US2122054A - Bushing for steel barrel heads - Google Patents

Description

June 23, 193s. Q CURTIS 2,122,054

BUSHING FOR STEEL BARREL HEADS Filed May 29, 1936 l N VENTOR.

Patented June 2 8, 1938 STATES PATENT OFFICE BUSHING FOR STEEL BARREL HEADS David W. Curtis, St. Louis, Mo., assignor to Thomas Connors, St. Louis, Mo.

Application May 29, 1936, Serial No. 82,598

1 Claim. (01. 285-49) This invention-relates to steel containers, such as barrels, or drums, and more particularly, to a barrel head, and a plug receiving bushing secured thereto.

yThe'object of my invention is the provision of a barrel head and a screw plug receiving bushing therefor. which will permit of full drainage of a barrelr A, further object of the invention is the provision'of means to'prevent a bushing member secured .to abarrel head from rotation thereon and from tilting movement relative thereto.

.Afurtherlobject of the invention is the provision of means for retaining a sealed in gasket adjacentthe upper inner edge portion of a bushing member.

A still further object of. the invention resides in providing a screw plug receiving bushing with an endless groove in..its outer peripheral face adaptedv toreceive the free edge portion of a sealing cap skirt.

x A still further object of the invention is the provision of a steel container which possesses advantagesinipoints of'simplicity and efficiency, and, at the same time proves itselfcomparatively inexpensive in cost of manufacture.

With'? the aboveand other objects in view, the invention'cons'ists in the novel features of construction, arrangement and combination of parts hereinafterv more fully described and finally pointed-out in the claim hereto appended.

. I.Referring to the accompanying drawing forming'alpart of this specification, wherein like characters of reference denote similar parts through- 4 out the several views:

l'is a'top plan View with portions thereof broken away, of a barrel head, bushing, plug and the sealing cap embodying the features of my invention. 2 is a View partly in side elevation and partly insectional elevation of the parts defined in' 'Fig. 1 and clearly showing a full drainage efiect. j

Fig. 3"-is. a view partly in side elevation and partly in sectional elevation of the bushing.

Fig. 4 is a bottom'plan view of the bushing.

Fig. 5 is a fragmentary view of a metal barrel head' showi'ng a nozzle struck therefrom with a castellated or vertically recessed side wall.

Fig. 6 is a view partly in side elevation and partly in sectional elevation of a slightly modified bushing secured to a modified form of barrel head.

Fig. 7 is a top plan view of the modified form of bushing.

Fig. 8 is a top plan view of the modified form of barrel head to which the bushing shown in Fig. '7 is adapted to be secured.

In carrying out the invention as illustrated, particularly in one embodiment thereof, as shown in Figs. 1 to 5, inclusive, the reference character I designates a suitable metal barrel head of the usual gauge employed for such purpose. In this embodiment of the invention, a portion of the metal is struck outwardly to form an annular outwardly projecting flange, or wall 2, which terminates in an inwardly projecting horizontally disposed flange 3 surrounding a filling and discharge opening 4 of any desired diameter. The outer face of the outwardly projecting flange, or wall 2 is provided with a plurality of vertically disposed castellations or recesses 5 open to the upper face of the horizontally disposed flange 3. This flange structure struck from the metal barrel head forms a nozzle structure, as will be apparent from Fig. 2.

The reference character 6 designates, generally, a suitable metal bushing, preferably in the form of a drop forging, although not necessarily so, as it can be machined from a piece of steel or other suitable material, however, at greater expense. The bushing embodies an annular member I, internally screw threaded, as at 8 on a portion of its inner periphery.

An annular flange 9 projects downwardly a suitable distance from the inner lower edge portion of the bushing member 1. Also, a plurality of spaced apart lugs or lips l0 project downwardly a suitable distance from the outer lower edge portion of the bushing and preferably a shorter distance than the annular flange 9. The lugs, or lips ID are naturally spaced from annular flange 9, as clearly shown in Figs. 3 and 4. If the bushing is a drop forging, the lugs, or lips can be formed as projecting radially, or outwardly from the bushing member 1, as shown in the modification in Fig. 6 and designated l0, and

in Figs. 1 to 5 of the .drawing, the bushing is provided on its lower face with a suitable compressible gasket l3 and the bushing including the gasket is mounted or seated upon the horizontally disposed flange 3 surrounding the filling and discharge opening in the metal barrel head. When the bushing is thus positioned, the lugs, or lips ID are frictionally receivable in the castellations or vertically disposed recesses on the outer peripheral face of the wall or flange 2 of the barrel head nozzle structure, one of which lugs, or lips is shown in position, in horizontal sectional elevation, opposite a broken away portion of the annular flange 9, in Fig. 5, and clearly shows that by such application the bushing cannot rotate relative to the barrel head nozzle structure. After the bushing member has been thus mounted, or seated on the barrel head nozzle structure, the annular flange 9 is bent inwardly and squeezed, or crimped under pressure into tight and leak-proof engagement with the inner edge of the horizontal flange 3 and with the lower face thereof thereby compressing the gasket l3 to positively effect a leak-proof connection with the nozzle structure of the barrel head I. The flange 9 crimped in such fashion prevents lifting displacement of the bushing relative to the nozzle structure of the barrel head, the lugs, or lips ill prevent rotary displacement of the bushing relative to the nozzle structure of the barrel head and the crimped flange 9 and the lugs, or lips 10 secured as described tothe nozzle structure preventsany possible chance of the bushing of tilting displacement on the nozzle structure of the barrel head.

The reference character [4 designates a suitable bung plug which has screw threaded engagement with bushing screw threads.

The reference character l5 designates a suitable metal sealing cap having a skirt Hi, the edge portion of which is adapted to be crimped, or bent inwardly for reception in the circumferential groove, or channel I2 on the outer peripheral face of the bushing member 9. Various styles of sealing caps, as is manifest, may be employed.

In the modified form of invention illustrated in Figs. 6 to 8, inclusive, the barrel head I is not provided with the nozzle structure embodying the flanges 2 and 3, but is merely a flat head, and instead of having vertical disposed castellations, or recesses formed in a nozzle flange or wall, as in Fig. 2, the outer face of the barrel head I is provided with a plurality of spaced castellations, depressions, or recesses designated 5' adjacent the edge portion designated 3 of the barrel head I surrounding the filling and discharge opening designated 4 therein.

The bushing employed with a modified form of barrel head as described in the preceding paragraph, has the radial or lateral projecting lugs,

or-lips. l instead of the downwardly projecting lugs, or lips Ill as shown in Fig. 2, and the lugs, or lips I0 are seated in the outer facial recesses, or depressions on the flat barrel head instead of beingseated in vertically disposed recesses, or castellations in the outer wall of a barrel head nozzle flange as shown in Figs. 2 and 5. The horizontally disposed bushing lugs, or lips Ill when seated in the barrel head recesses, or depressions, as shown in Figs. 6 and 8, serve to prevent rotary displacement of the bushing relative to the barrel head and combined with the outwardly and upwardly bent annular flange 2 serves also to prevent tilting displacement of the bushing relative to the barrel head in a fashion similar to that disclosed in the embodiment of the invention shown in Figs. 2 and 5.

While the bung plug gasket and sealing cap can be used with the modified form of the invention, they are not shown, as it is not believed necessary in view of the showing in Fig. 2.

The bushing in its modified structure is exactly like the bushing shown in Fig. 2, except that the lugs II) project radially or laterally from the bushing member 1 instead of downwardly therefrom, and the barrel head I is not provided with the nozzle structure flanges 2 and 3, but merely with the head portion designated 3 which serves in the same capacity as the nozzle flange 3, but instead of being at an elevation to the barrel head proper as in Fig. 2 to effect full drainage of the barrel, it lies in a substantial plane with the barrel head proper, yet permits of efiicient drainage of the barrel.

While I have described herein a metal barrel head and a barrel head nozzle formed from the barrel head material and to which a bushing member is secured, it is apparent that the bushing can also be secured to the body of the barrel, if so desired.

The many advantages of the herein described invention will readily suggest themselves to those skilled in the art to which it appertains.

From the foregoing description, it is evident that a simple device for this purpose has been disclosed, but it is to be understood that I do not desire to restrict, or limit myself to the very details of the construction shown and described, which is merely illustrative, it being obvious that changes, not involving the exercise of invention, may be made without conflicting or departing from the spirit of the invention within the scope of the appended claim.

What I claim is:

In combination, a metal barrel head and an annular internally screw threaded member, the barrel head being provided withan outwardly flanged neck terminating inwardly at its outer end in a horizontal neck flange to provide an opening, vertical outer facial recesses formed on the neck and open to the outer face of the horizontal neck flange, the annular member being provided with a downwardly projecting. annular clinching flange adapted to be crimped outwardly into horizontal position to compress a gasket between the lower face of the annular member and,

the clinching flange, and the annular member being further provided with circumferentially spaced downwardly projecting lips directly opposite the clinching flange to frictionally engage in the outer vertical facial recesses on the outwardly flanged neck to prevent rotary and tilting displacement of the annular member relative to the flanged neck and neck flange.

DAVID W. CURTIS.

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