US673416A - Can-closure. - Google Patents

Description

No. 673,416. Patented May 7, |90I. T. c. BouTH. `CAN CLOSUBE.

(Application. Bled Aug. 2, 1900.)

(No Model.)

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THOMAS CHARLTON BOOTH, OF NEW BRUNSWICK, NEW JERSEY.

CAN-CLOSURE.

SPECIFICATION forming part` 0f `llietters Patent NO. 673,416, dated May 7, 190,1.

Application filed August 2.1900. .Serial No. 25,679- (No model- To all whom, it may concern:

Be it known that I, THOMAS CHARLTON BOOTH, a citizen of the United States, residing at New Brunswick, in the county of MiddleseX and State of New Jersey, have invented a new and useful Can-Closure, of which the following is a specification.

This invention relates to closures for cans or receptacles adapted to contain powdered materials; and the object of the same is to provide simple and effective means for temporarily covering a punctnred sifting-top in such manner that the jarring, jolting, or vibration will not cause an accidental release of the covering before it has been regularly loosened, and thereby avoid loss of the contained material during shipment or transportation and also exclude the air from the receptacle until it is desired to use the contents of the same.

The invention consists in the construction and arrangement of the several parts, which will be more fully hereinafter described and claimed.

In the drawings, Figure l is a perspective view of a can or receptacle embodying the features of the invention. Fig. 2 is a transverse vertical section of the top or cap for the can or cover and particularly embodying the features of the invention and showing the structure completed. Fig. 3 is a similar view of the top or cap as it appears before the temporary covering is secured and also showing the die in section for upsetting a portion of the device. Fig. -l is a similar view of the top or cap, showing the structure partially completed.

Similar numerals of reference are employed to indicate corresponding parts in the several views.

The numeral l designates a can or receptacle body of any suitable form and dimension and having a top or cap 2, comprising an upper fiat portion 3, primarily provided with an upstruck circular rib 4 of angular form and including an inner vertical wall 5, inclosing a cover-seat, as clearly shown by Fig. 3. The base-web 6 of the said seat is formed with a plurality of apertures or punctures 7 for sifting or sprinkling purposes, and when the can or receptacle is prepared for the market a paper or analogous covering 8 of suitable thickness and circular form is snugly pressed into or disposed in the seat over the said apertures or punctures.` The top or cover is then placed in operative relation to a die 9, having a circular die-groove l0 of the form shown by Fig. 3 and subjected to the pressure of the said die to inwardly upset the rib et over the peripheral edge of the covering 8, and by such die-pressi] re the rib is "first turned in, as

shown by Fig. 4;, and inally completed, as shown by Fig. 2, to make a smooth bead-like finish and firmly impinge on the edgeof the covering 8. It will be observed that in the finished article the covering is engaged for a distance inwardly from the edge sufficient to prevent it from being pulled loose under ordinary conditions and compelling the user to release the cover by a precise method and in accordance with printed or other instructions that will be preferably imprinted on the upper surface of the cover itself and which will be to the effect that a knife must be used to sever the covering close to the bead-like rib in order to expose and clear the openings or apertures in the base of the seat. In pursuing this operation the inner portion of the said bead-like rib will form a combined guard and guide for the knife or other cutting implement, and the portion of the base of the seat directly below the line of cut of the covering will be free of apertures and form an effective auxiliary in arriving at the result sought. It will also be seen that the top or cover and the rib are of integral construction or made from one piece of material and, with the covering 8, the entire device comprises but two members or parts. This is a matter of material importance in reducing the cost of manufacture as well as increasing the efficiency of the structure by avoiding the employment of parts separately attached and the disadvantage of loosening of the same and consequent leakage and loss of the contents of the can or receptacle. Though the simplest and preferred form of the improved device has been shown and described, it is obvious that changes in the form, proportions, size, and minor details may be resorted to Without departing from the principle of the invention.

Having thus described the invention, what is claimed as new is- 1. A closure for a Vcan or receptacle having IOO and a covering primarily held closely over the said seat by upsetting the rib inwardly over the peripheral edge thereofa the inner upset portion of the rib forming a guide for the applieation and use of a cutting implement for severing the covering and removing the latter to expose the seat and also forming the exclusive outer sheathing for the seat.

In testimony that I claim the foregoing as my own I have hereto axed my signature in l the presence of two Witnesses.

THOMAS CHARLTON BOOTHA Witnesses FREDERICK WEIGEL, ROBERT ADRAIN.

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