US934370A - Containing-can. - Google Patents

Description

G. M. SY MONDS. CONTAINING CAN;

APPLIOATIOK 11.21) 0011, 190a.

934,370. Patented Sept. 14, 1909.

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' content: from being m-uhh'ed "1' CLARENCE M. SYMONDS, 0F

PATENT OFFICE.

SAN ANSELMO, CALIFORNIA.

CON TAINING-CAN To all whom it mag concern:

Be it known that I, CLARENCE M. SrMonns, citizen of the United States, residing at San Anselmo, in the county of Marin and State of California, have invented new and useful Improvements in Containing-Cans, of which the following is a specificationv My invention relates to improvements in containing cans and especially that class which is designed to contain hermetically sealed goods of any description, and which are known as sanitary cans; such cans being sealed without the use of solder, or other substance which may have deleterious effect upon the contained fruit. 7

It consists in a means for closing and hermetically sea ling the can aft r the contents of the can have been proper y put or processed, and in readiness for the sealing.

Referring to the accompanying drawings for a more complete explanation of my invent-ion,I igm'e 1 is a side elevation,

partly in section, of the can and top before assembling. Fig. 2 is an enlarged section of the seamed top and can.

The ordinary method for preparing hermetically sealed goods for the market is to fill the cans, pass them through what is known as the exhaust box, in which they are heated so as to, drive out any air that may hccontained in the cans, then place the tops on the cans and pass them through the.

closing machine. In thus passing the open can through the exhaust box, the contents swell more or less by reason of the heat, and project above the top of the can, so that this projecting portion being above the surface of the liquid with which the can is filled, becomes scalded, which is a serious objection, especially in high grade fruit, and in the forcing of the top or cover on in the closing machine, the fruit is more or less crushed and bruised, and portions get between the flange of the can and the cover, and prevent a perfectly air-1 ight joint being made.

In this invention the cans and covers are made with a. peculiar interlocking flange so that the cover may be snapped on over the flange of the can body, after the can has been filled, and before it goes into the exhaust box, and the cover, while being prevented from coming ml, h-xlvcs space mmllgh to allow the proper exhaust. or discharge of vapor. and at lhesumc time pron-ms the )l'hlfitfitl, am; from gelling between lllt' liaugc ol the can Speeifleativn oil-letters Patent- Patented Sept. 14, 1909. Application filed October ims. Serial No. 455,771.

I and the body. It also avoids the handling l of the cans while they are hot.

I The cans which are formed in large quantities in the can factories and are shipped to various points where they are to be used, ordiuarilv have a substantially radially projecting fiange with which the cover, also z properly flanged, will be double-seamed as it is called, when the two -are put together. These projecting edges of the can are easily damaged in the process of shipment and handling, and when so damaged, there'i's great loss, because the heads will not close properly with them. i

In my invention, the upper edge of the can A is turned over to form a rim. 2, the outer edge of whichis turned downwardly, as shown, and this down-turned edge forms a resistant shapewhich will prevent its being damaged by rough usage.

The cover 3 is formed with an arched, an. uular rim 4 which is turned downwardly, thence bent inwardly and upwardly as shown at 5. This inturned edge 5 is of such diameter that the cover can, by a little pressure, be caused to snap over the outwardly turned edge 2 of the can body, and thus engaged,,it will not be possible to again remo e the cover,'but the engagement is a looseone which allows any steam or vapor from the contents of the can to escape when the can is placed-in the exhaust box after being filled. The contents of the can are also prevented from swelling and risin above the scalding is revented. The contents are also prevented rom extending over the edges of the can as the cover is already in lace, and after the filling'and exhausting ave been completed, the seam is formed by dies which are not here described, instead of usingrollersby which the usual doublescam's of ordinarv cans are formed. The closiine may thus be completed without. any handling of the cans whilehot, as they can be delivered automatically and directly from the exhaustlmx to the closing dies. and all the objectionable l'cnlurvs heretofore lu'cutiomul, are llvuhhul,

The invention may be applied to oval. quare. or irregular mum u well as to round nuns,

Having thus describ d my iuvvulmu, what l claim mm de ire to act-urth la-Hvrs Putant i-l-- 1. in r containing can of the uhvracter deliquid in which it IS containe and thus scribed. an outwardly and downwardly )Yilldl) and upwardly turne'd extension, andiurned annular rim formed around the top said flanges adapied to slip one past the of the can, a (over having a downwardly and other and to snap into engagement when inwardly turned peripheral edge adapted to compressed, to form a hermetically sealed 5 snap into engagement and loosely interlock closing joint. 1 g

with the can flange to retain the cover'in po- In testimony whereof I have hereunto set sition. my hand in presence of two subscribing wit- 2. As an article of manufacture, a can having an ou twardly and downwardly CLARENCE M. SYMONDS.

nessm. 10 turned flange around the top, a cover having I \Vitnesses:

a corresponding flange exterior to the'flange GEO. H. STRONG, ,of the hi1). ;H(l cover flange having an in- CHARLES EDBLMAN.

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