US311777A - Means for attaching tops to vessels - Google Patents

Description

i No ModeL) 7 1). W. NORRIS.

MEANS FOR ATTAGHING TOPS TO VESSELS.

No. 311,777. Patented Feb. 3,1885.

WITNESSES INVENTOH km-46,4 wow/4 V AIfurneyJ UNlTED fiTaTns DANIEL \V. NORRIS,

PATENT tries.

OF ELGIN, ILLINOIS.

MEANS FOR ATT ACHING TOPS TO VESSELS.

SPECIFICATION forming part of Letters Patent No. 311,777, dated February 3, 1885.

Application liled July-25,1984. (X0 model.)

To (1 07? whom, it may concern.-

Be it known that I, DANIEL W. NORRIS, of Elgin, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Means for Attaching Tops to Glass and other Vessels; and I do hereby declare the following to be a full, clear, and e'xafter more fully described, and pointed outin the claims.

Heretofore in constructing and applying caps or covers of the kind described to glass and other such vessels it has been customary to employ jars or vessels of the ordinary form and construction provided with a neck or mouth with substantially vertical walls. Owing to, the method employed for producing and forming such vessels, perfectly cylindrical months or necks of uniform thickness are exceedingly rare. Moreover, in the manufacture of the metal caps or covers by stamping or spinning it is very difficult to produce a smooth vertical inner wall or flange on the cap,the tendency be ing either to draw or buckle and often to break or crack the material, and the vertical flange, instead of being straight and smooth, is almost invariably rough and inclined or flared outward. Hence it is difficult to properly seat and fit the caps of a given size onto vessels intended to be of the proper diameter. These defects in the fitting of the two parts I have obviated by purposely giving a slight angle or inclination to the inner flange of the cover or cap, rendering it more easily and truly made by the stamping operations necessary to produce the caps from disks or sheets of metal,

and by beveling the adjacent or inner edge of the mouth or neck of the jar. As thus constructed and arranged not only is a better fit secured and joints produced which are less liable to be damaged by irregularities in the size and thickness of the mouth or neck, but a larger available contact-surface is secured for the retention of the packing or filling material employed for sealing the joint.

Having thus briefly stated what I regard a the most essential feature of my present in ventioml will now proceed to explain certain of the forms in which I contemplate using the same. I

In the accompanying drawings I have illustrated my invention as applied to four different forms of caps or covers.

Figure 1 represents a fruit-jar cover, and Figs. 2, 3, and 4-covers containing pouringspouts and filling-orifices such as are employed in oil-cans, c.

The letter A in all of the figures indicates the top or mouth of a glass vessel provided with a screw-thread, a, on the outer surface of the neck and an inclined or beveled portion, a, extending around the inner edge of the mouth. This inclined or beveled edge is preferably formed during the process of manufacture as described in an application filed by me simul taneously herewith, and numbered 138,798; but it may be produced by any known means. The top or cover B, preferably of sheet metal, stamped or spun into the desired form, is made with an outwardly-inclined rim or flange, b, which when the cap is applied fits within the mouth of the vessel. It is not essential,except in certain instances, as hereinafter described, that there should be any exact correspondence between the incline on the top or cover and that on the vessel, for whether the walls converge downwardly, as in Fig. 1, diverge downwardly, as in Fig. 2, or are parallel,as in Figs. 3 and 4, the top can readily be inserted and forced down into position, and if a packing ring, (7, is interposed, as is preferable, it will be held and compressed to a greater or less extent, dependent upon the parallelism of the inclined surfaces, thus effectually closing the joint and preventing the escape of the inclosed material. The top or cover thus constructed and applied to the vessel is held and secured in position by the threaded portion 12, made integral with the top proper and extending downward over the screw-threaded portion of the neck, as shown in Figs. 1 and 2; or, if desired,the top or cover'may be made separate, as shown in Figs. 3 and 4, and provided with an outer flanged portion, 19 fitting a shoulder or groove on the top of thejar,the whole held and secured in position by the screw-threaded ring 6 whose inwardly-projecting flange b rests upon the upper. outer portion of the top or cap.

If it is desired to permanently aflix the top or cap to the vessel, a suitable cement may be introduced'in place of the packingring; or the latter may be coated, or, if of an absorbent material, saturated with any suitable liquid cement.

As heretofore stated, it is not essential to the operation of my present invention that the inclined surfaces of the top and the inner edge of the mouth of the vessel. should preserve any fixed angle; but Iprefer that they be formed at different angles, so as to pinch the packing-ring more tightly at one point when the top or cover is forced down into place upon the mouth of the vessel. This l'eatu re is illustrated more cl early in Fig. 1,wherein the incline on the mouth of the vessel is greater than that on the top or cover, and when the latter is pressed down into position its lower edge will fit snugly against the inner wall of the neck, compressing and crowding the packing back into the space formed between the inclined surfaces, thereby producing a very secure and tight joint and at the same time almost or quite inclosing the packing material and leaving but little, if any, of the latter exposed within the vessel.

jacent inclined surfaces, and a screw-threaded connection on the outside of the mouth or neck for pressingand holding the metal top within the mouth of the vessel,'substantially as described.

2. In combination with the beveled-mouth vessel, a metal top or cover located withinthe mouth and provided with an inclined ring or flange, an external flange, and a packing interposed between the adjacent int-lined surfaces. substantially as described.

3. In combination with the inclined or beveled mouth of a vessel, a metal top having an' inclined inner flange or ring, an external flange, and an interposed packing, the said inner flange being inclined atadifferent angle from the incline on the mouth of the vessel, substantially as described.

ll ANIEL WV. NORRIS.

Vvitnes'ses:

A. S. STEUART, CHAS. R. BURR.

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