US1758929A - Method of making metal barrels and the like - Google Patents

Description

Patented 2D, 1930 PATENT oFFlcE JOHN J'. GAIN, Oil?V BAYONNE, NEW JERSEY METHOD or MAKING METAL BARRnLs AND THE LIKE Application Vfiled. J une 27,

This invention relates to improvements in a method of making metal barrels and the like and the principal object is the provision of a method whereby metallic containers such as barrels may be readily made on a production basis from pre-formed or pre-shaped metal and which will be strong and secure in construction and capable of standing extended usage and rough handling.

A further object of this invention is the provision of a process by which a sheet of metal is pre-shaped so as to be convex longitudinally thereof and also having a vgroove or grooves formed longitudinally thereon, this pre-'shaped metallic sheet being then cut into lengths, the lengths being bent into cylindrical form so as to form the body of the barrel, such as disclosed in my copending application for patent on metallic drum barrel or con'tainer, Serial No. 229,310 filed October 28, 192

To the accomplishment of the foregoing and such other objects as. may hereinafter appear, this invention consists in the process or method hereinafter described and then sought to be defined in the appended claims, reference being had to the accompanying drawings for illustrative purposes only.

In the drawings,

Fig. 1 represents a perspective view of a small portion of a metallic sheet after it has been rolled or otherwise shaped in one step of my new method or process, it being understood that the concavity shown and the grooves shown extend the full length of the sheet.

Fig. 2 represents a perspective view of the body of a barrel formed of one piece construction of suitable length cut from the` preshaped sheet shown in Fig. 1, and bent into cylindrical form.

Fig. 3 represents a perspective view of the body of a barrel formed in two parts cut from the pre-formed metal sheet of Fig. 1 and bent into cylindrical form to complement each other to form the barrel body.

I am aware that there have been numerous attempts to make metallic barrels and similar containers. For the most part these structures have been composed of a large number 192s. serial No. 288,565.

of parts which have to be assembled and se cured together involving complication of work and numerous joints and fastening means with the resultant disadvantagesof the possibility of breakage and disassembling, i and weakness in structure;V It vhas also been proposed to make metallic barrels ofshe'ets of f material rolled into cylindrical form and then to shape. these barrels with the normal barrel bilge, but so far as I am aware, this 4has never leo been satisfactorily done in such a way as to be commercially practicable in making a metallic barrel of general utility.

In my new method or process the resultant barrel is composed of a minimum number of vparts, the bilge being formed in the sheet of metal when the same ,is rolled. In other words, the metallic sheet which forms the /body of the barrel is pre-shaped with the characteristic barrel bilge during the rolling operationo-i1 the sheet of metal so as to prevent the introduction of flaws, inequalities and breaks `into the sheet metal, which occur when the shaping operationl is attempted after the sheet of metal is originally rolled.

In other words, in order to express this idea a little more clearly, when the sheet metal is being rolled it is of course being expanded and stretched in vall directions and during this operation, in my method or process, the sheet 80 1 is so rolled as to form the longitudinally extending c'onvex portion 2 throughout the full length thereof, see Fig. 41. It is this convex portion which forms the characteristic barrel bilge when the barrel is assembled. At the same time, or rather during the same operation,I also form the longitudinally extending grooves 3 in the sheetvof metalwhich when lthe barrel body is assembled, receive the wie shaped, the barrel lbody may be formed of one length or portion of metal, as indicated in Fig. 2, or it may be formed of two lengths, as indicated in Fig. 3. This is especially to noted in contradistinction to suoli metallic barrels as use a large number of parts or staves similar to the standard wooden barrel, in that respect. i .i

In making metal barrels in which the body is composed of a single length of the preshaped metal sheet, see Fig; 2, this sheet is cut into portions of such length that they may be bent or curved into a complete cylinder. Ordinarily, with a .normal bilged barrel, the length is cut so as to have alonger central part which isl to form the bilge, sc that in bending, the' edges will meet and the result will'be a bilged barrel. If a larger or smaller bilge is desired, different shaped lengths must be cut from the sheet as will be obvious to `one skilled in the art. This may be-done onvarious forms of apparatus, most `of which are quite simple and as the opera- 'tion involves no stretching or straining of the metal, no damage or weakening of the body ofthe barrel will result. When bent .into the cylindricalv form the body of the barrel will have the appearance of Fig. 2, vwherein 4 represents the body as a whole; 5 the joining seam where the ends of the length ofthe pre-shaped metallic Sheet may be-joined or fastened by any suitable means, Vif necessary; 6 the characteristic barrel bilge `or bulge; and 7 the grooves formed internally thereof nearr the top and bottom to receive the heads of the barrel, as is Well understood.

In the barrel shown in Fig. 3 the body is f formed of two lengths of the pre-shaped metal sheet and in this case each length is bent into a semi-cylindrical form, so that the two parts complement each other to form the :completed barrel body.` Otherwise, the structure and the operation are the same. .Of course it-is to be understood that barrel bodies may be formed by this method or process-having a greater number of parts than those shown, but one of the advantages 4of using this method or process resides in the fact that the barrel body may be composed ofv a minimum number of parts and be of substantially integral construction with the resultant maximum factor of safety.

' It is obvious that this process is advantageous in that metal sheets constructed in aci cordance therewith may be conveniently nested for shipping and storing as they are made in standard and complementary sizes. The matter of assembling them is simple as the parts being standard will readily iit each other'.l The barrel when assembled, will be strong in construction by virtue of its forniation and due to the fact that no flaws or weaknesses are developed in the material during the making of the same.

What I claim is:

l. The method or process of making metal barrels and the like which includes pre-shaping a sheet of metal during the rolling thereof to form a longitudinally extending convex portion or bilge therein, cutting said preshaped metal sheet into lengths and bending said lengths into cylindrical shape so as to form a barrel body.

2. The method or process of making metal barrels and the like-including the step of presliaping a sheet of metal while it is being rolled to form a convex portion or bulge therein, cutting said metal sheet into lengths and bending said lengths into cylindrical shape to form the body of the barrel.`

3. The method or process of making metal barrels and the like including pre-shaping a sheet of metal during the rolling thereof so .as to provide a convex portion or bulge therein and also forming at the same time, a plurality of grooves therein, cutting said metallic sheet into lengths and bending said lengths into cylindrical shape, the convex portion forming the bilge of the barrel body and the grooves being adapted to receive the heads of the barrel.

4c. The method or process of making metallic barrels and the like including pre-shaping a metal sheet during therolling thereof to form a convex portion extending longitudi# nally thereof and a plurality of grooves extending longitudinally thereof and near its edges, cutting said pre-shaped metallic sheet into lengths and bending said lengths to form the barrel body, said convex portion forming the bilge and said grooves being adapted to receive the heads of the barrel.

5. The method or process of making metal barrels and the like which comprises rolling a sheet of metal with a convex intermediate y portion7 the side edge portions being flat, and

at the same time rolling grooves into said side edge portions, cutting said pre-shaped sheet of material into lengths and bending said lengths into cylindrical form to provide a barrel body.

6.V The method or process of making metallic barrels and the like, including preshaping a sheet of metal during the rolling thereof so as to provide a. convex portion or bulge therein and also forming at the same time a plurality of grooves therein, cutting a suitable .length out of said metallic sheet and bending said length into cylindrical shape,

the convex portion forming the bilge of the barrel body and the grooves being adapted to receive the heads of the barrel. Y

7. The method or process of making' metallic barrels and the like, including preshaping a sheetof metal during the rolling thereof so as to provide a convex portion oi bulge therein and also forming at the same time a groove therein, cutting said metallic sheet to form a sheet of the desired dimensions, and

bending said sheet into cylindrical shape, the convex portionforming the-bilge of the barrel body and the groove being adapted to receive a head of the barrel.

8. The method or process of making metallic barrels and the like, including preshaping a sheet of metal so as to provide a convex portion or bulge therein and also forming at the same time a groove therein, cutting a suitable length out of said metallic sheet and bending said length into cylindrical shape, the convex portion forming the bilge of the barrel body and the groove being adapted to receive a head of the barrel.

9. The method or process of making metallic barrels and the like, including pre'shaping a sheet of metal so as to provide a convex portion or bulge therein and also forming at the same time a plurality of grooves therein, cutting said metallic sheets into lengths and bending said lengths into cylindrical shape, the convex portion forming the bilge of the barrel body and the grooves being adapted to receive the heads or' the barrel.

x In testimony that I claim the foregoing, I L" have hereunto set my hand this 11th day of J une, 1928.

JOHN J. GAIN.

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