US807223A - Seal and tubular inlet for cans and other receptacles. - Google Patents

Description

PATENTED DEC. 12, 1905.

H. A. TRUESDALE.

SEAL AND TUBULAR INLET FOR CANS AND OTHER REOEPTAOLES.

APPLIOATION FILED SEPT. 2. 1903.

UNITED STATES PATENT oiinorj.v

HARRY A. TRUESDALE, OF CONNEAUT, OHIO, ASSIGNOR TO- OONNEAUT can COMPANY, OF 'CONNEAUT, HIO, A CGRPORATION OF OHIO. I

SEAL AND TUBULAR lNLET F'oR cANs AND OTHER RECEPTACLES.

Specification of Letters Patent. Application filed September 2, 1903. Serial No. 171,707-

Patented-Dec. 12, 1905.

To all whom it may concern.-

Be it known that I, HARRY A. TRUESDALE,

' a citizen of the United States, residing at Conneaut, in the county of Ashtabula and State of Ohio, have invented certain new and useful Im rovements in Seals and Tubular Inlets for a'ns and other Receptacles; and I do hereby declare the following to be a full,

clear, and exact description of the invention, such as will enable others skilled in the art to I which it appertains to make and use the neck, the last-name same.

This invention relates to metallic seals for the tubular screwnecks or inlets of cans; and it consists in the construction and combination of arts hereinafter more particularly set fort andclaimed. V

In the accompanying drawings, Figure 1 represents a side view of'a screw-neck for a canand a seal embodyingmy invention with a tool in the act of applyingbthe seal to said part eing in central vertical section, the other parts in side elevation. Figs. 2, 3, and 4 represent, respectively, detail pers ective views of the screw-neck, the seal, and t e cover, a small part of the top of the canbeing shown with t e first-named in Fig. 2 and a part of the peripheral wall of the seal being broken awa ig. 3.

A designates the tu ular screw-neck, having an upwardly and inwardly tapered annular bearing A in its'upper part to receive the correspondingly-formed tapering circular peri hery of the body B of the cap or seal B, which ploses the said screw-neck. The said seal has acentral inner recess B, corresponding to the said body B and caused by striking up the latter. The exterior of the said screwneck has acircular head or hollow wire a formed thereon, and the upper part of the said seal or cap'has an annular ange b overlapping the said bead or wire and adapted to be pinched in or bent or curved under the same protective cover while the seal or cap B is in place or as a temporary alternative closure when said cap or seal is absent.

The above-described construction of seal and screw-neck insures a very secure lock between the parts, while attalmn all the ad- 6o vantages of a tapered joint, -w ich will of course tighten as'the seal is pressed into its seat in the neck, The seal is'of one iece of metal or equivalent substance havln the necessary degree of flexibility and sti ness. 6,5

' It mustof course be sufficiently Stifi to permanentlyretai'n ltS' shape against gaseous pressure or any normal accidental pressure, yet suificiently flexible to yield to a tool applied at its edgebynormal force, as described, v I

Of course the seal may be applied in this way to an tubular part rovide with the necessary ead or outwar 1 turned rim and bear-' ing and. adapted to t' the said seal. The screws of the screw-neck have no function in combination with the said seal and may be dispensed with, but are here retained in descrlption andillustration because of their common use as outlets and inlets for cans and similar receptacles; Since the lock be- -tween the partsls altogether external, there is no riskof scratching either of the bearingsurfaces by rojections. Furthermore the external locking parts are easily accessible for unlocking at will.

When the annular flange or downwardlyextendin outer part b of the cap is pinched in, as be ore stated, by the tool above mentioned, whether at one point or more than one point of its periphery, it will necessarily at' such point or oints of pinching be curved or bent against t e neck of the can and under thebead of the said neck, closely enga ing the 7 same and locking the cap thereto. 11 rac-.- tice this pinching or crimping is usual y effected at several points, although one such impression will often suffice as a lock, or, if preferred, the tool may be shifted but very slightly from point to point, making-the impressions practicall continuous, though said tool is not adapted nor intended to roll a continuous-edge under the head of the neck. Neither soldering nor cement is needed to lock the cap and the pan-neck, which two arts constitute the closure of the can ;-but a ittle cement is placed as a fillin' or packing only in the annular groove of t e cap formed by the bendof the upwardly and downwardly extending portion ending in the flange thus impressed. This cement is solidified before the cap is applied and fits onthe bead or rim of the neck, cooperating with the fit of the tapered body of the cap against the inner' face of the neck and with the fit of the flange of the ca against the bead or rim to makea perfect uid-tight seal when ut in its place y hand before any tool has een applied or any impression made. The cap is, indeed,

com lete as aseal without any im resslon or ben ing of its flange or downwar y-extendouter part'and is often thus used, the

or y objection being the risk of dislodgment,

as 1t holds its place by friction only.- The application of the tool by pinching in the flange under the bead at intervals providesthe desired means of ositive locking.

Having thus descri ed my invent1on,what

I claim as new, and desire ters Patent, is' i 1. A can-top havin aneck of less diameter than the said top an provided with an upwardly-extending flange, the upper portion of which is curved over to, form a bead with the free edge against the saidflange, in combination wltha cap having an upwardly-exto secure by Let tend-ing portion engaging the inner side of said flange and a downwardly-extendin portion surrounding the said bead, the e ge of wardlyextending fportion being bent inwardly a ainst the ange and closely enga in said ead whereby said cap is secure y j olned without soldering.

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

HARRY A. TRUESDALE.

'Witnesses: i

W. P. SANFORD, JAMES R. STOFFER.

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