US2031290A - Open head drum - Google Patents

Description

Fb. 18, 1936. H G VAU HN 2,031,290

,OPEN HEAD DRUM Filed June 26, 1953 substantially parallel at their inner edges.

Patented Feb. 18,1936

PATENT OFFICE 2,031,290 OPEN HEAD DRUM Harold Gar Vaughn, Warren, Ohio, assignor, by

mesne assignments, to Wilson & Bennett Manufacturing Company, Chicago, Ill.

Application June 26, 1933, Serial No. 677,695

6 Claims.

My inventionrelates to metallic receptacles and closures therefor. The general object of the invention is to provide simple means for securely but detachably clamping the cover of a metallic receptacle or drum to the rim or circumferential bead with fluid tight eifect.

Other and further objects and advantages of the invention will be understood from the following description considered in connection with the accompanying drawing, in which: 7

Figure 1 is a top plan view of the invention, showing the cover on the receptacle tightly sealed; 7

Figure 2 is a top plan view showing in dotted l lines the position assumed by the clamping link preliminary to clamping operations;

Figure 3 is a fragmentary view of the clamping ring;

Figure 4is a section taken on line fl--t of Figure 1;

Figure 5 is a detail view of the link and cam member; and

Figure 6 is a fragmentary sectional viewtaken on the line 6-6 of Figure 2.

Referring more particularly to the drawing 5 denotes a barrel or drum such as commonly employed for shipping grease, oils and the like. The upper open end of drum 5 is rolled outwardly and downwardly and thence inwardly to provide l a reinforcing bead t for supporting a cover I. This cover is centrally depressed or cupped to seat snugly within the open end of the drum, and is formed with an outwardly and downwardly curved peripheral flange portion 8 partially con- 3 forming to the curvature of and adapted to seat upon the upper portion of head 6. If desirable any suitable form of packing ring, not shown, may be inserted between the bead 6 and flange 0 of the drum'and cover respectively.

l The cover which is readily removable for filling or other purposes is clamped in place by means of a split contractible clamping ring 9 of substantially U-shaped cross section which embraces the head 6 and flange 0 and exerts a uniform clamping pressure thereagainst when contracted. The upper flange engaging wall and the lower bead engaging wall of the ring are This split ring 9 is formed at opposite ends with in- 50 wardly extending lugs l0 and l I, either integrally downwardly at 12 and thence inwardly as at IS in a horizontal plane parallel to but approximately midway between the horizontal planes of the cover I and lug l0.

A lever l4 pivotally connected at its inner end to lug ID by means ofpivot pin I5 is adapted to be sealed against accidental or unauthorized movement when swung to locked position beneath an apertured ear l6 projecting inwardly from the top wall of ring 9, the outer end of the lever'being apertured at H for this purpose. A collar 23 maintains the, lever in slightly spaced relation with respect to the lug N]. A link l8 pivotally connected at one end to the top face of lever It, adjacent the pivotal connection E5 of the latter, by means of a pin l0, carries a pin 20 at its other end which pin 20 is adapted to line position. When pin 20 is seated in the notch 2i, and lever it is moved in a clockwise direction about pivot pin it, to Figure 1 position, the

ends ofclamping ring 9 will be drawn towards each other and the ring will exert a substantially uniform pressure on the flange B and head it in a direction substantially parallel to the axis of the drum ii.

It'will be noted that when the lever it is moved to force the pivot pins 85 and 20 toward each other, there will be a slight tendency to spring the adjacent ends of the ring outwardly due to the leverage or spacing of these pins away from the ends of the ring. Such outward projection of the ends of the ring is somewhat objectionable and in order to draw these ends in more closely to the cover, a cam member or plate 22 is provided for engagement with the inner face of the vertical wall of cover 7, during clamping or closure operations. -This cam plate is pivotally mounted at one end on the lower end of pivot pin it and at its other end is connected to link It by bolt or pin 20, a. spacing collar 24 being employed to provide ample space 25 between the link it and plate 22 for reception and free relative movement of lever it.

The notched end of lug I l is offset as previously explained, to lie in the same horizontal plane occupied by the space 25 between the link and cam member 22 so that pin 20 of link I 8' can be hooked over said notched end and lodged in the notch 2|, as indicated by dotted lines in Figure 2.

. When pin 20 has been completely seated in notch 2| by appropriate manipulation of lever ll, the outer end of curved edge 26 of member 22 contacts the wall of cover 1 adjacent the lug I l, and as the lever is moved to Figure 1 position the entire edge .26 is forced with cam eifect against said wall, thus exerting considerable outward pressure against the cover and serving to draw the endsof the contracting clamping ring inwardly against the flange and bead. The cam member 22 which is approximately the same length as link II, is of suflicient length to substantially span the entire area occupied by the two lugs II and II and also is of such size and shape as to exert considerable lateral pressure against the side wall of the cover, throughout this area, and to cause the ring to be tightly clamped about the beadand flange when lever I4 is moved in a clockwise direction to locked or sealing position.

It will be noted that the link II and cam member 22 are connected through the lever ll, with but one end of the ring a and that the ring can; therefore be readily applied to and as easily removed from the drum, without disturbing the lever connection with the ring. c

Having thus described my invention, what I claim is:

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 said bead, of a split contractible channeled clamping ring having walls engageable'with the flange and bead for pressing the same together when the ring is contracted, inwardly extending lugs adjacent the ends of said ring, a lever for contracting said ring pivoted to one of said lugs, the other of said lugs having a notch therein, a link pivoted to the lever and carrying a pin at its other end for engagement with said notch, and means carried by said link which engages with the adjacent sur-' engages with the adjacent surface of the side.

wall of the cover having means at its fraz end for engagement with the other end of said ring and cam means carried by said link for exerting outward pressure against the side wall of the cover. A

3. In a clamping device for metallic receptacles having a bead rolled about its open'end and a cover having a flange fltting over the head. a contractible channeled split clamping ring to press the and cover flange together, means for contracting the ring including a lever pivoted to one end of the ring, means pivoted to the lever at one end and having means'at its other end means for detachable engagement with the other end of said ring and cam means carried by and movable with the means pivoted to the leverwhich engages the side wall of the cover for exerting outward pressure against the side wall of the cover. I

4. The combination with a receptacle having a bead at its open end, and a cover having a flange fitting over the bead, of a contractible channeled clamping ring having walls engageable with the flange and bead for pressing the same together, a lug adjacent one end of the ring extending inwardly on a plane coincident with the horizontal plane of the top wall of said ring, a lug adjacent the opposite end or the ring and bent downwardly and then inwardly in a plane parallel to but approximately midway between the horizontal planes of the upper and lower walls of the ring and having a notch at the inner end thereof, a lever for contracting said ring pivoted to the under side of the flrst named lug, a link comprising parallel members pivoted to said lever and positioned on opposite sides thereof and having a pin at its other end for engagement with said notch, the lower of said link members havingv an outwardly projecting portion adapted to engage with the cover to assist in drawing the ends of the ring inwardly when the ring is contracted to closing position.

5. A split closing ring for containers, having a lever pivoted at one end of the ring and a link having a pivotal connection with the other end of the ring and with the lever and adapted to draw the ends of the ring toward each other when the lever is swung to closing position, and

means on the link intermediate the ends thereof adapted to engage with a portion of the cover of the container for drawing both ends of the ring inwardly when the ring is drawn to closed position. s

6. The combination with a receptacle having a bead at its open end and a removable cover having a flange fltting over the bead, of a split contractlble clamping ring having walls engageable with the flange'and bead for pressing the same together when the ring is contracted, inwardly extending projections adjacent the ends of the ring, a lever pivoted to one of said projections, a link having a pivotal connection with the lever and with the other projection, and means on the link intermediate its ends for exerting a lateral pressure outwardly against the cover when the ring is contracted whereby both ends of the ring will be drawn inwardly.

HAROLD GAR VAUGHN.

GERTiFICLTE 0F OORRECTION.

Patent No-.' 2,051,390 February-18, 1936.

HAROLD GAR VAUGHN.

I't ia hereby eertified'that error appears 111 jibe printed lpecification of-the ebove nmnb eredpa tent requiring correction as follows Page 2, first column lines 1+9 and 50, cleini 2 strike out the words "which engages with the adjacent surface of the side wall of the borer" and insert the same after "l nk! in line 52, same .claimyerd that the and Letters Patent shouldbe read w1th'this ?:orrect 1on therein-that the seine meqeonferm to the record ofthe case 1n the P'atentioffice- Signed and sealed this 51st din of May, A'. 1958.

Henry Van Arsdale,- (SeaI) Acting .comiiq'sioner 'of Patents;

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