US818092A - Self-heating can. - Google Patents

Description

No 818.092. PATENTED APR. 17, 1906.

G. 3. JEWETT.

SELF HEATING OAN.

APPLICATION FILED JUNE 19, 1905.

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'in use.

GEORGE SI DNEY JEWETT, OF. NORRlDGEWOCK, MAlNE.

Specification of Letters Patent.

Patented. a rn i'r, 19cc,

Application filed June 19,1905. Serial No. 266.666.

To all whom it may concern: I

Be it known that I, GEORGE SIDNEY JEW- ETT, a citizen of the United States, residing at Norridgewock, in the county of Somerset and State of Maine, have invented certain new and useful Im rovements in Self-Heating Cans; and I do ereby declare the following to be a full, clear, and exact description of the invention,.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 the let ters of referencemarked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements in self-heatin cans for canned goods and it more specifica ly relates to improvements in that type of self-heating cans containing canned foods which are required before serving upon the table to be warmed or partially cooked, the can being adapted to heat or cook the contents by the action of contained within a compartment ad' acent to or surrounding the compartment containin the food.

The invention has for its object to improve upon the constructions shown and described in Patents Nos. 720,434 and 720,435, granted to me February 10, 1903, whereby the can will be rendered more eflicient and serviceable To this end and to such others as the in- Y vention may pertain the invention resides in the peculiar details of construction of the can, which will be hereinafter more full" described, shown in the accom an 'ngrawings, and then specifically de ne in the appended claim. 6 The invention is clearly illustrated in the accompanying drawings, which, with the let the can. Fig. 3 is a top plan view of thereceptacle.

Reference now being had to the details of the drawings by letter, A designates the outer can,,which is made of tin or other sheet metal adapted to the purpose, the said outer can being of, considerably greater size, both as to height and diameter, than the size of the ordinary or standard cans which are emplriyed in packing canned foods, such as fruit an vegetables.

B -is a fruit or vegetable canof the stand- I ard form and size and differing only from the cans commonly upon the market 1n that its head end, which is provided with the capcovered filling-aperture C, is provided at its periphery with a slightly upward and outward extending flange portion D for a purpose which will presently appear.

The bottom end of the outer can a is provided with a central circular opening E,the diameter of which opening is slightly less than the diameter ofthe can B, and the eriphery of this central opening E is provi ed with an inwardly-beveled flange e,the angle of inclination of the said flange e correspond ing with the angle of the flange D upon the head end of the fruit-can B.

F is a shallow water pan or tray, which is constructed ofsuitable diameter as to permit it to be closely fitted in the upper end of the outer can A. The upper edge of the said an or tray is bent at right angles to the vertical sides of the tray, thus forming a horizontal flange G, which extends slightly beyond the outer face of the body of the can and serves as a seat forthe cover-plate H, which cover-- plate is designed to be secured to the face of said peripheral flange, as will be understood.

The cover plate H is provided near its outer edge with a circumferential depression or groove H", and within this circumferential groove or surrounded thereby provided, in the face of the plate, a depression I to receive a puncturing-tool J, which is designed to be retained in the depression when not designed for use by a label pasted over the'end of the can.

In assembling the parts of the can and paring the same for use the fruit or vegetable can B is inverted and placed within the can A, and when properly placed the flange periphery D of the head of the can B will en gage the flange e, surrounding the opening in the bottom of the outer can A, the engagement of these flanged surfaces serving to hold. the can B securely against lateral displace ment, as will be readily understood. After the can B has been thus placed in position within the outer can the space surrounding the inner can is filled with unslaked lime or its equivalent material, and the water-trayF,

having first been filled with water, is seated within the upper end of the outer can, the depth of the said tray being such that when it is seated it will bear'clirectly upon the can Bb'eneath it and will serve to hold the said can securely in place. The top plate H of the can'A is then placed in position and ceme'nted or otherwlse suitably secured at its outer edge to the flanged upper edge of the Water-tray.

When it is designed to cook or heat the contents of the can, the puncturing-tool J is removed from its seat by removing the label covering it, and with this tool an opening or several openings, if referred, may be made Within the groove 1-19, the said openings extending through the cover-plate H and also through-the bottom of the water-tray, thus permitting the water contained in thetra to enter the space surrounding the can B W ere it comes into contact with the lime or its puncturing of the bottom of th Water-tray shall be at points directly aboye the space u containing the lime and prevents the liability of puncturing the can B.

Having thus described my invention,.what I claim to be new, and desire to secure by Letters Patent, is- A self-heating can, comprising an cute and inner receptacle With a space intervening between the same, the outer receptacle having a bottom. with an annular groove in the upper surface thereof in which the inner receptacle fits, the ortion of the bottom of the outer reccptac e beyond said annular groove being inclined and bent to form an annular groove, adapted to receive the circumferential wall of the outer casing, a water-tank resting upon the top of said inner receptacle, a flanged top to said water-tank, having an annular groove therein, forming a shoulder and designed to hold said watertank'against the inner wall and flange of the outer receptacle, as shown and described. In testimonywhereof I hereunto aiiix my signature in the presence of two witnesses. GEORGE SIDNEY JEWETT.

Witnesses:

Fonnnsr GooDwIN,

M. L. BOWMAN.

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