US941538A - Jar-closure. - Google Patents

Description

Patented Nov. 30. 1909.

J. SCI-HES.

JAR CLOSURE.

APPLICATION FILED AUG. 23, 1909.

[/7 ve/vfar' Masses;

v To all aim it may concern:

JOHN SCHIES, 0E ANDERSON, INDIANA.

- Jen-crowns.

names.

specification of Letters Patent.

Patented Nov. 3th., Halli.

Application filed August 23, 19059. $81131 Ho. 514L216.

Be it known that I; JOHN Son a citizen of the United States, residing at Anderson. in the county of Madison and State of Indiana, have invented certain new and useful Improvements in J ar-Closures, of which the following is a' specitication.

It is the object of my invention to provide a new and improved jar-closure having interior and exterior closing means arranged to co-act and so arranged that secure closing means for the jar may he obtained without danger of seepage of air therethrough.

The invention will he readily understood from the follbwing description andclaims,

, andfrom the drawing, in which latter:

Figure 1 is a central vertical longitudinal section of my improved device showing the jar partly broken away,-and prior to the application of the scrmv-topthereto. Fig. 2 is a similar view of the same with the screwtop in position; and, Fig. 3 is aside elevation of the jar, partly broken away.

1 represents the jar, the neck 2 of which has a mouth 3 comprising a lip 4 provided with an inner annular oove 5 having a lower annular ledge 6 an an upper annular wall 7. The said lower annular ledge has an inner face which is of less diameter than the diameter of the inner face of the upper annular wall of said groove. The said groove'with its lower ledge and upper wall .are preferably respectively confined within their own horizontal planes without extending into each others horizontal planes; that is to say, the said groove, lower ledge and upper wall are respectively located the same distance from the bottom of the jar throughout their circumferences.

The outer face of the lip is provided with ail-integral thread 8, the said lip having an outer annular ledge 9 .at the base of said thread of greater diameter-than said thread. In this manner the said lip is provided at its inner face with an annular groove, having a lower ledge and an upper wall and an outer thread and outer ledge, the lip forming the common support for the groove, the thread and the outer ledge.- The said thread is located between said outer ledge and the outer end 10 of said lip, the inner and outer ledges being preferably located at substantially the same level on opposite sides of said 11).

For sealing. the jar a flexible disk 11 of cardboard or other preferably porous substance which is preferably of slightly greater diameter than the upper wall of said inner groove is forced or tlexed past said upper annular wall into 'said inii'er groove for musing said disk to rest uponsaid inner ledge, the said upper wall preventing retraction of said disk. A body offsefaling material, shown at 12, is then poured in hot state upon the disk, which in turndreats'the air in the slight space 13 inthe' interior of said jar under said disk and above the body l-t of the contents of the jar. This b' vof air being thus heated will expand" lief through the sealing, composition, forming vents thereimforfinl indicated at 15 there :rarefying-theair 13. When the'air has'been thus rarefied, and prior. ooling of said air, a screw-top 16, the'Ytransverse Web 17 of which has :1 preferablyannular depending portion 18, is received about the thread'onthe outer eriphery of the lip and'ysrewed down or causing the said depending portion to he received wiehinsaid lip for contacting the upper surface of the body of sealing material, thereby pressing upon the same, and causin the same to spread for closing the the space escape of air therethrough. A sealing ring 19 of rubber or suitable composition is reeeived between the lower flaring foot 20 of the screw-to and the ledge 9 on the outer face of the ip of the jar. In this manner a secure seal is formed for the jar.

Havin thus fully described my invention, what I c aim as new and desire to secure by Letters Patent is:

1. A glass jar having a mouth'comprising an annular li formed with an annular groove on its inner face and a protruding thread and outer annular ledge on its outer face, the said inner annular groove formed with an inwardly extending annular ledge and an upper wall, the inner face of said lnwardl extendin annular led e bein ofless diameter than the diameter of the inner face of said upper wall of said groove, and the said outer protruding thread being located on said lip between the said outer ledge and the outer end of said lip, sul stantially as described.

2. in combination, a glass jar having a mouth comprising an annular lip formed with an annular groove on its inner face and an outer protruding thread and outer a 'nnular ledge on its outer face, the said inner annuwall of said groove, and the said outer protrudin thread being located about the outer face oi said lip between the said outer ledge and the outer end of said lip, a flexible disk of greater diameter than said diameter of the inner face of said upper wall arranged to be flexed past said upper wall and received in said groove upon said inner ledge, a cushion-ring received upon said outer ledge, a body of sealin material received in hot state upon said flexible disk between said disk and the outer end of said lip for having exhaust-vents formed therein haust-vents, and said screw-topby expansion of the air between said dislc and the contents of said jar, and a screwtop received about said outer thread and having a depending portion received within said lip for contacting said sealing-material and spreading the same for closing said exprovided with an annular foot arranged to press upon said cushion-ring by screwing said top about said outer thread, substantially as described.

In testimony whereof, I have signed my name hereto in the presence of two subscribing witnesses.

JOHN SCHIES.

\Vitnesses lLana Somns, Ginnnuna Serums.

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