US 1643252 A
Description (OCR text may contain errors)
Patented Sept. 20, 1927.
STATES EABULD E. MQCRERY, F APOLLO, PENNSYLVANIA,
DRUM COMPANY, 0F PITTSBURGH, PENNSYLVANIA,
ABSIGNOR T0 PITTSBURGH STEEL A. CORPORATION 0F DELA- SHIPPING DRUM.
Application led Hay 10, 1926. Serial No. 106,138.
This invention relatesto metal shi ping drums and more particularly to a hea construction therefor.
An important object of theinvention is to provide a metal shipping drum having the upper end of the body portion thereof turned inwardly and snugly fitting against the body of the drum, a portion' ofthe in'- wardly turned end being extended inwardly to form an annular head supporting shoulder. y
A further object is to provide a drum of the above mentioned character having a I novel form of head adapted to coo crate with the shoulder referred to, the hea having an annular shoulder ada ted to seat against the annular shoulder o the body of the drum.
A further object is to provide a drum pf the character just mentioned wherein a suitable gasket is arran ed betweenthe shoulders of the head an body, the head being l provided with a downwardly extending portion substantially fitting within the shoulder of the body to prevent displacement of the gasket.
A further object is to the character outlined w erein the head is provided with an upstanding annular flan e substantially fitting .within the inward y extending ortion of the body, the upper end of the ody extending a substantial distance beyond the annular flange and adapted to be turned inwardly over the ange to seal the head in position.
Other objects and advantages of the invention will become apparent during the course of the following description.
In the drawings I have shown one embodiment of the invention. In this showprovide a druin of in l gure 1 is a central vertical sectional view,
Figure 2 is a detail vertical sectional view w showing portions of the drum before assembling t e head, Figure 3 is a detail sectional view taken transversely throu h the seam of the body, Figure 4 is a agmentary vertical sec 5 tional viewfthrough the lower end of the drum showing the parte asembled, and,
` Figure 5 is a similar view showi the lower end of the drum turned inwa y' .to form the finished end of the drum.
Referring to the drawings, the numeral 10 designates the body of the drum as a whole which may be formed of any suitable material s uch as rolled sheet metal. The body is provided with an interlockin ,seam 11 of 'the usual construction', and tis seam may be reinforced by longitudinal ribs 12 stamped outwardly from the body of the drum substantially parallel to the seam. The ribs 12 also serve to retain the edges of the metal of the body in proper position to prevent bowing thereof when the seam elements are assembled. The body of the drum is provided adjacent eachend with a series of reinforcing corrugations 13, and inwardly of these corrugations the body is rolled or stam ed outwardl to form integral substantie, ly annular ribs 14 which act as rolling hoops. l
The upper end of the body is formed substantially cylindrical for a considerable length, as shown at 15. Beyond the portion 15, 'the metal of the body is provided with a chime or inwardl projecting' ortion 16. The chime is forme integral with the metal. o f the body and is turned inwardly to iit snugly thereagainst, as clearl shown in Figure 2. A portion of the c ime is bent inwardly as at 12 to form a horizontal annular rib against which is adapted to seat a head to be described. The upper end of the' body` and the chime 16, are rolled to form an annular bead 18 to assist in bending the top of the body over in a manner to ap ar. The upper extremity of the body and c ime are provided at spaced intervals with V- shapedor other suitable cut out portions 19 to facilitate the inward bending of the metal. Referring to Figure 2, the numeral 20 designates a head as a whole. This head includes an outer substantially cylindrical upstaiidingflan e 21 and a horizontal shoulder 22 arrange parallel to the shoulder 17. The headis further provided with a downwardly extending cylindrical portion 23 which is adapted to substantiall lit within the shoulder 17 when the hea is assembled, as shown in Figure 1. The head is further' provided wit a solid bottom 24 formed integral with the inwardl extend ing portion 23. A suitable gas et 25 is adapted to be interposed between the shoulders 17 and 22 to seal the drum Iwhen de sired.` From an examination of Figure 2, it
will be .apparent that the distance between 'llhe lower end of with a substantially cylindrical flange por- .,tion 26 arranged inwardly of and slightly spaced from `the body of the drum. rllhe assembled. The bottomor lower head 28 isall Lid
space between the flange 26 and the body of the drum is adapted to receive a substantially cylindrical. liange carried by a bottom head 28. The' lower end of the complete drum, as shown in Figure 4r, is bent inwardly'after the elements are assembled, as shown at 29 in Figure 5. ,871
l The operation of the device is :as follows: "The seam 11 is interlocked, asfwill be apparent, the beads 12 serving to maintain the seam members straight while they are belng then placed in position in the manner pre- -viously described after which the drum 1s .ready to be filled'for shipment. After the drum is filled, the gasket 25 is arranged on the shoulder 17, after which the head 20-is placed in position. ilbviously, the shoulder 22 will rest'Y upon the gasket125 while the portion 23 of the head will project through the shoulder 1.7, thus eEecti-vely preventing displacement of the gasket. 'lhe flange 2l substantially tits wit inthe chime 16, and
the upper edge of the dan `e 2l is arranged substantially inwardly A o the bead '18. After the head has been placed in position las described, the upperends ofthe body and chime 16 are bent inwardly as indicated. in
Figure 1 The bendinoaction referred to is facilitated bythe bead 18 and the contraction of the metal due to the bending operation is compensated `for by the provision of the cut out portions 19. The bending operation serves to clamp the head downwardly, thus permitting the gasket 25'to form a seal at theupper end of the drum. 'lhe inwardly bent ortions of the head and chime are preferab y ot sucient width to permit the end thereof to contact with the upper face of the shoulder 22 to assist in maintaining a sealed joint at the upper end ofthe drum; llt has been found that a drum constructed in the manner described is extremely durable and may be roughly handled without unsealing the head. .aa
-is to be understood that the form of the rvention herewith shown and described `is to' bejtalnin asa preferred enample of the @ameland-that various changes in theshape,
'portion of said head beine `upper aerienne ll claim:
LA shipping drumy comprising a sheet metal body having ,an upper portion of sub-4 stantial width turned downwardly within and contacting throughout the greater por A tion. of its length with said body to form a reinforcing. chime, aportion of said chime being extended inwardly to form a horizontal reinforcing shoulder, a head arranged in the upper end of Saddrum, said head in`- cluding a horizontalportion corresponding in width and arrangement to said horizontal shoulder and arranged thereover, the central extended. axially through the space deiinec by said shoulder and. substantially contacting with the inner edge of said shoulder, said head being `provided with a peripheral substantially cylindricalupstanding lange tting within the ortion of said chime, the upper portion o said body and said chime extending upwardly beyond saidcylindrical an'ge and adapted to be turned downwardly thereover, said body and Said chime being provided with a rolled outwardly extending bead substantially 'at the level of the upper edge of said cylindrical flange.
2.l A shipping drum comprising-a sheet metal body having an upper portion of substantial width turned downwardly within said ybody to. form a reinforcing chime, a portion of said chime intermediate its upper and lower ends bein extended inwardlyl to form a horizontal slioulder and thefn outwardly toward'said body, of said chime contacting with said body, a head arranged inthe upper end of. said drum and including a horizontal portion corresponding in width and arrangement to said' horizontal shoulder and arranged thereover, the centra-l ortion of said head being tended axial yvthrough the space delined bysaid shoulder and substantially contacting nainaan n nebenan the other portions ltllll