US1216771A - Drum-cap. - Google Patents

Description

L. M. BOOTH.

DRUM CAP.

APPLICATION FILED MAR. 1. I916.

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LEV/5 m citizen of the United LEVIS M. BOOTH, 0F PLAINFIELD, NEW JERSEY.

DRUM-car.

Specification of Letters Patent.

Patented Feb. 20, 1917.

Application filed March 7, 1916. Serial No. 82,726.

To all whom it may concern:

Be it known that I, LEVIS M. BOOTH, a States, and a resident of Plainfield, in the county of Union and State of New Jersey, have invented new and useful Improvements in Drum-Caps, of which the following is a specification.

This invention relates to the general subject of metallic shipping and storing vessels or receptacles, and has particular reference to a novel sealing plug or cap therefor;

Primarily the nvention has in view the provisionoa novel two-part cap that is of special utility in connection with sheet metal dru'ms having a filling and discharge opening cut out of one wall thereof. That is to say, the cap contemplated by the present invention is especially adapted to rig idly clamp orgrip the edges of the wall of thevessel or drum surrounding the opening to thereby provide a tight and effective seal.

Another object of the invention is to provide a sealing device whose parts are readily separable to have access to the contents of the vessel, and which may be secured together with facility when desired.

With the above and other objects in vie\ which will more readily appear as the na ture of-the invention is better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated and claimed.

In the drawings- Figure 1 is a sectional view showing the application of the invention.

Fig. 2 is an enlarged cross sectional view of the assembled cap, showing means for holding the inner member in position while the outer member is 'beingapplied.

Fig. 3 is a top plan view of the assembled cap.

Fig. 4 is a top plan view of the lower member or anchor plate,

Similar reference characters designate corresponding parts throughout the several figures of the drawings.

In carrying out the present invention, it is proposed to provide a cap or sealing plug that will grip the inner and outer surfaces of the receptacle, adjacent discharge opening, in a tight and positive manner so that an effective seal is provided.

To this end the invention includes an inner anchor plate or member 1, and a separable outer plate or cover 2.

In a cap or closure device of this characthe filling and ter,it is specially desirable that the same be as nearly flush with the top of the receptacle as possible. Accordingly, to provide for this the body of the. anchor member 1 is preferably hollowed or dished, and formed,

at its periphery with an annular ofiset clamping flange 3, while the central portion of the same carries a threaded bolt 4 preferably disposed at right angles to the horizontal plane of the body. The bolt 4 may be integral with the body ,1 as shown in Fig. 1, or the bolt 4 maybe placed in the mold and the body 1 cast around it, or the body 1' may be tapped and the bolt 4 'inserted therein. In order to obtain the necessary clamping space at the edge of the receptacle 'wall surrounding the opening, the anchor plate 1 must necessarily be larger than the opening. Therefore, in order toiinsert the same into the interior of the receptacle so that the top .of the flange 3 will engage the inner face of the receptacle wall, the said dished body of the anchor member is provided with a radial-slot 5, which is narrow near the periphery and wider toward the center of the plate. This permits the 'same to be inserted edgewise intothe receptacle opening with the smallest possible gap in the flange 3, when the opening is provided with a downwardly turned lip or flange, and

it may then be righted or turned into a horizontal plane so that the bolt element 4 will assume a vertical position. In other words, in order to place the member 1 into the opening, it is necessary to hold the same edgewise at substantially right angles to the top of the drum or receptacle, with the mouth of the slot 5 in position to straddle the edge of the opening, and then by a'substantially rotaryand lateral movement shift the entire plate so that thebody thereof will advance sufliciently over'the edge of the receptacle at the opening to permit the side thereof opposite the slot to clear the opposite edge of the opening. The anchor plate 1 may then be righted as above indicated, so that it will'rest upon the contents of the vessel, if the same is filled, and if such is the case, the cover member 2 is ready to be placed in position. However, if. the vessel is empty or partially empty, an external support is'necessary for the anchor plate. This will be presently referred to.

The covermember 2,- like the member 1, is

preferably of circular or disk form,'and includes a central depressed body portion 6 for matching with the dished portion of the clamped together, thus member 1 and having therein a centering opening 7 for receiving the bolt 4. The outer edge portion of the cover 2 is preferably fiat as indicated at 8, while the extreme peripheral edge thereof is bent to one side of the fiat portion 8 to form a marginal flange or head 9 for telescopically receiving the annular flange 3 of the anchor member 1. As will be apparent from Fig. 1, this bead 9 constitutes an abutment for the flange 3 against which the edge of the wall of the receptacle adjacent the opening may pressed by said flange where the plates are distorting the metal, and forming a rigid interlock and tight seal. For the purpose of clampingly holding the cover plate or disk 2 on the anchor plate 1, the bolt 4 is provided with a clamping nut 10 which may be readily removed and replaced to either separate the members 1 and 2, or secure the same together.

As has been previously indicated, under ordinary conditions of use, the vessel is filled and theanchor member 1 rests upon the top of the contents thereof. In this way the contents of the can constitute a support, whereby the cover member 2 may be readily secured in position. However, in cases where the contents of the can or receptacle have been partially used, and it is desired to replace the cap, it will be impossible to support the anchor member 1 Without an external support. A simple form of supporting device for accomplishing this purpose is shown in Fig. 2, wherein it will be observed that the end of the bolt 4 is tapped as at 11 to receive the threaded end of a supporting tool 12 having a handle 18. This tool is preferably a piece of wire bent into the shape showmand having a threaded end for detachably engaging with the bolt i, so that after the cover 2 has been secured on the anchor 1 by means of the nut 10, the same may be readily removed. The cover 2 and nut 10 are placed in position for final assemblingon the shank of the tool 12 before the threaded end of the tool is screwed into the end of the bolt 4, and in actual use the shank is made long enough to permit sufiicient space between the cover and anchor members to thus prevent any interference oi the tool or cover with the insertion of the said anchor edgewise into the opening in the receptacle.

Without further description, it is thought that the many features and advantages oi the present invention will be readily apparent, and it will also be understood that minor changes in the form, proportion, and detaiis of construction may he resorted to without departing from the spirit out invention scope of the appended claims.

I claim:

1. A receptacle sealing .cap comprising complemental clamping members, one of said members having an upstanding peripheral clamping bead edge, and the other of said members having a peripheral groove for telescopically receiving said clamping bead edge of the other member.

'2. A receptacle sealing cap complemental clamping members, one of said members having an annular upstanding clamping bead edge and the other of said members having a continuous ofiset clamping edge portion for telescopically receiving the clamping beadflange of the other member, and means for detachably holding said members together.

3. A receptacle sealing cap comprising complemental clamping members each including a body having an ofiset clamping edge, the peripheral clamping edge portion of one member telescopically interlocking with the corresponding edge portion of the other, and means for detachably holding said members together.

4:. A receptacle sealing cap comprisingcomplemental clamping members each 1ncluding a body having a flangedperipheral edge portion, the peripheral edge portion of one member telescopically interlocking with the edge portion of the other, one of sai members having a radially disposed laterally opening clearance slot, and means for detachably holding said members together.

5. A receptacle sealing cap comprising an anchor disk havin a clearance slot, an upstanding annular ange formed at the edge thereof, and a cover projecting bead flange providing a- Joint shoulder for said annular flange on the anchor disk, and means for clamping the disks together.

6. A receptacle sealing cap comprising an anchor disk having a radially disposed clearance slot, an upstanding annular flange at the peripheral edge of said disk, and a threaded clamping bolt carried by the central portion thereof, a cover disk having a peripheral bead fiange'i or telescopically receiving and interlocking with the annular flange on the anchor disk and also having opening for receiving said clamping bolt,-

and a clamping nut on said holt said disks in assembled relation.

Signed New York city, in the county of hl'ew York, and State of New York, this 28th day oi? February, 1916.

LEVllS lt l. BOGTH.

for holding Ill comprising disk having an annular 1 Jr

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