US820902A - Jar-closure. - Google Patents

Description

PATENTED MAY 15, 1906.

0. BARNES. JAR ULOSURE. APPLIGATION FILED 11017.12, 1901.

WHA/155555;

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JAH-CLOSUPE.

Specification of Letters Patent.

Patented May 15, 1906.

Application iled November l2, 1901. Serial No. 82,003.

To al?, wwnt t nuty concern:

Beit known that I, CHARLES BA'nNns, a citizen of the United States, residing at Zanesville, in the' county of Muskingum, State of Ohio, have invented certain new and useful Improvements inflar-Closures 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 which it appertains to make and use the same.

This invention relates to closures for jars or bottles; and it has for its object to provide a device of this nature including a gasket of elastic material, the parts being so constructed and arranged that when the cover is pressed into place the gasket will be eX- panded laterally with its inner edge against the cover and its outer edge against the jar, while the upper face of the gasket will be in contact with the cover and the lower face against the jar. Thus there will be two faces o' the gasket against the cover and two faces against the jar, so that there can be no leakage either between the gasket and cover or the gasket and jar, the functions of the gasket being equally distributed.

A further object of the invention is to provide a structure which will accomplish these results in a simple, cheap, and durable article.

In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views, Figure 1 is a vertical section through a jar and its closure embodying the present invention. Fig. 2 is a bottom perspective view of the cover of the jar. Fig. 3 is a top plan view of the body of the jar. Fig. 4 is a view similar to Fig. 3 and showing a modification.

Referring now to the drawings, there is shown a jar including a body portion 5 and a neck 6, and at the upper end of the neck and at the outer edge thereof is formed the flange 7, the inner face of which stands at a right angle to the end face 8 of the neck proper, this end face forming, in effect, a shoulder upon which is disposed a gasket 9, which lies with its lower face upon the shoulder and with its outer edge in continuous contact with the inner face of the flange.

The flange 7 projects also outwardly beyond the outer surface of the neck, and the under side or face of the projecting portion is shaped to form the two inclined faces 1() and 11, at the upper ends of which are formed vertical slots or passages through the flange, as indicated by the reference characters 10 and 11 The cover of the jar consists of the disk 15, having the stepped cylindrical projections 16 and 17 on its under face and concentric with the disk, the under face of the disk exterior to said projections being adapted to lie against the upper face of the flange 7. The projection 16 is formed to fit snugly within the inclosure of the flange 7, so that its under face will lie directly above the face or shoulder 8, and on this under face of the projection 16 is formed the annular ridge 18, which in crosssection is triangular, so that when the cover is put in place the ridge will engage the upper face of the gasket. The projection 17 fits snugly into the upper end of the neck beyond the shoulder 8 when the cover is in place.

Over the cover is engaged a yoke 19 of usual form, the ends of which are engaged under the inclined faces of the flange 7, the sides of the yoke being taken through the slots 20 in the edge of the cover. rlhe cover has a milled edge to facilitate rotation of it to move the ends of the yoke over the inclined faces to draw the cover down upon the jar. As the cover is drawn downwardly the ridge 18 enters the gasket and expands it radially against the side face of the step 17 and the inner face of the flange 7, and at the same time the gasket is compressed against the lower face of the stem 16 and the face 8, thus forming a complete seal.

In Fig. 4 of the drawings the flange 7 is shown as being not continuous, which facilitates engagement of a tool beneath the gasket to disengage it from the face 7 when it may stick.

It will be understood that in practice modifications of the specific construction shown may be made and that any suitable materials and proportions may be used in the various parts without departing from the spirit of the invention.

What is claimed is The combination with a vessel having aflat surface surrounding its mouth, and an upwardly-extending flange surrounding the flat surface, the under surface of the said flange being inclined in stepped relation one incline with the other, of a closure for the opening comprising an annular cap having an outwardly-extending annular flange surround- IOO IIO

ing its upper portion7 said flange having an annular rib upon its lower face, said rib having a sharp edge7 said closure adapted to lie within the opening of the vessel with its flange above the fiat surface, a resilient gasket disposed between the flange of the closure and the flat surface of the vessel and adapted to be readily expanded by pressure of the rib thereagainst, and a yoke extending over the closure and provided with depending inwardly-turned ends for engagement with the aforesaid inclined surfaces of the first-mentioned flange, the peripheral edge of the up# per part of the closure being slotted to receive and lock the yoke in engagement there- 1 5 with and whereby the yoke will draw the closure downwardly with respect to the vessel7 the said peripheral edge being milled.

In testimony whereof l afiiX my signature in presence of two witnesses.

CHARLES BARNES. Witnesses:

RAY CHrLooTE, J. PERLEY HARKNEss.

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