US471736A - William pratt - Google Patents

Description

(No ModelL) W. PRATT.

TIN GAN.

No. 471,736. I Patented Mar. 29', 1892.

UNITED STATES PATbLTQrLInm l Y/VILLIAM PRATT, OF MONTREAL, CANADA,

TIN CAN.

SPECIFICATION forming part of Letters Patent No. 471,736, dated March 29, 189,2. Application filed December 2, 1891. Serial No. 413.764:- (No model.)

.To @ZZ whom t may concern,.-

Beit known that I, WILLIAM PRATT, of' the city of Montreal, in the district of Montreal and Province of Quebec, Canada, have invented certain new and useful Improvements in Tin Cans or Receptacles; and I do hereby declare that the following is a full, clear, and exact description of the same.

-This invention relates to cans or receptacles constructed of tin or like material and intended to be sealed after illing and opened and kept in use for some time, the original cover being retained for further use. Heretofore the constructions for such purpose have been such as to render it somewhat difficult to set the cover in place both at the time when the cover is first secured to the body and after it. has been removed, considerable difficulty being also experienced in removing the cover after its insertion subsequently to the iirst opening of the can.

My invention consists in making the cover with a peripheral rim shaped in part to Iit within the body and to rest upon the edge of same, the part fitting inside being soldered to the body and forming a beading of special cross-section in such body just below the portion to which thecover is soldered, which portion, the same as in other well-known forms, has an ext-ended free overlapping end, whereby upon taking hold of such free end and forcibly pulling upon same the portion of the body above the beading 'will be detached along the line of the beading from the main section of the body and from the cover-rim to which it was soldered, and the shape of the beading and the rim of the cover make it possible to reuse the cover without any degree of trouble. For full comprehension, however, of the invention, reference must be had to the annexed drawings, forming part of this specification, in which- Figure l is a plan View of a blank, showing the line of the beading and the preferable manner of securing the extended free overlapping end for detaching purposes. Fig. 2 is an enlarged transverse vertical section of such blank. Fig. 3 is a perspective elevation, partly broken away, of the can as originally closed; Fig. 4, asimilar view showing the connecting portion of the body partly detached,

and Fig. 5 a similar view showing the can closed by-the original cover after having been opened by removing the connecting-strip.

Like symbols indicate corresponding parts.

A is the cover of the can, having an upwardly-projecting peripheral rim, presenting a vertical portion a parallel to the sides of the` can and a horizontal flange a to rest on the top edge of the body.

B is the body, formed from a blank, such as shown in Fig. 1, having a'beadingbof the form or cross-section shown in Fig. 2 pressed' in it parallel with its top edge and at such a distance below the same as to mark oft" the upper portion B of the can (which portion is the connecting-strip) at a depth about correspending to that ot the vertical portion a, of the cover-rim. This beading b is of an obtuse or wide V- shaped form or cross-section in the main, but has a more acute depression or extension b at its apex, in the forming of which the metal is stretched to some extent without severance or cutting in any degree whatever, this stretching being for the purpose of rendering the connecting-strip B more readily detachable along the line of the apex of the beading.l It will also be noticed that the wide-V- shaped form of the bead b serves to strengthen the cans both 'before and after the severance of the connecting-strip.

C is an extension at the end of the connecting-strip B', which when the ends oi' the body are brought together, overlapped (with the end having such extension outermost) and soldered, remains free to project, so that by drawing upon it in the .usual way by the use of the flat slotted keyD (indicated in Figs. 3 and 4t) such connecting-strip is readily removed. When this is accomplished, a clean smooth upper edge, slightly flared, is left upon the body of the can, and the cover is equally free from any abrasione or unevenness that might interfere with its easy insertion into place and the attainment of a perfectly tight t between it and the body, and it will readily be seen that the horizontal ange a makes it very easy to remove the cover after it has been inserted subsequently to the opening of the can. I might also point out that in manufacturing the cans the cover and body can be more readily fitted together, owin g to the peripheral IOO rim of the cover being devoid of plain edges for insertion, as in former constructions.

What I claim is as follows:

l. A tin eau or receptacle the o over of which is formed with a peripheralrim shaped in part to fit Within the body and to rest upon the edge of same, and the body having an'integral detachable eonneetingrstrip, to which the inserted portion of such cover is soldered, and means for detaehing said strip, as set forth.

2. A tin can or receptacle the cover of which is formed with an upwardly-projecting peripheral rim shaped in part to t Within the body and to rest upon the edge of same, the body g having an integral detachable connecting-stripto which theinserted portion of such cove!l is soldered, and said strip having an extended free end to furnisha holdfast for its removal.

3; Atin can or receptacle the cover of which is formedwith a peripheralv rim shaped in provided by an outwardly-pressed V-shaped beading or depression in such body near its upper edge, adapted to be severed at its apex to allow the removal of said strip and present an outwardly-Haring edge for the easy reinsertion of said cover, as set forth.

4. A tin can or receptacle having upon its perimeter a beading the cross-section of which isof an obtuse or Wide V-shaped form in the main with an extended aoute apex, for the purposes set forth.

Montreal, 24th day of November, 1891'.

WlLLIAM PRATT.

Witnesses:

FRED. J. SEARS, WILL. P. MCFEAT.

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