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Publication numberUSRE3115 E
Publication typeGrant
Publication dateSep 8, 1868
Publication numberUS RE3115 E, US RE3115E, US-E-RE3115, USRE3115 E, USRE3115E
InventorsS. B. Rowley
Original AssigneeF B
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in sealing preserve-cans
US RE3115 E
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

' UNITED ;v STATES PATENT OFFICE.'

s. n. RoWLEY, on PHILADELPHIA, PENNSYLVANIA, AssIeNEn orl n.. W.

LEWIS. y

IMPROVEMENT IN sEAuNePREsERvE-CANS.

Speciiication forming part of Letters Patent No. 14,245, dated February 12, 1856; R

SeptemberS, 186B.

To all whom it may concern:

'following to be a full,'clear, and exact der scription of the saidinvention, which consists of a mode, described hereinafter, of closing up .the can, by which the tearing or wrinkling of the rubbero'r other packing is eil'ectually prevented; and alsoofa mode, described hereinafter, ot' preventing the contents of the vessel from` gaining access to the packing.

In order to enable others skilled in theart to practice the said-invention, 'I will now proceed to describe a mode of. carrying the same into effect, reference being had to the accompanying drawings, which form a part of this specilication, and in which- Figures 1,'2, and 3 are face views, and, Figs. 4, 5,and 6 perspectiveviews, illustrating a mode of carrying out the inventionV ofthe said "R, W.

IJEWIs.4 Y

A'is a cap oncoyer having an internal screwfthread adapted to au external thread on the neck B of the can or jar. The interior ofthe neck is somewhat larger vin diameter than the throat f, so that an internal annularv projection or shoulder is formed atadistance below the 'edge of the mouth,..and a raised circular edge or` seat, G, is formed'on this shoulder; and between this seat and anfannular projection, J, within the screw-cap iutervenes the rubber packing, when the cap is screwed down-to its place on the .neck B. The rubber packing k rests on this raised edge or seatG; but above the packing is a plate, D, on which the projection J on the cap A bears, so that o n screwing down the latter the rubber is efectually prevented from bein g turned round or twisted or wrinkled by th turning cap.

In order tovprevent the access of the contents of the can or jar to the rubber, there is placed beneath the latter a smaller plate, E, which tits the throat f, and this latter plate may. be connected by a central rivet, or otherwise, to the larger plate D, the rubber interperfectly tight joint.

vening between them. As the smaller plate its snugly iu the throat it electually prevents the access of the contents ot the jar to the rubber which rests ou the raised'egge G, while the upper plate, as before remarked,

prevents the rubber fromA being subjected to` torsion .on the screwing downof the cap.

It' desired, the raised edge or seat G may be ot' suiiicient width to permit the plate E to rest upon it, in which case the annular projection J ot the cap should be `of snilcient diameter to press upon the plate D and the packiu g k at a little distance beyond the space covered by the plate E, so that the pressure on the plate D will compress the'rubber against the raised edge or seat, thereby effecting a In order to prevent'the possibilit-yv ot the plate. D, being turned by the action of the screw-cap, ribs H may be arranged wit-hin the neck ot' the jar, these ribs being adapted to notches I I in the plate D,'and, if desired, the space within the neck,'between the cap and packing, may be filled with melted wax, poured in through an opening in the top of the cap.

It will be seen that the-main object ot this improvement in sealing preserve-cans is to A prevent the rubber or other material usedV for packing from turning round, tearing, or wrinkling; and it will be evident that this object may be attained in cans or jars dering in iormand construction from that described, the only indispensable requisite being `the in terposition ot' a plateA between the rubber or other packing, and the cap or its equivalent having a screw-like action on the can or jar, so as to force the packing to its seat by direct pressure.

This improvement, therefore, of the said R. W. LEWIS, in sealing preserve-cans, is not restricted to the specific construction and arrangement ot' parts herein described; but

'I claim as his invention, and desire-to secure by Letters Patent- 1. A preserve can or jar having a plate interveuing between the gum packing and a packing to its seat on the jar.

eissue No. 3,1 l5, dated -2 i l v:3,1'15

`2. The plate or its equivalentstnated be- Iniestiinony whereof Ivhavesigned lnynnme low the` packing and filling the throat-of the `to this specification beforetwosnbcribing witjar, as set forth, for theV purpose specified.v nesses. v.

3. Ribs H or recesses onsthe jar, in coml 8f3. RQWLEY. bnation with notches or projections on the 'Wtnesses:

plate above the packing, for the purpose JOHN WHITE, specified. v H. HowsoN.

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