US1737676A - Container having bung - Google Patents

Description

Dec. 3, 1929. v P H 1,737,676

QONTAINER HAVING BUNG Filed May 28, 1928 :i if

Patented Dec. 3, 1929 UNITED STATES PATENT OFFICE RICHARD L. PARISH, OF CHICAGO, ILLINOIS, AS SIGNOR TO AMERICAN FLANGE &, MANUFACTURING 00., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS CONTAINER HAVING BUNG Application filed May as,

My invention relates to containers, such as metallic barrels, having holes therethrough for the reception and discharge of liquid or for furnishing air vents enabling such discharge and having suitable closures which are provided with flanges that lap annular seats surrounding the holes and which containers employ guards which have ring portions whose openings are substantially coaxial or aligned with the holes and other portions lapping the closures to guard the same from undetectable removal.

Separately formed gaskets have hitherto been employed against which the ring portions of the guards have been clamped to prevent leakage. It is the object of my invention to avoid the necessity of these separately formed gaskets, the invention residing in a unitary structure comprising such a ring portion and a gasket assembled therewith prior to the employment of the guard. In carrying out my invention, the ring portion of the guard has an endless ridge which is initially hollow substantially throughout its length and which is integrally formed with the ring.

This ridge surrounds the hole in the container and is entirely disposed between the flange of the closure and the flange seat. This ridge is hollow and contains a ring of suitable packing material which is compressible and sufficiently resilient to enable it to supplement the ridge in sealing the space between the clo sure flange and its seat.

The invention will be more fully explained by reference to the accompanying drawing showing the adaptation of my invention to the structure disclosed in Patent No. 1,633,555, issued to Francis R. Burgess, June 21, 1927. In the drawing, Fig. 1 is a sectional elevation illustrating a portion of a sheet metal wall of an oil barrel or other container, a flange bushing received by said wall and through which liquid may be passed into and out of the container, and a guard for the closure plug, the plug being shown in full elevation; Fig. 2 illustrates portions of theparts shown in Fig. 1 in separated relation and on a larger scale; Fig. 3 is a plan view of the structure shown in Fig. 1 on a larger scale and with 50 parts broken away and shown in section; and

1928. Serial No. 281,274.

Fig. 4 is a perspective view of the ring portion of the guard constructed in accordance with my invention.

The container, such as a metallic barrel, has one wall thereof, such as the sheet metal wall 1, formed with a'depending rim 2 which surrounds a circular hole formed through this wall. An interiorly threaded bushing 3 is snugly received within this hole and is closely surrounded by said rim, this bushing being shown with an outwardly curled inner edge portion 4: which grips the inner edge of said rim 2 and a circumscribing flange 5 which is tightly seated upon the wall 1, this flange desirably lapping this wall on the exterior of the container. The closure plug G is screwed within the bushing 3 and is formed with a circumscribing flange 7 which laps the flange 5 and wall 1. The outer end of the plug is formed with two tool engaging formations, one in the form of an enlargement 8 which is' of hexagonal or polygonal exterior contour, and the other in the form of a recess 9 extending through the enlargement 8, this recess being of square or other contour to rece1ve a wrench having a plug formation snugly receivable within and corresponding in shape to said recess.

The sealing device or guard illustrated is in the form of a hood of sheet metal comprising a body or skirtportion 10 that is inclusive of a ring portion 11 which is confined between the flanges 5 and 7. Said hood also includes a cap portion 12 which is not initially assembled or fully assembled with the body or skirt portion 10, the closure plug being tightly applied before the cap is finally assembled to enclose the plug portions 7, 8. The rims of the cap portion 12 and skirt portion 10 may be clinched together as illustrated at 13. All of the plug upon the exterior of the container is thoroughly guarded from undetectable access by the construction described.

The entire closure illustrated for the hole in the container wall includes the permanently applied bushing 3 and the plug 6 removably screwed within the bushing 3. Hitherto, a separately formed gasket was interposed between the ring portion 11 of the guard and the underlying flange 5, this flange constituting an annular seat substantially coaxial or aligned with the ring 11 whose opening is in register with the hole in the container. I eliminate the separate gasket and form it in a unitary structure with the ring portion 11 of the guard by forming an endless hollow annular ridge or channel 14 in and integrally with said ring portion, this ridge or channel defining an annular pocket into which is dove-tailed a gasket ring 15 and which preferably protrudes through theannular gap between the annular lips or margins of the pocket so as to have direct sealing engagement with the seat 5 for the ring portion 11. The inner Wall of the pocket is desirably flared outwardly and is split, as indicated at 16. As the closure plug 6 is screwed home, the annular ridge 14 is compressed together with the gasket ringwithin it and both become more or less distorted.

The inner wall of the pocket consequently has its flare increased thereby increasing the compression of the gasket ring. The extent to which'the inner wall of the pocket may have its flare increased as the gasket is compressed may be varied according to the width of such inner pocket wall and the plane initially occupied by the lower edge of this wall. In the preferred embodiment of the invention, the inner pocket wall desirably projects slightly below or beyond the part of the ring portion 11 which rests directly upon the seat 5 and surrounds the gasket ring whereby the gasket ring is compressed as having a hole-thru a wall thereof, a flanged bushing adapted to be inserted in the hole, a flanged closure plug cooperating with said bushing, and a member having a. ring portion of sheet metal adapted to be clamped between sald flanges, said ring portion being formed mto an annular channel, and a gasket supported and dove-tailed therein whereby said channel and gasket are distorted between the aforesaid flanges when the plug is screwed home, one of the walls of said channel being slightly inclined towards the gasket thereby to hold the same and yield as the aforesaid flanges are drawn together.

- In Witness whereof, I hereunto subscribe my name.

RICHARD L. PARISH.

much as is desirable when the closure plug is screwed home.

The gasket ring is desirably composed of mateaials having the proportions, by weight, state Per cent Ceylon crepe rubber Precipitated calcium carbonate 4.6.6 Zinc oxide powder 4.7 Sulphur 1.8 Tetra meth l thiuram disulphide .3

A quantity of benzol equaling the aggre gate weight of the above ingredients is added thereto.

Changes may be made without departing from the invention.

Having thus described my invention, I

claim 1. In a sput construction for a container having a hole thru a wall thereof, a flanged bushing adapted to be inserted in the hole, a flanged closure plug cooperating with said bushing, and a member having a rlng portion of sheet metal adapted to be clamped between said flanges, said ring portion being formed into an annular channel, and a gasket supported andd'ove-tailed therein whereby said channel and gasket are distorted between the aforesaid flanges when the plug is screwed home.

2. In a sput construction for a container

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