US2483964A - Sheet metal screw closure - Google Patents

Description

oct- 4 1949- s. A. BENNETT SHEET METAL SCREW CLOSURE Filed May 27, 1946 Patented Oct. 4, 1949 UNITED STATES TNT OFFICE 1 Claim.

This invention relates to plugs for barrels or other containers and more particularly to those having bung holes with internal threads.

The objects of this invention are to provide an improved plug or bung which may be cheaply made and which is particularly effective in use; to provide a plug formed of sheet metal, or the like, with novel means for turning the same; to provide a plug of the character indicated formed of sheet steel with an upwardly projecting attachment for engagement by means of a tool; to provide additional means for engagement in order to turn the plug; and in general to provide an improved plug of the character set forth herein after.

My improved plug is shown in the accompanying drawings in which Fig. 1 is a top plan view of the plug with insert or attachment in position for welding;

Fig. 2 is a sectional View taken on the line 2-2 of Fig. 1;

Fig. 3 is a sectional view taken on the line 3-3 of Fig. 1;

Fig. 4 is a plan view of the finished plug; and

Fig. 5 is a sectional view taken on the line 5 5 of Fig. 4.

As shown in these drawings, the plug or bung proper 6 which is preferably formed of sheet steel or other suitable metal, '1s in the form of a cup with a at bottom 'l and having threads 8 for engagement with the threaded hole or opening in the container. The upper end of the cup has an outwardly projecting ange 9 of hexagonal or other suitable shape for engagement with a wrench.

A substantially channel shaped insert I0 is secured in or attached to the plug as shown to provide additional means to be engaged by any suitable tool or bar for turning the plug. This insert is positioned with the'web or top II substantially parallel with the top of the plug and with the legs l2 engaging with the bottom l and secured thereto by welding, or the like. In accordance with my improved method of attaching such insert, the bottom 'l is provided with a plurality of teats or protuberances I3 under each of the legs I2. Then by means of contact or process electric welding, the parts are heated so that these protuberances become softened and the lower edges of the legs are pressed into engagement with the bottom, and these parts are securely welded together by such electric or autogenous welding. After such welding, the insert will be pressed down to position, substantially as shown in Fig. 5, and will be rigidly secured to the plug. The insert I0 is cut away or provided with a transverse opening I4, thus forming a channel or recess for receiving any suitable tool or implement which may be inserted therein and used for turning the plug. In order that such a tool or bar may lie substantially parallel to the top of the plug, the insert preferably extends a short distance above the top thereof as shown. The insert itself also provides an additional means adapted to be engaged by means of a monkey wrench or machinists wrench, screwdriver or pliers engaging with the sides thereof. In other words, my improved plug is so constructed that it is not essential to have a special plug wrench for opening or closing the container as this may be done by a bar of steel or wood or other various devices. This plug may be made in any desired size and may be used in the usual manner for closing holes or openings as will be readily understood by those familiar with such devices.

While I have shown a preferred form of my invention, various modifications may be made in the shape of the same and in the arrangement of the parts without departing from the scope of the invention, and therefore I do not Wish to be limited to the particular construction shown and described except as set forth in the following claim in which I claim:

A plug for barrels or the like, comprising an annular metallic cup shaped body threaded on its exterior side walls, a channel shaped insert open at both ends formed of metal disposed in inverted position within said cup and with its leg ends anchored securely to the bottom of said cup, the length of said legs being such as to dispose the entire web portion of said Yinsert and the upper portions of said legs beyond the open end of said body, said web and the upper portions of said legs being provided with a transverse channel, and said insert being of such length and breadth as to be spaced at its sides and ends from the side walls of said body.

STEVENS A. BENNETT.

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

UNITED STATES PATENTS Number Name Date 1,915,254 Rieke June 20, 1933 2,040,088 Jesevich May 12, 1936 2,248,417 Shepherd July 8, 1941 2,275,067 Rheem et al Mar. 3, 1942 2,291,706 Frease Aug. 4, 1942 2,337,622 Robinson Dec. 28, 1943 2,411,149 Dodson Nov. 19, 1946 FOREIGN PATENTS Number VCountry Date 239,814 Great Britain Sept. 17, 1925 425,816 Great Britain Mar. 21, 1935

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