fig.2.

Thus it will be seen that upon contractm the ring the flange will be tightly presse against the packing 5 and the supporting substantially vertical pres- 8 near its ends. The lugs may be formed integrally with or separately of the r1ngsec-.,

tions 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 levers 9 pivotally connected to the lugs 8 by, means ofpins 10 in the openings in these lugs. Links 11 are pivoted at one end to 'the lugs 7 by means of the pins 12 and at their other ends \10 to the levers 9 at 13. It will be noted that the points 13 lie between. the ring sections and a line drawn through the respective points 10 and 12, when the levers are moved to contract the ring sections and seal the cover on the container. In this manner accidental release of the levers from the locking position will be prevented. As the levers are moved to the position shown in Fig. 1 the ring sections will be "drawn together laterally '20 to tightly press the cover against the packing andthe bead.

, When it is desired to seal the container against unauthorized opening, a tab 14 may be welded to the ring at-a point where its 2 opening 15 will register with the openings in the levers 9 when the levers are swung toward the ring. The customary wire seal may be then inserted in the openings and sealed in the usual manner.

I have illustrated a means contemplated by i this invention for exertinga lateral pressure between the rin and the side walls of the cover, to draw t e ring inwardly and more easily contract the rin about the bead and flange. This means indludes arms 16 formed on each of the levers 9'. The outer end of each of the arms is formed with a shoe 17, the outer or flange engaging wall of which is tapered slightly inwardly and forwardly 40 as shown more clearly in Figs. 3 and 4.

By inclining this wall relative movement between the shoe and the flange, upon swinging the levers 9, will be more easily accomplished. The,arms 16 are of suflicient length so that the shoes 17 will engage the flange under considerable lateral pressure and cause the ring sections 6 to be tightly contracted about the bead and flange when the, levers 9 are moved to the position in Fig. 3, thereby 5o exerting and uniformly distributing thesealing pressure about the flange and the bead.

In Fig. 4 I have shown. one of the levers 9 and the ring sections 6'in partly opened po; sition to allow the shoe torelease the lateral as pressure on the flange and ring, By further moving the levers to-the right in Fig. 1, the ring sections may be expanded to a point where, the circumference of the ring unit is greater than that 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 4 or for emptying or filling the same. It is to be understood that while I have shown my invention applied to receptacles for contracting the ring including levers pivhaving 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 the receptacle in fluid sealing contact and may be removed easily without the aid of tools. 1

In my copending applications Serial Numbers 423,333, 423,335 and 423,336 all filedon January 25, 1930, I have disclosed several ofher'types of closures for metallic recepta- 0 es.

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

I claim- Y 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 contractible channeled segmental clamping ring having walls engageable with the flange and the bead for pressing the same together when the ring is contracted, and means for contracting the ring including levers pivotally connected to theends of .one ring segment and links pivotally connected to the ends of another ring segment, and to said respective levers.

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 flange, fitting over the bead, of a contractible channeled segmental clamping ring having walls engageable with the flange and the bead for pressing the same together when the ring is contracted, and means otally connected to the endsof one ring segment and links pivotally connected to the ends of another ring segment, and to said res ective levers, and shoes carried by the sai leno vers and engageable with the flange to exert a lateral pressure on the flange when the ring is contracted.

3. The combination with a metallic receptacle having a bead rolled aboutits open end, and a removable cover for said receptacle having a marginal flan e. fitting over the bfi8.d.,.fl a contractible c anneled se ental clam ing ring having walls engagea 1e with the ange and the bead-for pressing the same together when the rin is contracted, and having lugs projecting inwardly of the ring, and means for contracting the ring including levers pivotally connecting certain of said lugs on one ring segment, and links pivotally connected to certain other of said lugs on another ring segment and to said respective levers.

4. A clampi g device for a metallic receptacle having a bead rolled about its open end 130 and a cover having a flange fitting over the bead, including a contractible, segmental, channeled clamping ring having walls engageable with the flange and the bead for pressing the same together when the ring is contracted and means for contracting the ring including levers pivotally connected to the ends of one ring segment and links pivotally connected to the ends of another ring se ment, and to said res ective levers. I testimony whereo I hereunto aflix my signature.

Y VERNON E. CORNELL.

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