US508554A - Sheet-metal can - Google Patents

Description

(No Model.) F. H, PALMER. SHEET METAL CAN.

No. 508,554. Patented Nov. 14, 1893.

II III 77 3 0" f 'w W/TNESSES LL- INVENTOH UNITED STATES PATENT OFFICE.

FRANK H. PALMER, OF BROOKLYN, NEW YORK.

SH E ET-M ETAL CAN SPECIFICATION forming part of Letters Patent No. 508,554, dated November 14, 1893. Application filed April 29, 1892. Renewed April 17', 1893. Serial Ila-470.761. (No model.)

To all whom it may concern.-

Be it known that I, FRANK H. PALMER, of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Sheet-Metal Can, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved sheet metal can, which is simple and durable in construction, and formed with a flange on the body for conveniently securing or looking the cover to the can body.

The invention consists of certain parts and details and combinations of the same, as will be fully described hereinafter and then pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part of this specification,

V in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional side elevation of the improvement; and Figs. 2, 3 and 4 are sectional side elevations of modified forms of the improvement.

In sheet metal cans as heretofore constructed provided with a cover supporting a spring bail engaging, with its ends, an annular flange on the can body to lock the cover in place, as is shown in my Patent No. 464L385, granted to me December 1, 1891, the flangewas formed with the can body from a blank made of a single piece of sheet metal. In practice I have found that it is desirable to form the flange and body from separate pieces of metal, as the flange can be more conveniently and securely soldered at its joints.

To obviate any difficulty and to make a strong and secure can, I form an ordinary sheet metal can body A, from a single blank, and solder the overlapping sides in the usual way, and separately form the annular flange B, from a single piece of sheet metal, either by spinning or striking it up by means of dies, but so as to avoid a soldered joint. The flange B is then attached to the end of the already formed can body by soldering or other means.

As shown in Fig. 1, the annular flange B is in the shape of the frustum of a cone, and

the upper end is bent inward, as at O, and in thus forms a doubled up flange for'engagement with the ends of the spring bail E, held on the cover F, adapted to be seated on the outside of the flange B. The solder is preferably applied on the joint between the can body A and the lower edge of the flange 0, previous to applying the cover, so as to securely fasten the annular flangeB to thecan body.

As is shown in Fig. 2 the upper end of the can body rests against the top flange C, but does not pass between the latter and the flange B. In this case the solder is preferably applied on the lower end of the doubled up flange B on the outside of the can body.

As is shown in Fig. 3, the upper end of the can body A passes between the top flange C and the flange B, while the lower flange D is doubled up again so as to have three thicknesses of sheet metal at the lower end of the flange B to form a heavy and strong flange for engagement with the ends of the spring bail.

As shown in Fig. 4, the lower flange D is formed with a downwardly extending flange G, between which and the flange D is passed the upper end of the can body A, the latter being formed with an offset H, so as to bring the interior surface of the can body in line with the inner surface of the flange G.

I do not limit myself to the especial construction and forms given to the various flanges shown and described, as the same may be varied to accomplish the same result. A can body formed in this manner is greatly strengthened at its upper end engaged by the cover and by the ends of the spring bail, and at the same time separate soldering of the overlapping sides of the flange to form ajoint as above described, is avoided.

Having thus described my invention, I claim as new and desire to secure by Letters Patent A sheet metal can comprising a cover, a lower doubled end formingaseat for the lugs 10 spring bail held at its middle on the said of the bail to permit the latter to draw the coverandhavingdownwardly-extending arms cover onto the flange and lock the cover in and lugs, and an annular cone shaped flange place thereon, substantially as shown and de- 5 spun or struck up from a single piece of sheet scribed.

metal and fastened to the openend of the FRANK II. PALMER. can body, the said flange forming a seat for Vitnesses: the cover and having its upper and lower ends THEO. G. HOSTER,

doubled for connection with the can body, the O. SEDGWICK.

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