US2087733A - Receptacle and closure - Google Patents

Description

July 20, 1937. w. LOCKHART RECEPTACLE AND CLOSURE Filed May 2, 1955 I INVENTORL- willim ATTORNEYS Patented July 20, 1937 amass nEoEP'rAoLE AND o William Lockhart, Cleveland, Ohio, assignor to- Cornell Securities Corporation, "Cleveland,

Ohio, a corporation of Delaware Application May is, 1935', Serial No. 19,439 -=3 Claima, (01 229- 61 My invention is an improvement in metallic receptacles and closures therefor and relates more particularly to a clamping ring for removably clamping the cover on the receptacle in fluid tight '1 5 sealed relation thereto.

One of the objects'of the presentinvent ion is "a split channeled clampingring comprisinga plurality of sections pivotally connected together and having means bridging the ends of adjacent 10 sections for contracting the ring as aunit to seal a cover on a receptacle. Q r

Another object of the invention is to provide such a clamping ring'with independently operable link and lever connections at spacedintervals 15 about the ring, such'as at substantially diametri- Cally opposite points on the ring circumference. A further objectis to construct a clamping ring comprising two ormore sections, and connecting the adjacent ends of adjacent sections with'suitable means for drawing the ends together to seal a cover on-the receptacle in fluid tight relation, whereby different degrees of closing pressures may be applied to the cover. r Other objects and advantages of my invention will become apparent from the following description of one embodiment thereof, reference being made to the accompanyingdrawing inwhich like reference characters are employed to designate like parts throughout the same.

Figure Us a top plan view of an embodiment of my invention and shows the same applied in use; I v n. Figure-2 is an enlarged section taken on line 35 l -2 of Figure 1; c

Figure 3 is a fragmentary view of the ring applied in use and shows the same contracted;

Figure 4 is a fragmentary view of one link and lever connection and shows the adjacent ends of 40 adjacent ring sections separated in ring expanded position. In this view the connection employed is used to finally contract the ring;

Figure 5 is a view similar to that of Figure 3 and shows the substantially diametrically oppo- 45 site link and lever connection for applying the initial contracting forces to the ring sections;

Figure 6 is a view similar to that of Figure 4 and shows the longer link connection of Figure 5 in ring expanded position; I

50 Figure '7 is a view taken in the direction of line ring and the cover.

Figure lOis an elevation taken in the of line ill-l oftFigureb l c Referring now more particularly to the draw- 1B8, the barrel of drum isindicated at I. The t pperoopen end of the container is fcrmed with a peripheral bead 2. A cover 3 comprising a cupped or depressed head,vhavin'g a peripheral upwardly and outwardly extending flange 4, 15 supported by thebead I insuch a manner that the cupped portion. of ,the head or cover. may be telescoped 10 for; a short distance within the open ,end of "the drum, asi'llustrated inFigure'Z. itw'ill be noted that a portion 'of the flanged is of substantially ar'cuate cross section to with the ap proximate curvature of the upper ,surfaceof the" I head. A packing 5: consisting or "ancannulus'lof any suitable packing material,: such as flexible rubber tubing o'r cork; is interposed between the flange land-the bead. 2. v j v a According to the present invention rnavema 2o vided an improved means for remoyably, -secur ing the cover on' the dr'um or receptacle toetlect a'fluid tight seal'therebetwen byexertinga substantially uniform and iflrm'pressure along the cover flange and bead ina direction substantially I 2 parallel to ,,the.longitudinalaxis ,of the drum. Such means preferably includes a transversely splitlchanneled clampi eg ng iiv of-substantially U-shaped cross.section and which isfcapable of being expanded and contractedbysultablemeans. A

In the form illustrated -the-upper and lower flange and bead engaging walls respectively of the ring converge slightly toward the outer diameterjof the ring and engagethe cover flange and bead of the c container to press the sametog'ether tightly when I the ring is contracted; However, it is'to be 1mderstood that the ring and receptacle open end may be so designed that the cover will be pressed.

into a tight seal with a shoulder formed at the, A receptacle open end. when' the ring is expanded.

That is, instead of the receptacle being formed v with 9. rolled bead 2;.the open end may be formed with an annular shoulder and an'annular channel for receiving an expander type ring, a packing By contracting the type of. clamping ring here.- I in illustrated,- the cover flange will be pressed tightly against the packing 5 and the supporting bead 2 under a substantially vertical pressure.

In further carrying out my invention'the ring:-

B'is composed of a plurality of connected 'sections, preferably two, I and 8. Adjacentendsi r 9 and ill ofthe respective sections land 8 may I be movably connected together with a link and I v lever mechanism II and i2 respectivelmthe lever I 12 having pivotal connection with the end I as at I3. One end of the link H is pivotally connected with the end 9 of the ring section I as at H while its opposite end is pivoted to the lever I2 at l5.

The opposite ends of the ring sections I and 8 are likewise movably connected together with a link and lever mechanism l6 and H, the lever l1 being pivoted to swing outwardlyof theend l8-of the section 8 at l9,,while theishorterlink :IG. pivotally conects the lever ll at 20 with the adjacent end 2| of the section 1 as at 22. For convenience of operation, the levers I2 and H are both pivoted to the opposite'ends of the ring section 8,

and when they are swung to contract the ring and bring the sections together, they will move toward each other and the periphery of the section 8;

. an 0 pply a secondary sealing pressure to the To. expand the ring the levers are thrown outwardly as indicated in Figures 4 and 6.

Suitable retainers 23 and 24 are welded to the ring section 8 and are positioned to receive the "handle ends of the respective levers l1 and I2 and to retain them in closed position.

It is to be notedthat greater leverage is provided through one of the connections asatl6 and IT." This is desirable because in accordance with my invention the ring is contracte'd'initially to iii: the cover firmly in place upon the open end of thereceptacle'bypne link and lever connection, as at II and I2, and then further contracted' to apply even greaterclo'sing forces to the cover to seal the same in fluid tight relation to the receptacle. It isfound that, while the levers" are preferably operated 7 independently, thatis, lever I 2 is first swung to the position in Figure to close -the 'ring';-and1.lever I1 is subsequently swung to theposition; inFigure'3, these levers may be operated" simultaneously or in the reverse order. But greater'ease of operation is had if the leversare 'operatedin the preferred manner described. e

Each of the operating levers and the'associated.

links are arranged to operate; on thelupper'surface or the ring, which leaves the assembly free of objectionable obstructions when it is'desired to store the drums in close quart'ersJFurthermore, the drums may be rolled horizontally without interference from projections on the ring.

., While I have described the illustratedembodi ment of my'invention insome'particularity, ob-

viously many othersfwillreadily' oc'cu'rto those skilled in this art; and I do not, therefore; limit myself tothe precise details shown and described but claim as my invention all embodiments, variations and modifications thereof coming within the scope of the appended claims.

I claim:

1. A device for removably clamping a cover on the open end of a metallic receptacle including a channeled clamping ring split transversely at a plurality of points about its circumference and having portions engaging the. cover and the recepta cle to press the same together when the ring-is contracted, and means for contracting the ringincluding "levers pivoted tothe ends of one ring'section and swing'able outwardly ofthe ring,

links pivotally connected with the adjacent ends of an adjacent section and with said levers, one

of said operating links and levers having a greater leverage ratio than said other cooperating link andlever whereby said ring may be contracted sufllcien'tly to maintain acover in fixed position on the receptacle by operating one of said levers,

cover by operating the other of said levers. 2,}; device for removably clamping a cover on the open end of a metallicreceptacleincluding a channeled clamping ring split transversely at a cover-by operating the lethal of said levers. y

3. A device for removably clamping a, cover on the open end of ametallic receptacleincluding a; channeled clamping ring split transversely at aplurality of points about its circumference and ceptacle to press thesame; together when the ring iscontracted', *andm'eans for contracting the rlngfincluding levers pivoted to the ends of one ring section, links pivotally ,connected with the adjacent ends of an adjacent section and with said levers, one of said operating links and levers. having a greater leverage ratio than said other cooperating link and lever, whereby said ring may be contractedsumciently tomaintain a cover in fixed position onthe receptacle'by operating one of said levers, and to apply 'asecondary sealing pressure to the cover by operat'- ing the other of, said levers.

WILLIAM LVOVCKHART.

andto'apply a secondary sealing pressure to the having portionsenga'gi'n' gthe cover and ,the re-

Images