USRE3115E - Improvement in sealing preserve-cans - Google Patents
Improvement in sealing preserve-cans Download PDFInfo
- Publication number
- USRE3115E USRE3115E US RE3115 E USRE3115 E US RE3115E
- Authority
- US
- United States
- Prior art keywords
- plate
- cans
- packing
- improvement
- cap
- Prior art date
Links
- 238000007789 sealing Methods 0.000 title description 6
- 210000003800 Pharynx Anatomy 0.000 description 6
- 210000000614 Ribs Anatomy 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000036633 rest Effects 0.000 description 4
- 241000733322 Platea Species 0.000 description 2
- 229920000591 gum Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
Images
Definitions
- 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 capitated from bein g turned round or twisted or wrinkled by th turning cap.
- 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.
- 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.
- 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.
- 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.
- a preserve can or jar having a plate interveuing between the gum packing and a packing to its seat on the jar.
Family
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