US729726A - Jar-closure. - Google Patents

Description

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rares Patented June 2, 1903.

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AfrnNr JAR-CLOSURE.

SPECIFICATION forming part of Letters Patent No. 729,726, dated June 2, 1903.

Application filed October 29.51901. Serial No. 80,464. (No model.)

To a/ZZ whom t may concern: l

Be it known that I, ANNIE ELIZA BRAY, a citizen of the United States, residing at Los Gatos, in the county of Santa Clara and State of California, have invented a new and useful .lar-Closure, of which the following is a speciication.

This invention relates to a closure for a jar` specially adapted to containpreservedfruit; and the object of the same is to prevent the fruit from fermenting and to facilitate the applicationand removal of the closure and also insure a tight fitting of the latter.

vWith these and other objects in view the invention consists in the construction and arrangement of the several parts, which will be hereinafter more fully described and claimed.

In the drawings, Figure l is a perspective View of a jar embodying the features of the invention and showing the manner of arranging the parts of the closure when pursuing the sealing operation. Fig. 2 is an enlarged transverse vertical section of the upper portion of the jai-,showing the closure completely applied. 4

g Similar numerals of reference are employed to indicate corresponding parts in both views.`

The numeral l designates the jar-body, which is of low or squatty formthat is, the

height and diameter` are approximately:

equal-and at the upper portion thereof are exterior projections 2 for use in assisting toV tightly apply or remove the closure,which will be hereinafter set forth. The upper extremity of the body l is provided with an inwardlyextending offset 3, from the inner terminal of which a neck 4 vertically rises,and is provided with a series of spiral corrugations 5, which form threads. The neck 4 has an enlarged diameter, so that the entrance and exit of the jar is materially increased in size for convenience in inserting or disposing the fruit or other material therein and likewise facilitating the removal of the contents of the jar. The capacity of the jar will be the same as the ordinary devices of this class, and to prevent injury to the contents ofthe jar `by the actinic light-rays it is proposed to color the jar in such manner as t obstruct the passage of said rays into the'interior thereof.

The mouth of the neck 4 is closed by a cover comprising a flat plate or disk 6, which is substantially of the saine diameter as the neck and rests upon the upper edge of the latter. The disk 6 `is provided with a pendent annular ange 7, which is located inwardly from the marginal edge of said disk and is designed to fit into the interior portion of the neck 4, a space being provided between the outer vertical wall of the ange and the inner adjacent surface of the neck. .A pendent metallic iiange or ring S is used with the plate or disk 6 and is provided with internal screwthreads to engage the spiral corrugations 5 to tightly bind the plate or disk 6 upon the upper edge of the neck, and thereby form a tight closure for the month of the jar. The upper extremity of the ring S is formed with an inwardly bent horizontally-disposed annular projection 9, which bears uponthe upper side of the plate or disk 6 a distanceequal to, considered inwardly from the marginal edge of said plate or disk, the distance from the'marginal edge of said plate or disk and the outer wall of the pendent iange 7. interposed between the under side of the plate or disk and the upper edge of the jar-neck is a rubber or similar packing-ring or gasket l0, which is equal in width to thedistance between the marginaledge of the plate ordisk 6 and the outer Wall of the iiange 7, so that when the plate or `disk 6 is tightly pressed against the upper edge of the neck, with the ring or gasket 10 in place, said ring or gasket will be drawn down flat and project inwardly beyond theinner surface of the upper portion of the neck and be coniined between the ring 8 and theflange 7 to produce an absolutely tight or hermetically-sealed joint. By extending the annular projection 9 of the ring 8 inwardly over the upper side of the edge portion of the plate or disk the pressure on the latter is extended over a greater surface, and the gasket or ring l0 will be more regularly attened and maintained in such condition to avoid any possibility of entrance ofair into the jar after the latter has been sealedl It will also be seen that the flange 7 insures an accurate disposition of the ring or gasket lO when the plate or disk 6 is placed upon the upper edge of the neck, the said gasket or ring being first stretched around the ange `7' and held intact with the plate or disk when the latter is applied to the neck. It will also be observed that the ring S is so proportioned that when it is applied it will extend over the full vertical distance of the neck, and this extended engagement, together with the upper annular projection 9 and the gasket or ring IO, interposed and held as set forth, will produce an air-tight closure. To assist in applying the ring S, it has projections l'l at regular intervals thereon, which are intended to be engaged by a suitable gripping device, and these projections will be used conjointly with the projections 2 on the body 1 in theoperation of closing the jar or removing the closure therefrom.

One means of closing the jar is shown by Fig. 1, and it will be seen that the plate or disk 6 is firmly held down on the upper edge of the neck et While the ring 8 is screwed onto the said neck, so as to bring the annular projection 9 at the top of the ring in binding contact with the said plate or disk. After the fruit, which is placed within the jar in heated condition, cools a vacuum is set up between the upper surface of the same and the plate or disk 6, and the said plate or disk will by this means also be held firmly and reliably against the upper edge of the neck by 'the suction necessarily resulting. In opening the jar the ring Sis first removed and an implementof suitable character is inserted under the gasket or ring l0 to slightly raise the latter and the disk or plate to permit the air to enter and break the vacuum, after which the said plate or disk may be readily removed.

The increased diameter of the jar will insure a more stable rest for the saine and render it less liable to turn over. The large mouth provided by the neck of increased diameter will permit the insertion or disposal of fruit of large size within the body of the jar without mashing or breaking said fruit, and, furthermore, the said. large mouth will easily admit a hand, and thereby allow the perfect cleansing of the jar without the least inconvenience. A further advantage of the present improved form of jar is that'no metal comes in contact with the contents of the jar, the plate or disk 6 being formed of glass similarly to the body of the jar, and by making the plate or disk of the material set forth it can be more readily cleansed, as can also the ring S, if found necessary. It will also be observed that the gasket 10 will never become displaced in the sealing operation, because the plate or disk 6 is held stationary after it is applied and the ring S alone is turned on the neck, and by this means the said gasket can with certainty be applied in such manner as to regularly and fiatly engage the entire upper edge portion of the neck.

Having thus described the invention, what is claimed as new is In a jar-closure, the combination with a jarbody having an upper neck provided with a fiat top edge, of a fiat non-corrosive disk having a lower depending flange located at a distance inwardly from the marginal edge of said disk, a rubber gasket applied to the under edge portion of the disk and equal in width to the distance between the outer wall of the fiange and the margin of the said disk, and a ring independent of the disk to removably engage the jar-neck and having an upper inwardly extending horizontally disposed annular fiange or projection to bear upon the upper side of the disk, the said fiange or projection ot the ring being also equal in inward extent to the distance between the outer wall of the flange of the disk and the margin of the latter, whereby the flange of the disk will be located inwardly from and out of contact with the inner upper portion of the neck and the gasket held fiat upon the upper edge of said neck to produce a perfect air-tight joint and also to hold the gasket in place against slipping, the disk being applied fiat and held stationary on the upper edge of the neck while the dring is run downwardly over the neck in securing position.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

ANNIE ELIZA BRAY.

Witnesses:

H. J. GRALL, GEORGE W. KELLUM.

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