US809983A - Can. - Google Patents

Description

PATENTED JAN. 16, 1906. J. F. ROSS.

.GAN.

APPLIQATIONIILED $11M". 2, 1904.

ITED STATES PATENT OFFICE.

JOHN FORSTER ROSS, OF TORONTO, CANADA, ASSIGNOR TO WILLIAM EDXVIN ROSS, PERCY FORSTER ROSS, AND CHARLES FRED VANHORN,

OF TORONTO, CANADA.

CAN.

Specification of Letters Patent.

Patented Jan. 16, 1906.

To (til whom it may concern:

Be it known that I, JOHN FoRsTnR Ross, manufacturer, a subject of the King of Great Britain, residing in the city of Toronto, in the county of York, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Cans, of which the following is a specification.

My invention relates to improvements in cans; and the objects of my invention are, first, to provide the inner surface of the canbody with a flush oint, so that when the lid or cover is placed in position the can will be water-tight; secondly, to construct the canbody so that the lid may only move a certain distance thereinto; thirdly, to construct the can-body free of all inner overhanging flanges, so that the contents thereof may be entirely removed therefrom; fourthly, to construct a tin can of this class of the least number of parts at the minimum cost; fifthly, to provide a lid or cover of particular construction.

The construction of my invention will be hereinafter described.

The can-body may be formed in any suitable manner and the ends secured by means of the outside lock-seam or else the usual overlapped joint. I do not confine myself to any particular bottom for the can.

Figure 1 is a general perspective view of my can and lid for same. Fig. 2 is a vertical central section through Fig. 1. Fig. 3 is a horizontal cross-section through Fig. 1. Fig. 4 is a perspective view of the lid.

In the drawings like characters of reference indicate corresponding parts in each figure. I

The can-body A is cylindrical in cross-section and is provided in any suitable manner with any suitable bottom B. As shown, the upper edge of the canbody is provided with a suitable outward]y-turned beading C. In my preferred form of invention I secure the ends of the blank together by means of the well-known outside lock-seam D.

One great object of my invention is to make the can water-tight, and in order to do this the lid must tightly fit the whole of the inner circumference of the can-body it is in contact with. In order that the joint E may be flush with the inner surface of said canbody, I fill same with any suitable soldering material F and by any suitable means re move the superfluous soldering material.

- G is the cover or lid, provided with a downwardly-extending flange H, which the top I overhangs by means of its flange N. Said flange H is provided with an outwardlyformed flange J, which in turn is provided with a downwardly-turned flange K, which is designed to tightly fit the inner circumference of the can-body it is in contact with, as shown in Fig. 2, so that the can will be water or oil tight. By reason of the flush joint E it will be understood that the flange K will tightly fit the can-body at all points. As will be seen from the drawings, the top or cover G is preferably stamped out of one piece, but may be made up of separate pieces without departing from the spirit of my invention. I provide the can-body A with an inwardly formed shoulder L, so that the flange K will abut thereagainst, and thus limit the inward movement of the cap or cover G. In order to remove the cap or cover C, any suitable instrument is inserted into the an nular space M, between the flange N and the beading C and the cap or cover pried from position.

Although the flange K is made so that the whole of its outside surface will tightly be in contact with the inner surface of the canbody it rests against, it will be understood that the flanges J and H need not necessarily be straight, as shown, as they might be curved, or partly so, thus really destroying their separate identity without departing v from the spirit of my invention.

I need not necessarily remove the superfluous soldering material for the whole length of the seam or joint, as it will be understood that the joint must only be flush with the inner surface of the can-body for the distance that the lower flange K rests in contact therewith in order to make the can water-tight.

I do not confine myself to the construction herein shown and described, as same can be altered in many ways without departing from the spirit of my invention.

WVhat I claim as my invention is- 1. A can-body comprising a blank of sheet metal bent into cylindrical form, the said canbody for a suitable distance from its top downward being enlarged so as to form an inward-projecting annular shoulder, and soldering material filling the joint on the inside of said can-body so that it will be flush with the inner surface thereof, the walls of said can-body, from said shoulder downward being parallel to each other, the walls of said can-body from said shoulder upward being parallel to each other, the upper edge of said can-body being provided with an outwardlyturned beading, and a circular lid or cover comprising the top integrally provided on its edge with an annular flange which overhangs an inwardly-formed portion with which is integrally formed an outwardly-extending flange with which is integrally formed a downwardly-extending flange which tightly fits against the whole of the inner circumference of said can-body it is in contact with above said inwardly projecting annular shoulder so as to make same oil and water tight, the relation of the outside diameter of the top of said lid to the internal diameter of said can-body being such that there is an annular space left between the annular flange of said lid and the upper edge of said can-body.

' 2. A circular lid or cover comprising the top integrally provided on its edge with an annular flange which overhangs an inwardlyformed portion with which is integrally formed an outwardly-extending flange with which is integrally formed a downwardly-extending flange, the diameter of said lid being greatest when measured through said downwardly-extending flange.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' JOHN FORSTER ROSS.

Witnesses:

EGERTON R. CAsE, WILMOT R. BLACKHALL.

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