US504547A

US504547A - William c

Info

Publication number: US504547A
Authority: US
Publication date: 1893-09-05
Anticipated expiration: 1910-09-05

Description

(No Model.)

W. 0 WINPIELD. BOTTOM FUR CANS.

No. 504,547. Patented Sept. 5, 1893.

H a 62mm F I'NVE /V'TQR. -CLLI Q5 WL' Z 21 61751 CI W151 fiela 67. 6

- ATTO N Y.

Ur-JTTED STATES PATENT FFICE.

W'ILLIAM O. lVlNFlELD, OF WARREN, OHIO, ASSIGNOR TO THE WINFIELD MANUFACTURING COMPANY, OF SAME PLACE.

BOTTOM FOR CANS.

SPECIFICATION forming part of Letters Patent No. 504,547, dated September 5, 1893.

Application filed March 16, 1893 Serial No. 466,280. (No model.)

To all wit/0722 it may concern:

Be it known that 1, WILLIAM C. WINFIELD, a citizen of the United States, residing at Warren, in the county of Trumbull and State of Ohio, have invented certain new and useful Improvements in Bottoms for Cans; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled. in the art to which it appertains to make and use the same.

My invention relates to improvements in bottoms for cans and the invention consists in a can bottom constructed substantially as shown and described and particularly pointed out in the claims.

In the accompanying drawings, Figure l is a vertical central section of the lower portion of a can with a bottom made according to my invention. Fig. 2 is an edge view of the bottom after it is struck up and preparatory to uniting it with the can. Fig. 3 is a sectional view, enlarged, of parts of bottom and body united, and Fig. at is a detail view of the parts showing how they appear as united.

The bottom A of the can, is struck up from asheet of tin or other suitable metal into the form seen in Fig. 2. In this form it has a flange at extending entirely around its edge, and within the flange is the struck up inside portion a, which, in a full sized can of about a foot in diameter, stands half an inch above the flange a. Around the edge of this inner bottom portion a the said bottom is formed with an edge having an inclined portion a and a vertical edge (L3, which latter extends down to the base flange afrom the incline a The body B of the can is constructed to fit snugly about the vertical wall a and the respective edges of the body and bottom are made to overlap and strengthen one another as seen in Figs. 1, 3 and 4, or substantially as shown. Now, it will be noticed that the point of engagement ortouch all around the bottom A with the body B is simply upon the vertical part or face a of the bottom edge, and that the inclined portion C62 of the said edge runs inwardly at an angle of about forty-five degrees away from a and the body B.

Heretofore in the construction of oil cans, milk cans and the like when abottom was set into the can, the entire depth of the edge from the surface a to the flange a had a continuous straight side or wall the full depth of the struck up portion,just as if the inclined portion a here were omitted and the straight portion a were extended up to the top of the bottom a. Now, in order that bottoms set into cans may be made proof against leakage, it is necessary that they should be soldered at the point of union, and, under the old construction as in. this case, the solder was applied about the point of union between the bottom and body on the inside of the can. But, of course, the two parts were made to fit snugly together, and the solder could not penetrate more than a short distance between said parts before it would harden, and it never reached down to the lower edge of the body except possibly in spots here and there where the joint was not especially close. It followed that under the rough usage to which cans are subjected the parts would become separated by breaking or cracking of the solder and a leak would be sprung through which oil or other liquid would escape. Indeed, it was diflicult to make a can in the old way which would not spring a leak very easily. My invention, therefore, is designed to overcome this objection and does overcome it by the construction here shown.

It will be noticed that the depth from the upper edge of the vertical face (t to the flange a is comparatively slight and the beveled or inclined portion 0, forms a sort of trough or channel between the bottom and the side of the can which runs down into the point of union. Hence, when the solder is applied to this joint with its low shoulder C0311) penetrates the full depth of the joint and runs down. to the bottom a and into the seam a around the outside of the can, and makes a perfect union between the parts which withstand handling. and usage. This may be reinforced by the deposit of solder sufiicient to partially fill the channel above the point of union in the neck of the channel where the inclined portion C62 meets the side of the can.

I have shown here one way of uniting the edges of the body and bottom, but they may be otherwise united and not affect the nature or character of my invention, the invention being more especially in the peculiar construction of the bottom about the inside of the can, and substantially as shown and described.

Having thus described myinvention, what I claim is 1. The can body having straight sides and the bottom struck up to fit within the body and having a part of its edge inclined away from the body and a part below said inclined part bent downward parallel with and bearing against the inside of the body, substantially as set forth. 2. In cans, a body part, and a bottom havlng an outer flange overlapping the edge of the body on the outside of the can and a struck up interior having the lower portion of its edge bent vertically downward and bearing against the inside of said body and its upper portion inclining away from the body, substantially as set forth.

3. In cans, the body B, the struck up bottom a' having about its edge the inclined portion a and the downward vertical portion a below the incline a and the edges of the body and the bottom interloeked on the outside of the can, substantially as set forth.

4. The can body B and the bottom A struckup with the surface CL2-- inclined away from the body, the downwardly extending rim portion a parallel with the side 13 of the body and lying flatly against the same, and the flange on the bottom outside of the rim a formed with two bends parallel with rim a and outside thereof and the lower edge of the body bent outwardly and upwardly into hook shape and engaging the inner of said bends, substantially as set forth.

lVitness my hand to the foregoing specification this 27th day of February, 1893.

XVILLIAM C. VINFIELD. Witnesses:

M. J. SLOAN, JAooB H. EWALT.