US756283A - Jar-closure. - Google Patents

Description

No. 756,283. PATBN'I'ED APR. 5, 1904-. G. T. REED.

JAR CLOSURE.

APPLICATION FILED JUNE 13. 1903.

30 MODEL.

UNITED STATES Patented April 5, 1904.

PATENT OFFICE.

GEORGE T. REED, OF BALTIMORE, MARYLAND, ASSIGNOR OF ONE-HALF TO HORACE SLINGLUFF, OF BALTIMORE, MARYLAND.

JAR-CLOSURE.

SPECIFICATION forming part of Letters Patent No. 756,283, dated April 5, 1904.

Application filed June 13, 1903.

To all whom it may concern:

Be it known that I, GEORGE T. REED, a citizen of the United States of America, residing at No. 7 1 West Fayette street, in the city of Baltimore and State of Maryland, have invented certain new and useful Improvements in Jar-Closures, of which the following is a specification.

The invention herein relates to jar-closures; and has for its object the production of a simple and inexpensively-constructed stopper possessing advantages in point of efliciency and facility of insertion in and Withdrawal from the jar-neck.

The nature of the present improvements will be readily comprehended, reference being had to the following statement descriptive of the details of construction and operation and to the accompanying drawings, in which Figure 1 is a vertical sectional view illustrating my improved stopper applied to the neck of a jar. Fig. 2 is aperspective View of a fibrous wood-pulp thimble constituting the outer member of the stopper. Fig. 3 is a plan View of a metallic thimble forming the inner member of the stopper. Figs. 4 and 5 are sectional views of the metallic thimble, showing modifications. Fig. 6 shows the tapered metallic thimble in elevation. Fig. 7 shows the pulp thimble in section and the taper of its inner screw-threaded wall.

Referring to the drawings by numerals, 1 designates the neck of a glass jar provided with the usual bead 2, although it will be understood that my improved stopper is applicable to any form of jar-neck.

3 denotes a thimble constituting the outer member of my improved stopper, which member is preferably constructed from wood-pulp to have a cylindrical body portion, a preferably-rounded bottom A, and an outwardly-projecting annular flange 5, which latter in the case of beaded necks is provided with a depending or overhanging portion 6. The outer wall of the body portion conforms closely to the interior shape of the neck aperture or mouth, and the inner wall 7 of said body portion is slightly beveled, as shown more clearly in Fig. 1. Said inner wall 7 is provided with Serial No. 161,346. (No model.)

screw-threads 8, formed in the act of molding the thimble. The inner member of the stopper consists of a metallic thimble 9, the body portion 10 of which is tapered exteriorly to conform to the taper of the inner wall 7 of the thimble 3, and said exterior wall is provided with screw-threads to engage the threads 8 of the outer member. The top 11 of the thimble 9 is preferably rounded, as shown, although it is within the scope of the invention to give to said top a difierent form.

As the means for obtaining a finger-hold on the thimble 9 to turn it for insertion or withdrawal I provide wings 12 12, which are formed by cutting the top 11 on the curved lines, (shown at 13 13, Fig. 3,) and bending at a right angle on the lines 1414:, or, as shown in Fig. 4c, finger-apertures 15 15 maybe provided by folding the cut portions to contact with the cut upper surface of said top 11. Fig. 5 illustrates a construction similar to that shown in Fig. 4, with the difference that the cut portions are folded against the under surface of said top 11.

In practice the pulp thimble 3 .is inserted in the neck-aperture of the jar until the flange 5 thereof contacts with the top of said neck. The metallic thimble 9 is then screwed into the pulp thimble, and in the act of inserting the metallic thimble the pulp thimble is slightly expanded to press its outer wall against the wall of the neck aperture, whereby a perfectlytight joint is obtained and the contents of the jar is effectually protected against the admission of am The wings 12 12 or the apertures 15 15 are utilized in inserting the metallic thimble and also in loosening the same to permit Withdrawal of the pulp thimble when access to the interior of the jar is desired. It will be understood that the parts of the stopper need not necessarily be wholly separated in the act of withdrawal, which lessens the chance ,of one of said parts being lost or mislaid.

While the stopper is constructed of two parts, their construction is such that in use they form a single part in inserting and withdrawing the stopper from the neck-aperture, and this advantage is due to providing the inner tapered wall of the non-compressible pulp thimble with screw-threads, its outer wall parallel to its axis, so that the metallic thimble can be screwed. directly into the pulp thimble, and thereby used as the means of inserting and withdrawing the thimble as well as expanding it in sealed relation against the walls of the neck-aperture and to maintain a tight joint of the vertical thimble-walls with the walls of the neck-aperture. Therefore, while the metallic thimble by its direct tapered screw connection with the sealingthimble effectually expands and seals it, it serves by such screw connection as the means by which to withdraw the sealing-thimble.

I do not claim a stopper having an expandible joint-forming member and a screw-plug insertible therein having an expanding function upon said member.

I claim as my invention 1. A jar-closure comprising a wood pulp thimble flanged at its top, having its outer side wall parallel with its axis, its inner side wall screw-threaded and tapered and closed at its bottom, and a thimble of sheet metal having its outer side wall tapered and formed with a screw-thread engaging the screwthread of the wood-pulp thimble, whereby the thimble of sheet metal serves to expand the pulp thimble, to maintain its seal with the jar and to withdraw the sealing-thimble from the jar. V

2. A jar-closure comprising a wood-pulp thimble flanged at its top, having its outer side wall parallel with its axis, its inner side wall screw-threaded, and tapered and closed at its bottom, and a thimble of sheet metal having its outer side wall tapered, formed with a screw-thread engaging the screw-thread of the wood-pulp thimble, and its top formed with finger-holds by cutting out portions and bending them to contact with the surface.

In testimony whereof I afiix my signature in presence of two Witnesses.

GEORGE T. REED.

Witnesses:

HoRAcE SLINGLUFF, LoUIs McKIM KENIs.

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