US568478A - Sealed package - Google Patents

Description

(No Model.)

0. S; FELLOWS. SEALED PACKAGE.

No. 568,478. Patented Sept. 29, 1896.

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NITED STATES ATENT FFICE. I

()LIN S. FELLOWS, OF MIDDLETOIVN, NEIV YORK.

S EALED PACKAG E.

SPECIFICATION forming part of Letters Patent No. 568,478, datedSeptember 29, 1896.

Application filed April 18, 1895. Serial No. 546,267. (No model.)

To (tZZ whom it may concern.-

Be it known that I, OLIN S. FELLOWS, a citizen of the United States, residing-at Middletown, in the county of Orange and State of New York, have invented certain new and useful Improvements in Sealed Packages, of which the following is a specification sufficient to enable others skilled in the art to.

which the invention appertains to make and use the same.

In my concurrent application, Serial No. 527,608, filed November 1, 1894, I describe and claim a special construction of can in which the flange of an end plate fitting inside the can-body constitutes the stripping portion. In said case the flange is soldered directly to the can-body, and the resistance of the solder has to be overcome in stripping off the flange to open the can.

My present invention is an improvementupon the structure disclosed in said prior application, the object being to afford a concave stripping-section unattached to the canbody and free from solder that will yield more readily to the action of the strip-winding key; and hence the invention consists, essentially, in forming one end plate with a flange fitting either inside or outside the canbody by which the end plate is soldered thereto, and also with a concave stripping portion within the line of the can-body, but not directly secured thereto, so that the soldered joint is undisturbed during the operation of winding the stripping portion around the shank of a strip-winding key. I thus supplement the ad vantages of strip-winding from a concave surface by reducing the resistance to be overcome by the strip-winding key to the minimum.

My invention also includes the special form of stripping-tongue hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a sectional elevation of one end of my improved can; Fig. 2, a sectional detail, on an enlarged scale, of the structure shown in Fig. 1; Fig. 3, a section of a portion of the end plate, looking toward the stripping-tongue; Fig. 4, a sect-ion on plane of line 4 4, Fig. 3; Fig. 5, a section upon plane of line 5 5, Fig. 3; Fig. 6, a section upon plane of line 6 6, Fig. 3; Fig. 7, a plan of a portion of the end of the can, showinga section of a strip-winding key applied to the stripping-tongue Fig. 8, a view showing a modified form of stripping-tongue.

concave stripping-section as related to the can-body, end plate, and soldered flange.

The end plate 6 is formed with a flange f, which fits over the end 0 of the can-body O, or inside the same, as in Figs. 13 and 14, and is soldered thereto in the usual way. The end plate e is depressed centrally, more or less, to form the concave stripping zone or section .9, which may be so situated as to fit snugly within the can-bod y, as shown in the first eight figures of the drawings, or may occupy a position within and beyond the canbody, as shown in Figs. 9 to 13, inclusive; and said strip 8 may extend either parallel to the can-body or at an angle thereto, as indicated in the drawings.

By forming a space 19 between the inner edge of the can-body and the inner surface of the stripping-section s I render it impossiblefor the solder to reach and bind the said strip 8, thereby rendering the stripping operationmore free and uniform.

The stripping-tongue t may be secured to the strip 3 in any suitable or convenient manner, and I do not confine the use of my concave strip 8 to the form of tongue 15 and the method of attachment shown, although the latter discloses points of novelty which I desire to cover as a special construction.

The novelty in the construction of the stripping-tongue 15 consists in making its tongue proper, t, wedge-shaped, in placing its shank t inside the strip .9, with the tongue 6 projecting through one slit 71 therein, while its other extremity projects slightly through another slit n in the strip 8, and in perforating the strip 3, adjoining the shank 29, to permit' the entrance of solder between the 0pposed surfaces.

By making the tongue 15 pointed and wed geshaped I facilitate its engagement with the slot or eye in the strip-winding key, while the projection of the other extremity of the shank through the strip 5 renders the connection between the strip 8 and tongue tmore substantial, since it not only admits of soldering at the point 01 but, as will be seen by Figs. 9 to 14, inclusive, show modifications in the form of my independent reference to Fig. 5, affords more or less of a shoulder at that point, which will effectually resist all tendency of the tongue to pull out away from the strip 3 under the strain exerted by the strip-winding key at the beginning of the stripping operation.

Vherer comparatively thin sheet metal is used for the end cap, the angles between the strip 8 and the portions of the end plate on either side maybe relied upon to weaken the metal sufficiently to determine and control the lines of severance; but where the nature of the metal requires it I bind the strip 3 with circuitous incisions it, or other suitable lines of reduced thickness, which the strip 3 will follow as it is wound off the end plate and around the shank of the strip-winding key,

By my invention I obtain an independent concave stripping section free of the canbody and stripping from the end plate itself. The can-body, after the opening operation, is also left of full capacity and with a margin of safety above the contents of the can, as in my concurrent application, Serial No. 527, 008, hereinbefore referred to.

In my concurrent application, Serial No. 546,885, filed April 23, 1895, I describe and claim a sheet-metal can in which the edge of the can-body is bent overto form an inwardlyprojecting flange to which the end plate is soldered, the end plate being formed with a concave stripping-zone below the said joint and with its central portion below the stripping-zone; and I do not seek to cover such special construction herein.

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

A sheet-metal can formed with an end plate having a peripheral flange by which it is soldered to the can-body, said end plate being depressed centrally within the body of the can, and being bent abruptly at an angle to said depressed center, and between it and the peripheral flange by which it is secured to the can-body, to form a concave stripping portion defined and limited by parallel lines of reduced thickness, said stripping portion being provided with a tongue for engagement with a strip-winding key for the purpose and substantially in the manner set forth.

OLIN S. FELLOWS. lVitnesses:

D. XV. GARDNER, GEORGE WILLIAM MIA'r'r.

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