US96873A - Improvement in fastenings for fruit-jars - Google Patents

Description

E. B OORSE.

Fruit Jar.

No; 96,873. Patented Nov. 16, 186 9.

Witnesses: W

gfglatwt (Mitre.

" ELIAM BOORSE, OF PHILADELPHIA, PENNSYLVANIA.

Letters Patent N 96,873, dated November 16, 1869.

IMPROVEMENT IN FASTENINGS FOR FRUIT-JARS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, Eraser Boonsn, of the city and county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Fruit- Jars; and 1 do hereby declare the following-to be a full, clear, and exactdescription of the nature there of, sufiicient to enable others skilled in the art to which my invention appcrtains to make and use the same, reference being bad to the accompanying drawings, making part of this specification, in which Figure'l is a side view of the device illustrating my invention.

Figure 2 is a top or plan view thereof.

Similar letters of reference indicate corresponding parts in the two figures.

My invention consists in constructing the lockingcap of a fi'uit-ja-r of a series of arms of unequal lengths and forming hooks on their lower ends, which are adapted to take hold of the thread in the neck of the jar, so that by rotating said cap, the arms engage with the thread and draw the cap with them, so that the latter is firmly and securely held in place with the top or cover interposed between the cap and neck, asusual.

A represcntsthe body of a fruit-jar of ordinary constructiou, and having its neck formed with a screwthread, B. y

0 represents the lockingcap, which is constructed, by preference, of metal, and consists of a top, 0, which is of the form of a flat disk or ring, with which are formed a series of ar1ns,'D D D D.

In the present case, these arms are four in number, and may be cast with or cut out of the samepiece with the top 0', and are ofunequal lengths, their lower ends are bent inwardly or toward each other, and form hooks or catches E.

These arms may be formed separately from the top and subsequently soldered, riveted, or otherwise secured to saidtop, as most desirable or convenient.

The operation is as follows:

of the cap may consist of an open ring.

The cap 0 is placed on the neck of the jar with the longest arm D at the beginning of the thread. A rotation of the cap will cause the arm D to engage with the thread and advance therein. The arm D, and subsequently the other arms, follow the direction and oporation of the armv 1) until the cap cannot be further rotated, which is owing to its arrival or stoppage on the neck of the jar.

It will be found that the cap is firmly held in place on the jar.

Should the thread break at any portion and one or moie of the aims be thereby released, the other arms will be found suflicient to hold the cap.

An ordinary top or cover may be interposed between i the cap and the neck of the jar, and a rubber band or gasket applied, as ordinarily. In this case, the top 0 It the ordinary top or cover is dispensed with, the top of the cap must be. made entire, or. in theform of a disk, and the gasket, if employed, must be located between the cap and the neck of the jar.

The arms 1) D I) may be lengthened, so as to engage with the thread of the neck from their commencement to termination, or the thread may begin at or about the middle of the neck, instead of at its upper end, as shown in the drawings, but these are matters which are subjectto desire or necessity.

Having thus described my invention, 7 \Vhat I claim as new, and desire to secure by Letters Patent, is-

As a new article of manufiicture, the locking-cap for screw-necked jars, constructed with engaging arms 1) 1) I) 1) of unequal lengths, whereby the hooked ends of said arms engage under the same thread and hold at different points thereon, substantially as represented a-nd described, and for the purpose specified,

' ELIAM BOORSE.

lYit-nesscs JOHN A. WIEDnnsrrnrM, W. H. SMITH.

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