US497976A - Top for sheet-metal cans - Google Patents

Description

(No Model.) 7

W. L. EISENGART. TOP FOR SHEET METAL CANS.

Patented May 23, 1893.

UNITED STATES PATENT OFFICE.

WILLIAM L. EISENGART, OF CHICAGO, ILLINOIS, ASSIGNOR OF TWO-FIFTl-IS TO ROBERTSON J. FISHER, OF FORT WAYNE, INDIANA.

SPECIFICATION forming part of Letters Patent No. 497,976, dated May 23, 1893.

Application filed August 23. 1892- Serial No. 443,903. (No model.)

To all whom it may concern: from the closure B, and are thus integral Re it known that I, WILLIAM LEISENGART, therewith. a citlzen of the United States, residing at Chi- E designates the cap,formed of sheet metal cago, in the county of Cook and State of Illiand circularin shape. This cap is provided 5. 5 nois, have invented certain new and useful with an annular, screw-threaded flange, F, of Improvements in Tops for Sheet-Metal Cans; less diameter than said cap and depending and I do hereby declare that the following is therefrom. By this arrangement of the flange a full, clear, and exact description of the in- F, a flange, G, is formed at the periphery of Vention, which will enable others skilled in the cap which, when the cap is applied to the 6 3 IO the art to which it appertains to make and can, is seated in the seat D with the upper use the same. surface of the cap flush with the correspond- This invention relates to improvements in ing surface of the closure B. At the free or sheet metal cans or vessels, and it has for its lower end of the flange F is formed an inobject to provide a can or vessel ofthis charturned annular flange H, which is approxi- 65 acter adapted for repeated usage, and which mately U-shaped in cross-section, the flanges will possess advantages in point of inexpen- F, G and H being integral parts of the cap. siveness and durability in construction, and For the purpose of attaching or detaching general efficiency. the cap, the same is provided at its top with In the drawings-Figure 1 is a perspective a diametrical groove or depression, I, struck 70 view of a can embodying my invention, the therein, which is adapted to be engaged by a cap being removed. Fig. 2 is a vertical censcrew-driver or similar tool and turned theretral sectional view thereof with the cap apby. In practice, a gasket, J, is interposed beplied. Fig. 3 is a top or plan view of the can. tween the cap and the can, said gasket rest- Fig. 4 is a bottom or inverted plan view of the ing upon the flange C, and against which the 75 2 5 cap. Fig. 5 is a detail sectional view. flange H is adapted to be bound to render the Corresponding parts in the figures are decan air-tight. noted by the same letters of reference. It will be noted that the closure or top B is Referring to the drawings, A designates a pressed or molded into shape from a single sheet metal can or vessel, which may be of piece of tin or corresponding sheet metal, with 8o any suitable or preferred construction and is all its parts integral, and that the cap E is provided at its upper end with a permanent likewise pressed or molded from a single closure B. The latter is also constructed of blank or piece of tin or corresponding sheet sheet metal and formed at its edge with an metal with all its componentparts or elements annular, inverted V-shaped flange, b, which integral, and that the groove or depression in 8 5 3 5 receives the upper edge of the can body and the cap is simply struck therein. This is the is crimped thereon. The flange 1) projects construction I prefer to employ in the practiabove the closure B, whereby the face of the cal manufacture of this improved can-top, latter is located in a plane below the extreme though it is obvious that under some condiupper edge of the completed can. The clostions or circumstances some of the parts may o ure B is also provided, preferably at its con be formed in separate pieces.

ter, with a circular opening, a, which is sur- 1 have also herein shown the improved canrounded by a downwardly-projecting, screw top constituting my presentinvention applied threaded flange, C. At the inner termination to a pressed seamless can body, but it will be of the flange C is an auxiliary flange C proobvious that it is adapted for use upon any 5 jecting inwardly therefrom. The flange C is general form or construction of can body.

approximately U-shaped in cross-section,thus This pressed seamless body does not, thereforming an annular groove, 0. Adjacent to fore, form an essential element of the inventhe flange C, the closure B is provided with tion herein set forth, the same constituting an annular depression forming a seat, D, the subject matter for separate application for 5c purpose for which will hereinafter appear. patent filed August23,1892,SerialNoA43,904.

In practice, the flanges C and C are struck I claim as my invention- 1. As an improved article of manufacture, a can or vessel proper; a sheet-metal closure secured to the top thereof and provided with 7 an opening, adependingscrew-threaded flange surrounding said opening, a depression or seat surrounding the flange, and with an in- Wardly-proj ectin g, auxiliary flange formed at the lower, free edge of said flange, said flange being integral with the closure; and a cap provided with a depending screw-threaded flange of less diameter than the cap and forming an outwardly-projecting flange atthe periphery of the latter adapted when the cap is applied to be seated in said depression or fat};l substantially asand for the purpose set ort l 2. As an improved article of manufacture, a can or vessel'proper; a sheet-metal closure secured to the top thereof and provided with an opening, a depending, screw threaded flange surrounding said opening and integral with the closure, and with an auxiliary inwardly-projecting flange formed at the lower free edge of said flange, said auxiliary flange being approximately U-shaped in cross-section; and a cap provided with a depending, screw-threaded flange integral therewith, an inwardlyprojecting flange formed at the lower, free edge of said flange and approximately U-shaped in cross-section, and witha diametrical groove or depression; substantially as and for the purpose set forth.

3. The herein described improved top or cover for sheet metal cans or vessels, comprising the top or closure B having the opening a, the annular seat D and the flanges O and C; and the cap E having the flange G and the flanges F and H and provided with the central groove or depression I; substantially as and for the purpose set forth.

4. As an improved article of manufacture, a top or cover for sheet metal cans or other vessels, comprising the top or closure B formed of a single piece of sheet metal and comprising the flange b, the seat D, and the flanges O and O; and the cap E formed of a single piece of sheet metal and comprising the flange G, and the flanges F and H and the groove or depression I; substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM L. EISENGART.

Witnesses: or

SAMUEL H. PULVER, MORRIS POTNER.

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