US2313459A - Closing ring - Google Patents

Description

M archs,1943; A H,v'AN HORN 2,313,459'

CLOSING .RING

Filed Jari. 15, 1941 s ATTQRNEYS.

Patented Mar. 9, 1943 OFFICE CLOSING RING Arthur H. Van Horn, Rocky River, Ohio, assignor yto Cornell Securities Corporation, Cleveland, Ohio, a corporation of Delaware Application January 15, 1941, seria1N0.374,543

m 1` Claim.

My invention is an improvement in metallic receptacles and relates more particularly to an improved means for detachably securing a cover in place on the receptacle in fluid tight sealed relation thereto. i"

One of the objects of the invention is toprovide a contractable clamping ringto removably secure the cover on the open end of the receptacle, with simple means operable in one direction for contracting the ring to seal the cover into iiuid tight relation with the receptacle and operable in another direction to expand the ring so as to permit its removal and the removal of the cover from the receptable.

A further object of the invention is to provide means by which the ringv may be contracted and expanded by a singleV eccentrically operating member carried by one end of the ring and having operating engagement with rstops or. abutments carried by the other'end of the ring.

Another object is to provide means of the above named character which can be applied tothe outer ring wall to operate in a plane normal to the plane of the ring and which lies close to the outer circumference of the ring when 'thering is contracted, thereby eliminating objectionable obstructions or protuberances' which, Whenpresent, interfere with close storage of the receptacles or with stacking one receptacle upon another.

A still further object of the invention is to provide a split clamping and sealing ring of the class described in which the ends of the ring overlie or telescope one another, there being a rotatable eccentric member carried by one ring end operating between spaced stops or abutments on the other ring end to contract and expand the ring.

Other objects and advantages of my invention 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- Figure l is a top plan View of a metallic receptacle and cover, illustrating my invention applied in use;

Figure 2 is a side elevation showing the clamping ring applied to the receptacle and cover, and

illustrates the position of the operating means when the ring is contracted;

Figure 3 is a View similar to that of Figure 2, and illustrates the position of the operating means when the ring is fully expanded to remove it from the cover and the receptacle;

(c1. 2li- 256) Figure 4 is a horizontal section taken online 4-4 of Figure 2;

Figure 5 is a vertical section taken on line 5-5 of Figure 2;

Figure 6 is a vertical section taken on line 6-6 of Figure 2; and, y f

Figure 7 Vis an enlarged elevation of one of the cam abutments.

My invention is particularly adapted for use with metallic containers suchas shipping drums, pails or the like I, in which either the container is formed with a bead' 2 rolledabout its upper open end or is provided with a lo'ck seamed' cover having a partial opening therein formed with a neck having a bead rolled about its outer end. In structures .of this kind", itis the cust'omnow to provide a packing ring 3 of suitable material to lay onl the bead. The container cover i usually is provided with 'a'circur'nferential flange 5 which overlies the packing ring and the bead. y The clamping ring comprises'a split. channelled ring having flanges 6. and 1 for engaging. the coveriiange and the bead 2 respectively, vto press the cover 4 into sealing contact with the packing when the ring is contracted.

Inthe present invention the ends 8 and 9j of the` clamping ringL I0 overlie oneV anothery regardless of Whether the. ring is fully contracted about the .coveig or Whetheritl is fully expanded toD remove it.

The underlying ring end 8 is preferably ydevoid of the flanges 6 and 1 along that portion engaged by the other end 9 to permit the ends to be freely telescoped as shown in Figures 2 and 3.

In further carrying out my invention, I have provided an extremely simple and positive means for expanding and contracting the ring by simply rotating an eccentrically operating member in one direction or the other about a horizontal axis. This means is carried by the ring itself and is preferably located to operate along the outer circumference of the ring, as illustrated in the drawing, although it will be understood that in accordance with the invention this means may be located within the confines of the head or even below the bead of the container. But perhaps the simplest and most economical form of the invention is as illustrated, with the contracting and expanding means carried by the ring along its outer peripheral Wall.

The overlying end 9 of the ring is slotted lengthwise at Il to slidably receive a stud I2 which is fixed to the ring end 8'. The stud projects through the slot and closely carries a rotatable cam or eccentric member l2 having a handle portion or lever I3 projecting therefrom in a plane substantially parallel to the member I2. The stud is headed as at I4 to retain the cam or eccentric on the stud.

The ring end 9 is also provided with spaced stops or abutments I5 and I6 which may be welded to the outer surface of the ring as illustrated or they may be formed by slitting and upsetting the ring Wall outwardly. The stops are in alignment withv the elongated slot II in the ring end and are spaced sufliciently from the ends of the slot and from each other to accommodate thecam I2 along its major axis.

position. To expand the ring the handle Ior lever I3 is moved to the position shown whereupon'the cam I2 will be rotated so that its toe portion II lies in the direction of and abuts the stop I6.-

Since the cam is carried by the ring end 8 on the stud I2 the ring ends will be forced in opposite directions circumferentially to enlarge the circumference of the ring when the lever and cam are in the position shown in Figure 3. l

When it is desired to contract the ringto seal the cover on the receptacle, the` handle or lever I3 is swung vertically over the ring and then down to the horizontal position shown in Figure 2. Such action, of course, rotates the cam approximately 180 in a counter-clockwise direction about the stud I2' and first releases the expanding pressure against the stop I6 and as the toe. I1 of the cam begins to engage the stop I5 in the approach of the handle to the horizontal position in Figure 2, the ring ends are forced to move in opposite directions circumferentially I to reduce the ring circumference or to contract it tightly about the bead and cover flange and to thereby press the cover downwardly against the packing and bead in sealing relation. It will be noted that the lever I3 is offset from the plane of the cam as illustrated clearly in Figure 4. Thus the lever or handle will have freedom of movement over the stops I5 and I6 in its movement in either direction to contract or expand the ring. I -1 Y I have -also provided means for preventing unauthorized access to the interior of the sealed container and this means has the added advanpast its substantially horizontal position when the ring is contracted as shown in Figure 2. The lever carries a lug I9 which abuts a similar lug on the ring end 8, both lugs being apertured to receive a sealing wire or the like 2I.

In Figure 7, I have illustrated one of the stops I5 in more detail, that is, the face of the stop which is engaged by the toe I'I of the cam I2 is preferably formed with. depression or seat 22 into which thel toe ofthe cam will come to rest. The stop IB is similarly formed. Thus the lever in either extreme ring contracting or expanding accidental displacement by the seating of the V15J'toe" IIin either depression 22.

. It will be notedv from Figure 4 that the entire ring closing assembly does not protrude beyond the outer circumference of the ring to any appreciable degree and therefore offers no objectionable obstructions when receptacles embodying this invention are stored side by side. Likewise, no interfering vprojections are present which would prevent stacking of the receptacles one above the other.-

The invention offers many other advantages due to its simplicity of construction, positive operation either` in contracting or expanding the ring, 10W cost of manufacture and ease of operation.

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 claim.

I claim:

In a transversely split sealing and clamping ring of the class described, in which the'ends oi the ring intert for limited telescopic movement, means for expanding and contracting the ring including a pair of stops on the outer` telescoping ring end and spaced circumferentially thereof, said ring end being slotted circumferentially between said stops, and a rotatable cam carried by the inner .telescoping ring end and overlying tage of preventing the lever from being moved said slot and the outer ring end, said cam having a portion engageable with but one stop when the cam4 is rotated in either direction and engageableA with theother stop only whenV the cam is rotated throughan arc of substantially `ARTHUR H. VAN HORN.

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