US2445730A

US2445730A - Reinforced sectional barrel

Info

Publication number: US2445730A
Application number: US580989A
Authority: US
Inventors: Max O Kuhn
Original assignee: Firestone Tire and Rubber Co
Current assignee: Bridgestone Firestone Inc
Priority date: 1942-02-27
Filing date: 1945-03-05
Publication date: 1948-07-20
Anticipated expiration: 1965-07-20

Description

July 20, 1948. M. o. KUHN I v 1 2,445,730

REINFORCED SECTIONAL' B ARREL 7 Original Filed Feb. 27, 1942 2 Sheets-Sheet 1 MAX 0. KUH N July 20, 1948. M. o. KUHN 2,445,730

REINFORCED SECTIONAL BARREL Original Filed Feb. 27, 1942 I 2 Sheets-Sheet 2 /////////////I//l k\\\\\\\\\\\\\\\ Patented July 20, 1948 REINFORCED SECTIONAL BARREL Max 0. Kuhn, Cuyahoga Falls, Ohio, assignor to TheFlrea tone Tire & Rubber Company, Akron,

Ohio, a corporation of Ohio Original application February 27, 1942, Serial No. 432,673. Divided and this application March 5, 1945, Serial No. 580,989

3 Claims. 1

This application relates to containers, and

more especially to single walled metallic containers.

The present application is a division of applicants prior application, Serial No. 432,673, filed February 27, 1942, now matured to Patent No. 2,381,385, issued August 7, 1945.

An object of the invention is to provide an improved container comprising corrosive and noncorrosive metal, said corrosive metal being protected not only from liquid contents within the barrel, but also from direct contact with the atmosphere.

Other objects and advantages will appear to persons skilled in the art as the description proceeds.

In the drawings:

Fig. 1 is a view, partly in elevation and partly in section, of a container having the invention incorporated therein.

Fig. 2 is a view, largely in plan, but partially in fragmentary section, of the container shown in Fig. 1.

Fig. 3 is taken along line 3-3, Fig. 1.

Fig. 4 is taken along line 4-4, Fig. 2.

Fig. 5 is taken along line 55, Fig. 2.

Fig. 6 is a fragmentary view taken along line 8-8, Fig. '7, showing the manner in which the ends of the girth band reinforcing ring are connected.

Fig. 7 is a fragmentary view in plan of the girth band, with its supporting ring andthe supporting ring connections shown dotted.

Fig. 8 is an enlarged sectional detail of the girth band and reinforcing ring.

Fig. 9 is a fragmentary section showing a marginal portion of the center container section and. a marginal portion of the contiguously associated girth band.

Fig. 10 illustrates the members of Fig. 9 joined by seam welding.

Fig. 11 illustrates the seam welded members of Fig. 10 marginally ground to provide a planar abutting surface.

Fig. 12 illustrates in fragmentary section, an end closure member abutted and welded to the members of Fig. 11.

Like parts are identified with the same reference characters throughout the drawings and descrlption.

As best shown in Fig. 1, a single walled, substantially constant volume container ill comprises an annular center section II and a pair of cup-shaped members i2 and i3 applied to each end thereof in bonded relation thereto. A girth band 15 is applied to the peripheral surface of center section II, in a manner hereinafter described, to strengthen the container and to permit easy rolling thereof during transportation and handling. Suitable fluid transfer ports are provided as by tap structures It and I7 and bung structure IS. The container sections l2 and II have double walled chimes 20 and 2|, and integrally connected indented contoured heads 22 and 23. The heads of the container sections are reinforced against localized outward deformation by reason of their curved contour which results in increased rigidity thereof. The container end sections and the fluid transfer ports herein shown are similar to those illustrated in my patent, No. 2,354,425, dated July 25, 1944, Container and method of manufacture thereof."

The advantages of constructing a container for liquids. for example. a beer barrel, out of noncorrosive metal are well known. If a metal is used which corrodes upon contact of the fluid contents therewith, it is, of course, necessary to completely protect the interior container walls from such contact. It is general practice to apply a pitch lining or the like to containers stamped from ordinary sheet stock. The objections to such a construction are obvious, since rough handling in transportation is apt to break loose some of the container lining, especially if the wall is dented inwardly, allowing contact between the metal and the container contents. It is generally accepted that the most satisfactory container for the transportation and storage of beverages is the single wall container if properly designed to withstand shocks of transportation and handling. The provision of a rugged girth band is desirablefor ease of handling and protection of the center container portion. It has been the practice heretofore to provide a girth band of the same material throughout the container; however a substantial reduction in the cost of manufacture may be efiected through the provision of a two-part girth band l5 comprising an outer band 25 of lighter-weight material than required to sustain the shocks to which the container is normally subjected, the outer band being of the same material as the container, and

an inner band 26 of ordinary sheet steel or the like, the inner band 28 being maintained expanded against the inner wall'of band 25. Band 25 is marginally bonded to the central container section II in fluid sealing relation therewith to isolate the inner band 26, which is subject to corrosion from contact with the liquid contents of the container.

The-outer band is preferably formed in the following manner. A strip of non-corrosive metal is shaped to form a cylindrical ring, with abutted ends welded. The ring is then expanded into rough shape by internal dies operating to stretch the metal outwardly into general conformity with its ultimate contour as shown in Fig. 1. The ring is then cold rolled to finished shape; after which it is again expanded, by employment of internal dies or the like, to proper size. Reinforcing ring 26 is preformed for snug engagement with the inner wall of ring 25, ring '26 being of split ring form with the ends thereof Joined by connector plate 32 to impart an expansive urge thereto. Ring 26 is installed prior to the peripheral application of the girth band to the center section. Split ring 26 is contracted to allow disposition within the girth band, after which connector plate 32 is inserted between pairs of offset lugs 34 on the ring end portions, the plate being'longitudinally bowed to permit such inser-- tion. Suitable pressure is then applied to the connector plate to flatten the longitudinal bow,

thereby moving the ends thereof into pressure en-' gagement with the said offset lugs to provide a permanent expansive bias to maintain the reinforcing ring 26 engaged with the girth band. Plate 32 is constrained against lateral displacement by a longitudinally disposed center rib 36, Fig. 5, the rib also providing reinforcing means for the plate.

The bung port structure l8, Figs. 1, 2 and 3 is assembled in the following manner. Prior to the assembling of ring 26 within ring 25, a bung support ring 21 is welded to ring 26, preferably in the position shown, to'extend inwardly from the latter. Upon the assembling of the two rings, outer ring 25 is stitch-welded to ring 26 throughout the area adjacent the bung support ring 27. The wall areas within the rings are then punched out to provide bung apertures, and a bung insert 30 of non-corrodible metal is inserted within the bung aperture, said insert having an outer radial lip 31 in sealed engagement with the outer band 25.

The next step in the construction of the container consists of assembling center section II with girth band I5 which is effected by shaping a metal band to cylindrical form, welding the abutted ends thereof to form a ring, applying the above described girth band assembly thereover, and centrally expanding thecylinder intothe shape shown in Fig. 1, with marginal areas of the center section snugly engaging marginal areas of outer ring 25. Center section II as initially formed is somewhat wider than the ultimate width of the section, for reasons later explained. The marginal portions of center section II are then bonded to the marginal portions of ring 25, preferably by means of electric seam welding. Figs. 9, and 1], illustrate in fragmentary detail said marginal portions during successive phases of assembly. Fig. 9 shows the margins in a clamped assembly, while Fig. 10 shows portions thereof integrally bonded, as by electric seam welding. The margins of the section H and girth band 25 are next trimmed oil, as by grind ng, to effect a clean edge with welded parts exposed throughout the edges thereof, the trimmed edge being at right angles to the axis of the section'.

The central section of the container is now ready to receive the container end sections which are positioned in abutted relation therewith and atomically butt welded thereto as shown in fragmentary detail, Fig. 12, to complete the coirtainer.

As shown in Fig. 12, the end sections, such as i2, are of such size as to have their outer wall surfaces substantially flush in relation with the outer wall surface of the girth ring 25 when the sections are abutted, whereby the outer container wall presents a substantially smooth surface, the joint preferably being finished by grinding to remove the irregularities such as an.outwardly extending welding seam rib, if formed. Since the combined thickness of center portion II and the outer girth band ring 25 is substantially greater than the wall thickness of end portion l2, alignment of the outer wall surfaces results in wall ll being inwardly offset as shown. However, since the combined operations of seam welding and butt welding produce an efficient integral bond between the container portions ll, 25 and I2, the fact that section Ii is inwardly offset does not alter the reinforcing properties of the girth band 25 in respect to the central container section.

As heretofore stated, reinforcing ring 28 is maintained outwardly expanded to maintain pressure engagement with ring 25 by reason of connector plate 32 engaging paired lugs. Plate 32 is prevented from becoming disengaged from the associated termini of ring 26 as the result of inward deformation of the girth band, due to its close proximity to the outer wall surface of the central container portion H. While the girth band is preferably shaped in contour to provide a pair of spaced circumferential ribs as shown, bands having varying contours may be,

of course, employed without departing from the described comprising a centrally disposed generally cylindrical center section, a pair of cupshaped end sections, a girth band mounted on the peripheral surface of said center section with the marginal areas of said center section snugly engaging the marginal areas of the girth band, said marginal areas being bonded together by a fluidtight weld and terminating throughout in said welded portion, said girth band and said sections being composed of non-corrosive metal, said girth band at its center portion being spaced apart from said center section, a metal girth band reinforcement in the form of a transversely split ring between the girth band and said center section, said split ring having radially inwardly offset and longitudinally extending lugs formed at the ends thereof, said split ring being composed of corrosive metal, said split ring being expanded radially outwardly into supporting relation w th the under surface of said girth band, means in the form of a connector plate wedged between said opposed lugs whereby said split ring is retained in said supporting relation, the edge of the open end of each of said end sections .abutting an edge of said girth band and being 5 composed of corrosive metal, said split ring being circumferentially expanded against the girth band and retained in operative reenforcing position by means of a locking plate inserted between opposed radially inwardly stepped-01f and circumferentially extending opposed lugs integrally formed with the ends of said split ring, a bung fitting connected with said girth band and center section and traversing the space therebetween, the opposed edges of said end sections abutting and being welded to the edges of said girth band.

3. A barrel comprising two oppositely disposed tub-like end sections, an annular center section concave-convex in cross section, an annular girth band, said center section having said girth band superimposed, the central area of said center section and said girth band being spaced apart and their edge Portions being aligned and welded together in fluidtight relation, the inside of the radially outer wall portion of said girth band being reinforced by a transversely split ring. said split ring being circumferentially expanded against the girth band and retained in operative reenforcing position by means of a locking plate inserted between opposed radially inwardly of said girth band.

MAX 0. KUHN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS I Number Name Date 2,015,193 vReed Sept. 24, 1935 2,109,836 Ardenne Aug. 19, 1933 2,131,632 Lindell Sept. 27, 1938 2,226,109 Soper Dec. 24, 1940 2,354,425 Kuhn July 25, 1944 2,381,385 Kuhn Aug. 7, 1945 FOREIGN PATENTS 4 Number Country Date 26,900 Great Britain 1913