US2392959A - Paperboard drum - Google Patents

Description

R. H, VAN sAUN 2,392,959

PAPERBOARD DRUM.

Filed Aug. 21, 194s' sheets-sheet 1 l l ,y iii] vlnwlllaylllrn 11,1111 "1.1111111:

Jan. 1-5, 1946.

9 2 w m w 2m .e h S 3 N mm swl, NM2.. Ami. 3 VMM H.Pd v Ae .Pl R i F m faz/671507# arzrz- PEJL 50,1472/ Jan, l5, 1946. R. H. vA-"N sAUN PAPERBOARD DRUM v Filed Aug. 2l, 1943 3,.|Sheets-Sheet 5 Patented Jan. .15, 1946 uNrrED STATES PATET PAPERBOARD DRUM Raymond H. Van Saun, Mount Prospect, Ill., as-

signor to Container Corporation of America," Chicago, lll., a corporation of Delaware ,Application August 21, 1943, suini No. 499,54@

` 1s claims (ci. 22e- 5.5)

form which can be manufactured from ordinary paperboard sheets and which will withstand a large amount of hard usage in storage and transportation.

Other and more specic objects of the invention will become apparent as the description proceeds. i

In the drawings:

made in accordance with the present invention.

showing a considerable portion of the drum.

broken away to reveal a fragmentary vertical section;

Fig. 2 is a plan view of the blank on a somelwhat reduced scale from that indicated in Fig. 3 is a pian view of a strip of sheet material which is adapted'to form a band for use in connection with the drum head or closure;

Fig. 4 is a plan view oi theA blank forming the main portion of the drum head or closure;

Fig. 5 is a plan view ot a paperboard disc amdapted for use with the blant illustrated in s. f

Fig.. 6 is a horizontal sectional view taken alone line in Fig. i, looking in the z direction o! the .i

. :I is avertical sectional view'of a somewhat modied form o! 'paperboard drum, illus-u. tratins the top closure elementseparated from f It.

the drum;

Fis. s is a plan view of a modiied form o! band for the closure: 1

Fig. 9 is a perspective view of the closure band element illustrated in Fis.' 8,' the band in assembled relation:

Pig. 10 is a plan view of a modified roi-m of,v closure band element; I 1

1l is a perspective view of the closure band element illustrated in Fig. 10 showing the'trec' ends of the band secured together;A Fis. 12 is a vertical sectional view of a still further*modified form of drum which is adapted to be employed with any suitable form of closure we 1 euch as illustrated in Figs. 1l and 7, one o! the band elements illustrated in Figs. 9l or 11 employed to provide a reinforcing top edge Yorthedrum:

Fig. 13 is a vertical sectional view of a still turfther modified form of drum showing the closure element separated from one end; and

Fig. 14 is a perspective view of the closure band 5 element illustrated in Fig. 13 showing such band element in its condition prior to the step of folding its tabs around a, reinforcing member such as a wire hoop.

The paperboard "drum herein disclosed is inlo tended to provide an exceptionally sturdy and rugged form of drum which will effectively replace drums of steel and heavy wooden barrels in the shipment of many types of'plastic and liquid maf terials such as waxes, asphalt, resin and similar f l5 materials as well as many iforms of powdered or Fig. 1 is a front view oi' an assembled drum erally at A2li, and upper and lower .closure mem-= bers, indicated generally at 2i and 22.

The body member 20 is shown in Fig. 2 in blank form and preferably comprises a recer l. sheetof strong paperboard or similar brous ma- 25terial having its ends brought together into over `lapping relation and secured as by means oi staples 23, 23 or other suitable securing means. The upper and lower closure elements 2l and 22 of the paperboard drum illustrated in Fis. l'

' 36 are, in the present instance, identical and the description of one will therefore sumce. The cio sure 2| preferably comprises a main closure disc 24 and auxiliary disc 25 and a reinforcing band 28. The disc Mis formed on its peripherywith -a securing portion in the form of a plurality oi tab members 21, 2l. cut so as to form tapered notches therebetween so that the tabs will have parallel lateral edges,

' whereby they may be bentl over so as to bc 40 posed at right angles to the plane of the disc, in

These tab members are which position they will abut edge to edge.

' For the purpose of facilitating bending over' of the'tabs 21, 21 the main closure disc Qd is formed with a substantially circular score or '45 crease line 21a which is spacedinwardly a short' distance from theinner termini of the tapered notches deilning the tabs from each other. Short slits 2lb, 2lb are formed in the disc Qd between the score 21a and the ends of the notches. By

this construction, the bending over of the tabs will be facilitated and'edges of the tabs will be caused to lie in Hrm lateral engagement with each other to provide a tight closure construction. v

While the tabs 21, il may be held in do-s liturned position in various ways, it is preferred line.

to employ the band element 2l having its ends secured together by a staple 28 or other suitable securing means, whereupon, the band is slipped over the disc 24 and into contact with the tabs 21 thereby holding the tabs rmly at right angles to the surface of disc 24. The tabs are preferably permanently secured to the band 28 as by means of staples 28, 29 clinched against the inner faces of the tabs.

The auxiliary disc 25 is intended to be secured centrally on the disc 24 and is so dimensioned as to provide an annular recess between the edge of the disc 25 and the down-turned tabs 21, 21. As shown in Fig. l, this recess indicated at 38, is adapted to receive the end of the body member 20.

The disc 25 is suitably cut away at 3l so as to provide a slightly enlarged part in the 'annular recess 38, indicated at 82 so as to accommodate the extra thickness of the body member due to the overlapping of the ends of the body member. (See FigB.)

As previously stated, the closure 22 is preferably identical in construction with the top closure 2 I however this bottom closure is preferably permanently secured to the lower end of the body member 25 by means of staples 22a, 22a which pass through the tabs 21, the reinforcing band 28 and the body member 25 and are clinched against itsinner surface. y

Referring to Figs. 'I to l2 inclusive illustrating certain modifications of the form of drum just described, the drum therein illustrated comprises a body member, indicated generally at 55, and upper and lower closure members indicated generally at 85 and 21.

The body member 35 is formed from a rectangular sheet of paperboard similar to that shown in Fig. 2 and has its ends secured together as by means of staples 38, 58. The upper end of the body member 35 is provided with a reinforcing band 88 which may be similar to the band 25 shown in Fig. 3, or integral with member 35 and defined therefrom vby a conventional cut score as staples 45, 40.

The closure element 38 comprises a disc 42 similar to the disc 24 having tabs 48, 48 formed on its periphery which are adapted to be folded downwardly at right angles so that their side This band is secured to the outer surface of the body member 55 by securing means such' edges will abut as explained previously in connection with the closure disc 24.

For the purpose of holding the tabs 43, 48 in a position at right angles to the disc 42, there is provided a reinforcing band 44'having its ends secured together by staples 45, and having along one edge a fold-over section or flange member 48 defined from the section 44 by means of a score or crease line 41 and in which is formed a plurality of closely spac'ed score or crease lines 48, 48 thereacross, giving the desired degree of flexibility to the fold-over flange member 48, whereby, after the ends of the band 44 have been secured together, the flange member 48 may be bent inwardly and then upwardly'as viewed in Fig. 9 to form a band element that is'U in shape in cross-section, as best seen in Fig. 7.

The band is assembled with the folded-over tabs 43 by first placing the unscored part in-con tact with the -outer surfaces of the tabs and then forcing the scored flange member 48 over and into fiat contact with the inner faces of the tabs 43, 48, in which position the ange member 48 will contact the inner faces of the tabs with a degree of firmness depending upon the thickness and strength of the material from which the band 44 is formed. When the band element 44 has been folded over the tabs 43 as just explained, the parts are preferably stapled as indicated at 49, 49.

The inner disc 50 is similar to the dise 25 except that in the present instance this disc is made somewhat smaller in diameter so as to accommodate the extra thickness of the upper edge of the drum as seen in Fig. '7. Thus, between the periphery of the disc 50 and the surface of the section 46 of the reinforcing band 44, there will be formed an annular recess 5 I.

The disc 58 will preferably be cut away at one portion, not shown, ina manner similar to the cut-away portion 3| of disc 25. (See Fig. 5.)

Th'e construction of the lower end of the drum illustrated in Fig. 'Z will now be described. It is to be noted that the lower end of the body member 35 is not provided with a band such as 59 secured to the top. The lower closure element 31' may be identical with the upper closure element 36 except that it is very slightly smaller in diameter due to the lessened thickness of the lower end of th'e body member. The reinforcing disc 50 will provide between its edge and the inner faces of the foldable section 48, an annular recess 5Ia into which the lower edge of the body member 35 is intended to fit rather snugly. This annular recess is shown slightly larger than it ac- -tually would be for the purpose of clarity. A sealing compound 5|b is preferably introduced into the recess 51a so that it will effectively close the joint between the lower edge of the drum body 35 and the closure 51.

The closure element 81 is preferably perma nently secured to the lower edge of the body member by means of staples or similar securing means.

'I'he reinforcing band 44 is suitably cut away as indicated at 5211i Fig. 8 so as to facilitate turn.- ing in the foldable section 48 at the stapled joint in the reinforcing band.

The modified form of reinforcing band illustrated in Figs. l0 and 11 comprises a strip 58 and a fold-over section or flange member 54, defined therefrom by a score or crease line 55. The flange member 54 is provided with a plurality of closely spaced score or crease lines 58, 88 thereacross to facilitate the folding of the ange 54 when the band has been secured in circular form.

The ends of the band 53, as illustrated in Fig. l1, are secured together as by means of staples 51, 51. Instead of forming a cut-out portion such as indicated at 52 in the-band 44, the flange member 54 is separated from the main portion 53 by means of a notch 59 extending inwardly from the end substantially as far as the extent of the overlap to form an extension on the flange member. (See Fig. l1.) The extension on the fiange member 54 is also preferably stapled to the other end of the flange member as indicated at 50, 44.

The band 58 is adapted to be assembled with the fold-over tabs 48 of the closure element in the same manner as described above in connection with the band 44.

'I'he band 58 is also adapted for use Ain the construction of drum illustrated in Fig. 12. In this view, there is shown a body member 82 formed from a rectangular blank of sheet material similar to that illustrated in Fig. 2. The upper end of the body member 82 is provided with a reinforcing rim formed from the band 53 illustrated in Figs. 10 and ll. Staples 43, 43 are preferably employed for securing the band!!! to the upper end of the body member 82.

lhe lower end of the body member 62 is provided with a closure which comprises a disc 84 having down-turned tabs 85, 65 adapted to lie snugly against the inner surfaces of the lower end of the body member 82. A band member 86 which is substantially identical with the band member 53 is secured on the lower end of the body member and has its unscored part on the outside, with the scored part on the inside of the drum, bearing against the tabs 65, 65 on the closure disc. The band member 66 is preferably so constructed as to provide a wider fold so as to accommodate at least two thicknesses of paperboard, namely, the tabs 65, 85 and the lower end of the body member 62. After the band member 8B is placed in proper position on the lower end of the body member, the fold-over section 81 is forced upwardly and then inwardly into contact with the tabs 66, after which the band member may be secured to the body member by means of staples 68, 68.

The modified form of drum illustrated in Figs. 13 and 14 will now be described. The drum disclosed in Fig. 13 comprises a body member 10 formed from a rectangular blank of sheet material and is provided with an upper closure member 1i and a lov'er closure member 12. The upper closure member 1| comprises a disc 13 having down-folded tabs 14, 18 on its periphery.' These tabs are held in position by a closure band mem` ber 'l5 having a fold-over section 18 defined from the principal part of the band 15 by means of a score or crease line 11. The ends of the band are held together by means ofstaples 18 and one end of the band is cut away at the end of the fold-over section 18 as indicated at 19, making the band substantially identical with the band 44. The closure -13 has an auxiliary closure disc 80 K secured to the under-side of the disc 13 as by means of adhesive. After the tabs 14, 14 have been folded to a position at right angles to the disc 13, the band 15 is adapted to be placed thereover. Before placing the band over the disc and in contact with the tabs, the fold-over section 'id is folded so as to lie in substantial contact with the part 15. A reinforcing member preferably in the form of a heavy Wire loop or hoop di is enclosed between the fold-over section 18 and part 15 so as to give greatly increased strength to the closure. After the band is in place, as indicated in Fig. 13, the band is preferably secured to the tabs by means of staples 82, 82.

As previously described in the other forms of closure, the auxiliary disc 80 is so dimensioned as to leave an annular groove 83 between the down-turned tabs 1B, 14 and the edge of the disc du. This annular groove will thus accommodate the end of the body member and make a snug closure. y

The lower closure 12 is preferably identical with the upper closure 1i except that it is preferred to have this closure permanently secured to the lower end of the body member 10 and, for this purpose, staples 85, 85 are employed which pass through the body member as well as the tabs 14, 1d and the two thicknesses of the band member 15.

The annular recess or groove 83 provided by the bottom closure construction is arranged to receive the lower ends of the body member 10 to form a snug fitting arrangement.

From the foregoing it is to be observed that the construction of drum illustrated in the various mdied forms provides a construction which is simple-in form but exceptionally sturdy and is adapted to withstand a considerable amount of hard usage in handling. AWhile the present description sets forth certain preferred forms of the the present embodiments shall be considered in all respects as illustrative rather than restrictive, reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

l. A drum of paperboard or similar sheet material comprising a body blank having oppositely disposed edge portions secured together in overlapping relation by staples or the like to form a substantially cylindrical body member, and a closure member for each end of said body member, at least one of said closure members including a closure disc having a plluality of tabs integrally formed on the periphery thereof, said tabs being at right angles to the plane of said disc and adapted to lie in non-overlapping relation around the outer surface of said body member at an end v thereof, and a strip of said material having a lon- -gitudinal score line therein defining a band memhaving a plurality of score lines thereacross and being folded over against the inner surfaces of said tabs, Saidtaibs lbeing secured atleast to said band member by staples or the like.

2. A paperboard drum according to claim l including va second disc secured to the inner surface of said closure disc, said second disc having a diameter slightly smaller than the inside diameter of said body member at one end thereof,

whereby said end lies between the periphery of said second disc and said flange member.

3. A paperboard closure for a substantially cylindrical drum comprising a closure disc having a plurality of tabs integrally formed on the pe- 4 riphery thereof, said tabs being at right angles riphery thereof, said tabs being at right angles to the plane of said disc and lying in adjacent non-overlapping relation, and a strip having a. longitudinal score line therein defining a 'band member and a flange member, said band member having its ends secured together by staples or the like and lying against the outer surfaces of saidI being secured to the opposite ends .of their rel spective members.

5. A paperboard closure for a substantially cylindrical drum comprising a closure disc having a plurality of tabs integrally formed on the peto the plane of said disc and lying in adjacent non-overlapping relation, and a strip having a longitudinal score line therein defining a band member and a, flange member, said band member having its ends secured together and lying perpendicular to said disc exteriorly of said tabs, and said flange member having a plurality of score lines` thereacross and being folded over to lie against one of the surfaces oi said tabs, at least a major portion of said tabs being secured at least to said band member by staples or the like.

6. A paperboard closure according to claim 5 wherein each of said tabs is secured at least to said band member and said flange member.

1. A paperboard closure according to claim 5 including a wire loop engaged between said band member and said flange member adjacent said longitudinal score line.

8. A paperboard closure according to claim 5 including a wire loop engaged between said band member and said flange member adjacent said longitudinal score line, said members being secured to the outer surface of each of said tabs.

9. A drum o! paperboard or similarsheet material comprising a body blank having oppositely disposed edge portions secured together to form a.v substantially cylindrical body member, and a closure member for at least one end of rsaid body member including a closure disc having a plurality of tabs integrally Iormed onv the periphery thereof, said tabs being at right angles to the plane of said disc and lying in amacent nonoverlapping relation, and a strip having a lon gitudinal score line therein defining a band member and a flange member, saidband member having its ends secured together and lying perpendicular to said disc and exteriorly of said tabs, and said ilange member having a plurality of score lines thereacross and being folded over to lie against one of the surfaces of said tabs, at

Y least a major portion of said tabs being secured meest tosaid band memberl by staples or the 10. A drum according to claim 9 wherein said staples also pass through and secure said flange member in folded position.

11. A drum according to claim 9 wherein said staples also pass through said body member adjacent one end thereof.

12. A drum according to claim 9 wherein said flange member is folded over the ends of said tabs and one end of said body member, and said staples also pass through said flange member and said body member.

13. A drum according to claim 9 including a second disc secured to the inner surface of said closure disc and so dimensioned as to provide an annular recess adjacent the periphery thereof adapted to receive one end oi said body member.

14. A drum according to cl; im 9 including a second disc secured to the inner surface of said closure disc and Vso dimensioned as to provide an annular recess adjacent the periphery thereof wherein one end of said body member is received, and a. sealing compound filling the small openings between said body member and the means defining said recess.

15. A paperboard element adapted for use with a substantially cylindrical paperboard drum comprisinga strip havinga longitudinal score line therein deilning a band member and a flange member, said'band member being adapted to have its ends secured together so as to form an annular structure, and said nange member having a plurality of score lines thereacross, whereby said flange member can be folded over to lie within and substantially coaxial with said band member.

RAYMONDH, VAN SAUN.

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