US106991A - James brittok - Google Patents

Description

JAMES BRITTON,'OF WILLIAMSBURG, NEW YORK, ASSIGNOR'TOHIMSELF AND GARRETT BRoWEs'oFsAMErLAon Letters Patent No. 106,991, dated September 6, 18 70 IMPROVEMENT m' Toss Pom eases-Memes came.

The Sichec'lrrle referred in those Letters Patent and inc-Using part of the same.

, [0 all whom it-may concern Be it known that I, JAMES Bmr'rox, of Williams burg, in the county of Kings and State of New-York,

have invented a new and improved Top for Sheet Metal Cans and Boxes; and I do hereby declare that the following is a, full, cleiir, and exact description thereof, which will enable others skilled intlie 21115170 make undusc the same, reference being ha'dto the accompanying drawing forming part of this -specificatien, in which- 7 t Figure 1 represents a. view of my improved sheetmetal cau top.

14ignre 2.is a. central section of the same.

Similar letters of reference indicate corresponding parts.

This invention has for its object so to construct sheet-metal covers forcaus and boxes that the circular pieces out out in the center of each cover will be supported by the inner part of the cover proper, so that it inay be soldered down and unsolclcred without becoming destroyed during the opening of the can.

The invention consists in so constructing the cover,

by providing itwith a'prpjectiugJwnd or molding,

that it can be stretched inwardly tiiter having been cut in the middle, to carry its inner edge under the central cut out portion.-

A, in the drawing, represents the sheet-metal cover of a can or box, of suitable construction.

The centmi-picce, B, of the cover A is partly cut out, having only the part a, which connects it with the cov'cr.

A projecting headouznolding, b, is formed on the outer purirof the cover,

, This molding is, after the'piece B has been formed, slightly compressed, to extend, the coverinwardly, whereby a rim, c, will be brought under the outer pert of the piece B. for supporting; the same. H The edge of the piece B can now besoldered totbe cover A sudjunsoldered by the application of heat,

without requiring as in the cans and boxosnow in use, the destruction of the coreror central piece.

In ordinary covers the'solder served to unite vthe contiguous edges .ofthe cover sud central pieces,

passing thereby between the two and'nnderneath the cover, so that unsoldering was nearly impossible.

- It is evident that the same result can be reached by forming the head on the center piece B, and stretchingithe same subsequent to cut-ting, so as to make it overlap the inner edge of the cover.

Having thus described my invention, lclaim as new and desire to secure by Letters 1. The cover A, crowded under the central piece B,

for supporting the scmegsubflantinllya herein shown

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