US22351A

US22351A - Improvement in preserve-cans

Info

Publication number: US22351A
Authority: US
Publication date: 1858-12-21
Anticipated expiration: 1875-12-21

Description

P. H. COTTON.

Fruit Can.

Patented Dec. 21. 1858.

HUI

Ill

C0 N.Y. (OSBORNE? PROCES UNTTED STATES PATENT OFFICE.

P. H. COTTON, OF DEMOPOLIS, ALABAMA.

IMPROVEMENT IN PRESERVE-CANS.

Specification forming part of Letters Patent No. 22,35 l, dated December 21, 1858.

To aZZ whom it may concern.-

Be it known that I, P. H. COTTON, of Demopolis, in the county of Marengo and State of Alabama, have invented certain new and useful Improvements in Preserve-Cans; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a central section of a can with my improvement. Fig. 2 is a top view of the same. 7

Similar letters of reference indicate corresponding parts in the two figures.

This invention relates to that kind of preserve-can whose cover consists simply of a cap fitting over the mouth of the can, and is sealed by wax or composition poured into a channel surrounding the neck of the can and rim of the cover.

It consists in the application of fastenings of the kind and in the manner hereinafter speciiied to confine the cover on the can against the pressure of steam that is generated to expel the air, until condensation takes place and the sealing composition becomes sufficiently hard to retain the cover in its place.

It also consists in forming a recess in the lower part of the neck of the can and making the rim of the cap to extend down some distance over said recess for the purpose of pre venting the sealing composition becoming detached from the sides of the channel, and the cap being thereby unsealed.

To enable others to make and use my invention, I will describe its construction and operation.

A is the body of the can, having the bottom.

of its neck a connected with the sides by a plate, 1), whose form is that of an inverted irustum of a cone, which plate combines with the neck a to form the channel 0 to receive the sealing-cement.

e is the recess in the lower part of the neck.

B is the cover, fitting snugly over the neck, and having its rim (Z deep enough to lap over a portion of the recess 6, as shown in Fig. 1.

h t g h i g are the fastenings for the cover, consisting of pieces of wire bent to the form of a right angle or letter L, and having their stems fitted to turn in tubes or eyes ff, secured at equal distances apart to the upper part of the exterior of the body of the can, and having stops formed at the bottom of the stems h h by turning up or upsetting them, as shown atggin Fig. 1, to prevent them drawing out of the eyes. The stems hit of the i'astenings are of such length that when drawn upward in the eyes ff as high as permitted by the stops 9 9 their heads t twill fit closely to the top of the cover when the latter is in its place. There may be any number of these fastenings, but three are sufficient for all purposes.

Before putting the cover on the can the heads 01 i of the fastenings must be turned aside in the manner shown in Fig. 2 in red outline. After the can has been filled, and while its contents are at a temperature not less than 212, the cover is put on and the fastenings turned to bring their heads over the top of it, in which condition they are shown in black in Fig. l. The melted wax or sealing composition is then poured into the channel 0, and by the time it is set a vacuum will 'have been formed in the upper part ofthe cap, which renders the'fastenings no longer necessary to keep the cap on. The fastenings, however, perform a very important duty before the setting of the wax, in preventing any disturbance of the cap. When the melted wax or sealing composition is poured into the channel 0, some of it runs under the bottom edge of the rim d, and this, when the composition is set, secures the whole body of it and prevents its becoming detached from the sides of the channel.

WVhat I claim as my invention, and desire to secure by Letters Patent, is-

In combination with the channel 0, outside the neck of the can, the employment of a re- I cess, c, in the neck, and the extension of the rim of the cap over such recess, substantially as and for the purpose specified.

1?. H. COTTON,

W'itnesses:

J. H. Errns, B. O. GAY.