US2005248A - Metallic receptacle - Google Patents

Description

E. D. THOMPSON METALLIC RECEPTACLE June 18, 1935.

Filed Sept, 5, 1935 INVENTOR. E'JwarJ D.

HIS ATTORNEYS.

Patented June 18, 1935 v v UNITED STATES PATENTT OFFICE I METALLIC nltclir'racnn Edward D. Thompson, Warren, Ohio, assignor to. The Stevens Metal Products Company, Niles, Ohio, a corporation of Ohio Application September 5, 1933, Serial No. 688,107

2 Claims. (cl. 220-10) k M invention relates to sheet metal receptacles Figured a view similar to that shown in Figsuch as drums, barrels and the like and relates ure 5 in which the flanged walls of the body and more particularly to that class which is formed end closure are rolled to form a double seam; of relatively heavy gauge sheet, wherein either Figure 7 shows the appl cation of a chime ring 5 or both of the end closures are double seamed to to the double S m n lus r In full m s c th b dy, the completed seam; and, u t f the b'ects of m invention resides in a Figure 8 illustrates seeohd embodlmen 0 y 11131 13; {if for ni ng a rein f orced double seam beinvention which is pertlculelly p d f r: u tween the walls of the body and the end closures. in connection W h rec p l s 0f the semi-1n- Another object of the invention consists in resuleted yD l inforcing a double seamed end structure for me- Referring fi st to Figures 1 to 7 inclusive, I tallic receptacles, whereby a very strong end will D e 0 describe he double seam and structure is provided thus permitting rough meth0d 0f t hii the Seine according o th treatment of the receptacles in transportation or N 22 5: i tl f t g dp e reference to the 15 oosein orsreadem men lusrae. y 15 22 3:, gfiiiig fig of 1 p In containers of the full insulated type the s de A still further object of the invention consists 'b Wallsof the contamer usually m pn g in bonding the abutting walls of a metallic retwo Shells fitted e w hin the other as at fan ceptacle of the full or semi-insulated type circum- 2 respectlvely, the Inner Shell b ig oilf talmnotfin 2o ferentially of the receptacle, before theend cloinside diameter until a t it is mse e w n sure is double seamed to the end walls of the h Outer shell h inner ll may then be I receptacle, whereby longitudinal movement bebflged indicated in e d aw ng. I Referrillng tween the respective ,walls of the body and/or particularly to Figure 2 it will be seen that w en the end closure is substantially eliminated, and these shells are assembled the end of the e 25 25 strength provided to resist buckling of shell projects beyond the end of the outer shell the walls when thereceptacle is dropped or is :i %g g: f i g b gig d gg: 33 53 tment. c ft lze r ilb j e t l a dv a n tzges g: my inv cumierentially of the body as at I, by any suitable will become more apparent as the following desuch *1 by welding; i :3 :3 scription of two'embodiments thereof progresses, twe n i a e 5 timse nd reference being made to the accompanying drawis paevented 2 i zgg at in ing, in which like reference characters are empor are e y the vicinity of the weld. While perhaps "a, ployed to designate like parts throughout the stronger bond may be obtained by a continuous samea circumferential weld, it is to be understood that 35 the drawing" the weld need not be continuous. The next step Figure ,1 is an elevatlon of a metallic receptaconsists in t ardly flanging the portion 3 of cle embodying one form of my invention, the the inner shell as indicatedm Figure Same shwn Partly in section: Similarly, each end closure for the full insu- 40 Figure 2 IS a fragmentary section of the body laud type may be f d by inserting the 40- walls of the receptacle, showing the same intishaped end piece 5 within t outer end closure mately bonded together circumferentially near The abutting walls of th end closures 5 d t e r ends; 4 t are similarly intimately bonded or welded as at figure 3 is a View similar Figure 2 and I, preferably circumferentially of the seam, there lustrates the second step in carrying out this embeing an outwardly extending flange 3 formed, on

bodiment of my invention wherein the inner wall 4 t t r a d closure I.

is flange utward y. when the end wallsof the body and the end Figure 4 is a view of one of the end closures emclosure are thus formed they are assembled as pl in the embodiment shown in Figure 1 shown in Figure 5. In assembling these parts inwhich the walls of the end closure are intithe end closure preferably fits snugly within the mately bonded together, the outer wall being inner shell and is pressed downwardly in place flanged outwardly. as indicated in the figure, the flange 8 overlying Figure 5 is a similar view showing the struc- 'the flange I as shown.

- tures illustrated in Figures 3 and! assembled to- Further carrying out the process of double gether. seaming the end structure and the flanges l and 8 are subjected to a rolling operation, so that the flange I is rolled inwardly and about the underside of the flange 3 as indicated in Figure 6.

The final step consists in applying the chime ring a which has a portion II which extends downwardly against the horizontal wall of the end closure 5 and is provided with a portion II 'which is bent downwardly as indicated by the arrow and dotted lines as shown in Figure 7 to the full line position in this flgure, wherein the end I! of the chime ring is bent inwardly toward the outer shell and upwardly against the roller.

ring is rolled into place in longitudinal movement of the receptacle body walls and end closure walls is eliminated. I have found where such relative movement is permitted the double seam is subject to spreading, this being particularly true where a filled receptacle is dropped but a few feet on its side bilged walls. By my invention I believe thatthe bonding of the walls as described not only reinforces the end structure at and in the vicinity of these walls but helps to distribute the shocks to which the receptacle is subjected in rough handling.

In Figure 8 I have illustrated my invention as applied to a receptacle of the semi-insulated type. In this form of the invention the inner shell 2 is inserted in the outer shell I as previously described, the shells being intimately bonded together as at i. In carrying out this form of my invention, however, the end closure l3 comprises a single cup-shaped member, the upstanding flange ll being adapted to snugly fit against the upper end of the inner shell 2 when assembled in place. The adjacent walls of the flange l4 and the shell 2 are also intimately bonded together as bonds 4 and I5 preferably extending around the periphery of the container. After these walls are thus assembled and bonded together, the chime ring !6 may be applied in the usual manner and rolled so that the end I! is tightly pressed against the outer shell wall I. V It will be seen in connection with this embodiment of rm; invention that by intimately bonding the receptacle end walls I have accomplished the same advantages of reinforcement for the end structure as are accomplished in connection with the embodiment shown in Figures 1 to 7, likewise in the second embodiment relative longitudinal movement between the walls vented.

By my invention I have produced a metallic receptacle having flxed closed ends and which is extremely durable and rigid in use, thus permitting rough handling without danger of disturbing the same or causing leaks at the seam. Furthermore, the method of forming the end structure embodying my invention is extremely simple and inexpensive to carry out.

Various changes in the details of construction and arrangement of parts may be made without departing from the spirit of my invention or the scope of the appended claims.

I claim:

1. A metallic receptacle comprising inner and outer shells spaced apart except in the vicinity of their outer ends, the end portion of the inner shell overlapping the end of the outer shell, said ends of the shells being firmly bonded together, an end closure for the open end of said inner shell, saidend closure comprising flanged members spaced apart throughout their body portion but closely fitting one within the other along their flanges, said closure flanges being firmly bonded together, the flange of the outermost member overlying the flange of the inner member and the overlapping end of the inner shell, said shell overlapping ends and closure overlying flange being subsequently rolled over the respective remaining shell and closure ends into a double seam.

2. A metallic receptacle comprising a body, an end closure for said body, said body comprising an inner shell and an outer shell spaced apart from the greater portion of their length and welded together circumferentially near their terminal ends, the end of said inner shell extending beyond said outer shell end, said end closure having a flange extending beyond said inner shell flange when the closure is in position to close the receptacle open end, said inner shell end and said cover flange being rolled outwardly over the peripheral edge of said outer shell end to form a double seam at the end of the receptacle.

EDWARD D. THOMPSON.

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