US2625297A

US2625297A - Liner for steel barrels

Info

Publication number: US2625297A
Application number: US792467A
Authority: US
Inventors: Ernst R Koppel
Original assignee: Borg Warner Corp
Current assignee: Borg Warner Corp
Priority date: 1945-08-22
Filing date: 1947-12-18
Publication date: 1953-01-13
Anticipated expiration: 1970-01-13

Description

Jan. 13, 1953 E. R. KOPPEL 2,625,297

LINER FOR STEEL BARRELS Original Filed Aug. 22, 1945 Patented Jan. 13, 1953 LINER FOR STEEL BARRELS Ernst R. Koppel, Chicago, Ill., assignor to Borg- Warner Corporation, Chicago, 111., a corporation of Illinois Original application August 22, 1945, Serial No. 611,977. Divided and this application December 18, 1947, Serial No. 792,467

4 Claims. (01. 220-63) This invention relates to metal barrels and has especial reference to a sheet steel barrel havingv a stainless steel liner and is a division of my application, Serial No. 611,977, filed August 22, 1945 for a Liner and Tap Ring for Steel Barrels which has matured into Patent No. 2,460,756.

It is one of the principal objects of this invention to simplify the construction of steel barrels, such as contemplated herein, and to improve the efficiency and dependability of such barrels.

A further principal object is to construct a steel barrel with a stainless steel liner in a manner which effects a much. stu-rdier assembly than stainless steel barrels heretofore produced. In this connection the barrel shell is comprised of a plurality of sections united by welding; the arrangement being such that the relatively thin liner is not noticeably affected by the welding operation which joins the shell sections.

Still another object resides in providing a liner of stainless steel for a sheet steel barrel wherein the interior of the barrel presents an approximately continuoussmooth inner surface which is unbroken by outwardly bulged pockets, which form deep recesses or-the like which render the cleansin of the barrel a difficult and uncertain operation. As a result this assembly produces a barrel of a highly sanitary character.

' Also it is an'object hereo'f'to provide a lined sheet steel barrel wherein the liner conforms to the inner contour of the shell substantially throughout the superficial area of the interior surface of the shell, whereby the liner has a continuous unbroken surface and is effectively supported by the shell without extraneous devices.

Still another object is to provide a chime arrangement for a stainless steel lined metal barrel wherein the chime rings are made separate from the barrel shell, thereby eliminating the necessity of forming the chimes integrally with the shell. Prior barrels on which the chimes are mouths of the pockets.

Another object is to provide a stainless steel lined metal barrel, the shell of which comprises two or more suitably shaped sections, with the approximate margins telescoped and united by a welded seam. This arrangement allows slight endwise variations for assembling the shell sections in encompassing relation to the liner to se- 2 cure a surface contact fit of the liner in the shell. Also there is a slight clearance between the joint or" the shell sections and the liner to prevent heat transfer during welding the joint.

The above mentioned and other aims or advantages of the present invention will be apparent to persons skilled in the art after theimprovements contemplated herein are understood from the within description taken in connection with the accompanying drawing which forms a part hereof, in which:

Fig. 1 shows the improved barrel in elevation with portions thereof in broken away section.

Fig. 2 is an enlarged fragmental section showingdetails of the tap hole fitting assembled with the barrel head and liner.

The drawings are to be understood as being more or less of a schematic character of the purpose of disclosin a typical or preferred form of the improved metal barrel assembly contemplated herein.

The. body or shell of this barrel is of an all metal type of prefabricated sheet steel construction and comprises two similarly shaped sections I0 and II. These shell sections are of relatively deep bowl-shape, the rims or margins of which have radially offset portions 0a and Ha, respectively, extending circumferentially around the respective sections. The-shape and dimensions of offset portions Illa and Ila are such that the rim of one section may be telescoped on the rim of the other section and then welded togetherv .to assemble the complete barrel shell.

This arrangement permits of slight variations when assemblingthe shell sections l0 and II over the liner with which the barrel may be provided, as

will later appear.

The heads 12 of the barrel are of shallow dome shape and atthe junctions where'the domes meet the side walls of the shell there are terminal regions I3 having a segmental or arcuate cross section. Adjacent these terminal regions l3, the barrel shells have abutments I4 which are made by providing well-defined shoulders in the walls of the shells. The purpose of this corner or terminal arrangement is to provide an improved and dependable manner of quickly assembling the chimes on the barrel.

The usual bung-hole fitting I5 is inserted in an aperture located centrally in the barrel, said fitting belng anchored to the margin of the bunghole in any suitable manner, preferably by a leak-proof welded seam. Sheet metal bilge hoops 18 having u section with lateral wings i1 embracing the mid-region of the shell, are welded on the exterior thereof to constitute the rolling tracks or rings of the barrel.

The chimes 18 at the ends of the barrel are made of separate blanks or strips of steel which are anchored to the barrel in a novel and effective manner which avoids theformation of pockets in the shell and the use of reinforcement incident thereto in either a lined or unlined barrel. The construction and arrangement of these chimes are such that they effectively reinforce and support the ends of the barrel, and they provide hand-grips by which the barrel may be lifted. Each chime l8 comprises an annulus of L'-shaped cross section having a radially inwardly extending flange l9, and an axially extending attaching flange 2a which is, in effect, a c ntinuation of the barrel contour. Flanges i9 and are reinforni 'ed by a plurality of channels or indentations 19a and 23a, respectively, and the inner margin of radial flange is has a rolled bead 2! as shown in Fig. 1. Chime flange 28 also has a segmentally or arcuately formed region or annular outwardly curved emboss'ment 22 extending alongits margin, the inner surface of which fits the curved corner or terminal region is of the barrel to which it is united by welding. As seen, the margin of embossment 22 abuts shoulder M on the shell, and when the chimes are assembled on the shell they are preferably anchored tothe shell by a welding operation which may be performed at the same time the hoop I6 is welded in position so that both operations are performed on one machine, thus reducing time and labor.

The tap fitting 23 is preferably made from stainless steel and is shown as comprising the axial tubular stub 24 terminating at its inner end with an annular flange 25 on which there is a shoulder 28. The central region of the barrel head has an inturned axially extending cylindrical portion 21 terminating in a lateral flange 28 arranged radially to the shoulder 2-6 of the fitting 23 and to which it is anchored by an outside weld in the manner hereinafter described. Conceivably, other types of fittings, allowing for different closures, could be attached in a similar with their proximate edges abutting and welded together at 3!. The cuter contour of the assembled liner conforms in practically all respects to the inside contour of the barrel shell or body, and

.its inner surface has a smooth contour which facilitates the cleansing of the barrel and insures a sanitary condition. At th'e offset portions Illa.

and i la of the barrel shell the liner has a slight clearance 32 between it and the shell which provides a gap to prevent heat transfer from the shell to the liner when the shell sections are being welded. Otherwise the liner isin intimate contact with allportions of the barrel shell so that it is effectively'supported by surface contact therewith. V

Adjacent the'tapfitting'fl the head of the liner curves inwardly as'at'33 providing a depressed central region with oblique walls. This depressed or oblique region 33 of the liner terminates inwardly in an .L-shape flange 34 having a cylindrical shape and axially disposed with respect to the tap fitting 23. In assembling the liner flange 34 with the fitting, the flange 25 of the fitting is pushed into the cylindrical portion 34 in a telescopic manner so that the lateral or radial lip of liner flange 34 is interposed between the shoulder 26 and the flange 28 of the head. When thus assembled the fitting 23 and head flange 28 together with the liner lip are permanently assembled, the fitting 23 and head flange 28 together with the liner lip are permanently anchored by means of an outside weld 35.

By reasonfof theimproved assembly for mounting thetap fitting 23 in the head of a barrel having a stainless steel liner, the outer end of tap stub 24 is beneath the highest portion of the head '12 and this lhighportion of the head is, in turn, back ofor beneath the plane of chime flange l9. Thus the head and the stainless steel tap fitting are eifectively protected by the chime when the barrel is up-ended and standing in an upright position on a chime, and damage to the fitting and the thin liner at the head of the barrel is pre vented. Also it will be apparent that the out side weld 35 which unites the fitting to the barrel head is protected against damage and, in the event a leak occurs, it will immediately be observed a'nd may be readily repaired merely by renewing the weld 35 without removing the fitting.

The improved arrangement disclosed herein eliminates the objectionable pockets hereinbefore mentioned, and it eifects a substantial reduction in the costof manufacture. Furthermore, a continuous smooth interior surface is presented hr s t s rfi e a i-t e arrel inerior. Any small oifset regions which may appear in the drawings arefvery shallow and are approximately no greater than the thicknessof the metal from which the shell is fabricated. During the fabrication ofth'e barrel the liner sections are preformed to the inner'contonr of the shells, are welded'tog'ether, and then the shell sections, with the chimes and hoops welded in place, are fitted around th' 'e'corn plete linerin close contact thereto. Thereafter, the shell sections are waded together in t e ma iner he ein e o e i ed All this is done without injury to the thin stainless steel ic fihe i e s ma While the invention has been disclosed in a typical or preferred embodiment thereof, it will beapparent to-persons skilled in the art, after understanding the invention, that changes or modifications :thereof may be made without departing "from the spirit'of the invention. It is aimed in 'the'a'ppended'claims to cover all such changes or modifications.

1. A metal barrel comprising a shell, and a stainless-steel liner thereforsaid shell comprising opposed bowl shapesheet metal sections havmg their'rims "anchored together and the bottoms of said sections providing domed barrel heads, the interior of said shell having an apdomed regions withinthebarrel heads, said'liner having continuous unbroken contact with the superficial area of i'the-shell andbeing supported solely by surface contact therewith; and atap hole assembly on oneof said barrel heads compri i sge flan ed ta ho shav n an annular shoulder at the outer'region of its flange;

an inturned annular flange at the crown of said shell barrel head defining an exterior depression axially in said head; an annular lip at the inner region of said inturned shell flange and bounding the tap hole; an annular region at the crown of the adjacent liner head extending inwardly away from the crown of said shell head and having a lip joinin said shell head flange at the lip of the latter thereby providing a truss-shape structure at the crown of the barrel head, said liner lip and said shell lip resting on said fitting flange in proximate relation to said fitting shoulder; and a readily accessible exterior weld anchoring said superimposed lips to said fitting flange at said shoulder and providing the sole connecting means between said shell, liner and tap fitting.

2. In combination with a sheet metal barrel shell of annular hollow contour having domelike heads closing the ends thereof, one of said heads having a tap aperture therein; an L-shape inturned flange on said head defining a depression surrounding said aperture; a tap hole fitting having a tubular stub protruding through said aperture, and having a radial flange at its inner region with a circumferential shoulder on the outer surface of said flange receiving the lateral member of said L-shape flange; those improvements which comprise an annular sheet metal liner in intimate contact with the inner surface of said shell and having domelike heads in intimate contact with said shell heads, one of said liner heads having an aperture registering with said shell head aperture, said apertured liner head havin an inwardly extending annular region spaced from said shell head and surrounding said liner aperture; a terminal lip on said annular liner region received by said fitting flange, said lip and said lateral member of the shell head flange being arranged in superimposed relation to each other and resting on said fitting flange adjacent said shoulder; and a readily accessible exterior weld anchoring said superimposed lip and lateral member to said fitting flange, and connecting said lips and fitting in unitary assembly.

3. A barrel formed wholly of sheet metal comprising, an annular hollow shell having domelike heads closing the ends thereof; an inturned flange on one of said heads defining a depression with a terminal lip radial to the axis of said shell and bounding a central aperture; a tap hole fitting defined by a tubular stub protruding through said aperture, and having a radial flange at its inner region and a circumferential shoulder on the outer surface of said flange; an annular liner having domelike heads lying in intimate contact with the inner surface of said shell and domes, the liner head adjacent the depression in said shell head having an aperture registering with said shell head aperture, an annular region on said liner head extending inward away from said shell head and havin a terminal lip next said shell head lip and bounding the liner aperture; said lips being arranged in superimposed relation to each other and engaged with said fitting flange at said shoulder; and a readily accessible exterior weld anchoring said superimposed lips to said fitting flange at said shoulder, and connecting said lips and fitting in unitary assembly.

4. In combination with a hollow sheet metal barrel shell of annular shape and having domelike heads closing the ends thereof; an inwardly extending flange on one of said heads defining a depression with an annular terminal lip radial to the axis of said shell; a tap hole fitting having a tubular stub with a radial flange at its inner region, the circumferential edge portion of said fitting flange having reduced thickness to define a supporting shoulder on its exterior surface; those improvements which comprise an an nular sheet metal liner having domelike heads lying in intimate contact with the inner surface of said shell and domes, the liner head adjacent said shell depression having an annular region extending inward away from said shell head for defining a depression of greater diameter than said shell depression and with said shell depression providing a truss structure surrounding said tap hole fitting, an annular terminal lip on said liner head next said shell head lip; said terminal lips being coaxial and arranged in superimposed relation to each other and resting upon said fitting flange adjacent said shoulder; and a readily accessible exterior weld anchoring said superimposed lips to said fitting flange adjacent said shoulder and connecting said lips and fitting in unitary assembly.

ERNST R. KOPPEL.

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

UNITED STATESPATENTS I Number Name Date 611,003 Roth Sept. 20, 1898 650,949 Phillips June 5, 1900 1,904,755 Wolf Apr. 10, 1933 2,013,325 Wilkins Sept. 3, 1935 2,038,420 Coakley Apr. 21, 1936 2,043,694 Battles June 9, 1936 2,090,668 Deutsch Aug. 24, 1937 2,099,113 Hollnagel Nov. 16, 1937 2,326,137 Gettelman Aug. 10, 1943 2,372,800 Stearns Apr. 3, 1945