US700577A

US700577A - Solderless side seam for tin cans.

Info

Publication number: US700577A
Application number: US9234002A
Authority: US
Inventors: Walter Thompson
Original assignee: PACKER S SANITARY CAN Co
Current assignee: PACKER'S SANITARY CAN Co; PACKER S SANITARY CAN Co
Priority date: 1902-02-03
Filing date: 1902-02-03
Publication date: 1902-05-20
Anticipated expiration: 1919-05-20

Description

Patented May 20, I902.

W. THOMPSON. SOLDERLESS SIDE SEAM FOR TIN CANS. (Application filed Feb. 8, 1902.)

(No Model.)

WITNESSES i INVENTUR,

THE nonms ravens o0. vnmwnna. wnsnmmom a. c.

.UNITED STATES PATENT OFFICE.-

\VALTER THOMPSON, OF TORONTO, CANADA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE PACKERS SANITARY CAN COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SOLDERLESS SIDE SEA M FOR TIN CANS SPECIFICATION forming part of Letters Patent No. 700,577, dated May 20, 1902. Application filed February 3, 1902. Serial No. 92,340. (No model.)

To all whom, it may concern.-

Be it known that I, WALTER THOMPSON, a subject of the King of England, residing in Toronto, in the Province of Ontario, Canada,

have invented certain new and useful Improvements in Solderless Side Seams for Tin Cans; and Ido hereby declare the following to be a full, clear, and exact description of the invent-ion, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to the construction of tin or other sheet-metal cans; and it has reference particularly to the construction of vessels of this nature having interlocked seams.

2b The principal object of the invention is to provide an inexpensive and simple expedient for strengthening and protecting the seam throughout the length thereof and for rendering it perfectly tight or leak-proof.

2 5 The invention is fully illustrated in the accompanying drawings, wherein-'- Figure 1 is a side view of a-tin can constructed in accordance with the principles of my invention, and Fig. 2 is an enlarged perspective view of a portion of said can.

In carrying out my invention the portion a of the metal of the bodyof the can b immediately contiguous and parallel with the seam c is bent inwardly, forming a relatively sharp angle at d. In the drawings the bend is produced by indenting a narrow strip of the metal immediately adjacentand parallel with the seam; but it is Within the scope of my invention that simply the bend d be produced,

0 in which case, of course, the seam would be disposed in a plane relatively within that of the metal forming the body of the can. The

construction shown, whereby the portion of the metal involved has a V-shaped form in cross-section, is preferable, since thereby a bend at e is produced, as well as the bend cl. By thus shaping the metal immediately contiguous and parallel to the seam considerable strength is imparted to the can longitudinally thereof in the neighborhood of the seam. In other words, the tendency of blows or jars on the can to bend the metal in the portion thereof where bending will do injury to the can-i. a, at the seam by opening it and starting leakage -is prevented,because 5 5' the bends strengthen the metal, and so protect the seam. In imparting to the metal a V-shaped depression it will be found of considerable value to have the shaping-tool take against the adjoining edge portion of the seam, I

and so bend it down, as at f, to form one side of the depression. The bend thus produced in the seam at each side thereof throughout its length will tighten the seam considerably- 6. e., render it the more impervious to leakage. At the same time it will strengthen the seam against transverse bending.

It will be understood that while my invention is shown in the accompanying drawings and is intended principally to be applied 76 to cans having interlocked side seams, such as that illustrated, it is also applicable to soldered seams.

Having thus fully described my invention, what I claim as new, and desire to secure by 7' 5 Letters Patent, is+

1. A sheet-metal vessel provided with a side seam and having contiguous and parallel longitudinal 'ben'ds formed the one in one longitudinal edge portion of the seam of said 80 vessel and the other in the adjacent portion of the body of the'vessel, substantially as described.

2. A sheet-metal vessel provided with a side 'seamand having-the longitudinal edge p01' tion of said side seam and the portion of the metal of the body of the vessel immediately adjacent to and parallel with said edge portion bent inwardly to form a longitudinal depression in said vessel, substantially as deo scribed.

3. Asheet-metal vessel provided with a side seam and having the edge portions of said side seam depressed out of the plane of the adjacent portion of the material forming the body of the vessel, substantially as described.

4. Asheet-metalvessel providedwithaside have hereunto set my hand this 23d day of seam. and having the portion of the metal January, 1902.

thereof which comprises the contiguous portions of the seam and body of the vessel WALTER 'LHOMPSON' 5 pressed inwardly from end to end of said ves- Witnesses:

se1,' substantially as described. s JOHN W. STEWARD, In testimony that I claim the foregoing I ROBERT J. POLLITT.