US1083574A - Sheet-metal can. - Google Patents

Description

E. WESTERBECK. SHEET METAL CAN.

APPLICATION FILED APR. 10, 1911.

L83,5'M1 Patented Jan.6,1914.

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FREDERICK WESTERBEGK, OF ST. LOUIS, MISSOURI.

sHfiET METAL CAN.

Specification of Letters Patent.

Patented Jan. 6, 1914.

Application filed April 10, 1911. Serial .No.. 620,134.

To all whom it may concern:

Be it known that I, FREDERICK VVnsrEn- BECK, a citizen of. the United Statesof America, residing at the city of St. Louis, inthe State of Missouri, have invented certain new and useful Improvements in Sheet Metal Cans, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to that type of sheet metal can which is provided with a cover havinga seamless neck formed with a seamless bead onto which the flange of a closure is crimped to close the mouth of the canneck.

My invention consists in a sheet metal can of the type referred to which comprises a cover formed with a seamless neck which is provided at its outer end with an out wardly jutting bead, and also with an inwardly inclined downwardly extending seamless flange, and having combined therewith a closure cap which contacts with said inturned flange of the neck, and which extends downwardly to a point slightly above the bottom of the flange of said neck; the cap being also provided with an outwardly extending annular flangewhich is crimped about and beneath the outwardly jut-ting bead at the outer end of the neck whereby said cap is securely held to the bead and the depressed central portion of the cap re tained in fixed contact with the inwardly indownwardly extending seamless flange of the neck, as hereinafter described and claimed.

In the accompanying drawings: Figure I is a top or plan view of.my sheet metal can cover'and closure. Fig. II is in part an elevation and in part a vertical section of my cover and closure applied to a sheet metal can body. Fig. III is an enlarged section .through the neck of the cover and closure.

A designates the body of a can and B the can cover, the lat-terbeing provided with a seamless neck C. The can cover and its neck are madefrom a single sheet of metal which is drawn into the shape shown by a series of drawing actions similar to those ordinarily carried out in producing sheet metal articles of irregular contour. The can cover is separate from the body A and may be securedtheretoin any suitable manner.

The neck of my canis provided. at its month end with a seamless bead 1, formed by bending the metal in the neck outwardly in a slight curve relative to the plane of the body of the neck and then inwardly over the neck from the jutting portion and downwardly toward the upper-end of the neck and spaced therefrom, with the result of producing an internal seamless flange 2 that is slightly inclined inwardly toward the center of the neck, and the free edge of which is spaced away from the interior face of the neck walk Itwill furthermore be seen that the bead 1 of my cover neck may be produced without any excessive drawing action such as would cause a fracture of the metal. It is also to be emphasized that only slight bending and drawing action of the metal is necessary to produce the straight internal flange 2; hence there is no liability of a fracture in this flange starting from its free end and extending therefrom into the head to render the latter unfit to perform its duty in conjunction with the cap closure.

3 designates the closure cap, which isof the same form as that usually employed on beaded cover necks of the type hereinbefore referred to, and for which no invention per se is herein claimed. The closure cap has a depressed central portion, beneath which the flange .2 extends slightlyso' that the diameter'of the opening at the bottom of the flange is slightly less than the diameter of the bottom of the closure cap, a slightly flaring rim or annular wall 4, and an outer annular flange 5, concentric with the rim 4 and crimped about and beneath the bead 1 of the as an integral portion of the bead becomes wedged between the annular flange and annular wall 4 of the closure cap to effect amost secure joint between the closure cap and the cover, and hence removing all possible opportunity for leakage through such joint. It is therefore readily apparent that the engagement of the edge of the annular flange 5 with the contracted part of the cover at or near the basev of the bead 1 will securely hold the closure cap in position and against 5 displacement.

1 claim:

A sheet metal can comprising a cover formed with a seamless neck provided at its outer end with an outwardly jutting head,

1 and an inturned inwardly inclined downwardly extending seamless flange, and a 010- sure cap contacting with said inturned flange and extending downwardly to a point slightly above the bottom of said flange, said cap being provided with an outwardly ex- 15 tending securing flange crimped about and beneath the outwardly jutting bead at the outer end of the neck.

FREDERICK WESTERBECK. In the presence of A. J. MCCAULEY, E. B. LINN.

It is hereby certified that in Letters Patent No. 1 083,574, granteddanuary 6, 1914, upon the application of Frederick Westerbeck, of St. Louis, Missouri, for an mprovement in Sheet-Metal Cans, an error appears in the printed specification requiring correction as follows: Page 2, line 9, for the word head read bead,- and that the saidLettex's Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Ofice.

Signed and sealed this 10th day of February, A. D, 1914.

[SEAL] J. 'l. NEWTQN,

Acting Commissioner of Patents.

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